131 results about "Dissolution reaction" patented technology

The invention discloses an electrolyte for an aqueous manganese-based battery. The electrolyte comprises an electrolyte, and the electrolyte comprises a manganese salt; the weak acid is used for regulating and controlling proton dynamic release of the positive electrode / electrolyte interface to realize on-demand supply of protons of the positive electrode / electrolyte interface; and a solvent, wherein the solvent is deionized water; the PH range of the electrolyte is 2.0-3.5, and the electrolyte can realize on-demand supply of protons of a positive electrode / electrolyte interface in the charging and discharging process of the aqueous manganese-based battery, and promotes efficient and reversible deposition and dissolution reaction of a positive active substance manganese dioxide. According to the invention, the proton on-demand supply electrolyte is constructed by utilizing dynamic dissociation equilibrium of weak acid, so that on-demand supply of protons in the MnO2 dissolving process is realized, complete electrochemical dissolution of MnO2 is promoted, and generation of'dead manganese 'is inhibited, so that the cycling stability of the battery and the utilization efficiency of active substances are remarkably improved. The invention also discloses an aqueous manganese-based battery for realizing on-demand supply of protons and application of the aqueous manganese-based battery in the field of secondary energy storage.

The invention discloses an efficient preparation process of cryolite, and relates to the field of cryolite preparation. The process comprises the following steps: S1, taking carbon residues ground by a ball mill, and putting the carbon residues into a dissolution reaction kettle filled with alkali liquor for reaction; s2, after the reaction in the reaction kettle is finished, filter pressing is performed through a plate-and-frame filter press, and coarse carbon powder and filtrate are obtained; s3, pumping the filtrate into a carbon reaction kettle, and introducing carbon dioxide for reaction; s4, after the reaction in the carbon component reaction kettle is finished, carrying out filter pressing through a plate-and-frame filter press; and S5, drying the solid material obtained by filter pressing in a calcining furnace to obtain cryolite. In the process, the industrial waste carbon residue is used as a raw material, and participates in a series of reactions to prepare the cryolite after being subjected to ball-milling refining treatment, so that resource recycling of the waste is realized. The method not only effectively reduces the pollution of the carbon residue to the environment, reduces the accumulation amount of solid wastes, but also reduces the exploitation of natural cryolite minerals, and protects non-renewable resources.

The invention provides a method for preparing a nearly 3.5-valent vanadium electrolyte by reducing ammonium metavanadate with coke oven gas, which comprises the following steps: (1) reducing and calcining ammonium metavanadate in coke oven gas to obtain a reduced product; (2) carrying out replacement deamination on the reduced product in the step (1) to obtain a nearly 3.5-valent vanadium oxide, wherein the nearly 3.5-valent vanadium oxide contains V4O7; and (3) a mixed sulfuric acid solution and the approximately 3.5-valent vanadium oxide are subjected to a dissolution reaction, and the approximately 3.5-valent vanadium electrolyte is obtained. The process method disclosed by the invention is simple and easy to implement, the approximately 3.5 valence vanadyl sulfate electrolyte product with high vanadium concentration and low ammonia content can be obtained by taking the ammonium metavanadate and the coke oven gas as raw materials, and the application prospect is wide.

The invention belongs to the field of light modulators, and provides an electrochromic device based on reversible double electrodeposition and application of the electrochromic device. The electrochromic device sequentially comprises a first transparent substrate, a first conductive layer, an electrolyte layer, a second conductive layer and a second transparent substrate; the electrolyte layer comprises a solvent and an electrolyte additive, and the electrolyte additive comprises a manganese salt, a zinc salt and a redox medium. And the charge change in the manganese ion deposition / dissolution process is compensated through the reversible deposition / dissolution reaction of zinc ions in the electrolyte. In the coloring process, manganese ions are subjected to oxidation reaction on the surface of the first transparent conductive substrate to form manganese dioxide sediment; meanwhile, the zinc ions are subjected to reduction reaction on the surface of the second transparent conductive substrate to form metal zinc. And in the fading process, the sediment is dissolved, so that the device is recovered to the initial transparent state. In addition, dissolution of manganese dioxide and metal zinc can be accelerated by adding the oxidation-reduction medium, and the reaction kinetics of the device is improved.

