Electrodissolution separation determination method and system for impurity elements in high-purity zirconium

Abstract

The invention discloses an electrodissolution separation determination method and system for impurity elements in high-purity zirconium, and belongs to the technical field of electrodissolution separation determination. The method comprises the following steps: performing electrode state optimization treatment on an electrode according to electrode state parameters obtained in an electrodissolution process to reduce the influence of abnormal electrode state on the electrodissolution reaction efficiency; the deviation electrode position is obtained according to the electrode position monitored in real time and the preset electrode position, dynamic electrolyte component adjustment is conducted according to the deviation electrode position, and the influence of the abnormal electrode position on the impurity separation precision in the electrodissolution separation process is reduced; the electrode potential is dynamically optimized according to electrochemical reaction parameters obtained in the electrodissolution process, the influence of dynamic pH gradient imbalance of the electrolyte on the potential stability in the electrodissolution process is reduced, and the stability and efficiency of electrodissolution separation of high-purity zirconium are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrodissolution separation and determination, and in particular to a method and system for electrodissolution separation and determination of impurity elements in high-purity zirconium. Background Art

[0002] High-purity zirconium, a vital metal material, is widely used in high-tech fields such as nuclear energy and aerospace. Its purity directly impacts the material's performance and reliability. During the production of high-purity zirconium, the content of impurities often requires strict control. Electrolysis separation is an effective method for accurately determining these impurities.

[0003] The existing method of electrodissolution separation of impurity elements in high-purity zirconium is to utilize the difference in electrochemical properties between zirconium and other impurity elements in the electrolyte, selectively dissolve zirconium by controlling the potential, and the impurity elements remain on the electrode surface or in the electrolyte because they do not reach the dissolution potential or are insoluble, thereby achieving separation and enrichment.

[0004] For example, the patent application with publication number CN117269154A discloses a method for detecting metal impurity elements in an electrolyte, comprising: a pretreatment step, a digestion step, and a detection step. The pretreatment step comprises pretreating a digestion container with an inorganic acid; the digestion step comprises digesting the electrolyte to dissolve the metal impurities in the electrolyte to obtain a test liquid; the detection step comprises determining the content of the metal impurity elements in the test liquid, wherein the electrolyte includes the metal impurity elements and the matrix elements, wherein the detection step comprises a standard curve acquisition sub-step and a determination sub-step. The digestion step dissolves the metal impurities in the electrolyte in the form of solid particles, so that the metal impurities are all present in the test liquid in the form of cations, and the detection step determines the metal impurity elements in the test liquid.

[0005] For example, the invention patent with announcement number CN106596518B discloses a method for determining the zirconium and impurity content in uranium-zirconium alloy, which includes: establishing a detection method for determining impurity elements and zirconium in uranium-zirconium alloy by plasma emission spectrometry, dissolving the sample by mixed acid of nitrate and hydrofluoric acid, eliminating matrix interference by matrix matching method and Doppler fitting correction method, and detecting the content of the element to be measured by plasma emission spectrometer.

[0006] However, in the process of implementing the technical solutions of the invention in the embodiments of the present application, the present application found that the above technology has at least the following technical problems:

[0007] In the prior art, during the electrolysis process, hydrogen may be released due to the acidity of the electrolyte, which will increase the OH concentration near the electrode at the cathode. - The concentration of H +The concentration of zirconium changes the potential distribution near the electrode, causing changes in the local potential, leading to inaccurate potential control, affecting the uniformity of the electrodissolution reaction and the selective dissolution effect, resulting in poor electrodissolution separation effect of impurity elements in high-purity zirconium. Summary of the Invention

[0008] The present invention provides a method and system for the electrolysis separation and determination of impurity elements in high-purity zirconium, which solves the problem in the prior art that hydrogen may be precipitated during the electrolysis process due to the acidic electrolyte, which increases OH near the electrode at the cathode. - The concentration of H + The concentration of zirconium changes the potential distribution near the electrode, causing changes in the local potential, resulting in inaccurate potential control, affecting the uniformity and selective dissolution effect of the electrodissolution reaction, and thus resulting in poor electrodissolution separation of impurity elements in high-purity zirconium. The stability and efficiency of the electrodissolution separation of high-purity zirconium have been significantly improved.

[0009] The present invention provides an electrodissolution separation and determination method for impurity elements in high-purity zirconium, comprising the following steps: performing electrode state optimization processing on the electrode according to electrode state parameters obtained during the electrodissolution process, the electrode state optimization processing being used to reduce the influence of abnormal electrode state on the electrodissolution reaction efficiency; obtaining a deviation electrode position according to the real-time monitored electrode position and a preset electrode position, and dynamically adjusting the electrolyte composition according to the deviation electrode position, the dynamic electrolyte composition adjustment being used to reduce the influence of abnormal electrode position on the impurity separation accuracy during the electrodissolution separation process; performing dynamic optimization processing on the electrode potential according to the electrochemical reaction parameters obtained during the electrodissolution process, the dynamic optimization processing being used to reduce the influence of dynamic pH gradient imbalance of the electrolyte on the potential stability during the electrodissolution process, thereby improving the stability and efficiency of the electrodissolution process.

[0010] The present invention also provides an electrodissolution separation and determination system for impurity elements in high-purity zirconium, comprising an electrode state processing module, an electrolyte composition adjustment module, a potential optimization processing module and an impurity separation database; wherein the electrode state processing module is used to perform electrode state optimization processing on the electrode according to the electrode state parameters obtained during the electrodissolution process, and the electrode state optimization processing is used to reduce the impact of abnormal electrode state on the efficiency of the electrodissolution reaction; the electrolyte composition adjustment module is used to obtain the deviation electrode position according to the real-time monitored electrode position and the preset electrode position, and to perform dynamic electrolyte composition adjustment according to the deviation electrode position, and the dynamic electrolyte composition adjustment is used to reduce the impact of abnormal electrode position on the impurity separation accuracy during the electrodissolution separation process; the potential optimization processing module is used to perform dynamic optimization processing on the electrode potential according to the electrochemical reaction parameters obtained during the electrodissolution process, and the dynamic optimization processing is used to reduce the impact of the dynamic pH gradient imbalance of the electrolyte on the potential stability during the electrodissolution process, thereby improving the stability and efficiency of the electrodissolution process.

[0011] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0012] 1. The present invention provides a method and system for the electrodissolution separation and determination of impurity elements in high-purity zirconium. By dynamically adjusting the electrode state and optimizing the electrolyte composition and electrode potential, the negative impact of abnormal electrode state on the electrodissolution reaction efficiency is effectively reduced, and real-time monitoring and dynamic optimization of electrode state, position deviation and electrochemical reaction parameters are achieved, thereby significantly improving the stability and separation efficiency of the electrodissolution process.

