A kind of treatment method of waste copper sulfate electrolyte

A treatment method, copper sulfate technology, applied in the field of impurities, can solve the problems of rising operating costs, small electrolyte circulation, complex operation, etc., achieve the effect of safe and environmentally friendly working environment, enhance market competitiveness, and shorten the process flow

Inactive Publication Date: 2011-11-30
JINCHUAN GROUP LIMITED
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Problems solved by technology

[0002] At present, the purification of waste copper sulfate electrolyte in the copper electrolysis process mostly adopts the traditional induced decopper method to remove copper and remove arsenic, antimony, bismuth and other impurities. This process has obvious disadvantages: ① lead anode plate is used as the anode, the cell voltage is high, and the energy consumption of electrolysis is large; ② the current density and current efficiency are low, and the removal rate of impurities such as arsenic, antimony and bismuth is not high; ③ the output of dangerous solids The amount of waste black copper slag is large, and the on-site stacking will cause pollut

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  • A kind of treatment method of waste copper sulfate electrolyte
  • A kind of treatment method of waste copper sulfate electrolyte

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[0026] A treatment method for waste copper sulfate electrolyte, the waste copper sulfate electrolyte from the electrolysis system is in the electrolytic cell of the first electrowinning module block and the second electrowinning module group under the action of 1# and 2# delivery pumps , The electrolyte is decoppered under the action of high current density and high circulation flow in the cylinder to produce standard cathode copper. After the concentration of copper ions in the liquid after decoppering of the second electrowinning module meets the technical requirements, the flow is shunted, and the liquid after all the way of decoppering flows directly into the third electrowinning module group, and the deep decopper is carried out at a higher current density and a higher circulation flow rate. Copper, the concentration of copper ions in the liquid after decoppering of the third electrowinning module group meets the technical requirements, and then enters into the fourth elec...

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Abstract

A method for treating waste copper sulfate electrolyte relates to a method for removing copper and removing impurities such as arsenic, antimony and bismuth from waste copper sulfate electrolyte in a copper electrolysis process. It is characterized in that the steps of its treatment process include: (1) electrowinning and decoppering the waste copper sulfate electrolyte to obtain standard cathode copper; (2) performing deep electrowinning and decoppering the solution after step (1) decoppering; 3) Electrodeposition and removal of impurities from the solution after deep electrowinning copper removal in step (2). The method of the invention can efficiently separate copper from waste copper sulfate electrolyte, produce standard cathode copper, and can effectively remove impurities such as arsenic, antimony and bismuth. Compared with the traditional induced decopper method, it can greatly reduce the amount of black copper slag, reduce the copper content in black copper slag, increase the direct recovery rate of copper, reduce the production cost of copper, and significantly improve the economic and environmental benefits of the enterprise.

Description

technical field [0001] A method for treating waste copper sulfate electrolyte relates to a method for removing copper and removing impurities such as arsenic, antimony and bismuth from waste copper sulfate electrolyte in a copper electrolysis process. technical background [0002] At present, the purification of waste copper sulfate electrolyte in the copper electrolysis process mostly adopts the traditional induced decopper method to remove copper and remove arsenic, antimony, bismuth and other impurities. This process has obvious disadvantages: ① lead anode plate is used as the anode, the cell voltage is high, and the energy consumption of electrolysis is large; ② the current density and current efficiency are low, and the removal rate of impurities such as arsenic, antimony and bismuth is not high; ③ the output of dangerous solids The amount of waste black copper slag is large, and the on-site stacking will cause pollution to the surrounding environment. The high copper c...

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Application Information

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IPC IPC(8): C25C1/12C25C7/00C02F1/461C02F101/20C02F103/16
CPCY02P10/20
Inventor 陈自江蒲彦雄马玉天姚辉陈国梁别良伟王文龙赵宏朱杰
Owner JINCHUAN GROUP LIMITED
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