Rapid environment-friendly deplating solution

A stripping solution and environmental protection technology, applied in the field of rapid environmental protection stripping solution, can solve the problems of inability to use, damage to the ceramic package shell, and high toxicity, and achieve the effects of reducing costs and reducing stripping time.

Inactive Publication Date: 2020-11-17
FUJIAN MINHANG ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing stripping solutions, especially for gold, use potassium cyanide to directly strip gold, and potassium cyanide is a very toxic substance, so in the process of stripping, it is necessary to Employees wear gas masks and protective clothing, and need a closed space for deplating. After the gold deplating is completed, the remaining waste liquid is also very toxic and requires special treatment. and the existing ceramic packaging shell not only includes gold, but also nickel and silver. Deplating has not been carried out for these two metals. After the above-mentioned deplating, the ceramic packaging shell is damaged. not available

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] The present embodiment is used for withdrawing gold or silver or nickel, and specifically includes the following steps:

[0010] Configure the deplating solution, get an appropriate amount of water, choose 60g gold dressing agent per liter of water, and 30g anti-staining salt, fully react after it is mixed, filter out the insoluble matter, move to the deplating tank for use, the deplating The pH of the liquid is 12.

[0011] Place the plated piece to be deplated in the rolling basket, the plated piece is a ceramic package shell, and the ceramic package shell is plated with 2 micron thick gold;

[0012] Place the plated parts in the rolling basket, immerse the rolling basket in the deplating solution, and after the deplating solution submerges the plated parts, roll slowly and fully contact the deplating solution. After 3 to 10 minutes, the gold can be deplated After completion, take out the plated parts and add an appropriate amount of zinc powder to the liquid to obta...

Embodiment 2

[0015] The present embodiment is used for withdrawing gold or silver or nickel, and specifically includes the following steps:

[0016] Configure the deplating solution, get an appropriate amount of water, choose 75g of gold mineral dressing agent per liter of water, and 37.5g of anti-staining salt, fully react after it is mixed, filter out the insoluble matter, and move to the deplating tank for use. The pH of the bath is 12.

[0017] Place the plated piece to be deplated in the rolling basket, the plated piece is a ceramic package shell, and the ceramic package shell is plated with 2 micron thick gold;

[0018] Place the plated parts in the rolling basket, immerse the rolling basket in the deplating solution, and after the deplating solution submerges the plated parts, roll slowly and fully contact the deplating solution. After 3 to 10 minutes, the gold can be deplated After completion, take out the plated parts and add an appropriate amount of zinc powder to the liquid to ...

Embodiment 3

[0021] The present embodiment is used for withdrawing gold or silver or nickel, and specifically includes the following steps:

[0022] Configure the deplating solution, get an appropriate amount of water, choose 90g of gold dressing agent per liter of water, and 45g of anti-staining salt, fully react after it is mixed, filter out the insoluble matter, move to the deplating tank for use, the deplating The pH of the liquid is 12.

[0023] Place the plated piece to be deplated in the rolling basket, the plated piece is a ceramic package shell, and the ceramic package shell is plated with 2 micron thick gold;

[0024] Place the plated parts in the rolling basket, immerse the rolling basket in the deplating solution, and after the deplating solution submerges the plated parts, roll slowly and fully contact the deplating solution. After 3 to 10 minutes, the gold can be deplated After completion, take out the plated parts and add an appropriate amount of zinc powder to the liquid t...

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PUM

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Abstract

The invention provides a rapid environment-friendly deplating solution. The rapid environment-friendly deplating solution comprises a gold beneficiation agent, anti-staining salt and water, wherein the ratio of the gold beneficiation agent to the anti-staining salt is 2 to 1, the rapid environment-friendly deplating solution can be used for removing gold, silver and nickel, the deplating solutionhas no strong toxicity and does not need a specific room, the cost of an enterprise is greatly reduced, and the deplating time is greatly reduced.

Description

technical field [0001] The invention relates to a fast and environment-friendly deplating solution. Background technique [0002] Existing stripping solutions, especially for gold, use potassium cyanide to directly strip gold, and potassium cyanide is a very toxic substance, so in the process of stripping, it is necessary to Employees wear gas masks and protective clothing, and need a closed space for deplating. After the gold deplating is completed, the remaining waste liquid is also very toxic and requires special treatment. and the existing ceramic packaging shell not only includes gold, but also nickel and silver. Deplating has not been carried out for these two metals. After the above-mentioned deplating, the ceramic packaging shell is damaged. unavailable. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a fast and environment-friendly deplating solution, which can quickly perform deplating, and the deplat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F1/40
CPCC23F1/40
Inventor 邹琦罗丽强王羽
Owner FUJIAN MINHANG ELECTRONICS
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