96 results about "Nickel Carbonate" patented technology

The invention discloses a method for removing lead and supplementing nickel from electrodeposited nickel anolyte, which relates to the technical field of nickel wet smelting, is used for purifying and removing lead from anolyte of a pure sulfuric acid system, and comprises the following steps of: adding the electrodeposited anolyte into refined nickel sulfate oil-removed liquid and nickel carbonate slurrying liquid, introducing air, controlling the temperature, and entering an acid dissolution lead removal tank for acid dissolution; and filtering the acid-dissolved solution through an acid dissolution filter press, pumping the obtained primary filtrate into a precision filter, pumping the obtained secondary filtrate into a secondary filtrate storage tank, pumping the secondary filtrate into a catholyte tank through a secondary filtrate delivery pump, and enabling the obtained catholyte as an electrodeposition cell catholyte to enter an electrodeposition process. The method has the advantages of being short in technological process, high in lead removal efficiency, simple and convenient to use, easy to filter, low in energy consumption, capable of recycling the falling solution, convenient for industrial production and the like.

The invention provides a method for efficiently synthesizing basic nickel carbonate, and belongs to the technical field of chemical preparation. Comprising the following steps: (1) preparing a mixed solution of sodium carbonate and sodium hydroxide; (2) under low-temperature and high-speed stirring conditions, dropwise adding a nickel salt solution into the mixed solution, adding a competitive adsorbent, adjusting the pH value of the solution, then heating, continuing stirring reaction, separating the competitive adsorbent by a magnet, centrifuging, washing and collecting prepared primary basic nickel carbonate; and (3) recrystallizing the primary basic nickel carbonate in an ethanol water solution, and drying to obtain the basic nickel carbonate. According to the preparation method disclosed by the invention, the content of impurity ions in the product is reduced, so that the high-purity basic nickel carbonate can be prepared, the synthesis efficiency is high, the production cost is relatively low, the method is green and environment-friendly, the competitive adsorbent can also be repeatedly utilized and recycled, the production cost is reduced, and the method has a wide application prospect.

The invention relates to a preparation method of a high-activity transition metal phosphide catalyst, which comprises the following steps: taking basic nickel cobalt carbonate (NiCo-OH / NF) grown on foamed nickel in situ as a precursor, placing the precursor at the downstream of a tubular furnace, placing NaH2PO2 at the upstream of the tubular furnace, annealing in a nitrogen atmosphere at 350 DEG C for 2 hours, and naturally cooling to obtain NiCoP / NF; the preparation method comprises the following steps: soaking NiCoP / NF in a potassium salt solution of a boride, washing, and carrying out vacuum drying to obtain a boron-potassium modified catalyst precursor NiCoP-BK / NF; in a three-electrode system, electrodeposition is carried out in an electrolyte containing a Ni source, a Fe source and deionized water, and the high-activity transition metal phosphide-nickel iron hydroxide NiCoP-BK-coated NiFe-LDH / NF heterojunction composite catalyst is obtained. The activity and stability of the transition metal phosphide catalyst can be remarkably improved, and the preparation method is simple and low in cost.

The invention discloses a method for preparing high-purity nickel acetate from crude nickel carbonate in the technical field of nickel compound purification, which comprises the following steps: mixing the crude nickel carbonate with deionized water to obtain a suspension, and adding glacial acetic acid to react to obtain a nickel acetate solution; then a specially-made hierarchical-pore titanium silicalite molecular sieve loaded bimetallic nanocluster material is added for purification treatment, the material is obtained through precise preparation, the method comprises the steps of carrier modification, bimetallic loading, hydrophobic modification, activation balance and the like, and the material has excellent impurity adsorption capacity and chemical stability; carrying out concentration crystallization and solid-liquid separation on the purified solution to obtain wet nickel acetate crystals; the mother liquor is subjected to adsorption treatment again, crystals in the mother liquor are recycled, and finally all the crystals are combined and dried to obtain a high-purity nickel acetate product. The process is simple and efficient, the purity of the prepared nickel acetate exceeds 98.5%, the content of each impurity is superior to the industrial standard, and the mother liquor can be recycled, is environment-friendly and is suitable for industrial production.

