A device and operation method for copper electrolysis or copper electrowinning

A technology of copper electrolysis and copper electrolysis, which is applied in the field of copper electrolysis, can solve the problems of not being able to effectively reduce concentration polarization

Active Publication Date: 2018-03-23
YANGGU XIANGGUANG COPPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the relatively mature electrolysis process is the permanent stainless steel cathode electrolysis technology, but the circulation method of the electrolyte is to enter the liquid at the bottom of the electrolytic cell and overflow at the upper part of both ends, which still cannot effectively reduce the phenomenon of concentration polarization.

Method used

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  • A device and operation method for copper electrolysis or copper electrowinning
  • A device and operation method for copper electrolysis or copper electrowinning
  • A device and operation method for copper electrolysis or copper electrowinning

Examples

Experimental program
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Effect test

Embodiment 1

[0041] 53 pieces of copper anodes and 52 pieces of stainless steel cathodes are installed in the electrolytic cell, and the stainless steel box in the electrolytic cell is connected through a liquid inlet pipe, and the electrolyte enters the stainless steel box in the electrolytic cell through the liquid supply pipe; at the bottom of the electrolytic cell The stainless steel box is fixed at a height of 500mm. The liquid outlet nozzle is located at the lower part of the box. Two liquid outlet nozzles are evenly distributed on both sides of the bottom of each cathode plate. The inner diameter of the nozzle is Φ8mm and the outer diameter is Φ14mm; the electrolyte passes through the outlet The liquid nozzle sprays out at a flow rate of 0.4m / s, and the flow rate of each liquid nozzle is 0.85L / min; after the electrolyte is sprayed out, it flows back through the overflow ports reserved at the two long side grooves on the upper part of the electrolytic cell. Gather to the main liquid r...

Embodiment 2

[0044] The application of copper electrowinning can be used for the purification, decopper and impurity removal of electrolyte

[0045] With the progress of the electrolysis process, copper and impurity elements are continuously enriched, and a certain amount of waste electrolyte needs to be processed every day for decopper and impurity removal; the waste electrolyte of the main system is pumped to the electrowinning tank of the cleaning process for decopper , Removal of impurities.

[0046] Put 24 insoluble lead anode plates into the electrowinning tank as anodes for copper electrowinning, and pack 23 stainless steel cathode plates or cathodes whose residues are copper electrowinning (each group of electrowinning tanks has 10 slots in total, and the first 3 slots are loaded Stainless steel cathode plate, the last 7 tanks are filled with the residual electrode after electrolysis as the cathode of copper electrowinning), the waste electrolyte of the main system enters the stain...

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Abstract

The invention provides a device for copper electrolysis or copper electrodeposition, and a running method. The device comprises an electrolysis bath body or an electrodeposition bath body, a plurality of cathode plates and a plurality of anode plates, wherein the cathode plates and the anode plates are arranged in the electrolysis bath body or the electrodeposition bath body at intervals; a liquid inlet device is arranged in one sidewall in the length lateral directions of the electrolysis bath body or the electrodeposition bath body, a plurality of liquid outlet nozzles are arranged in the liquid inlet device, and the liquid outlet nozzles are arranged among the cathode plates and among the anode plates respectively; and grooves are arranged in the tops of bath walls in the two length lateral directions of the electrolysis bath body or the electrodeposition bath body, the bottom surface of each groove is parallel to the bottom surface of the bath body, and an overflow port is arranged in the inner sidewall of each groove. According to the invention, through arrangement of the liquid inlet device on one sidewall of the electrolysis bath body or the electrodeposition bath body, and arrangements of the grooves in the tops in the two length lateral directions, the phenomenon of concentration polarization can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of copper electrolysis, in particular to a device and operation method for copper electrolysis or copper electrowinning. Background technique [0002] At present, the electrolysis process of non-ferrous metal copper metallurgy generally adopts permanent stainless steel cathode electrolysis technology, and the current density of this technology can reach 280-330A / m 2 , which has the characteristics of high current efficiency, high yield, good product quality and high pass rate of high-purity cathode copper. However, with the continuous expansion of copper smelting enterprises and the rising prices of raw materials in recent years, the competition in the smelting industry has become increasingly fierce, and the processing fees of the industry have also continued to shrink. Therefore, expanding the scale of copper electrolytic production, improving copper electrolytic refining technology, and increasing labor ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25C1/12C25C7/06
CPCC25C1/12C25C7/06Y02P10/20
Inventor 杨家庭魏栋梁源
Owner YANGGU XIANGGUANG COPPER
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