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Negative plate

A cathode plate, magnesium alloy plate technology, applied in electrodes, photographic processes, instruments, etc., can solve the problems of difficult peeling, large plate loss, etc., and achieve the effect of fast zinc loading, improved electrical efficiency, and improved electrical efficiency.

Inactive Publication Date: 2006-06-21
昆明同越科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the application of alkaline electrolytic zinc production process has just started, this process used to mainly use stainless steel as the cathode and anode plates, and the electrolytic small zinc flakes produced are attached to the cathode plate, but it is difficult to peel off, even like an electroplating layer, which needs to be acidified. wash
In this way, the loss of the plate is very large, and the automatic flow operation is unconditionally performed after the electrolysis is completed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The cathode plate of the present invention is mainly used in the electrolysis of zinc in the process of extracting high-purity zinc with a strong alkali solution. The magnesium alloy plate of the present invention is obtained by melting and casting the metal of the following weight percentage: manganese (Mn) : 1.8%, aluminum (AL): 0.018%, zinc (Zn): 0.2%, zirconium (Zr): 0.2%, silver (Ag): 0.15% and the balance of magnesium (Mg), first put the pure magnesium plate The aluminum (AL) and zinc (Zn) are purified to 0.018% and 0.2% by weight respectively, and then manganese (Mn), zirconium (Zr) and silver (Ag) are added to cast and roll into a magnesium alloy cathode plate, and then Polished to 90 degrees matt by ordinary polishing process.

Embodiment 2

[0013] The cathode plate of the present invention is mainly used in the electrolysis of zinc in the process of extracting high-purity zinc with a strong alkali solution. The magnesium alloy plate of the present invention is obtained by melting and casting the metal of the following weight percentage: manganese (Mn) : 2.0%, aluminum (AL): 0.016%, zinc (Zn): 0.25%, zirconium (Zr): 0.3%, silver (Ag): 0.2% and the rest of magnesium (Mg), according to the melting and casting of Example 1 Methods The obtained magnesium alloy cathode plate was polished to 90 degree matt by ordinary polishing process.

Embodiment 3

[0015] The cathode plate of the present invention is mainly used in the electrolysis of zinc in the process of extracting high-purity zinc with a strong alkali solution. The magnesium alloy plate of the present invention is obtained by melting and casting the metal of the following weight percentage: manganese (Mn) : 1.1%, aluminum (AL): 0.006%, zinc (Zn): 0.104%, zirconium (Zr): 0.06%, silver (Ag): 0.06% and the rest of magnesium (Mg), according to the melting and casting of Example 1 Methods The obtained magnesium alloy cathode plate was polished to 90 degree matt by ordinary polishing process.

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PUM

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Abstract

The invention relates to a negative plate for electrolyzing metals in alkaline solutions, wherein the negative plate is made from magnesium alloy through polishing, the magnesium alloy plate comprises the following metals (by weight percent): Mn 1.0-3.0%, Al 0.05-0.3%, Zn 0.1-0.5%, Zr 0.05-0.5%, Ag 0.05-0.5% and balancing Mg.

Description

technical field [0001] The invention relates to a component for electrolysis process, in particular to a cathode plate for electrolyzing metal in alkaline solution. Background technique [0002] The production process of alkaline electrolytic zinc has a Chinese patent application number of 02133749.7, titled "Method for producing high-purity metal zinc from zinc oxide ore" and a Chinese patent application number of 03116754.3, titled "A method of producing high-purity metal zinc from zinc oxide ore". It is disclosed in "Methods for Metallic Zinc" that its main production process is to change the traditional acid process, crush the zinc oxide ore that cannot be used in the acid process, put it into a strong alkali solution, and filter-separate-filter- electrolysis, and finally deposited on the cathode to obtain metallic zinc with a purity of more than 99.9%. However, since the application of alkaline electrolytic zinc production process has just started, this process used to...

Claims

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Application Information

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IPC IPC(8): C25C7/02C25C1/16
Inventor 赵由才易天晟朱清渭
Owner 昆明同越科技开发有限公司
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