The invention discloses a method for preparing battery-grade nickel sulfate through collaborative purification of crude nickel sulfate and crude nickel carbonate. According to the method, crude nickel sulfate is dissolved firstly, then crude nickel carbonate is utilized for batch synergistic neutralization, and the alkalinity of the nickel carbonate is effectively utilized to reduce extra acid and alkali consumption. And then through multi-stage fine purification, including Fe oxidation and preliminary precipitation, Cr (VI) reduction and high-pH precipitation, main impurities such as iron, chromium, aluminum and the like are efficiently removed. And after the mother liquor is adsorbed by activated carbon and trace impurities are removed by strong-acid cation exchange resin, vacuum evaporation and concentration are carried out, and seed crystals are introduced for cooling crystallization, so that pure NiSO4. 6H2O crystals are obtained. The whole technological process pays attention to resource recycling, washing water recycling and nickel recycling of nickel-containing filter residues, waste gas and waste liquid are treated, and clean production is achieved. The nickel sulfate product prepared by the method is high in purity, meets the battery grade standard, and has good economic benefits and environmental benefits.

The invention discloses a method for preparing low-sulfate basic nickel carbonate, and belongs to the technical field of chemical engineering, a three-stage grading washing process is designed through precipitant selection and grading washing processes, each stage of washing has specific purposes and conditions, and particularly, ammonium sulfate and residual sulfate radicals are subjected to competitive reaction in secondary washing, so that the low-sulfate basic nickel carbonate is prepared. The method effectively solves the problem of high sulfate radical content of basic nickel carbonate in the prior art, improves the purity and performance of the product, and has the advantages of simple operation, low cost and the like. The process method has good application prospects and market value and is expected to be widely applied to the field of chemical material preparation.

The invention discloses a basic nickel carbonate impurity analysis method and system. The method comprises the following steps: judging whether each first identification result is an abnormal identification result or not; if a certain first recognition result is an abnormal recognition result, obtaining a certain target original image corresponding to the certain first recognition result, determining a certain position of the certain target original image in a certain original image sequence, and selecting other original images from other original image sequences according to the certain position; and inputting other original images into the image recognition model, outputting a second recognition result corresponding to other original images by the image recognition model, and performing basic nickel carbonate impurity analysis on a certain original image sequence and each original image in other original image sequences by adopting a preset impurity analysis strategy, and obtaining an analysis result of basic nickel carbonate on each production line. The efficiency of basic nickel carbonate impurity analysis in the whole production line can be effectively improved.

The present invention relates to the field of water treatment, and discloses a nanosheet composite hollow sphere and a preparation method and application thereof. The particle size of the hollow sphere is 2-3 μm, and the thickness of the sphere wall is 300-500 nm; the length of the nanosheet is 300-500 nm, and the thickness of the nanosheet is 5-10 nm; the components of the nanosheet include basic nickel carbonate and nickel hydroxide. The nanosheet composite hollow sphere material of the present invention has a novel morphology and a large specific surface area. When it is used as an electrode material for capacitive desalination, it has excellent capacitive desalination performance, can be reused, and has a simple preparation method, and has great industrial application prospects.

This application relates to the field of recovery of metal ion waste liquid, and discloses a system and process for recovering and preparing nickel carbonate. The system includes a reaction kettle, which is connected with an ammonia water pipe, a nickel liquid pipe and an alkali liquid pipe that are introduced into the interior of the reaction kettle; the ammonia water pipe is used to introduce ammonia water into the reaction kettle; the nickel liquid pipe is used to introduce the nickel ion solution obtained from the cation exchange unit into the reaction kettle; the alkali liquid pipe is used to introduce alkali liquid into the reaction kettle. The height of the ammonia water outlet is higher than that of the nickel liquid outlet; the height of the nickel liquid outlet is higher than that of the alkali liquid outlet; during the reaction process, the pH of the liquid material in the reaction kettle is controlled to be not lower than 8 and higher than 9.2. By utilizing the multi-layer concentration distribution orientation of the raw materials, the swelling of liquid bubbles and the overflow of a large amount of foam from the reaction kettle are greatly reduced, protecting the safety of the reaction kettle equipment and ensuring that the raw material liquid can be normally pumped into the reaction kettle. The waste water recovery and treatment can be carried out stably and efficiently for a long time, improving the efficiency of waste water recovery and treatment.