[0013] 2. The present invention optimizes the working conditions of the cathode and anode during the electrodissolution process in real time through quantitative analysis of electrode state parameters and threshold comparison of cathode and anode state indices, thereby effectively avoiding the adsorption of hydrogen bubbles and the deposition of metal impurities, thereby achieving improved stability and reaction efficiency during the electrodissolution process.

[0014] 3. The present invention dynamically adjusts the electrolyte composition of the cathode and anode by comparing the deviation electrode position with a preset threshold, thereby timely detecting electrode deviation and taking corresponding adjustment measures, thereby achieving precise control of the electrolyte composition and optimization of the electrolysis process, improving the efficiency and stability of the electrolysis process, reducing the risk of equipment failure, and ensuring the smooth progress of the electrolytic dissolution process.

[0015] 4. The present invention dynamically quantifies the influence of the electrode and electrolyte pH gradient on the electrode potential through electrochemical reaction parameters, combined with the threshold comparison of the potential influence index, thereby optimizing the pH stability of the electrolyte and the polarization degree of the electrode surface, thereby achieving efficient and stable operation of the electrodissolution process, reducing potential fluctuations, improving the stability of the electrodissolution process and preventing the adverse effects of the electrochemical reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Flowchart of the method for electrodissolution separation and determination of impurity elements in high-purity zirconium provided in an embodiment of the present application.

[0017] Figure 2 A mind map for electrode status monitoring provided in an embodiment of the present application.

[0018] Figure 3 A mind map for electrode position monitoring provided in an embodiment of the present application.

[0019] Figure 4 A mind map for electrochemical reaction monitoring provided in the embodiments of this application. DETAILED DESCRIPTION

[0020] The present invention provides a method and system for the electrolysis separation and determination of impurity elements in high-purity zirconium. The present invention solves the problem in the prior art that hydrogen may be precipitated during the electrolysis process due to the acidic electrolyte, which increases OH near the electrode at the cathode. - The concentration of H + The concentration of the electrode changes the potential distribution near the electrode, causing changes in the local potential, resulting in inaccurate potential control, affecting the uniformity of the electrodissolution reaction and the selective dissolution effect, thereby resulting in poor electrodissolution separation effect of impurity elements in high-purity zirconium. The electrode state parameters obtained during the electrodissolution process are used to optimize the electrode state; the deviation electrode position is obtained based on the real-time monitored electrode position and the preset electrode position, and the dynamic electrolyte composition is adjusted according to the deviation electrode position; the electrode potential is dynamically optimized according to the electrochemical reaction parameters obtained during the electrodissolution process, thereby improving the stability and efficiency of the electrodissolution process, and significantly improving the stability and efficiency of the electrodissolution separation of high-purity zirconium.

[0021] The technical solution in the embodiment of the present application is to solve the above problem that in the electrolysis process, hydrogen may be precipitated due to the acidic electrolyte, which will increase the OH near the electrode at the cathode. - The concentration of H + The concentration of zirconium changes the potential distribution near the electrode, causing local potential changes, leading to inaccurate potential control, affecting the uniformity of the electrodissolution reaction and the selective dissolution effect, resulting in poor electrodissolution separation effect of impurity elements in high-purity zirconium. The overall idea is as follows:

[0022] First, electrode optimization is performed based on real-time electrode state parameters to eliminate the impact of electrode anomalies on reaction efficiency. Second, dynamic electrolyte composition adjustment is implemented by monitoring electrode position deviation to ensure the accuracy of impurity separation. Finally, the electrode potential is dynamically optimized according to the electrochemical reaction parameters to maintain a stable pH gradient, significantly improving the stability and efficiency of high-purity zirconium electrodissolution separation.

[0023] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0024] like Figure 1As shown, it is a flow chart of the electrodissolution separation and determination method for impurity elements in high-purity zirconium provided in an embodiment of the present application, the method comprising the following steps: performing electrode state optimization processing on the electrode according to the electrode state parameters obtained during the electrodissolution process, the electrode state optimization processing is used to reduce the influence of abnormal electrode state on the electrodissolution reaction efficiency; obtaining the deviation electrode position according to the real-time monitored electrode position and the preset electrode position, and dynamically adjusting the electrolyte composition according to the deviation electrode position, the dynamic electrolyte composition adjustment is used to reduce the influence of abnormal electrode position on the impurity separation accuracy during the electrodissolution separation process; performing dynamic optimization processing on the electrode potential according to the electrochemical reaction parameters obtained during the electrodissolution process, the dynamic optimization processing is used to reduce the influence of the dynamic pH gradient imbalance of the electrolyte on the potential stability during the electrodissolution process, thereby improving the stability and efficiency of the electrodissolution process.

[0025] In this embodiment, by optimizing the electrode state and adjusting the electrode operating parameters in real time, abnormal conditions such as electrode passivation and corrosion can be reduced, thereby improving the efficiency of the electrodissolution reaction; dynamic electrolyte composition adjustment based on the deviation electrode position can compensate for the uneven electrolyte flow field caused by electrode displacement and improve the impurity separation accuracy; combined with the dynamic potential optimization of the electrochemical reaction parameters, the electrolyte pH gradient can be stabilized, avoiding electrode loss or side reactions caused by local over-acidity / over-alkalinity, and ultimately enhancing the overall stability and separation efficiency of the electrodissolution process. This method synergistically optimizes the key variables in the electrodissolution process, effectively suppresses interference factors such as electrode anomalies, position offsets, and pH imbalance, and significantly improves the reaction efficiency, impurity separation accuracy, and system stability.

[0026] In addition, the impurity separation database is used to store data related to the electro-dissolution separation determination method of impurity elements in high-purity zirconium, including: the first threshold of the cathode state index, the second threshold of the cathode state index, the critical open-circuit potential, the reference current density and the open-circuit potential contribution, etc. The data in the impurity separation database can be directly obtained through the relevant literature on high-purity zirconium impurity analysis in public databases such as the Wanfang Data Knowledge Service Platform or VIP.com, or through cooperation with the non-ferrous metals industry or related scientific research institutions.

[0027] like Figure 2 The figure below shows a mind map for electrode state monitoring provided by an embodiment of this application. The specific steps are as follows: First, monitor the electrode state to determine whether the electrode state is abnormal. If the electrode state is abnormal, perform electrode state optimization processing to improve reaction efficiency; if the electrode state is normal, maintain the current state. By monitoring and optimizing the electrode state, the efficient reaction is ensured.

[0028] Among them, the step of optimizing the electrode state according to the electrode state parameters obtained during the electrodissolution process includes: A1, quantifying the influence of the electrode state on the electrodissolution reaction efficiency according to the electrode state parameters to obtain an electrode state index, the electrode state parameters include cathode state parameters and anode state parameters, the cathode state parameters include cathode open circuit potential, cathode current density and cathode current efficiency, the anode state parameters include anode open circuit potential, anode current density and anode current efficiency, the electrode state index represents quantitative data on the degree of influence of open circuit potential, current density and current efficiency on the electrodissolution reaction efficiency, specifically including cathode state index and anode state index.

