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Device for treating waste brownification liquid by electro-catalysis

A technology of browning liquid and electrocatalysis, which is applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, process efficiency improvement, etc., can solve the high cost of waste palming liquid treatment, low copper recovery rate, etc. problem, to achieve the effect of reducing overall cost, improving recovery rate and reducing cost

Inactive Publication Date: 2015-06-24
张逸
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a device for electrocatalytically treating waste browning liquid to solve the technical problems of high cost of waste browning liquid treatment and low copper recovery rate

Method used

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  • Device for treating waste brownification liquid by electro-catalysis

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manners created by the present invention are not limited to this.

[0031] Such as figure 1 As shown, a device for electrocatalytic treatment of waste browning liquid includes a degradation tank, an electrolysis tank, an extraction tank, and a back extraction tank. The degradation tank, the electrolysis tank, the extraction tank, and the back extraction tank are sequentially connected through a pipeline. The degradation tank A cationic catalytic tank with strong oxidation ability is arranged inside, and a high oxygen evolution potential anode and a low copper evolution potential cathode are arranged in the electrolytic tank.

[0032] Among them: the extraction tank includes multiple extraction sub-tanks used for staged extraction.

[0033] The extraction sub-tank is a P204 extraction sub-tank, and the back extraction tank is a sulfuric acid ...

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Abstract

The invention discloses a device for treating waste brownification liquid by electro-catalysis. The device is characterized by comprising a degradation tank, an electrolytic bath, an extraction tank and a back-extraction tank, wherein the degradation tank, the electrolytic bath, the extraction tank and the back-extraction tank are sequentially communicated with one another by pipelines; a cationic catalysis tank with high oxidation capability is arranged inside the degradation tank; an anode with high oxygen evolution potential and a cathode with low copper separation potential are arranged inside the electrolytic bath. By selecting a cationic catalyst with the high oxidation capability, the device disclosed by the invention has the advantage of improving the oxidative degradation capability on an organic additive and the release degree of copper ions in the waste brownification liquid so that the recycle rate of copper in the waste brownification liquid is increased.

Description

Technical field [0001] The invention relates to a device for processing waste browning liquid, in particular to a device for electrocatalyzing waste browning liquid. Background technique [0002] The waste browning liquid comes from the browning treatment process of printed circuit boards and is the result of the failure of the browning liquid. In order to meet the increasingly lightweight and portable needs of electrical equipment, printed wire boards are developing in the direction of refined and integrated multilayer circuit boards. In the multi-layer circuit board pressing process, the inner core board in the multilayer circuit board must be browned in advance to improve the bonding force between the inner core boards. At present, during the browning process in this industry, the surface of the inner core copper foil is micro-etched by the sulfuric acid and hydrogen peroxide in the browning solution to form a rough surface, and then with the participation of organic additive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06C25C1/12
CPCY02P10/20
Inventor 张逸
Owner 张逸
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