The high nickel copper anode adopts the process of periodic reverse current electrolysis

A reverse current, periodic technique used in metalworking

Active Publication Date: 2022-07-12
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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  • The high nickel copper anode adopts the process of periodic reverse current electrolysis
  • The high nickel copper anode adopts the process of periodic reverse current electrolysis
  • The high nickel copper anode adopts the process of periodic reverse current electrolysis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0042] 1) Put the high-nickel copper anode plate with clean surface without oil pollution into the electrolytic cell, then put the modified cathode plate into the cathode area of ​​the electrolytic cell, add the electrolyte, and connect the power source for electrolysis;

[0043] 2) One cycle of the current is 205s forward current, 6s no-current time, and 9s reverse current time. During no-current, 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, and at the same time, after the electrolysis of a high nickel-copper anode sheet, the electrolyte is cyclically replaced, and the recycled electrolyte is recycled to collect the metal ions in it. ;

[0045] 4) When the thickness of a single anode ...

Embodiment 2

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

[0069] 1) Put the high-nickel copper anode plate with clean surface without oil pollution into the electrolytic cell, then put the modified cathode plate into the cathode area of ​​the electrolytic cell, add the electrolyte, and connect the power source for electrolysis;

[0070] 2) One cycle of the current is 200s forward current, 8s no-current time, and 8s reverse current time. When no current is performed, 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, and at the same time, after the electrolysis of a high nickel-copper anode sheet, the electrolyte is cyclically replaced, and the recycled electrolyte is recycled to collect the metal ions in it. ;

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

Embodiment 3

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

[0096] 1) Put the high-nickel copper anode plate with clean surface without oil pollution into the electrolytic cell, then put the modified cathode plate into the cathode area of ​​the electrolytic cell, add the electrolyte, and connect the power source for electrolysis;

[0097] 2) One cycle of the current is 210s forward current, 5s no-current time, and 10s reverse current time. When no current is performed, 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, and at the same time, after the electrolysis of a high-nickel copper anode sheet, the electrolyte is cyclically replaced, and the recycled electrolyte is recycled to collect the metal ions in it. ;

[0099] 4) When the electrolysis th...

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Abstract

The invention provides a process for electrolysis of high nickel copper anode by periodic reverse current. Among them, the periodic reverse current can ensure the maximum use efficiency of electrolytic copper. By modifying the cathode copper sheet, the impurities and oxide film on the surface of the copper sheet are reduced. The treatment agent contains oxalic acid, which can be complexed by nickel ions. , reduce the concentration of nickel ions in the solution, improve the purity of the cathode copper after electrolysis, and purify the circulating electrolyte to reduce the waste of resources. The leveling agent can control the growth of grains, refine the grains, and make the surface of the cathode copper produced more flat. At the same time, it can effectively promote the reduction of copper ions and speed up the progress of electrolysis. The brightener can improve the brightness of the cathode copper electrode plate and effectively promote the shedding of anode slime, avoid the occurrence of anode polarization, speed up electrolysis, and improve production efficiency.

Description

technical field [0001] The invention relates to the field of metal processing, in particular to a process for electrolysis of a high-nickel copper anode by periodic reverse current. Background technique [0002] In the production of electrolytic copper, the current density of the power source of the conventional electrolysis 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, as the price of electrolytic copper in the market has risen, some electrolytic copper manufacturers have increased the current density to 300A / m 2 above. However, it is necessary to use anode plates with low impurities, strict management, careful operation, and increased labor intensity to ensure the stability of product quality. In the production of electrolytic copper by conventional electrolysis, the current density exceeds the allowabl...

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 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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