The embodiment of the application provides a chemical equilibrium simulation method for soil salt ions, comprising: acquiring multiple ion data of parameters associated with a chemical equilibrium simulation process of salt ions and constructing a chemical reaction parameter database; and calculating ion activity and constructing a chemical solving model, wherein the chemical solving model comprises a precipitation-dissolution reaction simulation model and a complexation reaction-cation exchange simulation model, one chemical solving is completed by sequentially solving the precipitation-dissolution reaction simulation model and the complexation reaction-cation exchange simulation model; setting initial conditions and termination conditions of iterative operation of the chemical solving model, inputting parameter data into solving, taking a concentration difference of multiple ions after adjacent two chemical solvings as an external loop control standard epsilon, judging whether to enter next chemical solving iteration or outputting a simulation result to obtain a precipitated chemical component content, a complexed chemical component content and an exchanged chemical component content of the salt ions in the soil.

The utility model relates to a kind of anti-rotation device of dissolvable bridge plug, it is related to oilfield downhole tool technical field, upper cap lower part thread sealing connection central tube, central tube lower part thread connection leading shoe, central tube is successively covered with advancing sleeve, rubber cylinder, vertebral body and slip below upper cap, slip falls on leading shoe, vertebral body is connected with slip by dovetail groove guide rail, advancing sleeve, vertebral body and central tube are connected by spline.This utility model has the beneficial effect that when the liquid in wellbore is rich in crude oil and does not meet the condition of dissolution reaction, the bridge plug is drilled by drilling tool, since central tube and advancing sleeve, vertebral body are connected by spline;vertebral body is connected with slip by dovetail groove guide rail, central tube and leading shoe are connected by thread, before slip anchoring is not removed, parts will not rotate each other, drilling tool will effectively drill each part of bridge plug, improve drilling efficiency;Drilling is complete, residual volume is small, can fall into well bottom and dissolve.

The invention provides a recovery treatment method of fluoride slag in uranium hexafluoride preparation, belongs to the technical field of nuclear industry waste slag treatment, and solves the technical problems that a product obtained by an existing fluoride slag treatment method is high in metal impurity content and low in uranium recovery rate, secondary fluoride slag is easily generated, and the product cannot be returned to a uranium purification and conversion production line for reuse. The method comprises the following steps: at the temperature of 400-600 DEG C, contacting the fluorinated slag with excessive water vapor to carry out high-temperature hydrolysis reaction, so that UF4 and uranium intermediate fluoride in the fluorinated slag generate uranium oxides U3O8 and UO3 with the fluorine ion content of less than 1mg / g, and filtering to obtain uranium oxides; mixing uranium oxide with a nitric acid solution, dissolving and reacting to obtain a uranyl nitrate solution; the pH of the uranyl nitrate solution is adjusted to 3-4, hydrogen peroxide is added for a precipitation reaction, solid-liquid separation is conducted, and uranium peroxide solid precipitates are obtained. The method is high in uranium recovery rate, low in product impurity content and capable of returning to a uranium purification and conversion production line for reuse.

This invention belongs to the field of hydraulic structure analysis technology, specifically disclosing a gravity dam coupling analysis method, system, electronic equipment, and storage medium, including: models describing water flow in concrete, the relationship between water pressure and stress, the dissolution reaction process, and the coupling of ion diffusion with water flow. By acquiring influencing variables, parameters of each model are correlated, and a solubility function considering performance parameters is established and dynamically updated. The solubility function is iteratively trained using experimental data to construct a finite element model, and simulations are performed based on the trained function. Early warnings are generated based on the simulation results to predict the concrete deterioration process and optimize maintenance decisions. It has the following advantages: by coupling multiple models such as water flow, chemical dissolution, and hydraulic fracturing, the long-term deterioration process of concrete under the action of water flow and dissolution is accurately simulated. The introduction of a solubility function and dynamic updating of material parameters, considering time-varying deterioration effects, comprehensively improves the accuracy of deterioration prediction and simulation results.

