A kind of preparation method of electroplating grade copper sulfate

A copper sulfate, electroplating-grade technology, applied in the preparation of copper sulfate and copper compounds, can solve the problems of environmental pollution and high treatment costs, and achieve the effects of reducing production costs, high economic efficiency, and avoiding waste water discharge.
CN107986317BActive Publication Date: 2022-06-21XIAMEN RUNNER IND CORP
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
XIAMEN RUNNER IND CORP
Publication Date
2022-06-21
Patent Text Reader

Abstract

The invention provides a method for preparing electroplating-grade copper sulfate. The method comprises: using acid copper wastewater as a raw material, absorbing organic matter in acid copper wastewater through chelating resin, and using selective copper ion cation resin to adsorb organic matter in acid copper wastewater Add strong acid to desorb and regenerate the selective copper ion cation resin to obtain a concentrated copper sulfate solution, add hydrogen peroxide to the concentrated copper sulfate solution, and perform weak electrolysis, filtration and adjustment to the concentrated copper sulfate solution after adding hydrogen peroxide. pH and crystallization, copper sulfate crystals were obtained. According to the preparation method of electroplating grade copper sulfate of the present invention, the copper sulfate crystal prepared by it is delicate, has little water content, and high purity, which can reach more than 99.9%, and the method can reduce waste water discharge and treatment cost, environmental protection and emission reduction.
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Description

technical field

[0001] The invention relates to the field of copper salt production technology, in particular to a method for preparing high-purity electroplating-grade copper sulfate by recycling acid copper wastewater. Background technique

[0002] In surface treatment electrodeposition, a large amount of acid copper is used, which produces a large amount of copper salt wastewater every day, which causes environmental pollution and high treatment costs.

[0003] Therefore, it is necessary to provide a new technical solution. SUMMARY OF THE INVENTION

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a preparation method of electroplating-grade copper sulfate, which can reduce waste water discharge and treatment costs, and reduce environmental protection and emission reduction.

[0005] In order to achieve the above object, a kind of preparation method of electroplating grade copper sulfate of the present invention,...

Claims

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