Clean production technology of electrolytic copper by directly electrolyzing and refining waste impure copper

Abstract

The invention discloses a clean production technology of electrolytic copper by directly electrolyzing and refining waste impure copper. In the provided technology, waste impure copper is taken as the raw material and then placed in an anodic framework, the raw material is taken as the anode, a permanently-stainless cathode plate or pure copper sheet is taken as the cathode, and finally an acidic copper sulfate solution is taken as the electrolyte to carry out direct electrolysis and refining on the waste impure copper. The framework-type anode is different from the integral anode, and if electrolysis is carried out in a framework type anode, new waste copper particles can be added into the framework after the waste copper particles in the framework are dissolved, so the electrolysis operation does not need to be stopped, and the electrolysis production can be continuously operated. Moreover, the situation of residual anode will not happen when electrolysis is carried out in a framework type anode. The refining process is eliminated, and the electrolysis operation on casted anode is improved at the same time.

Description

[0001] technical field [0002] The invention belongs to a clean production process, and in particular relates to a clean production process for direct electrolytic refining of electrolytic copper by scrap miscellaneous copper. [0003] Background technique [0004] The existing scrap copper recycling process has problems such as long production process, low recovery rate, large investment, high energy consumption, low utilization level, and large environmental pollution. Therefore, research and development of direct electrolysis of scrap copper without smelting and casting process Refining clean production process has become an urgent task. [0005] Contents of the invention [0006] In order to overcome the above-mentioned defects in the prior art, the object of the present invention is to provide a clean production process for direct electrolytic refining of copper scrap, which is simple and convenient to operate. [0007] The waste miscellaneous copper direct electr...

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Problems solved by technology

[0004] The existing scrap copper recycling process has problems such as long production process, low recovery rate, large investment, high energy consumption, low utilization level, and large environmental pollution. Therefore, research and development of direct electrolysis of scrap copper without smelting and casting process Refining clean production processes becomes an urgent task