Technology for electrolyzing copper from brown oxide waste liquid

A technology of electrolytic copper and waste liquid, which is applied in the direction of photography process, photography auxiliary process, and process efficiency improvement, etc., can solve the problems affecting the generation of electrolytic copper, and achieve the effect of reducing COD

Inactive Publication Date: 2012-07-11
SHENZHEN RUN SUN CHEM TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] Browning waste liquid is the waste liquid produced in the circuit board browning process, which contains about 15-25g/liter of copper ions and a large amount of organic matter that is difficult to decompose. If

Method used

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Embodiment Construction

[0011] In order to better understand the technical solution of the present invention, the following describes the embodiments provided by the present invention in detail.

[0012] An embodiment of the present invention provides a process for electrolyzing copper from browning waste liquid, which includes the steps of:

[0013] A. Collect browning waste liquid;

[0014] The browning waste liquid generated in the production is collected centrally.

[0015] B, adding polyvinyl alcohol and ammonium cerium sulfate to the browning waste liquid and stirring to obtain a stirred solution;

[0016] In order to decompose and remove the organic matter in the browning waste liquid, it can make the electroplated copper dense, in which: the role of polyvinyl alcohol is to make the electrolytic copper uniform and dense; cerium ammonium sulfate is used to destroy and crack benzotriazole and methylbenzene The benzene ring in the triazole.

[0017] C, the solution after the stirring is discha...

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Abstract

The invention provides technology for electrolyzing copper from brown oxide waste liquid, which includes steps: A collecting brown oxide waste liquid; B adding polyvinyl alcohol and ceric ammonium sulfate into the brown oxide waste liquid, stirring and obtaining stirred solution; C discharging stirred solution to an electro clean; and D electrolyzing the copper from the solution in the electro clean. By means of the technology for electrolyzing copper from the brown oxide waste liquid enables the copper to be electrolyzed from the waste liquid, a black film matter can not be generated on a cathode, the electrolyzed copper is attractive and flat and has certain market value, and chemical oxygen demand (COD) value in the waste liquid is greatly reduced.

Description

technical field [0001] The invention relates to the technical field, in particular to a process for electrolyzing copper from browning waste liquid. Background technique [0002] Browning waste liquid is the waste liquid produced in the circuit board browning process, which contains about 15-25g / liter of copper ions and a large amount of organic matter that is difficult to decompose. If the browning waste liquid is electrolyzed according to the process provided by the existing technology Due to the influence of organic matter, the copper in the electrolytic copper will greatly affect the generation of electrolytic copper. Contents of the invention [0003] The invention provides a process for electrolyzing copper from browning waste liquid, which can electrolyze copper from waste liquid and the electrolyzed copper is beautiful and smooth. [0004] In order to achieve the above object, the present invention provides the following technical solutions: [0005] A process fo...

Claims

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Application Information

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IPC IPC(8): C25C1/12C02F1/62C02F1/461
CPCY02P10/20
Inventor 帅和平
Owner SHENZHEN RUN SUN CHEM TECH
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