The invention discloses an ion channel protein near-atomic scale confinement dissolution electrochemical machining method based on a bionic confinement interface. The method is characterized in that a bionic phospholipid bilayer mask is spread on a workpiece anode to shield a non-processing area, ion channel protein is embedded into the bionic phospholipid bilayer mask to serve as an electrolyte channel, and when the bionic phospholipid bilayer mask is powered on, the anode dissolution reaction is strictly limited in the ion channel protein channel. Millivolt-level picosecond-nanosecond pulse voltage or current is adopted on the time scale so that anode metal atoms can be removed one by one, electrolytic products are discharged in the modes of electrolyte adjustment, microcosmic acting force, micro vibration and the like so as to ensure sustainable generation of electrochemical reaction, and therefore near-atomic-scale electrolytic machining is achieved. The electrochemical machining technology and the biological field are fused in an interdisciplinary mode, the near-atomic-scale electrochemical dissolution reaction space is constructed, the capacity of electrochemical machining for removing materials in an ion form is approached, and near-atomic-scale electrochemical machining is achieved.

The application provides a method for preparing 3.5-valence vanadyl sulfate electrolyte by reducing ammonium polyvanadate with a gas, which comprises the following steps: (1) ammonium polyvanadate is reduced and calcined by a reducing gas to obtain vanadium oxide; the vanadium oxide contains V4O7; the reducing gas comprises a mixed gas of NH3, CO and H2; (2) a mixed sulfuric acid solution and the vanadium oxide are subjected to a dissolution reaction, and vanadium adjustment is performed to obtain 3.5-valence vanadyl sulfate electrolyte. The process is simple and easy to implement, 3.5-valence vanadyl sulfate electrolyte product can be obtained from ammonium polyvanadate as raw material, the vanadium concentration is high, and the application prospect is wide.

The application relates to a preparation process of synthesizing hybrid zinc aluminate by using solid waste sodium tetrachloroaluminate, and belongs to the technical field of chemical dangerous waste treatment, and comprises the following synthesis steps: S1, zinc compounds are added in water, and the zinc compounds are completely dissolved or uniformly dispersed; S2, solid waste sodium tetrachloroaluminate is added, and the solid waste sodium tetrachloroaluminate is completely dissolved and reacted by continuing to stir; S3, an oxidizing agent is added, and the reaction is continued by keeping warm and stirring, then filtration is carried out, and the phosphorus content in the filtrate is detected; S4, after the phosphorus content is qualified, sodium hydroxide solution is added into the filtrate, the pH value is controlled, and white zinc aluminate precursor precipitate is generated; S5, the white zinc aluminate precursor precipitate is transferred into a high-pressure reaction kettle to carry out hydrothermal reaction, and hybrid zinc aluminate liquid is generated; S6, negative pressure suction filtration is carried out, the obtained filter solid is washed by using deionized water, the filter solid is subjected to spray drying, and solid hybrid zinc aluminate is obtained. The application fully utilizes aluminum resources in the solid waste sodium tetrachloroaluminate, and total phosphorus impurities in the solid waste sodium tetrachloroaluminate are also utilized to generate effective components, so that waste is turned into treasure.

The application provides a metal material soil corrosion rate prediction method and model, and belongs to the technical field of metal life evaluation and environmental geotechnical disaster prevention and reduction; a mathematical model determined based on the basic reaction process of an electrode system response is used for predicting the corrosion rate of a metal in a soil environment; a dissolution reaction current I 1 , a passivation reaction current I 2 , and a corrosion product layer coverage θ are calculated to represent the strength of metal corrosion; the method explicitly includes the key characteristics of the surface electrochemical reaction of the metal under the action of different soil environments, and makes up for the deficiency of existing data analysis; the application can more reliably predict the charge transfer mechanism between the metal surface and the surrounding soil, and solves the uncertainty of traditional analysis methods in interpreting impedance data.