[0029] Among them, the step of quantifying the influence of electrode state on electrodissolution reaction efficiency according to electrode state parameters and obtaining electrode state index includes: obtaining electrode state parameter reference data from a preset impurity separation database, the electrode state parameter reference data includes cathode state parameter reference data and anode state parameter reference data, the cathode state parameter reference data includes: cathode critical open circuit potential, cathode reference current density, cathode allowable deviation current density and cathode critical current efficiency, the anode state parameter reference data includes: anode critical open circuit potential, anode reference current density, anode allowable deviation current density and anode critical current efficiency; performing a ratio approximation operation on the absolute value of cathode open circuit potential and cathode critical open circuit potential to obtain cathode open circuit potential influencing parameter; performing a ratio approximation operation on anode open circuit potential and anode critical open circuit potential to obtain anode open circuit potential influencing parameter; performing a relative deviation conformity operation on cathode allowable deviation current density, cathode current density and cathode reference current density to obtain cathode current density ... cathode open circuit potential influencing parameter; performing a ratio approximation operation on anode open circuit potential and anode critical open circuit potential to obtain cathode open circuit potential influencing parameter; performing a ratio approximation operation on cathode allowable deviation current density, cathode current density and cathode reference current density to obtain cathode current density influencing parameter; performing a ratio approximation operation on anode allowable deviation current density, anode current density and cathode reference current density to obtain cathode current density influencing parameter. The cathode current efficiency and the cathode critical current efficiency are calculated with a proportion approach to obtain the cathode current efficiency influencing parameter; the anode current efficiency and the anode critical current efficiency are calculated with a proportion approach to obtain the anode current efficiency influencing parameter; the cathode state parameter contribution is used to weight the cathode open circuit potential influencing parameter, the cathode current density influencing parameter and the cathode current efficiency influencing parameter, and then the cathode weighted processing results are coupled to obtain the cathode state index, and the cathode state parameter contribution includes: cathode open circuit potential contribution, cathode current density contribution and cathode current efficiency contribution; the anode state parameter contribution is used to weight the anode open circuit potential influencing parameter, the anode current density influencing parameter and the anode current efficiency influencing parameter, and then the anode weighted processing results are coupled to obtain the anode state index, and the anode state parameter contribution includes: anode open circuit potential contribution, anode current density contribution and anode current efficiency contribution.

[0030] The cathode state index is obtained as follows:

[0031]

[0032] Where CS represents the cathode state index, α1 represents the cathode open circuit potential contribution, α2 represents the cathode current density contribution, α3 represents the cathode current efficiency contribution, and OC ... open circuit potential contribution. 1c Indicates the cathode open circuit potential. The cathode open circuit potential is a negative number. The smaller the open circuit potential is, the stronger the reduction ability is. 0c Indicates the cathode critical open circuit potential, CD 1c represents the cathode current density, CD 0c represents the cathode reference current density, CD 2c Indicates the cathode allowable deviation current density, CE 1c represents cathode current efficiency, CE 0c represents the cathode critical current efficiency.

[0033] The anode state index is obtained as follows:

[0034]

[0035] Where AS represents the anode state index, β1 represents the anode open circuit potential contribution, β2 represents the anode current density contribution, β3 represents the anode current efficiency contribution, and OC represents the anode current efficiency contribution. 1a Indicates the anode open circuit potential. The anode open circuit potential is a positive number. The larger the open circuit potential value, the stronger the oxidation ability. 0a Indicates the critical open circuit potential of the anode, CD 1a represents the anode current density, CD 0a represents the anode reference current density, CD 2a Indicates the anode allowable deviation current density, CE 1a represents the anode current efficiency, CE 0a represents the anode critical current efficiency.

[0036] α1, α2 and α3 are the contributions of the cathode open circuit potential, cathode current density and cathode current efficiency preset in the impurity separation database, respectively. β1, β2 and β3 are the contributions of the anode open circuit potential, anode current density and anode current efficiency preset in the impurity separation database, respectively. These contributions are numerical indicators that measure the influence of the above-mentioned electrode state parameters on the electrode state index. Taking the cathode as an example, specifically, there is a mapping relationship table for each of the cathode open circuit potential, cathode current density and cathode current efficiency. The table records each possible cathode state parameter value and its corresponding contribution. These mapping relationships can be one-to-one or many-to-one. For example, in actual applications, when it is necessary to evaluate the cathode state index, the measured cathode open circuit potential, cathode current density and cathode current efficiency can be input into their respective corresponding mapping relationship tables, and the contributions corresponding to these values can be found. The contribution range is between 0 and 1. The same is true for the anode.

[0037] A2 compares the cathode state index threshold and the anode state index threshold obtained from the preset impurity separation database with the corresponding electrode state index respectively, and performs electrode state optimization processing based on the comparison results. The electrode state optimization processing includes cathode state optimization processing and anode state optimization processing. The cathode state index threshold includes a cathode state index first threshold and a cathode state index second threshold, and the anode state index threshold includes anode state index first threshold and anode state index second threshold.

[0038] Specifically, the specific process of cathode state optimization treatment is as follows: the cathode state index is compared with the first threshold value of the cathode state index and the second threshold value of the cathode state index respectively. If the cathode state index is greater than or equal to the second threshold value of the cathode state index, no additional operation is performed; if the cathode state index is greater than or equal to the first threshold value of the cathode state index and less than the second threshold value of the cathode state index, it means that local hydrogen bubbles are adsorbed, and cathode activation treatment is performed after gradually increasing the stirring speed gear. During the electrodissolution process, the speed is the speed of the stirring equipment in the cathode area of the electrodissolution device, which is used to control the stirring and mixing of the liquid, and can optimize the electrodissolution reaction. The specific steps are: starting from the current speed, increase the preset stirring speed by one gear, and judge the current cathode state index and the cathode state before increasing the stirring speed. Whether the difference in the index exceeds the preset change amplitude threshold, if so, maintain the current stirring speed and perform cathode activation treatment at the same time; if not, continue to increase the preset stirring speed by one gear until the cathode state index is greater than or equal to the second threshold of the cathode state index or the preset stirring speed reaches the maximum gear. Gradually increasing the stirring speed can remove the adsorbed hydrogen bubbles, and cathode activation promotes the electroreduction reaction on the cathode to absorb electrons, making the cathode potential more negative than the equilibrium potential, that is, the smaller the negative value of the cathode potential, the more local passivation caused by bubble shielding can be solved; if the cathode state index is less than the first threshold of the anode state index, it means that metal impurities are deposited at the cathode, and a cathode state error warning is issued, and a prompt to stop the electrodissolution process is issued to the preset personnel, notifying the cathode that electrochemical polishing treatment or replacement is required.

