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Electrolysis plant for electrolytic refining of metals

An electrolytic device and metal technology, applied in the direction of process efficiency improvement, photographic process, instruments, etc., can solve the problems of effect limitation, achieve the effects of reducing cell voltage, improving current efficiency, and reducing DC power consumption

Inactive Publication Date: 2017-04-05
EAST CHINA UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, although a certain effect can be obtained, its effect is still subject to certain restrictions.

Method used

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  • Electrolysis plant for electrolytic refining of metals
  • Electrolysis plant for electrolytic refining of metals
  • Electrolysis plant for electrolytic refining of metals

Examples

Experimental program
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Embodiment

[0036] according to figure 2 Constitute an electrolysis device for preparing electrolytic copper, wherein the electrode 1' (anode) is a metal copper plate with a copper content of 98.5wt% to 99.5wt% (copper needs to be purified), and the materials of the auxiliary electrodes 2 and 3 around it are the same as the anode;

[0037] Electrode 1 (cathode) is a metal copper plate with a copper content of 99.997wt% or more, and the surrounding auxiliary electrodes 2' and 3' are made of the same material as the cathode; the distance between the anode and the cathode is 5cm;

[0038] When the power is turned on, the cathode and the anode are negatively charged and positively charged respectively. Due to the mutual repulsion of the same charges, the sides of electrodes 2 and 3 facing the cathode are respectively positively charged (abbreviated as "positive charge side"). The other sides of electrodes 2 and 3 are respectively negatively charged (abbreviated as "negative charge side");

[...

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Abstract

The invention relates to an electrolysis device suitable for electrolyzing refined metals. The electrolysis device comprises an electrolysis bath, an electrolyte and a center electrode connected with a power supply, and is characterized in that a plurality of auxiliary electrodes made from the same material as the center electrode are arranged on the periphery of the center electrode; the auxiliary electrodes are arranged in pairs on the periphery of the center electrode; the auxiliary electrodes in each pair are mutually parallel to the center electrode and are connected through a conducting wire. The electrolysis device with a single power supply and multiple pairs of electrodes replaces a conventional electrolysis device with a single power supply and a pair of electrodes to electrolyze refined metals, not only can reduce bath voltage, but also can increase the current efficiency, and thus remarkably reduces the consumption of direct current.

Description

technical field [0001] The invention relates to an electrolytic device suitable for electrolytic refining of metals, in particular to an electrolytic device suitable for electrolytic refining of copper. Background technique [0002] So far, the refining process of metal copper (Cu) mainly includes "electrolytic refining method" and "electrodeposition method". In comparison, "electrolytic refining method" is more commonly used in refining Cu. [0003] The electrolytic refining of Cu consists of two steps: (1) the anode plate containing 98.5% to 99.5% Cu is made of copper sulfate (CuSO 4 ) and sulfuric acid (H 2 SO 4 ) dissolved in the electrolyte solution; (2) Cu 2+ At the cathode it is reduced to metallic copper and deposited on the cathode plate. Electrolytic refining can not only produce electrolytic copper, but also realize the separation and recovery of precious metals such as gold and silver. The purity of electrolytic copper produced by it is as high as 99.997%. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25C7/00C25C1/12
CPCY02P10/20
Inventor 钮东方张新胜周玲丽
Owner EAST CHINA UNIV OF SCI & TECH
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