The invention discloses a method and device for preparing a silver compound from metallic silver. The method mainly comprises the following steps that (1) at least one electrolytic bath is adopted, the metallic silver is taken as an anode, an insoluble conductor is taken as a cathode, the anode is connected with an anode of an electrolytic power source, and the cathode is connected with a cathode of the electrolytic power source; (2) putting an alkaline electrolyte into an electrolytic bath as an electrolyte in contact with the anode; and (3) starting an electrolysis power supply to carry out electrolysis operation, carrying out metal silver dissolution reaction on the anode, and reacting silver ions generated by dissolution in the alkaline electrolyte to generate a solid silver compound and / or a soluble silver complex. According to the invention, the three problems of safety, pollution and cost in the existing production technology for preparing the silver compound are solved.

The utility model discloses a dissolution reaction kettle for preparing tebuconazole. The dissolution reaction kettle comprises a reaction kettle main body and a kettle cover, wherein the reaction kettle main body is used for carrying out dissolution reaction on tebuconazole preparation raw materials; the kettle cover is movably mounted at the top of the reaction kettle main body through mounting bolts; a motor is fixedly mounted in the center of the top of the kettle cover through a mounting frame; the output end of the motor rotationally penetrates through the inner side of the mounting frame and is fixedly connected with a transmission shaft. According to the reaction kettle, raw materials can be conveniently subjected to rotary stirring, vibration stirring and spiral stirring from bottom to top, so that the raw materials between different parts can be fully stirred, dissolved and reacted; the raw materials can be smashed and scattered, the reaction rate of raw material dissolution can be further increased, the problems that an existing reaction kettle is prone to uneven stirring, and the raw materials are clustered and cannot be fully dissolved and smashed easily are solved, so that the dissolution reaction efficiency is further improved, the product quality is greatly guaranteed, and the reaction kettle is suitable for being popularized and used.

The invention relates to the technical field of solar cells, in particular to a high-purity lead iodide synthesis method which comprises the following steps: S1, preparing a lead salt solution; s2, filtering to obtain a primary lead salt solution; s3, diluting the primary lead salt solution to 0.015-0.15 mol / L, carrying out activated carbon adsorption and ion exchange resin purification, carrying out reduced pressure evaporation, and washing to obtain a high-purity lead salt crystal; s4, dropwise adding the high-purity lead salt solution into the iodized salt solution for precipitation reaction, and filtering after aging; and S5, dispersing the precipitate in a first solvent, washing, and filtering to obtain the high-purity lead iodide. The invention relates to a high-purity lead iodide synthesis method, which comprises the following steps: applying a low-cost auxiliary solvent to a lead dissolution reaction, carrying out precipitation reaction on a lead salt solution, carrying out preliminary impurity removal treatment, carrying out resin adsorption and other combined processes, reducing the content of impurity elements in high-quality metal lead, and preparing high-purity lead iodide; the combined process is easy and convenient to operate, the used reagents are wide in source and low in cost, the final product is high in purity, operation conditions are mild, and the combined process is suitable for the requirement of large-scale process production.

This invention belongs to the field of electrocatalysis technology and discloses a method for preparing porous gallium oxide based on pulsed electrochemical corrosion. Using phosphoric acid solution as the electrolyte, and employing pulsed electrochemical corrosion at a pulse potential of 6-14 V for 20-90 min with a duty cycle of 30%-70%, porous gallium oxide was successfully prepared. This invention utilizes pulsed electrochemical corrosion under low-temperature conditions. During the pulse-on phase, it enhances the oxidation-dissolution reaction at the anodic interface and promotes the breaking of Ga-O bonds. During the pulse-off phase, the interfacial diffusion conditions are restored, and reaction products and locally accumulated ions are released in a timely manner. Through this periodic dissolution-recovery process, the surface passivation layer formed under continuous bias voltage is effectively overcome, promoting more uniform, continuous, and controllable local dissolution on the gallium oxide surface. Furthermore, through synergistic regulation with electrical parameters, a uniformly distributed and size-tunable porous structure is directly formed on a β-Ga2O3 substrate.