[0039] Specifically, the specific steps of the anode state optimization treatment include: if the anode state index is greater than or equal to the second threshold value of the anode state index, then determine whether the obtained anode electrolyte temperature exceeds the maximum value of the preset temperature standard range, and if so, start the cooling water circulation until the electrolyte temperature reaches the temperature standard range; if not and the anode electrolyte temperature is lower than the minimum value of the preset temperature standard range, then enable the heating device to heat until the electrolyte temperature reaches the standard range; if not and the anode electrolyte temperature is within the preset temperature standard range, no additional treatment is performed; if the anode state index is greater than or equal to the first threshold value of the anode state index and less than the second threshold value of the anode state index, it indicates that the anode is initially passivated, and pulse electrolysis is started, and the power is periodically turned off for 1 second to prevent the continuous growth of the passivation film, interrupt the accumulation of the passivation layer, and use the power off period to The electrolyte will naturally corrode the unstable passivation film and dissolve the weak passivation layer. Monitor whether the increase in the anode state index at the next time monitoring point after the pulse electrolysis is started reaches the preset anode state index increase threshold. If the preset anode state index increase threshold is reached, the pulse electrolysis is stopped after the anode state index reaches the anode state index second threshold. If the preset anode state index increase threshold is not reached, the anode activation treatment is performed until the anode state index reaches the anode state index second threshold. Anode activation means that the electro-oxidation reaction at the anode is difficult to release electrons. In order to promote the release of electrons, the anode potential must be corrected to the equilibrium potential. The high potential forces the breakdown of the passivation film. That is, the larger the positive number of the anode potential, the stronger the positive potential of the anode activation is. The strong positive potential exceeding the saturated calomel electrode by 2V is used. The high potential drives OH - Or H2O preferentially oxidizes at the defects of the passivation film, generating oxygen bubbles to mechanically peel off the film layer. At the same time, the hydrogen fluoride present in the electrolyte will accelerate the dissolution of the oxide film. If the anode state index is less than the first threshold value of the anode state index, an anode state error warning is issued, and a prompt to stop the electrodissolution process is issued to the preset personnel, notifying them that the anode needs electrochemical polishing or replacement.

[0040] In this embodiment, since the main function of the cathode reaction is a reduction reaction, which is usually related to hydrogen production or metal deposition, and the current efficiency reflects the actual reduction reaction effect, the current efficiency has the largest weight in the cathode state parameter contribution. The main function of the anode reaction is an oxidation reaction, which is usually related to the production of oxygen or the oxidation of substances in the electrolyte. The current density directly affects the oxidation reaction of the anode and the formation of the passivation film, thereby affecting the efficiency of the entire electrodissolution process. Therefore, the current density has the largest weight in the anode state parameter contribution. The open circuit potential refers to the potential difference between the electrode and its solution in the absence of external current flow. It can be directly measured using a reference electrode such as a saturated calomel electrode. The current density is the amount of current flowing per unit area of the electrode surface. It can be obtained by measuring the current passing through the electrode with an ammeter and dividing it by the effective surface area of the electrode. The current efficiency refers to the proportion of current actually converted into the desired product in the electrochemical reaction. It can be calculated by measuring the ratio of the amount of product produced during the electrolysis process to the amount of product that should be produced theoretically. The three are interrelated. For example, the open circuit potential provides the starting point and driving force for the electrode reaction. When current is applied, changes in the open circuit potential may affect the current density; excessively high current density may lead to side reactions and reduce current efficiency. The electrode state index, obtained through comprehensive analysis, can accurately assess the overall performance of the electrode material, including reaction selectivity, reaction rate, and long-term stability. At the same time, electrode treatment based on the electrode state index can optimize reaction efficiency, reduce side reactions, and improve energy utilization based on the actual electrode conditions.

[0041] like Figure 3 As shown, the electrode position monitoring mind map provided by the embodiment of the present application. The specific steps are as follows: first, the electrode position is monitored, the deviation electrode position is calculated, and it is determined whether the deviation electrode position exceeds its threshold. If the deviation electrode position exceeds its threshold, dynamic electrolyte composition adjustment is performed to improve the impurity separation accuracy; if the deviation electrode position does not exceed its threshold, the current electrolyte composition is maintained. By monitoring and adjusting the electrode position, the purpose is to optimize the electrolyte composition and improve the effect of impurity separation.

[0042] Among them, the deviation electrode position includes the cathode deviation position and the anode deviation position; the step of dynamically adjusting the electrolyte composition according to the deviation electrode position includes: comparing the cathode deviation position threshold and the anode deviation position threshold obtained from the preset impurity separation database with the corresponding deviation electrode positions respectively, and performing dynamic electrolyte composition adjustment according to the comparison result, the dynamic electrolyte composition adjustment includes cathode electrolyte composition adjustment and anode electrolyte composition adjustment, the cathode deviation position threshold includes the cathode deviation position first threshold and the cathode deviation position second threshold, and the anode deviation position threshold includes the anode deviation position first threshold and the anode deviation position second threshold.

[0043] Specifically, the specific process of adjusting the cathode electrolyte composition is as follows: the cathode deviation position is compared with the first cathode deviation position threshold and the second cathode deviation position threshold respectively; when the cathode deviation position is greater than the second cathode deviation position threshold, a cathode position error warning and a prompt to stop the electrolysis process are issued, and the cathode device is notified that maintenance is required, such as the cathode fixture, bracket, guide rail, lifting device, etc.; when the cathode deviation position is greater than the first cathode deviation position threshold and less than or equal to the second cathode deviation position threshold, if the cathode deviation position is positive, that is, the cathode position is higher than the preset cathode position, it means that the cathode potential is too high, and H + The concentration is not in the preset H + Within the concentration range, according to the preset H + The concentration increases step by step until the cathode deviation position is less than the first threshold value of the deviation position. If the cathode deviation position is positive and H + The concentration is set at H + Within the concentration range, it is determined whether the concentrations of metal ions and organic matter in the electrolyte exceed the preset concentration thresholds. If the concentration of a metal ion exceeds the preset concentration threshold, a metal ion purification prompt is issued to the preset personnel. If the organic matter concentration exceeds the preset concentration threshold, an activated carbon adsorption prompt is issued to the preset personnel. When the cathode deviation position is greater than the first threshold of the cathode deviation position and less than or equal to the second threshold of the cathode deviation position, if the cathode deviation position is a negative deviation, that is, the cathode position is lower than the preset cathode position, it indicates that due to OH - The accumulation of the cathode potential is low, resulting in a potential drop, which affects the reaction efficiency. The electrolyte is diluted according to the difference between the second threshold value of the cathode deviation position and the cathode deviation position and the electrolyte conductivity.

