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Method used for producing nickel chloride products taking waste printing nickel screens as raw materials

A technology of nickel chloride and nickel mesh, applied in the direction of nickel halide, etc., can solve the problem of inability to produce chemical reactions, and achieve the effect of broadening the types of raw materials

Inactive Publication Date: 2017-02-15
JINCHUAN GROUP LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the perspective of chemical reaction, although the nickel mesh and hydrochloric acid leaching reaction can produce nickel chloride solution, the surface of the waste printed nickel mesh is stuck with photosensitive glue, and the nickel mesh is isolated from hydrochloric acid, so it cannot produce chemical reactions. Nickel mesh release treatment

Method used

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  • Method used for producing nickel chloride products taking waste printing nickel screens as raw materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A kind of method that is raw material production nickel chloride product with waste printing nickel mesh, comprises the following steps:

[0014] a. Configure printing nickel mesh release agent

[0015] Add 30kg of hydrogen peroxide, 8kg of sodium dodecylsulfonate, 4kg of fatty alcohol polyoxyethylene ether (Pingpingjia o-20), 8kg of ethanol, and 12.5kg of water into the stripping agent configuration kettle, start mechanical stirring and mixing, and add hydroxide Nickel adjusts the pH value of the release agent to 12.5. After the mixture is uniform and the pH value is 12.5, the preparation of the release agent is completed.

[0016] b. Printed nickel mesh stripping

[0017] Take 5kg of the nickel mesh to be stripped and completely immerse it in the stripping agent, raise the temperature to 70°C at a constant speed and keep it warm to remove the photosensitive adhesive for 2 hours. After 2 hours, take out the nickel mesh and wash it with high-pressure water.

[0018] c...

Embodiment 2

[0026] Embodiment 2 step process is the same as embodiment 1, specifically:

[0027] The difference between step a and Example 1 is that the pH value of the release agent is controlled to be 12.3.

[0028] The difference between step b and Example 1 lies in that the temperature is controlled at 75° C. and the time is 2.5 h during the stripping process.

[0029] The difference between step c and Example 1 is that the temperature of the leaching process is controlled at 80° C., and the pH of the leaching solution is 4.0.

[0030] The difference between step d and Example 1 is that adding Ni ion concentration to the organic after saponification is the nickel chloride solution of 85.5g / L to produce nickel soap, and the organic after the nickel soap is mixed with the nickel mesh leaching solution for extraction. After the 7-stage countercurrent extraction of the extraction box, the extraction ratio is O:A=2:1. After the extraction, the loaded organic and 6.8mol / L hydrochloric acid...

Embodiment 3

[0034] Embodiment 2 step process is the same as embodiment 1, specifically:

[0035] The difference between step a and Example 1 is that the pH value of the release agent is controlled to be 13.

[0036] The difference between step b and Example 1 is that the temperature is controlled at 80° C. and the time is 2.8 h during the stripping process.

[0037] The difference between step c and Example 1 is that the temperature of the leaching process is controlled at 78° C., and the pH of the leaching solution is 3.6.

[0038] The difference between step d and Example 1 is that adding Ni ion concentration to the organic after saponification is the nickel chloride solution of 88g / L to prepare nickel soap, and the organic after the nickel soap is mixed with the nickel mesh leaching solution for extraction, after The 7-stage countercurrent extraction of the extraction box, the extraction ratio O:A=1.5:1, the extracted loaded organic and 7mol / L hydrochloric acid are regenerated by the ...

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Abstract

The invention relates to a method used for producing nickel chloride products taking waste printing nickel screens as raw materials, and belongs to the field of hydrometallurgy. According to the method, cyclic utilization of waste printing nickel screens is realized, and the waste printing nickel screens are taken as the raw materials to produce the nickel chloride products. The mehod comprises following steps: the waste printing nickel screens are processed with a release agent so as to remove photoresist on the surfaces of the waste printing nickel screens, and then are subjected to leaching treatment with industrial hydrochloric acid; an obtained leached solution is subjected to extraction with P507 extraction agent so as to remove impurities until the content of impurities in an obtained extraction raffinate is capable of satisfying requirements on the content in nickel chloride product production; and the extraction raffinate is subjected to evaporation, crystallization, centrifugalization, and drying so as to obtain the qualified nickel chloride products. The method is capable of realizing cyclic utilization of the waste printing nickel screens, and broadening the sources of raw materials used for producing the nickel chloride products.

Description

technical field [0001] The invention belongs to the field of hydrometallurgy, and relates to a method for producing nickel chloride products by using waste printed nickel screens as raw materials. Background technique [0002] In the production of nickel chloride products, it is generally necessary to produce nickel chloride solution first, then evaporate and crystallize the nickel chloride solution, and finally obtain nickel chloride products. There are many ways to produce nickel chloride solution, such as dissolving electrolytic nickel with hydrochloric acid, leaching nickel concentrate with chlorine gas, or dissolving nickel hydroxide with hydrochloric acid. The adoption of various production methods is mainly based on the raw materials used determined by their physical and chemical properties. Nickel mesh is leached with hydrochloric acid after stripping to produce nickel chloride products, which can recycle waste nickel mesh and turn waste into treasure, which meets t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G53/09
CPCC01G53/09
Inventor 赵德任伟陈胜维明键伟张国勇陈士强孙正德
Owner JINCHUAN GROUP LIMITED
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