The invention discloses a method for measuring the content of carbonate in an industrial basic nickel carbonate substance. The method comprises the following steps: preparing a standard solution, and drawing a standard curve; weighing an industrial basic nickel carbonate sample and putting the industrial basic nickel carbonate sample into a 10ml small sample cup 1; the reaction device is adjusted, and the content of the sample carbonate in the industrial basic nickel carbonate is calculated according to the drawn standard curve; the device and the method provided by the invention are simple and convenient to operate, accurate in result and good in reproducibility, and can be used for accurately measuring the carbonate content in the industrial basic nickel carbonate sample. The method is suitable for rapid determination of carbonate in industrial basic nickel carbonate, and has good popularization and application values.

The invention provides an intelligent drying box for drying nickel carbonate, and belongs to the technical field of material processing auxiliary equipment.The intelligent drying box for drying nickel carbonate comprises a machine body, an air heater, a feeding channel and a discharging port, the air heater is installed at the top of the machine body, the machine body is of a tank structure, and the feeding channel is installed at the top of the machine body; the bottom of the feeding pipeline extends into the machine body, and the discharging opening is formed in the bottom of the machine body; materials fall into the feeding channel, are scattered by the double-shaft scattering device, fall into the drying disc under the action of gravity and are dried, and the material flattening mechanism can flatten the materials on the drying disc and fully scatter the materials at the same time, so that the materials can be fully dried, and the drying efficiency is improved.

This invention discloses a data analysis-based method and system for early warning of anomalies in basic nickel carbonate production. The method includes: acquiring historical monitoring data within a preset time period; selecting key target data points by calculating data deviation; and extracting multiple historical monitoring data sequences with adjacent target data points as start and end points. During real-time monitoring, when the current monitoring data does not exceed a preset threshold, it is matched with the most similar historical sequence. By analyzing the subsequent data change rate trend of the sequence, it is determined whether there are potential anomalies in the current data. Combining static threshold early warning with dynamic trend early warning can identify risks that are still within the safe range but have abnormal development trends, realizing the transformation from post-event alarm to pre-event early warning. This significantly improves the timeliness and accuracy of early warning in the basic nickel carbonate production process, effectively ensuring production safety and stability.

The invention provides a method for preparing uniform porous nickel particles through a self-template. The method comprises the following steps that firstly, nickel salt and a precipitator are mixed according to a preset proportion to prepare a solution, and the solution is placed in a reactor to prepare a layered basic nickel carbonate precursor (NiCO3.2N i (OH) 2.4 H2O); 2, calcining the prepared precursor in a high-temperature environment to obtain mesoporous nickel protoxide (NiO); and 3, the mesoporous nickel protoxide is subjected to high-temperature reduction in the H2 atmosphere, and the final product porous nickel particles are obtained. The novel preparation method is provided for producing the porous nickel particles, the raw materials are low in cost and easy to obtain, the prepared porous nickel particles are stable in structure and controllable in pore diameter, the production cost and the market price of the porous nickel particles are expected to be further reduced, and application of the porous nickel particles in the field of catalysis is expanded.