[0044] The step of diluting the electrolyte according to the difference between the second cathode deviation position threshold and the cathode deviation position and the electrolyte conductivity includes: marking the difference between the second cathode deviation position threshold and the cathode deviation position as the cathode position offset warning value; comparing the cathode position offset warning value with the OH corresponding to each cathode position offset warning value preset in the impurity separation database; - The target concentration is matched to obtain OH - Target concentration; according to the current OH - concentration, OH - The target concentration and the current electrolyte volume are used to calculate the target electrolyte volume. The difference between the target electrolyte volume and the current electrolyte volume is marked as the required electrolyte volume. The specific calculation formula is: Where V2 represents the target electrolyte volume, C1 represents the current OH - concentration, C2 represents the target OH - Concentration, V1 represents the current electrolyte volume; the target conductivity is calculated based on the current electrolyte volume, target electrolyte volume and current conductivity. The specific calculation formula is: Where K2 represents the target conductivity, and K1 represents the current conductivity. The system determines whether the target conductivity is within the preset conductivity standard range. If so, dilution solution is added based on the required electrolyte volume. Otherwise, a conductivity regulator is added based on the difference between the minimum value of the conductivity standard range and the target conductivity. The amount of conductivity regulator added is the product of the difference between the minimum value of the conductivity standard range and the target conductivity and the conductivity regulator addition coefficient. The conductivity regulator addition coefficient is preset for the regulator type in the impurity separation database. If the cathode deviation position is less than or equal to the first cathode deviation position threshold, no additional processing is performed.

[0045] Specifically, the specific process of adjusting the composition of the anode electrolyte is as follows: the anode deviation position is compared with the first anode deviation position threshold and the second anode deviation position threshold respectively. When the anode deviation position is greater than the second anode deviation position threshold, an anode position error warning is issued, and a reminder to stop the electrodissolution process is issued to the preset personnel, notifying the anode device that needs maintenance, such as the anode clamp, rectifier, anode guide rail, etc.; when the anode deviation position is greater than the first anode deviation position threshold and less than or equal to the second anode deviation position threshold, if the anode deviation position is a positive deviation, it indicates that passivation has occurred on the anode surface, and the anode reverse polarization treatment is started, and a reverse potential is applied to the anode to force a reduction reaction on the anode surface, thereby reducing the anode oxide film, removing the oxide or passivation layer, restoring the activity of the anode, and improving the efficiency and stability of the electrodissolution process. until the anode deviation position is less than the first threshold value of the deviation position; when the anode deviation position is greater than the first threshold value of the anode deviation position and less than or equal to the second threshold value of the anode deviation position, if the anode deviation position is a negative deviation, then there is a reduction reaction of impurities on the anode surface, and the current density is reduced step by step to reduce the occurrence of excessive reduction reaction and avoid the reduction of impurity metals. If the current density reaches the preset minimum current density but the anode deviation position is still greater than the first threshold value of the anode deviation position, it is determined whether the concentrations of metal ions and organic matter in the electrolyte exceed their preset concentration thresholds. If the concentration of a metal ion exceeds its concentration threshold, a prompt for purifying the metal ion is issued. If the concentration of the organic matter exceeds its concentration threshold, an organic matter removal prompt is issued. When the anode deviation position is less than or equal to the first threshold value of the anode deviation position, no additional processing is performed.

[0046] In this embodiment, an optical displacement sensor can be used to monitor the electrode surface position in real time. The absolute value of the deviation between the electrode surface position and the preset electrode position is the deviation electrode position. During the electrodissolution process, electrode position deviation changes the electric field distribution between the electrode and the electrolyte, resulting in local current density changes and potential fluctuations that affect the electrodissolution effect. The present invention effectively optimizes the stability and efficiency of the electrodissolution process by monitoring the deviation position of the cathode and anode in real time and dynamically adjusting the electrolyte composition based on a preset threshold value, ensuring the separation of impurity elements.

[0047] like Figure 3 The figure below shows a mind map for electrochemical reaction monitoring provided by an embodiment of the present application. The specific steps are as follows: First, perform electrochemical reaction monitoring, obtain electrochemical reaction parameters, and then determine whether the pH gradient is unbalanced. If the pH gradient is unbalanced, perform dynamic optimization of the electrode potential to stabilize the potential distribution. If the pH gradient is not unbalanced, maintain the current potential. By monitoring and adjusting the pH gradient during the electrochemical reaction, the stability of the potential distribution is ensured.

[0048] The step of dynamically optimizing the electrode potential according to the electrochemical reaction parameters obtained during the electrodissolution process includes: B1, dynamically quantifying the influence of the electrode and the electrolyte pH gradient on the electrode potential according to the electrochemical reaction parameters to obtain a potential influence index, wherein the electrochemical reaction parameters include a cathode pH change value at each time monitoring point, an anode pH change value at each time monitoring point, a cathode pH deviation value at each time monitoring point, and an anode pH deviation value at each time monitoring point, and the potential influence index represents quantitative data on the degree of influence of the electrode pH change value and the electrode pH deviation value on the stability of the power grid;

[0049] Among them, the step of dynamically quantifying the influence of the electrode and electrolyte pH gradient on the electrode potential according to the electrochemical reaction parameters to obtain the potential influence index includes: obtaining electrochemical reaction parameter reference data from a preset impurity separation database, specifically including: critical cathode pH change value, critical anode pH change value, critical cathode pH deviation value and critical anode pH deviation value; performing a proportion approximation operation on the electrochemical reaction parameters of each time monitoring point and the electrochemical reaction parameter reference data, weighting the proportion approximation operation results according to the electrochemical reaction parameter contribution, and then coupling and averaging the weighted processing to obtain the potential influence index, where the electrochemical reaction parameter contribution includes the cathode pH change value contribution, the anode pH change value contribution, the cathode pH deviation value contribution and the anode pH deviation value contribution.

[0050] The potential influence index is obtained as follows:

[0051]

[0052] Where PF represents the potential influence index, α4 represents the contribution of cathode pH change, α5 represents the contribution of anode pH change, α6 represents the contribution of cathode pH deviation, α7 represents the contribution of anode pH deviation, CC represents the contribution of cathode pH deviation, 1i represents the cathode pH change value at the i-th time monitoring point, CC0 represents the critical cathode pH change value, AC 1i represents the anode pH change value at the i-th time monitoring point, AC0 represents the critical anode pH change value, CD 1i represents the cathode pH deviation value at the i-th time monitoring point, CD0 represents the critical cathode pH deviation value, AD 1i represents the anode pH deviation value at the i-th time monitoring point, AD0 represents the critical anode pH deviation value, where i is the number of each time monitoring point, i = 1, 2, 3, ..., N, and N is the total number of time monitoring points.

[0053] α4, α5, α6 and α7 are the contributions corresponding to the cathode pH change value, anode pH change value, cathode pH deviation value and anode pH deviation value preset in the impurity separation database, respectively. These contributions are numerical indicators that measure the influence of the above-mentioned electrochemical reaction parameters on the potential influence index. Specifically, there is a mapping relationship table for each cathode pH change value, anode pH change value, cathode pH deviation value and anode pH deviation value, which records each possible electrochemical reaction parameter value and its corresponding contribution. These mapping relationships can be one-to-one or many-to-one. For example, in actual applications, when it is necessary to evaluate the potential influence index, the measured cathode pH change value, anode pH change value, cathode pH deviation value and anode pH deviation value can be input into their respective corresponding mapping relationship tables, and the contribution corresponding to these values can be quickly found, where the contribution value range is between 0 and 1.

