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A method for direct electrolytic refining of metal scrap

An electrolytic refining and metal technology, applied in the direction of electrolytic process, electrolytic components, electrodes, etc., can solve the problems of increasing production costs, exhaust gas pollution of the atmosphere, etc., and achieve the effect of cost saving, energy saving and cost reduction

Active Publication Date: 2017-12-05
上海珮钧科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Melting casting requires a large amount of coke, which produces waste gas that pollutes the atmosphere and increases production costs
Although there are also some methods of refining metals in the prior art, such as the patent application No. 200610163078.0 disclosed by the Chinese Patent Office on 2007.09.05, the invention name is "Copper Electrolytic Refining Method", which discloses a method for refining metal copper , although this method can prevent passivation, suppress the formation of suspended anode slime in the electrolyte, and produce high-purity electrolytic copper, it still needs to melt and cast the copper into an anode plate before electrolysis

Method used

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  • A method for direct electrolytic refining of metal scrap
  • A method for direct electrolytic refining of metal scrap
  • A method for direct electrolytic refining of metal scrap

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] refer to figure 1 , a method for direct electrolytic refining of metal scrap provided in this embodiment is as follows: the anode container 2 is provided with a channel 3, and the channel 3 is used for the circulation of the electrolyte during electrolysis. The anode container 2 is made of insoluble anode material, and the anode container 2 can be connected to a power supply at the same time during electrolysis, so as to improve the conduction effect and reduce the resistance. The metal scrap 1 is placed in the anode container 2, and is connected with the positive pole of the electrolysis power supply through the conductive electrode 4 during electrolysis.

Embodiment 2

[0036] refer to figure 2 A method for direct electrolytic refining of metal scraps provided in this embodiment is as follows: the anode container 2 is provided with a channel 3, and the channel 3 is used for the circulation of the electrolyte during electrolysis. An anode mud bag 5 is sleeved on the lower part of the anode container 2, and the anode mud bag 5 is used to collect the generated anode slime. The metal scrap 1 is placed in the anode container 2. During the electrolysis process, the metal scrap 1 will be continuously consumed and reduced, and then added continuously. In this way, the anode slime produced will continue to increase. By setting the anode mud bag 5 in the present invention, continuous electrolysis can be realized, and the time interval for cleaning the electrolytic cell can be prolonged, thereby improving work efficiency and product quality.

Embodiment 3

[0038] refer to image 3 A method for direct electrolytic refining of metal scraps provided in this embodiment is as follows: the anode container 2 is provided with a channel 3, and the channel 3 is used for the circulation of the electrolyte during electrolysis. The anode container 2 is made of insoluble anode material, and the anode container 2 can be connected to a power supply at the same time during electrolysis, so as to improve the conduction effect and reduce the resistance. Install insulating net 6 on the outside of the anode container 2, the pole spacing between the anode container and the cathode (not shown in the figure) can be shortened by the insulating net 6, but it will not cause a short circuit, thereby reducing the cell voltage and improving the electrolysis efficiency. The metal scrap 1 is placed in the anode container 2 and connected with the conductive electrode 4 to carry out electrolysis.

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Abstract

The invention discloses a method for performing direct electrorefining on metal crushed aggregates. The method comprises the following steps: putting the metal crushed aggregates in an anode vessel, wherein the vessel wall of the anode vessel is provided with a porous channel through which an electrolyte can flow; and putting the anode vessel into an electrolytic cell, connecting the metal crushed aggregates with a positive electrode of an electrolysis electric supply, connecting a cathode with the negative electrode of the electrolysis electric supply, and performing electrolysis so as to directly obtain refined metal products. The method is used for recycling and refining the metal crushed aggregates; a direct electrolysis method is adopted, so that a melting production link is avoided; and the method has the advantages of energy conservation, cost reduction, exhaust emission reduction and the like.

Description

technical field [0001] The invention relates to a metal extraction technology, in particular to a method for direct electrolytic refining of metal scraps. Background technique [0002] Now with the continuous popularization of electrical appliances, the amount of scrap metal is also increasing, but at present, in the refining process of refining metal scraps, the metal must first be melted and cast into anode plates, and then electrolyzed. Melting casting requires a large amount of coke, which produces waste gas that pollutes the atmosphere and increases production costs. Although there are also some methods of refining metals in the prior art, such as the patent application No. 200610163078.0 disclosed by the Chinese Patent Office on 2007.09.05, the invention name is "Copper Electrolytic Refining Method", which discloses a method for refining metal copper Although this method can prevent passivation, suppress the formation of suspended anode slime in the electrolyte, and p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25C1/00C25C7/00C25C7/02
CPCY02P10/20
Inventor 王武生
Owner 上海珮钧科技有限公司