The invention relates to the technical field of waste cadmium-nickel battery recovery, in particular to a waste cadmium-nickel battery anode powder recovery method which comprises the following steps: S1, nickel anode powder is subjected to activation pretreatment to obtain anode slurry; s2, the anode slurry and a leaching agent are mixed for second-stage leaching treatment, and after the leaching reaction is finished, leaching anode liquid is obtained through solid-liquid separation; s3, the leached anolyte and a purifying agent are mixed for secondary purification treatment, and after the purification reaction is finished, solid-liquid separation is conducted to obtain purified anolyte; s4, the purified anolyte is subjected to extraction and reverse extraction treatment, and a nickel-containing pregnant solution is obtained; and S5, adding a precipitator into the nickel-containing pregnant solution to obtain nickel carbonate. According to the waste cadmium-nickel battery anode powder recovery method, efficient recovery of nickel is achieved, the total extraction rate of nickel can effectively exceed 98.5%, and the purity of generated nickel carbonate is higher than 99.6%.

The present invention provides a non-precious metal catalyst and a preparation method thereof. The preparation method comprises: preparing a sol, mixing butyl titanate, ammonium fluoride, and ethylene glycol to obtain a sol; preparing a support, first immersing a porous template in the sol, then heating the immersed porous template, and cooling it to obtain a porous titanium dioxide support; preparing a slurry, dissolving basic nickel carbonate, nickel sulfate hexahydrate, nickel chloride hexahydrate, sodium citrate, sodium chloride, boric acid, and cobalt nitrate hexahydrate in deionized water to obtain a slurry; and electrodeposition, immersing the porous titanium dioxide support in the slurry and subjecting the porous titanium dioxide support to a constant potential polarization treatment using a three-electrode system to obtain the non-precious metal catalyst. The preparation method provided by the present invention solves the problems of high cost, low catalytic efficiency, and unstable catalytic activity of existing electrocatalysts.

The invention discloses a method for producing high-quality nickel chloride from a nickel carbonate raw material, and relates to the technical field of nickel salt wet smelting. The method comprises the following specific steps: slurrying nickel carbonate and nickel chloride mother liquor, dissolving with hydrochloric acid under normal pressure, and then carrying out N235 extraction impurity removal, oil removal, lead removal, evaporation, crystallization, centrifugation, drying and other procedures to obtain high-quality nickel chloride. The high-quality nickel chloride product is obtained by controlling the temperature and pH of normal-pressure dissolution and controlling the extraction agent and the extraction flow ratio in the extraction and impurity removal process, Ni is larger than or equal to 24%, Co is smaller than or equal to 0.001%, Cu is smaller than or equal to 0.0001%, Fe is smaller than or equal to 0.001%, Pb is smaller than or equal to 0.0008%, Zn is smaller than or equal to 0.0001%, Ca is smaller than or equal to 0.026%, Mg is smaller than or equal to 0.02%, Na is smaller than or equal to 0.27%, water insoluble matter is smaller than or equal to 0.005%, and the product quality meets the requirements of GB / T 26522-2011 refined nickel chloride first-grade products. The method has the advantages of being short in technological process, high in leaching efficiency, short in time, easy to filter, low in energy consumption, convenient for industrial production and the like.

A method of using a tungsten inert gas (TIG) welding flux for super duplex stainless steel (SDSS) is used to solve the problems of low weld depth / width ratio, low corrosion resistance, and arc blow existing in the conventional TIG welding flux for duplex stainless steel. The TIG welding flux for SDSS includes 20-30 wt % of silicon dioxide (SiO2), 20-25 wt % of titanium dioxide (TiO2), 15-20 wt % of vanadium dioxide (VO2), 10-15 wt % of molybdenum trioxide (MoO3), 10-15 wt % of zirconium diboride (ZrB2), 5-10 wt % of aluminum nitride (AlN), 5-10 wt % of manganese carbonate (MnCO3) and 5-10 wt % of nickel carbonate (NiCO3).

The invention belongs to the field of inorganic functional materials, and particularly relates to a basic nickel carbonate modified material and a preparation method thereof.The method comprises the steps that nickel nitrate hexahydrate is dissolved in deionized water, urea and cetyltrimethylammonium bromide are added, the mixture is heated and stirred mildly, and stirring is performed to obtain a basic nickel carbonate modified material; then adding a specially-made polyaminophenylboronic acid nickel complex and a cobalt-nickel phosphate ethanediamine hybrid material, performing ultrasonic dispersion to form a mixed solution, and then performing hydrothermal reaction, centrifugal washing and vacuum drying to obtain a final product. The two special modified compounds are respectively prepared through a coordination reaction regulated by ammonia water and a hybridization reaction under high-temperature and high-pressure conditions. The modified material prepared by the method has a unique microstructure and enhanced physical and chemical properties, shows excellent application prospects in the fields of electrochemical energy storage, electro-catalytic water and environmental remediation, and particularly, the comprehensive performance of the material is remarkably improved due to the high specific surface area, abundant active sites and a stable structure.