[0054] B2, obtain the first potential influence threshold and the second potential influence threshold from the preset impurity separation database; compare the potential influence index with the first potential influence threshold and the second potential influence threshold respectively; when the potential influence index is less than or equal to the first potential influence threshold, if the cathode pH change value and the anode pH change value do not exceed the preset pH change threshold, no additional processing is performed; when the potential influence index is less than or equal to the first potential influence threshold, if the cathode pH change value or the anode pH change value exceeds the pH change threshold, an electrode pH change abnormality prompt is sent to notify the preset personnel to reduce the current density until the cathode pH change value and the anode pH change value do not exceed the pH change threshold; when the potential influence index is greater than the first potential influence threshold and less than or equal to the second potential influence threshold, if the cathode pH deviation value exceeds the preset pH deviation threshold, then detect whether the EDTA (ethylenediaminetetraacetic acid) complex metal ion concentration in the electrolyte reaches the preset EDT A concentration threshold, if not, an EDTA complex metal ion concentration abnormality prompt is sent, and the preset personnel is notified to add EDTA complex metal ions in the cathode area until the EDTA complex metal ion concentration reaches the EDTA concentration threshold. The EDTA complex metal ions combine with the impurity metal ions to avoid the deposition of impurity metal ion hydroxides on the cathode surface, thereby reducing the polarization of the cathode. If so, a reverse current is applied to the cathode area, that is, anode polarization, to force an oxidation reaction on the cathode surface to remove adsorbed organic matter or loose sediment layers until the potential influence index is less than the first potential influence threshold; when the potential influence index is greater than the first potential influence threshold and less than or equal to the second potential influence threshold, if the anode pH deviation value exceeds the preset pH deviation threshold, then check whether the HF (hydrogen fluoride) concentration in the electrolyte reaches the preset HF concentration threshold. If not, an HF concentration abnormality prompt is sent, and the preset personnel are notified to add HF concentration in the anode area. HF can react with Fe dissolved at the anode. 3+The metal ions such as HF form a stable complex to prevent them from hydrolyzing to generate H+, thereby reducing H+ accumulation. At the same time, HF can directly dissolve the formed passivation layer, reduce the polarization of the anode, optimize the oxidation reaction, and the HF concentration reaches the HF concentration threshold. If it is, a high-frequency microsecond pulse is applied to destroy the continuity of the passivation layer and promote local activation until the potential influence index is less than the first potential influence threshold; when the potential influence index is greater than the first potential influence threshold and less than or equal to the second potential influence threshold, if the cathode pH deviation value and the anode pH deviation value do not exceed the preset pH deviation threshold, the low-frequency pulse is turned on until the potential influence index is less than the first potential influence threshold, and the periodic interruption is used. The electrochemical state of the electrode-electrolyte interface spontaneously tends to the process of thermodynamic equilibrium due to the loss of external electric field drive, reducing the cumulative effect of the reaction, thereby stabilizing the potential influence index. If the cathode pH deviation value and the anode pH deviation value both exceed the preset pH deviation threshold, an abnormal electrode pH change prompt is sent to notify the preset personnel to start a short-term polarity reversal to dissolve the deposits on the electrode surface until the cathode pH deviation value and the anode pH deviation value both do not exceed the preset pH deviation threshold; when the potential influence index is greater than the second potential influence threshold, a potential error warning is issued to notify the preset personnel to stop the electrodissolution process and inject inert buffer to dilute the pH concentration or replace the electrolyte.

[0055] In this embodiment, a micro pH electrode can be used to monitor the pH value around the electrode in real time. The cathode pH change value refers to the change in the pH of the cathode region from the previous monitoring point in time during the electrochemical reaction; the anode pH change value refers to the change in the pH of the anode region from the previous monitoring point in time; because the larger the electrode pH deviation value, the actual equilibrium potential of the electrodissolution reaction will shift. For the cathode, the equilibrium potential shifts negatively, requiring a higher overpotential to drive the reaction. For the anode, the equilibrium potential shifts positively, which may cause metal dissolution or passivation. The cathode pH deviation value refers to the degree of deviation of the cathode pH value at each time point relative to the electrolyte pH value; the anode pH deviation value refers to the degree of deviation of the anode pH value at each time point relative to the electrolyte pH value. The four are interrelated. For example, the pH changes at the cathode and anode are interrelated. The cathode region usually generates OH - As the pH rises, the anode region generates H + If the pH value changes significantly and the deviation is large, it indicates that the reaction process is unstable and may lead to reduced electrode performance. The potential influence index obtained by comprehensive analysis reflects the stability, efficiency and performance of the electrode material during the reaction process through the trend and deviation of the pH value. By controlling the pH change, side reactions can be reduced and the efficiency of the target reaction can be improved.

[0056] In summary, the embodiments of the present application eliminate the influence of electrode abnormalities on reaction efficiency by performing electrode optimization processing based on real-time electrode state parameters; secondly, dynamic electrolyte composition adjustment is implemented by monitoring electrode position deviation to ensure the accuracy of impurity separation; finally, the electrode potential is dynamically optimized according to the electrochemical reaction parameters to maintain the stability of the pH gradient, thereby significantly improving the stability and efficiency of high-purity zirconium electrodissolution separation.

[0057] It will be understood by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0058] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0059] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0060] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 The steps for the function specified in one or more boxes.

[0061] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0062] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A method for the electrolysis separation and determination of impurity elements in high-purity zirconium, characterized in that: The following steps are involved: performing electrode state optimization processing on the electrode according to the electrode state parameters obtained during the electrodissolution process, wherein the electrode state optimization processing is used to reduce the influence of abnormal electrode state on the electrodissolution reaction efficiency; The deviation electrode position is obtained based on the real-time monitored electrode position and the preset electrode position, and the dynamic electrolyte composition adjustment is performed according to the deviation electrode position. The dynamic electrolyte composition adjustment is used to reduce the impact of the abnormal electrode position on the impurity separation accuracy during the electrodissolution separation process; The electrode potential is dynamically optimized based on the electrochemical reaction parameters obtained during the electrodissolution process. The dynamic optimization process is used to reduce the impact of the dynamic pH gradient imbalance of the electrolyte on the potential stability during the electrodissolution process, thereby improving the stability and efficiency of the electrodissolution process.