The application discloses a treatment method of mixed rare earth concentrate. The treatment method comprises the following steps: reacting the mixed rare earth concentrate with first hydrochloric acid to obtain a roasting ore and a roasting liquid; roasting the roasting ore to obtain a roasted ore; performing a first alkali dissolution reaction on the roasted ore and a first alkali solution to obtain a first alkali dissolution product; washing the first alkali dissolution solid product with water to obtain an alkali cake I and a washing alkali liquid I; precipitating sodium fluoride in the washing alkali liquid I to obtain sodium fluoride and residual alkali I; performing a second alkali dissolution reaction on raw materials comprising phosphorus-containing materials and a second alkali solution to obtain a second alkali dissolution product; washing the second alkali dissolution solid product with water to obtain an alkali cake II and a washing alkali liquid II; precipitating trisodium phosphate in the washing alkali liquid II to obtain trisodium phosphate and residual alkali II. The method can recover the fluorine element and the phosphorus element in the mixed rare earth concentrate respectively, and the obtained sodium fluoride and trisodium phosphate have high purity.

The application belongs to the technical field of battery materials, and specifically discloses a preparation method of battery-grade trimanganese tetraoxide. The application first mixes a complexing agent, a pH regulator and an ethanol aqueous solution to obtain a mixed solution; then the mixed solution is mixed with a manganese source to perform a complexing dissolution reaction; after the reaction is completed, oxygen is introduced into the mixed solution to sequentially perform an oxidation reaction, an induced hydrolysis assembly and aging, so as to obtain the battery-grade trimanganese tetraoxide; the complexing agent comprises one or more of glycine, sodium glutamate, ammonium acetate, triammonium citrate and aminotri (methylene) phosphonic acid. The preparation method provided by the application has the advantages of few steps, short path and low energy consumption; and the trimanganese tetraoxide obtained finally has the advantages of stable properties, high quality, high sphericity and high manganese content.

The present disclosure provides a non-isothermal wet atomic layer etch (ALE) process for etching polycrystalline materials, such as metals, metal oxides and silicon-based materials, formed on a substrate. More specifically, the present disclosure provides various embodiments of methods that utilize thermal cycling in a wet ALE process to independently optimize the reaction temperatures utilized within individual processing steps of the wet ALE process. Like conventional wet ALE processes, the wet ALE process described herein is a cyclic process that includes multiple cycles of surface modification and dissolution steps. Unlike conventional wet ALE processes, however, the wet ALE process described herein is a non-isothermal process that performs the surface modification and dissolution steps at different temperatures. This allows independent optimization of the surface modification and dissolution reactions.

This invention discloses a combined process for restoring reservoir drainage and gas production channels using high-pressure drive and chemical dissolution, relating to the field of efficient oilfield exploitation technology. The process includes: S1, conducting production profile testing and sampling analysis of blockages in the target gas well to determine the type, distribution location, and reservoir physical parameters of the blockages, and preparing a corresponding chemical dissolving agent based on the analysis results. This invention couples the mechanical fracture-creating effect of high-pressure pulsed fluid with the cavitation effect and vibrational mass transfer effect of ultrasound. Based on the initial dissolution of blockages by the chemical dissolving agent, the stress waves generated by the high-pressure pulse expand the reservoir microfractures. Simultaneously, the collapse of microbubbles generated by ultrasound enhances the dissolution reaction rate, and the vibration promotes the dissolving agent's penetration into the micropores, achieving a synergistic effect of chemical dissolution and physical displacement, thoroughly removing blockages from the pore throats, and avoiding secondary precipitation of dissolution products.

To provide a method for producing an aromatic polyether that enables simple and efficient removal of a solvent and an alkali metal halide from the reaction mixture of the aromatic polyether, and reduces a residual solvent and an inorganic salt contained in the aromatic polyether to or below a specified level.SOLUTION: A method for producing an aromatic polyether, comprising: a reaction step of obtaining the aromatic polyether by reacting a raw material mixture in the presence of a reaction solvent; and a washing step of washing the aromatic polyether obtained in the reaction step using a washing solvent that dissolves both the reaction solvent and an alkali metal halide generated in the reaction step.SELECTED DRAWING: None

