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Method for reducing concentration of lead ions in lead electrolyte

A technology of lead electrolyte and lead ions, which is applied in the field of reducing the concentration of lead ions in lead electrolyte, can solve problems such as enrichment and increase, and achieve the effects of increasing production, improving current efficiency, and reducing current loss

Inactive Publication Date: 2015-01-07
YUNNAN CHIHONG ZINC & GERMANIUM
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Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that lead ions are enriched in the electrolyte in the long-period lead electrolysis process of large plates, and the concentration of lead ions continues to rise, exceeding the reasonable range. It aims to provide a low-cost, easy-to-operate lead-reducing The method of liquid lead ion concentration

Method used

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Embodiment Construction

[0021] The present invention is further described below in conjunction with example.

[0022] A method for reducing lead ion concentration in lead electrolyte, comprising the following steps:

[0023] 1) The anode plate is obtained by vertical mold casting, the size is: 1210×810×27mm, and the cathode starting plate is produced by the cathode sheet making machine, the size is: 1370×840×(0.85±0.05)mm;

[0024] 2) Put the newly made cathode starting plate and anode through the automatic spacing machine, and then put them into the tank, connect to the direct current, and electrolyze for 3.5 to 4 days;

[0025] 3) Take out the cathode sheet, reinstall a new cathode starter sheet, continue electrolysis for 3.5 to 4 days, take out the cathode and residual electrode, and complete an electrolysis cycle.

[0026] The anode grades used in the electrolysis in steps 1) and 2) of the present invention are: Pb: ≥ 98.5%, Cu: ≤ 0.06%, Sb: 0.8-1.0%, As: 0.07-0.14%; Production of lead rings th...

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Abstract

The invention discloses a method for reducing the concentration of lead ions in a lead electrolyte. The method is applied in an electrolytic refining process of lead and comprises the following steps: (1) casting by virtue of a vertical die to obtain anode plates of which sizes are 1210*810*27mm and preparing cathode starting sheets of which sizes are 1370*840*(0.85+ / -0.05) mm by virtue of a cathode sheet processing machine; (2) arranging pitches between the newly manufactured cathode starting sheets and the anode plates by virtue of an automatic pitch arranging machine, loading into a tank, switching the direct current on and electrolyzing for 3.5-4 days; and (3) taking the cathodes out, reloading the newly manufactured cathode starting sheets, continuously electrolyzing for 3.5-4 days and taking the cathodes and residual anodes out so that an electrolytic period is completed. The method disclosed by the invention has the characteristics that the effect of reducing the concentration of lead ions in a lead electrolyte is obvious and economic and technical indexes such as the current efficiency, the rate of residual anodes and energy consumption are significantly improved, and is economical, environmentally friendly and strong in operability.

Description

technical field [0001] The invention relates to a method for reducing the concentration of lead ions in a lead electrolyte, belonging to the technical field of hydrometallurgy. Background technique [0002] Under the long-term lead electrolytic refining process conditions of large plates, as the electrolysis process continues, due to the continuous dissolution of anode lead, and because the efficiency of the cathode in the later stage of electrolysis is lower than that of the anode under the long period, the electrolyte in the electrolyte Lead ions are continuously enriched. The concentration of lead ions continues to rise, resulting in poor conductivity of the electrolyte, which increases the cell voltage, increases power consumption, reduces current efficiency, deteriorates the crystallization of precipitated lead, and reduces the output of lead. [0003] At present, several methods for reducing the concentration of lead ions in the electrolyte have been reported at home ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C1/18C25C7/06
CPCC25C1/18C25C7/06
Inventor 晏祥树张良红王少龙赵红梅彭情亮朱海成李建伟翟琳娜郝二丽谢祖刚董铁广文军艾勇张庆李东伟徐建源王焕泽
Owner YUNNAN CHIHONG ZINC & GERMANIUM
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