The application discloses MgCuNiMn-O polygranules and a preparation method and application thereof, and comprises the following steps: mixing magnesium carbonate, manganese carbonate, copper carbonate, nickel carbonate and sodium bicarbonate, uniformly performing dry ball milling to obtain a mixed powder; adding a mixed solution of an organic binder and a dilute solvent into the obtained mixed powder, performing wet ball milling to prepare a slurry; performing spray granulation on the obtained slurry to obtain spherical precursor granules; performing programmed temperature annealing treatment on the obtained spherical precursor granules in a protective atmosphere; and after cleaning and drying the obtained annealing product, the MgCuNiMn-O polygranules are obtained. The method can prepare granules with spherical morphology, multi-stage pore structure and high specific surface area through component precise regulation and a double pore-forming mechanism, effectively solves the bottleneck of uneven dispersion of multi-component materials and microstructure regulation difficulty, and the obtained product has excellent electromagnetic wave absorption performance and application potential in the wave absorption field.

The invention relates to the technical field of a precursor for a lithium nickel manganese oxide positive electrode material, in particular to a method for preparing a lithium nickel manganese oxide precursor by using a by-product manganese salt, which comprises the following steps: carrying out barium hydroxide coagulation treatment on the by-product manganese salt and a crude nickel salt with low raw material price to obtain a primary filtrate, and then carrying out manganese fluoride treatment to obtain a secondary filtrate; a nickel manganese carbonate material with a micro-nano spherical structure can be prepared from a qualified water-phase solution obtained after tributyl phosphate is extracted and oil-water separation by adopting an ethanol-water mixed liquid-phase reaction system under the assistance of a surfactant and process conditions, an oil-phase solution is subjected to metal manganese reverse extraction to obtain a filter residue, namely manganese fluoride, and an oil phase is returned to an extracting agent again, so that the nickel manganese carbonate material with a micro-nano spherical structure is obtained. The waste water and the waste residue produced by the method can be returned to the process flow for reuse, so that the environmental pollution is small. The obtained product manganese sulfate solution can reach the standard of battery-grade manganese sulfate, the fluorine content of the solution is low, and the prepared nickel manganese carbonate precursor is high in purity and is superior to that of an existing process.

The invention belongs to the technical field of nickel material smelting, and discloses a method for preparing high-purity nickel by synergic circulation of electrodeposited nickel anolyte, which comprises the following steps: performing primary nickel precipitation on a nickel sulfate solution and sodium carbonate, and performing solid-liquid separation to obtain nickel carbonate and primary filtrate; carrying out second-stage nickel precipitation on the first-stage filtrate and sodium hydroxide, and carrying out solid-liquid separation to obtain nickel hydroxide and second-stage filtrate; the method comprises the following steps: performing electrodeposition on nickel carbonate and nickel hydroxide, performing acid dissolution on anolyte to generate a nickel-containing solution, preparing a new cathode solution from the nickel-containing solution, pure water, boric acid, the anolyte and sodium sulfate, and performing electrodeposition to obtain high-purity nickel. The process has remarkable advantages, sodium carbonate is used for primary nickel precipitation, the requirement for large-scale nickel precipitation is met, and the product is easy to filter and low in cost; sodium hydroxide is used for secondary nickel deposition, deep nickel deposition is achieved, the use amount is small, and the defect of difficult filtration is avoided; and the front nickel deposition process can intercept impurities, the impurity removal effect and the separation efficiency are both considered, and the overall production cost is greatly reduced.