2. The method for electrodissolution separation and determination of impurity elements in high-purity zirconium according to claim 1, characterized in that: The step of performing electrode state optimization processing on the electrode according to the electrode state parameters obtained during the electrodissolution process includes: Quantifying the influence of the electrode state on the electrodissolution reaction efficiency according to the electrode state parameters to obtain an electrode state index, wherein the electrode state parameters include cathode state parameters and anode state parameters, the cathode state parameters include cathode open circuit potential, cathode current density and cathode current efficiency, the anode state parameters include anode open circuit potential, anode current density and anode current efficiency, and the electrode state index represents quantitative data on the degree of influence of the open circuit potential, current density and current efficiency on the electrodissolution reaction efficiency, specifically including a cathode state index and an anode state index; Comparing the cathode state index threshold and the anode state index threshold obtained from a preset impurity separation database with the corresponding electrode state index respectively, and performing electrode state optimization processing according to the comparison results, wherein the electrode state optimization processing includes cathode state optimization processing and anode state optimization processing, the cathode state index threshold includes a cathode state index first threshold and a cathode state index second threshold, and the anode state index threshold includes an anode state index first threshold and anode state index second threshold; The specific process of the cathode state optimization process is as follows: Comparing the cathode state index with the first cathode state index threshold and the second cathode state index threshold respectively, and if the cathode state index is greater than or equal to the second cathode state index threshold, no additional operation is performed; If the cathode state index is greater than or equal to the first cathode state index threshold and less than the second cathode state index threshold, cathode activation treatment is performed after gradually increasing the stirring speed gear; If the cathode state index is less than the first threshold value of the anode state index, a cathode state error warning is issued, and a prompt to stop the electrodissolution process is issued to the preset personnel, notifying them that the cathode needs electrochemical polishing or replacement.

3. The method for electrodissolution separation and determination of impurity elements in high-purity zirconium according to claim 2, characterized in that: The step of quantifying the effect of the electrode state on the electrodissolution reaction efficiency according to the electrode state parameter to obtain the electrode state index comprises: Obtain electrode state parameter reference data from a preset impurity separation database, wherein the electrode state parameter reference data includes cathode state parameter reference data and anode state parameter reference data, wherein the cathode state parameter reference data includes: cathode critical open circuit potential, cathode reference current density, cathode allowable deviation current density, and cathode critical current efficiency; and the anode state parameter reference data includes: anode critical open circuit potential, anode reference current density, anode allowable deviation current density, and anode critical current efficiency; The absolute value of cathode open circuit potential and cathode critical open circuit potential are calculated to obtain the influencing parameter of cathode open circuit potential; The anode open circuit potential and the anode critical open circuit potential are calculated to obtain the influencing parameters of the anode open circuit potential; Perform relative deviation compliance calculation on cathode allowable deviation current density, cathode current density and cathode reference current density to obtain cathode current density influencing parameters; Perform relative deviation compliance calculation on the anode allowable deviation current density, the anode current density and the anode reference current density to obtain the anode current density influencing parameter; The cathode current efficiency and the cathode critical current efficiency are calculated to obtain the influencing parameters of the cathode current efficiency; The anode current efficiency and the anode critical current efficiency are calculated to obtain the influencing parameters of the anode current efficiency; The cathode state parameter contribution is used to weight the cathode open circuit potential influencing parameters, the cathode current density influencing parameters and the cathode current efficiency influencing parameters, and then the cathode weighted processing results are coupled to obtain the cathode state index, wherein the cathode state parameter contribution includes: cathode open circuit potential contribution, cathode current density contribution and cathode current efficiency contribution; The anode state parameter contribution is used to weight the anode open circuit potential influencing parameters, the anode current density influencing parameters and the anode current efficiency influencing parameters respectively, and then the anode weighted processing results are coupled to obtain the anode state index. The anode state parameter contribution includes: anode open circuit potential contribution, anode current density contribution and anode current efficiency contribution.

4. The method for electrodissolution separation and determination of impurity elements in high-purity zirconium according to claim 2, characterized in that: The specific steps of the anode state optimization process include: If the anode state index is greater than or equal to the second anode state index threshold, determining whether the obtained anode electrolyte temperature exceeds a preset maximum value of the temperature standard range, and if so, starting cooling water circulation until the electrolyte temperature reaches the temperature standard range; If not and the anode electrolyte temperature is lower than the preset minimum value of the temperature standard range, the heating device is activated to heat the electrolyte until the electrolyte temperature reaches the standard range; If no and the anolyte temperature is within the preset temperature standard range, no additional treatment is performed; If the anode state index is greater than or equal to the first anode state index threshold and less than the second anode state index threshold, pulse electrolysis is started, and at the same time, whether the increase in the anode state index at the next time monitoring point after the start of pulse electrolysis reaches a preset anode state index increase threshold is monitored; if the preset anode state index increase threshold is reached, pulse electrolysis is stopped after the anode state index reaches the second anode state index threshold; if the preset anode state index increase threshold is not reached, anode activation treatment is performed until the anode state index reaches the second anode state index threshold; If the anode state index is less than the first anode state index threshold, an anode state error warning is issued and a prompt to stop the electrolysis process is issued to the preset personnel.

5. The method for electrodissolution separation and determination of impurity elements in high-purity zirconium according to claim 1, characterized in that: The deviation electrode position includes a cathode deviation position and an anode deviation position; The step of dynamically adjusting the electrolyte composition according to the deviation electrode position includes: Comparing the cathode deviation position threshold and the anode deviation position threshold obtained from a preset impurity separation database with the corresponding deviation electrode positions, respectively, and performing dynamic electrolyte composition adjustment according to the comparison results, wherein the dynamic electrolyte composition adjustment includes cathode electrolyte composition adjustment and anode electrolyte composition adjustment, the cathode deviation position threshold includes a cathode deviation position first threshold and a cathode deviation position second threshold, and the anode deviation position threshold includes an anode deviation position first threshold and anode deviation position second threshold; The specific process of adjusting the cathode electrolyte composition is as follows: The cathode deviation position is compared with a first cathode deviation position threshold and a second cathode deviation position threshold respectively. When the cathode deviation position is greater than the second cathode deviation position threshold, a cathode position error warning is issued and a prompt to stop the electrolysis process is issued; When the cathode deviation position is greater than the first cathode deviation position threshold and less than or equal to the second cathode deviation position threshold, if the cathode deviation position is positive and H + The concentration is not in the preset H + Within the concentration range, according to the preset H + The concentration increases step by step until the cathode deviation position is less than the first threshold value of the deviation position. If the cathode deviation position is positive and H + The concentration is set at H + If the concentration of a metal ion exceeds the preset concentration threshold, a reminder to purify the metal ions will be issued to the preset personnel; if the concentration of organic matter exceeds the preset concentration threshold, an activated carbon adsorption reminder will be issued to the preset personnel; When the cathode deviation position is greater than a first cathode deviation position threshold and less than or equal to a second cathode deviation position threshold, if the cathode deviation position is a negative deviation, diluting the electrolyte according to a difference between the second cathode deviation position threshold and the cathode deviation position and the electrolyte conductivity; When the cathode deviation position is less than or equal to the first cathode deviation position threshold, no additional processing is performed.

