CN1772965A - Magnesium alloy cathode plate for alkaline solution electrolyzing zinc - Google Patents
Magnesium alloy cathode plate for alkaline solution electrolyzing zinc Download PDFInfo
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- CN1772965A CN1772965A CN 200410060218 CN200410060218A CN1772965A CN 1772965 A CN1772965 A CN 1772965A CN 200410060218 CN200410060218 CN 200410060218 CN 200410060218 A CN200410060218 A CN 200410060218A CN 1772965 A CN1772965 A CN 1772965A
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- zinc
- magnesium alloy
- electrolytic
- negative plate
- alkaline solution
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Abstract
The present invention relates to electrolytic electrode plate technology, and provides a magnesium alloy negative plate for electrolytic production of zinc by using alkaline solution. Its composition includes (by wt%) manganese 1.3-2.5, silver 0.1-0.3, aluminium whose content is less than 0.01 and the rest is magnesium.
Description
Affiliated technical field
The present invention relates to the electrolytic pole board technology, mainly propose a kind of basic solution electrolytic zinc magnesium alloy negative plate.
Background technology
The application of zinc is very extensive, and zinc can be made alloy with multiple non-ferrous metal, makes brass with copper, tin, aluminium etc., and zinc and aluminium, magnesium, copper etc. are made alloy for die casting, are used to make various precision castings, and the surface galvanizing that also can be used as anticorrosion part is used.Zinc ore is divided into sulphide ores and oxidized ore by its contained mineral difference.The zinc smelting process has two kinds of pyrometallurgical smelting and hydrometallurgies; Adopt of zinc hydrometallurgy leached flow process again, and in the sulfuric acid leaching process, electrolytic solution is ZnSO
4, H
2SO
4And H
2O adopts aluminium sheet as negative plate.After the electrolysis, on negative plate, deposit Zn, but there are many problems in this technology, high as sulfur dioxide pollution, slagging-off difficulty and cost.The zinc oxide ore that reserves are huge is because grade is on the low side, and former wet method (acidleach---electrolysis) is difficult to be competent at, so that low-grade zinc oxide ore is not paid attention to so far yet, this has caused the significant wastage of resource undoubtedly.Have this principle of very high solubleness according to zinc oxide in strong base solution, leaching electrolytic method with basic solution from oxidized ore and extracting zinc of research is a brand-new technology that effectively utilizes resource, is the revolution that zinc is produced.Its technical process is, and: original ore size 10～15mm → wear into 100# granularity → water logging becomes solution → filtration → adding NaOH electrolytic solution → galvanic deposit → electrolytic zinc; Employing is the basic solution of electrolytic solution with NaOH, the technology that leaches electrowinning zinc requires very high to electrolytic pole plate, especially anticathode plate, this is because after the electrolysis, Zn is deposited on the negative plate, require negative plate that excellent conducting performance is arranged, and can not on negative electrode, produce the apposition thing after the electrolysis, to guarantee electrolytic current efficiency, negative plate has only and has satisfied above characteristic, just can reach the requirement that improves electrolytic efficiency, reduces power consumption cost, otherwise, carry zinc for the low oxidized ore of zinc content and handle, because the reason of cost has just lost value.Employing is with the basic solution of NaOH electrolytic solution, carries zinc with the alkaline process leaching, when electrolytic negative plate adopts stainless steel plate, is easy to generate electrode apposition thing and reduces current efficiency, influence electrolytic efficiency, thereby the zinc effect put forward in influence, the raising production cost; When using the titanium plate to make negative plate, its cost is very high, and aluminium sheet is very low to its caustic corrosion resistance degree as negative plate, can't adapt to the alkaline process Zn extraction process.Because alkaline process is put forward the singularity of zinc, thereby existing material as electrolytic pole board is applied to this technology and all has certain defective.
Summary of the invention
Purpose of the present invention promptly is to propose a kind of basic solution electrolytic zinc magnesium alloy negative plate.