The utility model relates to the technical field of pollution discharge accessories, concretely to a pollution discharge structure of a nickel carbonate extraction tank, comprising a pollution suction pipe connected with the nickel carbonate extraction tank, a pollution discharge pump is installed at one end of the pollution suction pipe, a pollution discharge pipe is installed at the liquid outlet of the pollution discharge pump, a backflushing pipe is communicated on the outer wall of the pollution suction pipe, and a mesh pipe for being inserted into the nickel carbonate extraction tank and detachable is installed at the end of the pollution suction pipe away from the pollution discharge pump. The utility model is connected with the nickel carbonate extraction tank through the pollution suction pipe, and the pollution discharge pump is installed at one end of the pollution suction pipe, and the pollution discharge pipe is installed at the liquid outlet of the pollution discharge pump, so that the dirt in the nickel carbonate extraction tank can be sucked out and discharged; the backflushing pipe communicated on the outer wall of the pollution suction pipe, the second control gate valve installed on the backflushing pipe and the backflushing air pump installed at the far end can backflush the pollution suction pipe when needed; and the first control gate valve installed between the backflushing pipe and the pollution discharge pump on the pollution suction pipe can control the on-off of the pollution suction pipe.

The invention discloses nano nickel molybdate and a preparation method and application thereof, and belongs to the technical field of capacitor materials. The preparation method of the nano nickel molybdate comprises the following steps: mixing a molybdenum source and a nickel source according to a molar ratio of Mo to Ni of 3: 8 to 9: 8 to obtain a mixture; wherein the molybdenum source is nano molybdenum oxide, and the nickel source comprises at least one of nickel oxide and nickel carbonate; the mixture is preheated for 60 min to 80 min under the condition that the temperature ranges from 150 DEG C to 180 DEG C; and the preheated mixture is subjected to a reaction for 100 min to 150 min under the condition of 450 DEG C to 490 DEG C, and the nano nickel molybdate is obtained. The preparation method is simple in process, convenient to operate, capable of achieving large-scale production and high in practicability. The nanometer nickel molybdate obtained by the method is in a nanometer level, and a super capacitor with high energy density can be further prepared.

The invention discloses a basic nickel carbonate sulfate radical deep removal method based on multistage countercurrent washing, and belongs to the technical field of chemical engineering, the method realizes efficient and deep removal of sulfate radical ions in basic nickel carbonate by adding a specific additive, optimizing a multistage countercurrent washing system and adding a washing liquid recycling and refining step, and the method is suitable for industrial production. The problem of high sulfate radical content of basic nickel carbonate in the prior art is effectively solved, the production cost and environmental pollution are reduced while the removal rate of the sulfate radicals is increased, and the method has good economic benefits and social benefits.

The utility model relates to the technical field of nickel carbonate production, in particular to a multifunctional integrated precipitation reactor which comprises a base, two supports which are symmetrically arranged left and right are arranged at the top of the base, a precipitation reaction assembly and a separation drying assembly are arranged between the two supports, and the precipitation reaction assembly comprises a reaction tank. A discharging pipe with a valve is arranged at the bottom end of the reaction tank, the separating and drying assembly comprises a separating and drying box communicated with the discharging pipe, a filtering drawer is detachably connected into the separating and drying box, two electric heating plates are arranged at the top of the inner wall of the separating and drying box, and a liquid outlet pipe with a valve is arranged at the bottom of the separating and drying box. According to the multifunctional integrated precipitation reactor, the reaction tank, the separation drying box and the electric heating plate are integrated in the same equipment, so that continuous operation of nickel carbonate precipitation, solid-liquid separation and drying procedures is realized, and the problems of low efficiency, large occupied space and material energy loss caused by transfer of multiple equipment in a traditional process are thoroughly solved.

