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Process for electrolyzing high nickel-copper anode by adopting periodic reverse current

A reverse current, periodic technology, applied in the direction of photographic technology, electrolytic process, electrolytic components, etc.

Active Publication Date: 2021-11-16
江西新金叶实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is necessary to use low-impurity anode plates, strict management, careful operation, and increased labor intensity to ensure stable product quality.

Method used

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  • Process for electrolyzing high nickel-copper anode by adopting periodic reverse current
  • Process for electrolyzing high nickel-copper anode by adopting periodic reverse current
  • Process for electrolyzing high nickel-copper anode by adopting periodic reverse current

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The specific operation process of the process of periodic reverse current electrolysis of high nickel copper anode plate is as follows:

[0042] 1) Put the high-nickel copper anode plate with clean surface and no oil stain into the electrolytic cell, then put the modified cathode plate into the cathode area of ​​the electrolytic cell, add electrolyte, connect the power supply for electrolysis;

[0043] 2) Among them, one cycle of the current is 205s forward current, 6s no current time, 9s reverse current time. When no current is being carried out, microwave vibration is used to oscillate the solution particles in the electrolytic cell evenly;

[0044] 3) During the electrolysis process, the temperature of the electrolyte is kept at 64°C. At the same time, after electrolysis of a high-nickel copper anode sheet, the electrolyte is circulated and replaced, and the recycled electrolyte is recycled to collect the metal ions in it. ;

[0045] 4) When the thickness of a singl...

Embodiment 2

[0068] The specific operation process of the process of periodic reverse current electrolysis of high nickel copper anode plate is as follows:

[0069] 1) Put the high-nickel copper anode plate with clean surface and no oil stain into the electrolytic cell, then put the modified cathode plate into the cathode area of ​​the electrolytic cell, add electrolyte, connect the power supply for electrolysis;

[0070] 2) Among them, one cycle of the current is 200s forward current, 8s no current time, 8s reverse current time. When no current is being carried out, microwave vibration is used to oscillate the solution particles in the electrolytic cell evenly;

[0071] 3) During the electrolysis process, the temperature of the electrolyte is kept at 66°C. At the same time, after electrolysis of a high-nickel copper anode piece, the electrolyte is circulated and replaced, and the recycled electrolyte is recycled to collect the metal ions in it. ;

[0072] 4) When the electrolysis thickne...

Embodiment 3

[0095] The specific operation process of the process of periodic reverse current electrolysis of high nickel copper anode plate is as follows:

[0096] 1) Put the high-nickel copper anode plate with clean surface and no oil stain into the electrolytic cell, then put the modified cathode plate into the cathode area of ​​the electrolytic cell, add electrolyte, connect the power supply for electrolysis;

[0097] 2) Among them, one cycle of the current is 210s forward current, 5s no current time, 10s reverse current time, when there is no current, microwave vibration is used to oscillate the solution particles in the electrolytic cell evenly;

[0098] 3) During the electrolysis process, the temperature of the electrolyte is kept at 62°C. At the same time, after the electrolysis of a high-nickel copper anode sheet, the electrolyte is circulated and replaced, and the recycled electrolyte is recycled to collect the metal ions in it. ;

[0099] 4) When the electrolysis thickness of a...

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Abstract

The invention provides a process for electrolyzing a high nickel-copper anode by adopting periodic reverse current, wherein the periodic reverse current can guarantee the maximum use efficiency of electrolytic copper, a cathode copper sheet is modified, impurities and an oxidation film on the surface of the copper sheet are reduced, a treatment agent contains oxalic acid components, nickel ions can be complexed through oxalic acid, the concentration of the nickel ions in a solution is reduced, the purity of the electrolyzed cathode copper is improved, and a circulated electrolyte is circularly purified, so that the waste of resources is reduced. A leveling agent can control the growth of crystal grains, so that the crystal grains are refined, and the surface of the produced cathode copper is smoother. Meanwhile, the reduction effect of copper ions can be effectively promoted, and the electrolysis progress is accelerated. A brightening agent can improve the brightness of a cathode copper electrode plate and effectively promote anode mud to fall off, the anode polarization phenomenon is avoided, the electrolysis speed is increased, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the field of metal processing, in particular to a process for electrolyzing high-nickel copper anodes with periodic reverse currents. Background technique [0002] In the production of electrolytic copper, the current density of the power supply of the conventional electrolytic method is generally 240-280A / m 2 scope. In order to increase the output of electrolytic copper under the same number of electrolytic cells and the same plant area, the current density is increased. In recent years, with the price increase of electrolytic copper in the market, some electrolytic copper manufacturers have increased the current density to 300A / m 2 above. However, it is necessary to use low-impurity anode plates, strict management, careful operation, and increased labor intensity to ensure stable product quality. When electrolytic copper is produced by conventional electrolytic methods, the current density exceeds the allowable range, esp...

Claims

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Application Information

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IPC IPC(8): C25C1/12C25C7/06
CPCC25C1/12C25C7/06Y02P10/20
Inventor 林知奎李立凯付豪陈楠周川
Owner 江西新金叶实业有限公司
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