Method of removing impurities out of nickel chloride leachate

A technology of nickel chloride and leaching solution, which is applied in the field of non-ferrous metal smelting, and can solve the problems of insufficient separation of nickel ions and impurity metal ions

Active Publication Date: 2014-10-01
金川集团镍盐有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the existing N 235 Insufficient extraction technology solves the problem that the separation degree of nickel ions and impurity metal ions cannot reach the electroplating grade nickel chloride chemical industry stand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Use 33% concentrated hydrochloric acid as the leaching agent to leaching the nickel-cobalt hydroxide raw material, the liquid-solid mass ratio of the concentrated hydrochloric acid to the nickel-cobalt hydroxide material is 1.0:1, acid leaching for 1.5 hours at a temperature of 80°C, and control the leaching end point pH to 3.5, filter to obtain nickel chloride leaching solution; take sulfonated kerosene as diluent, add sulfonated kerosene in p-507 until the concentration of p-507 is 0.73mol / L, take 10.0L p-507 concentration as 0.73mol / L organic solvent, add 500mL of 30% NaOH solution to react, carry out phase separation, the water phase is discharged to the waste water treatment system, and the sodium soap organic phase obtained after phase separation is mixed with 3000mL Ni 2+ Concentration is the reaction of the nickel chloride solution of 50.14g / L, carries out phase separation after the reaction, and after the phase separation, the water phase is discharged into the ...

Embodiment 2

[0022] Use 34% concentrated hydrochloric acid as the leaching agent to leach the nickel-cobalt hydroxide raw material, the liquid-solid mass ratio of the concentrated hydrochloric acid to the nickel-cobalt hydroxide material is 1.2:1, and acid leaching for 1.3 hours at a temperature of 70°C to control the leaching End point pH to 4.0, filter to obtain nickel chloride leaching solution; use sulfonated kerosene as diluent, add sulfonated kerosene to p-507 until the concentration of p-507 is 0.77mol / L, take 10.0L p-507 concentration It is 0.77mol / L organic solvent, add 500mL of 30% NaOH solution successively to react, carry out phase separation, and the water phase is discharged to the wastewater treatment system, and the sodium soap organic phase obtained after phase separation is then mixed with Ni 2+ Concentration is 62.47g / L nickel sulfate solution 3000mL reaction, carry out phase separation after the reaction, the water phase is discharged outside the waste water treatment sy...

Embodiment 3

[0024] Use 35% concentrated hydrochloric acid as the leaching agent to leach the nickel-cobalt hydroxide raw material, the liquid-solid mass ratio of the concentrated hydrochloric acid to the nickel-cobalt hydroxide material is 1.5:1, acid leaching for 1.0 hour at a temperature of 60°C, and control the leaching end point pH to 3.8, filter to obtain nickel chloride leaching solution; take sulfonated kerosene as diluent, add sulfonated kerosene to p-507 until the concentration of p-507 is 0.74mol / L, take 10.0L p-507 concentration as 0.74mol / L organic solvent, sequentially add 500mL of 30% NaOH solution to react, carry out phase separation, the water phase is discharged to the wastewater treatment system, and the sodium soap organic phase obtained after phase separation is then mixed with Ni 2+Concentration is 99.79g / L nickel sulfate solution 2000mL reaction, carry out phase separation, after phase separation, the water phase is discharged to the waste water treatment system, and ...

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PUM

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Abstract

The invention discloses a method of removing impurities out of nickel chloride leachate. The method comprises the following steps: in a sequence of extracting metals by using an extraction agent p-507, adding sulfonated kerosene serving as a diluent into p-507; then, sequentially reacting with a NaOH solution and a nickel chloride solution or a nickel sulfate solution; after reaction, carrying out phase separation; and finally, obtaining the extraction agent with the organic nickel load being 14.09-14.43g/L. According to the method disclosed by the invention, p-507 is converted into the extraction agent with the organic nickel load being 14.09-14.43g/L. The extraction agent can further separate impurities such as cobalt, copper, zinc, manganese, calcium and magnesium from the nickel chloride leachate. The nickel chloride extracted by the extraction agent satisfies the production requirements of electroplating-grade nickel chloride products. The method disclosed by the invention is simple, reliable and strongly operable in process and has good removal effect on impurities such as cobalt, copper, zinc, manganese, calcium and magnesium, does not introduce other impurities, expands a novel process of producing electroplating-grade nickel chloride products by nickel cobalt hydroxide raw materials, and has a good economic value.

Description

technical field [0001] The invention belongs to the technical field of nonferrous metal smelting, and relates to a method for removing impurities in a nickel chloride leaching solution. Background technique [0002] Nickel Chloride, NiCl 4 ·6H 2 O is mainly used in electroplating, as an anode activator in rapid nickel plating, as an ammonia absorbent in industry or gas masks, and in the manufacture of catalysts, chemical reagents, preservatives, dry batteries, etc., among which the electroplating industry uses the largest amount. With the rapid development of my country's economy, it has driven the strong demand for high-grade electroplating products in the electronics, electrical and automotive industries, and the application of high-quality nickel chloride in the electroplating industry has become increasingly widespread. Regarding the removal of impurity ions such as cobalt, manganese, copper and zinc in nickel chloride solution, the current general method is to use N ...

Claims

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Application Information

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IPC IPC(8): C22B3/38
Inventor 李宝平邢晓钟王霞董存武叶剑鸣张霞张国勇孙正德
Owner 金川集团镍盐有限公司
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