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Preparation method of insoluble anode plate for wastewater reuse

A soluble anode and waste water technology, applied in electrodes, electrolysis process, electrolysis components, etc., can solve the problems of reduced anode service life, anode erosion, and harsh anode working environment, and achieve uniform current distribution, uniform electroplating layer, and a wide range of applications. Effect

Inactive Publication Date: 2016-11-16
SUZHOU JIDAO ELECTRODE TECH
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Problems solved by technology

[0003] Moreover, in the electrolysis process of wastewater recovery, due to the harsh working environment of the anode, it needs to withstand a large current, the composition of the electrolysis wastewater is complex, the erosion of the anode is serious, and the service life of the anode is reduced

Method used

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Embodiment Construction

[0039] The specific embodiments of the present invention will be further described in detail below with reference to the examples. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

[0040] The difference between the preparation method of the insoluble anode plate for wastewater reuse is that the metal plate is used as the substrate to prepare the precious metal coating. During this period, the metal plates used may be titanium plates, zirconium plates, or tantalum plates. Of course, titanium plate is better. Considering the convenience of subsequent use, it can also be divided into several small pieces. At the same time, through the pretreatment process, at least one layer of precious metal coating is applied on the substrate. In order to effectively cope with the subsequent use environment in waste water, the pretreatment process adopted in the present invention includes heat treatment and etching ...

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Abstract

The invention relates to a preparation method of an insoluble anode plate for wastewater reuse. The method is characterized in that a metal plate is selected as a matrix, at least one precious metal coating is prepared, and the matrix is coated with the precious metal coatings through the pretreatment procedure. Meanwhile, the adopted pretreatment procedure comprises a thermal treatment and etching process, and the matrix is of a sheet structure. Thus, a common anode screen can be partitioned into several sections to be processed, and the effects that current distribution of the anode screen is uniform in the electroplating process, and a cathode plate electroplating layer is made to be more uniform are ensured. The method is wide in application range, can meet the preparation demand of crack-free structure dimensionally stable anodes, and can also be applied to electroplating, wet metallurgy and metal foil preparation. The matrix is in the sheet shape, the dimension of the matrix can be designed flexibly according to the use demand, and the matrix can be customized based on actual treatment demands.

Description

technical field [0001] The invention relates to a method for preparing an anode, in particular to a method for preparing an insoluble anode plate for wastewater reuse. Background technique [0002] In the copper recycling process of micro-etching wastewater, electrolytic recovery is widely used in copper recovery of micro-etching wastewater because of its high recovery efficiency. At the same time, in the electrolytic recycling process, the life of the anode titanium mesh directly determines the recycling cost. [0003] In addition, in the electrolysis process of wastewater recovery, due to the harsh working environment of the anode, it needs to withstand a large current, the composition of electrolysis wastewater is complex, the erosion of the anode is serious, and the service life of the anode is reduced. [0004] Therefore, it is particularly critical to find an anode with low price, high recycling efficiency and long service life. [0005] In view of the above-mentione...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C7/02C25D17/10
CPCC25C7/02C25D17/10
Inventor 曾宪兰谢信韦黄金张奇飞
Owner SUZHOU JIDAO ELECTRODE TECH
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