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Method for producing nickel cobalt manganese sulfate by using nickel cobalt manganese hydroxide raw material

A technology of nickel hydroxide cobalt and nickel sulfate, which is applied in the direction of nickel sulfate, etc., can solve the problems of high energy consumption and cumbersome process, and achieve the effects of simplifying the production process, solving time-consuming problems, and saving production costs

Active Publication Date: 2021-09-28
MEISHAN SHUNYING POWER BATTERY MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method includes the steps of impurity removal of nickel-cobalt sulfate solution, deep impurity removal of P204, cobalt extraction by P507, and re-extraction of nickel by P507 to produce nickel sulfate and cobalt sulfate respectively. The process is cumbersome and the energy consumption is high.

Method used

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  • Method for producing nickel cobalt manganese sulfate by using nickel cobalt manganese hydroxide raw material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, take nickel cobalt hydroxide raw material, take 1kg nickel cobalt hydroxide material as example, in this nickel cobalt hydroxide material after testing: the content of Co is 4.2%, the content of Ni is 30.3%, the content of Fe is 0.35% , the content of Al is 0.15%, the content of Ca is 0.6%, and the content of Mg is 0.6%. The above-mentioned nickel cobalt hydroxide raw material is processed as follows:

[0031] a. The above-mentioned nickel cobalt hydroxide raw material and water are made into a slurry according to the solid-to-liquid ratio of 1:2, and then the pH of the solution is adjusted to 1.5 by adding sulfuric acid, and the reaction temperature is controlled at 70°C, and the reaction time is 1h, and the nickel cobalt hydroxide raw material is Dissolved into a solution containing nickel and cobalt sulfate.

[0032] b. Remove iron, aluminum and calcium and magnesium from the solution containing nickel and cobalt sulfate obtained in step ...

Embodiment 2

[0036] Such as figure 1 As shown, get the nickel cobalt hydroxide raw material obtained by recovering the nickel cobalt raw material intermediate, take 1kg nickel cobalt hydroxide material as an example, in the nickel cobalt hydroxide material after testing: the content of Co is 5.8%, and the content of Ni is 38% , the content of Fe is 0.4%, the content of Al is 0.12%, the content of Ca is 0.5%, and the content of Mg is 0.8%. The above-mentioned nickel cobalt hydroxide raw material is processed as follows:

[0037]a. The above-mentioned nickel cobalt hydroxide raw material and water are made into a slurry according to a solid-to-liquid ratio of 1:8, and then the pH of the solution is adjusted to 0.5 by adding sulfuric acid, the reaction temperature is controlled at 65°C, and the reaction time is 0.5h, and the nickel cobalt hydroxide The raw materials are dissolved into a solution containing nickel and cobalt sulfate.

[0038] b. Remove iron and aluminum from the solution con...

Embodiment 3

[0042] Such as figure 1 As shown, get the nickel cobalt hydroxide raw material obtained by recovering the nickel cobalt raw material intermediate, take 1kg nickel cobalt hydroxide material as an example, in the nickel cobalt hydroxide material after testing: the content of Co is 5.5%, and the content of Ni is 37% , the content of Fe is 0.6%, the content of Al is 0.12%, the content of Ca is 0.5%, and the content of Mg is 0.8%. The above-mentioned nickel cobalt hydroxide raw material is processed as follows:

[0043] a. The above-mentioned nickel cobalt hydroxide raw material and water are made into a slurry according to the solid-to-liquid ratio of 1:10, then the pH of the solution is adjusted to 1.0 by adding sulfuric acid, the reaction temperature is controlled at 68°C, and the reaction time is 0.8h, and the nickel cobalt hydroxide The raw materials are dissolved into a solution containing nickel and cobalt sulfate.

[0044] b. Remove iron and aluminum from the solution con...

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Abstract

The invention provides a method for producing nickel cobalt manganese sulfate by using a nickel cobalt manganese hydroxide raw material, belonging to the technical fields of metallurgy and chemical industry. The method comprises the following steps: firstly, dissolving a to-be-treated nickel cobalt manganese hydroxide raw material in sulfuric acid to obtain a solution containing nickel cobalt manganese sulfate; then sequentially carrying out chemical impurity removal and fluoride deep impurity removal to respectively remove iron, aluminum, silicon, calcium and magnesium in the solution; and finally, carrying out co-extraction on nickel, cobalt and manganese by using a C272, P204 or P507 extraction agent and carrying out reverse extraction by using sulfuric acid to obtain pure nickel cobalt manganese sulfate. According to the method, the steps of impurity removal through P204, cobalt extraction through P507 and nickel re-extraction through P507 in a traditional technology are omitted, the dosage of the extracting agent, acid, alkali and the like is greatly reduced, and the problems that time consumption is long, process is complex, and cost is high when nickel, cobalt and manganese elements are extracted in a segmented mode in the prior art are effectively solved. Moreover, the manganese element in the raw materials is not removed as an impurity but directly enters extraction liquid together with nickel and cobalt, so production cost is further saved, and a production process is simplified.

Description

technical field [0001] The invention belongs to the technical field of metallurgy and chemical industry, and in particular relates to a method for producing nickel-cobalt-manganese sulfate for the preparation of nickel-cobalt-manganese ternary battery material precursors by utilizing nickel hydroxide, cobalt and manganese raw materials. Background technique [0002] In recent years, nickel-cobalt-manganese ternary battery materials have developed extremely rapidly. In order to seize market opportunities, domestic manufacturers have expanded production one after another. The domestic production and demand of nickel-cobalt-manganese sulfate have doubled. Since the nickel-cobalt pricing coefficient in the nickel-cobalt hydroxide market has been increasing year by year, and the supply has been in short supply, most manufacturers choose the hydrometallurgy product of laterite nickel ore, nickel-cobalt-manganese hydroxide, as the raw material for the production of nickel-cobalt-man...

Claims

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Application Information

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IPC IPC(8): C01G53/10
CPCC01G53/10Y02P10/20
Inventor 赵林但勇金长浩何永陈雪风陈顺智李莉赵顶
Owner MEISHAN SHUNYING POWER BATTERY MATERIALS CO LTD
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