6. The method for electrodissolution separation and determination of impurity elements in high-purity zirconium according to claim 5, characterized in that: The step of diluting the electrolyte according to the difference between the second cathode deviation position threshold and the cathode deviation position and the electrolyte conductivity comprises: Marking the difference between the cathode deviation position second threshold and the cathode deviation position as the cathode position offset warning value; The cathode position offset warning value is compared with the OH corresponding to each cathode position offset warning value preset in the impurity separation database. - The target concentration is matched to obtain OH - Target concentration; According to the current OH - concentration, OH - The target concentration and the current electrolyte volume are used to calculate the target electrolyte volume, and the difference between the target electrolyte volume and the current electrolyte volume is marked as the required electrolyte volume; Calculating the target conductivity according to the current electrolyte volume, the target electrolyte volume and the current conductivity; Determine whether the target conductivity is within a preset conductivity standard range. If so, add a dilution solution according to the required electrolyte volume. Otherwise, add a conductivity regulator according to the difference between the minimum value of the conductivity standard range and the target conductivity. The amount of the conductivity regulator added is the product of the difference between the minimum value of the conductivity standard range and the target conductivity and the conductivity regulator addition coefficient.

7. The method for electrodissolution separation and determination of impurity elements in high-purity zirconium according to claim 5, characterized in that: The specific process of adjusting the composition of the anolyte is as follows: The anode deviation position is compared with a first anode deviation position threshold and a second anode deviation position threshold respectively. When the anode deviation position is greater than the second anode deviation position threshold, an anode position error warning is issued and a reminder to the preset personnel to stop the electrolysis process is issued; When the anode deviation position is greater than the first anode deviation position threshold and less than or equal to the second anode deviation position threshold, if the anode deviation position is a positive deviation, the anode reverse polarization process is started until the anode deviation position is less than the first deviation position threshold; When the anode deviation position is greater than the first anode deviation position threshold and less than or equal to the second anode deviation position threshold, if the anode deviation position is a negative deviation, the current density is gradually reduced. If the current density reaches a preset minimum current density but the anode deviation position is still greater than the first anode deviation position threshold, it is determined whether the concentrations of metal ions and organic matter in the electrolyte exceed their preset concentration thresholds. If the concentration of a metal ion exceeds its concentration threshold, a prompt to purify the metal ion is issued. If the concentration of the organic matter exceeds its concentration threshold, an organic matter removal prompt is issued. When the anode deviation position is less than or equal to the first anode deviation position threshold, no additional processing is performed.

8. The method for electrodissolution separation and determination of impurity elements in high-purity zirconium according to claim 1, characterized in that: The step of dynamically optimizing the electrode potential according to the electrochemical reaction parameters obtained during the electrodissolution process includes: Dynamically quantify the effect of the electrode and electrolyte pH gradient on the electrode potential according to electrochemical reaction parameters, and obtain a potential influence index, wherein the electrochemical reaction parameters include the cathode pH change value at each time monitoring point, the anode pH change value at each time monitoring point, the cathode pH deviation value at each time monitoring point, and the anode pH deviation value at each time monitoring point. The potential influence index represents quantitative data on the degree of influence of the electrode pH change value and the electrode pH deviation value on the stability of the power grid; Obtaining a first potential impact threshold and a second potential impact threshold from a preset impurity separation database; The potential influence index is compared with the first potential influence threshold and the second potential influence threshold respectively. When the potential influence index is less than or equal to the first potential influence threshold, and if the cathode pH change value and the anode pH change value do not exceed the preset pH change threshold, no additional processing is performed; When the potential influence index is less than or equal to the first potential influence threshold, if the cathode pH change value or the anode pH change value exceeds the pH change threshold, an electrode pH change abnormality prompt is sent; When the potential influence index is greater than the first potential influence threshold and less than or equal to the second potential influence threshold, if the cathode pH deviation value exceeds the preset pH deviation threshold, the EDTA complex metal ion concentration in the electrolyte is detected to see if it reaches the preset standard concentration range. If not, an EDTA complex metal ion concentration abnormality prompt is sent. If so, a reverse current is applied to the cathode region until the potential influence index is less than the first potential influence threshold; When the potential influence index is greater than the first potential influence threshold and less than or equal to the second potential influence threshold, if the anode pH deviation value exceeds the preset pH deviation threshold, check whether the HF concentration in the electrolyte reaches the preset standard concentration range. If not, send an HF concentration abnormality prompt. If so, apply high-frequency microsecond pulses until the potential influence index is less than the first potential influence threshold; When the potential influence index is greater than the first potential influence threshold and less than or equal to the second potential influence threshold, if both the cathode pH deviation value and the anode pH deviation value do not exceed the preset pH deviation threshold, the low-frequency pulse is turned on until the potential influence index is less than or equal to the first potential influence threshold. If both the cathode pH deviation value and the anode pH deviation value exceed the preset pH deviation threshold, an abnormal electrode pH change prompt is sent; When the potential influence index is greater than the second potential influence threshold, a potential error warning is issued to notify the preset personnel to stop the electrolysis process.

9. The method for electrodissolution separation and determination of impurity elements in high-purity zirconium according to claim 8, characterized in that: The step of dynamically quantifying the effect of the electrode and the electrolyte pH gradient on the electrode potential according to the electrochemical reaction parameters to obtain the potential influence index comprises: Obtaining electrochemical reaction parameter reference data from a preset impurity separation database, specifically including: critical cathode pH change value, critical anode pH change value, critical cathode pH deviation value, and critical anode pH deviation value; The electrochemical reaction parameters at each time monitoring point are respectively subjected to a proportion approximation calculation with the electrochemical reaction parameter reference data, and the proportion approximation calculation results are weighted according to the electrochemical reaction parameter contribution. The weighted processing is then coupled and averaged to obtain the potential influence index. The electrochemical reaction parameter contribution includes the cathode pH change value contribution, the anode pH change value contribution, the cathode pH deviation value contribution, and the anode pH deviation value contribution.

10. An electrodissolution separation and determination system for impurity elements in high-purity zirconium, characterized in that: It includes electrode state processing module, electrolyte composition adjustment module, potential optimization processing module and impurity separation database; The electrode state processing module is used to perform electrode state optimization processing on the electrode according to the electrode state parameters obtained during the electrolysis process, and the electrode state optimization processing is used to reduce the impact of abnormal electrode state on the electrolysis reaction efficiency; The electrolyte composition adjustment module is used to obtain the deviation electrode position based on the real-time monitored electrode position and the preset electrode position, and to perform dynamic electrolyte composition adjustment based on the deviation electrode position. The dynamic electrolyte composition adjustment is used to reduce the impact of abnormal electrode position on the impurity separation accuracy during electrodissolution separation; The potential optimization processing module is used to dynamically optimize the electrode potential based on the electrochemical reaction parameters obtained during the electrodissolution process. The dynamic optimization processing is used to reduce the impact of the dynamic pH gradient imbalance of the electrolyte on the potential stability during the electrodissolution process, thereby improving the stability and efficiency of the electrodissolution process.

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