The utility model discloses a sodium silicate dissolving reaction kettle which comprises a kettle body, a driving device, a discharging assembly, a feeding assembly, a shoveling plate and a manhole, the kettle body is driven by the driving device, the shoveling plate is arranged in the kettle body to increase the reaction strength of quartz sand and caustic soda, and the purposes of shortening the reaction time, improving the reaction efficiency and reducing the unit consumption of steam are achieved. The feeding port is formed in the side wall of the kettle body and connected with the feeding pump, so that automatic closed feeding of quartz sand and caustic soda mixed slurry raw materials is achieved, a traditional feeding mode of manually opening a top cover is replaced, the feeding efficiency is improved, shoveling plate sets distributed at intervals in the circumferential direction and the kettle body rotate to form a synergistic effect, and when the kettle body rotates, the stirring effect is good. Materials are continuously lifted to a high point through the shoveling plate and then freely fall, so that the solid-liquid contact area is increased, and the dissolution reaction time is shortened.

The invention relates to the technical field of pharmaceutical chemicals, in particular to a refining method of an eplerenone intermediate. The method comprises the following steps: S1, dissolving: sequentially adding an eplerenone methyl ester crude product, an organic solvent and water into a reaction bottle, and stirring and heating to completely dissolve the eplerenone methyl ester crude product, the organic solvent and the water; s2, reaction: adding inorganic alkali into a dissolved reaction system, and stirring for full reaction at controlled temperature; s3, elutriation: cooling the system to room temperature, and slowly dropwise adding water to precipitate a solid product; s4, devitrification: cooling, devitrifying and fully stirring; s5, filtering and drying: filtering the system for solid-liquid separation, and drying to obtain an eplerenone methyl ester fine product. The eplerenone methyl ester refining method provided by the invention is high in product yield and low in cost, the adopted organic solvent is a common solvent and is low in toxicity, and the eplerenone methyl ester refining method has good industrial application value and is very suitable for large-scale industrial application.

This disclosure provides a solid-state battery that has a negative electrode layer, a protection layer, a solid electrolyte layer, and a positive electrode layer in this order and uses a deposition-dissolution reaction of metal lithium. The negative electrode layer includes a first metal element that is able to alloy with lithium. The protection layer includes a second metal element that is able to alloy with lithium. The first and the second metal elements are different elements; and, as seen in a sectional view of the solid-state battery along a thickness direction, the protection layer has a first protruded portion that is protruded outward beyond an end face of the negative electrode layer in a direction orthogonal to the thickness direction, and the solid electrolyte layer has a second protruded portion that is protruded outward beyond an end face of the protection layer in the direction orthogonal to the thickness direction.

This invention relates to a gas separation membrane for N2 / CH4 using a dual-selectivity mechanism and its preparation method. Chromium nitrate nonahydrate, an organic acid, acetylacetone, ethyl acetate, and acetone are mixed and dissolved to obtain a dark green solution. The dark green solution is poured into sufficient diethyl ether to precipitate the precipitate, which is then dried in a vacuum oven to obtain chromium cluster powder. An MXene colloidal solution is lyophilized to obtain MXene sheet material. Deionized water and chromium cluster powder are mixed to form solution A. The MXene sheet material is added to solution A to obtain mixture B. Mixture B is deposited onto nylon filter paper using vacuum filtration to form a gas separation membrane, which is then placed in a vacuum oven to activate the chromium clusters. A Cr-MXene gas separation membrane rich in Cr clusters between MXene sheets is prepared. The prepared membrane possesses both diffusion-selectivity and reaction-selectivity mechanisms, enabling efficient separation of the N2 / CH4 system.

The application provides a temperature gradient monitoring method and system for bismuth target dissolution reaction, relates to the technical field of data monitoring, and comprises the following steps: step 1, acquiring energy deposition density distribution data and nuclide activity data along the axial and radial directions inside the bismuth target, and converting the nuclide activity data into nuclide mass data at corresponding positions; step 2, based on the nuclide mass data, calculating the intensity of a photon source term generated by a spallation reaction inside the bismuth target and corresponding energy group division results, inputting the intensity of the photon source term and the corresponding energy group division results into a photon transport calculation model to perform photon transport calculation, and obtaining a photon radiation dose equivalent rate distribution outside the target body. The application eliminates radiation interference, accurately characterizes the three-dimensional non-uniform distribution of heat sources inside the bismuth target by dividing nested three-dimensional subspace domains, constructing a three-dimensional closed vortex loop and combining a comprehensive correction factor with a photoacoustic signal temperature effect correction, and realizes real and reliable monitoring of the axial and radial temperature gradients in the bismuth target dissolution reaction.