The invention provides a recovery method of a tungsten diamond wire. The recovery method comprises the following steps: mixing a tungsten filament diamond wire with an acid solution, and heating for reaction to form the tungsten filament wire, a nickel-containing salt solution and diamond precipitate; wherein the tungsten filament diamond wire comprises a tungsten filament and a coating layer coated on the surface of the tungsten filament, and the coating layer comprises a nickel metal layer and diamond particles embedded in the nickel metal layer; mixing the nickel-containing salt solution with carbonate to form nickel carbonate precipitate; mixing the nickel carbonate precipitate with sulfamic acid to prepare nickel sulfamic acid; wherein the heating temperature ranges from 20 DEG C to 80 DEG C. The recycling method is free of waste gas emission in the recycling process, simple in technological process, low in energy consumption and suitable for industrial large-scale application.

The invention relates to a preparation method of a solid solution fluoride positive electrode material. The preparation method mainly comprises the following steps: (1) reacting nickel carbonate and elemental iron with a fluosilicic acid solution respectively to obtain respective precursor solutions; (2) uniformly mixing and stirring the respective precursor solutions according to a certain molar ratio, adding deionized water for dilution, adding conductive carbon nanotubes to obtain a mixed solution, and drying to obtain solid powder; and (3) calcining the solid powder at 250 DEG C in a protective atmosphere to obtain the solid solution fluoride. The preparation method of the solid solution fluoride positive electrode material is simple in process and mild in condition, the obtained solid solution fluoride nanoparticles are relatively high in purity, relatively small in particle and relatively high in sodium ion diffusion coefficient, and the electrochemical performance of a sodium ion battery is remarkably improved after the solid solution fluoride nanoparticles are compounded with carbon.

This invention discloses a method and system for analyzing impurities in basic nickel carbonate. The method includes: determining whether each first identification result is an abnormal identification result; if a first identification result is an abnormal identification result, acquiring a target original image corresponding to the first identification result, determining a position of the target original image in a sequence of original images, selecting other original images from other sequences based on the position; inputting the other original images into an image recognition model, the image recognition model outputting a second identification result corresponding to the other original images, and using a preset impurity analysis strategy to perform basic nickel carbonate impurity analysis on each original image in the first and other sequences, obtaining the analysis results of basic nickel carbonate on each production line. This method can effectively improve the efficiency of basic nickel carbonate impurity analysis throughout the entire production line.

The application discloses a kind of polar ice base material inner mixing steel fiber corrosion prevention method, belong to steel fiber corrosion prevention technology field for ice base material, by oil removal, pickling, washing to steel fiber, then immerse in water, phosphoric acid, nitric acid, nickel nitrate, sodium molybdate, nickel carbonate and manganese carbonate composition film-forming solution, place in hydrothermal kettle and carry out surface oxidation treatment, prepare polar ice base material for corrosion-resistant steel fiber.The beneficial effects of the application are: using hydrothermal method, by chemical deposition on the surface of steel fiber a layer of wear-resistant, corrosion-resistant manganese-nickel-based crystal film, improve the corrosion resistance of steel fiber, at the same time, the surface roughness of the conversion film formed on the surface of the steel fiber is large, thereby improving the bonding strength of the steel fiber and the matrix, and improving the mechanical properties of the material.

The invention discloses a basic nickel carbonate impurity element detection method and system, and belongs to the technical field of impurity detection.The basic nickel carbonate impurity element detection method is characterized by comprising the steps that the concentration of a nickel matrix is obtained, corrected physical and chemical parameters are obtained according to the concentration of the nickel matrix and a static physical and chemical parameter library, and the physical and chemical parameters comprise ionization energy, a complexing constant and a volatilization coefficient; the concentration of the nickel matrix is obtained according to a to-be-detected solution, and the to-be-detected solution is obtained by digesting an original basic nickel carbonate sample; obtaining an enhanced signal according to the characteristic peak shape template and the solution to be detected; according to the method, the physical and chemical parameters of the impurities are dynamically corrected according to the actual nickel matrix concentration, the parameter mismatch error caused by matrix fluctuation is eliminated, the signal response benchmark is unified through dynamic valence correction, nonlinear quantitative modeling and digestion loss compensation are matched, and the concentration corresponding to each impurity element is obtained. And accurate prediction of the impurity concentration is realized.