The present application belongs to the technical field of industrial control, and discloses a material dissolving reaction monitoring method, a monitoring device and a material dissolving reaction system. The material dissolving reaction monitoring method comprises the following steps: based on a reaction equation, calculating a first gas mass of a gas generated in a dissolving reaction according to the mass of all materials; making the environment in a dissolving tank reach a target environment; in the dissolving reaction, when a preset condition is met, making the vacuum degree in the dissolving tank and the vacuum degree in the dissolving tank before the dissolving reaction be the same, calculating the difference between a first mass before the dissolving reaction and a second mass in the dissolving reaction to obtain a second gas mass, the first mass and the second mass being the sum of the mass of the dissolving tank, a first reaction material and a second reaction material, when the difference between the first gas mass and the second gas mass is less than or equal to a preset threshold, determining that the dissolving reaction is completed, otherwise, determining that the dissolving reaction is not completed. The present application can effectively determine whether the dissolving reaction is completed.

The application relates to the technical field of process data analysis and processing, and discloses a coal-based solid waste resourceization full-process intelligent management and control platform and a digital twin system. The platform comprises: an identification module, which identifies the mineral phase of coal-based solid waste through a ray diffractometer to obtain mineral composition classification data; a construction module, which constructs a digital twin model based on the classification data, simulates a dissolution reaction, and obtains weathering and soil formation process data; an establishment module, which establishes a pollutant migration prediction model according to the process data to obtain environmental risk data; an optimization module, which optimizes the risk data through an improved particle swarm-genetic hybrid algorithm to obtain a resourceization path scheme; and an adjustment module, which adjusts process parameters based on the path scheme to obtain full-process management and control instructions. The application solves the problems of lacking accurate mineral phase identification and intelligent classification in the process of coal-based solid waste resourceization, and failing to construct a dynamic prediction model and simulate a weathering and soil formation process in real time based on mineral composition data.

The utility model relates to the field of tungsten smelting equipment, and provides tungsten hydrometallurgy coordination agent feeding equipment which comprises a feeding box, a feeding port used for filling a coordination agent is formed in the top of the feeding box, a discharging port used for conveying the coordination agent downwards is formed in the bottom of the feeding box, the lower end of the discharging port is communicated with a control mechanism, and the other end of the control mechanism is communicated with a reaction kettle. The control mechanism is used for automatically controlling the conveying of the coordination agent, a detector is arranged on the reaction kettle, and the detector is electrically connected with the control mechanism. By arranging the detector, the dissolution degree of the tungsten-calcium material in the reaction kettle can be monitored in real time. Through precise data provided by the detector and automatic control of the control mechanism, whether a coordination agent is supplemented or not can be determined, and sufficient coordination dissolution reaction of tungsten and calcium materials in the reaction kettle is ensured. The automatic control mode not only improves the uniformity and sufficiency of the reaction, but also reduces the uncertainty of manual operation, thereby remarkably improving the production efficiency and the product quality.

The invention relates to the technical field of white carbon black extraction, in particular to a white carbon black extraction process which comprises the following steps: S1, raw material selection: selecting fly ash as a raw material, and pretreating the fly ash to obtain a base material; s2, alkali fusion reaction: carrying out alkali fusion reaction treatment on the base material to obtain a coarse material; s3, leaching treatment: leaching the coarse material to obtain a sodium silicate solution; s4, acidizing and precipitating, namely acidizing and precipitating the sodium silicate solution. According to the invention, the dissolution reaction of dry silicon is avoided after oxidation treatment is carried out on impurities in the fly ash, the silicon dioxide content of the white carbon black is effectively increased, a good adsorption effect can be achieved by adding the fluxing agent and utilizing a porous structure of kaolin, and the formation of insoluble substances can be effectively avoided in combination with the reduction effect of sodium borooxide; the sodium fluoroaluminate can play a role in reducing melt viscosity, promote dissociation of sodium silicate, reduce silicon loss and effectively improve the output rate of white carbon black.