Basic solution electrolytic zinc magnesium alloy negative plate proposed by the invention, the weight percent of its component is: manganese 1.3～2.5, silver 0.1～0.3, aluminium＜0.01, surplus is a magnesium.
The present invention adopts the magnesium alloy negative plate of above-mentioned component and proportional quantity, be used for basic solution electrolytic zinc technology, its current efficiency is higher, current efficiency is than using stainless steel to improve 30% as negative plate, during electrolysis, on pole plate, do not produce the apposition thing substantially, current efficiency can not be affected, satisfied the alkaline process Zn extraction process and be applied to of the requirement of the lower oxidized ore of zinc content cost, the magnesium alloy negative plate that the present invention proposes has very good anticorrosion properties to basic solution, thereby life cycle is longer, and can not corrosion pit occur and have influence on the problem of current efficiency, further presents it and is applied to characteristics in the alkaline process Zn extraction process.
Embodiment
Embodiment in conjunction with the present invention provides is further specified the present invention:
Embodiment 1
The component of magnesium alloy negative plate and weight percent are: manganese 1.3, and silver 0.1, aluminium＜0.01, surplus is a magnesium.
Embodiment 2
The component of magnesium alloy negative plate and weight percent are: manganese 1.8, and silver 0.2, aluminium＜0.01, surplus is a magnesium.
Embodiment 3
The component of magnesium alloy negative plate and weight percent are: manganese 2.5, and silver 0.3, aluminium＜0.01, surplus is a magnesium.
Claims (1)
1, a kind of basic solution electrolytic zinc magnesium alloy negative plate, it is characterized in that: the weight percent of its component is: manganese 1.3～2.5, silver 0.1～0.3, aluminium＜0.01, surplus is a magnesium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410060218 CN1772965A (en) | 2004-11-08 | 2004-11-08 | Magnesium alloy cathode plate for alkaline solution electrolyzing zinc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410060218 CN1772965A (en) | 2004-11-08 | 2004-11-08 | Magnesium alloy cathode plate for alkaline solution electrolyzing zinc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1772965A true CN1772965A (en) | 2006-05-17 |
Family
ID=36760102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410060218 Pending CN1772965A (en) | 2004-11-08 | 2004-11-08 | Magnesium alloy cathode plate for alkaline solution electrolyzing zinc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1772965A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181886A (en) * | 2011-04-08 | 2011-09-14 | 同济大学 | Method for producing one-dimensional nanometer flake zinc powder by directly electrolyzing strong alkaline solution |
| CN102433569A (en) * | 2011-12-06 | 2012-05-02 | 中南大学 | Method for electrolyzing high-alkali gangue type low-grade zinc oxide ore leachate treated by ammonia leaching process |
| CN109208037A (en) * | 2018-10-15 | 2019-01-15 | 昆明联亚电极材料制造有限公司 | A kind of dedicated cathode-anode plate New insulated anti-corrosion vulcanization plant of electrolytic zinc |
-
2004
- 2004-11-08 CN CN 200410060218 patent/CN1772965A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181886A (en) * | 2011-04-08 | 2011-09-14 | 同济大学 | Method for producing one-dimensional nanometer flake zinc powder by directly electrolyzing strong alkaline solution |
| CN102181886B (en) * | 2011-04-08 | 2013-02-13 | 同济大学 | Method for producing one-dimensional nanometer flake zinc powder by directly electrolyzing strong alkaline solution |
| CN102433569A (en) * | 2011-12-06 | 2012-05-02 | 中南大学 | Method for electrolyzing high-alkali gangue type low-grade zinc oxide ore leachate treated by ammonia leaching process |
| CN102433569B (en) * | 2011-12-06 | 2014-11-05 | 中南大学 | Method for electrolyzing high-alkali gangue type low-grade zinc oxide ore leachate treated by ammonia leaching process |
| CN109208037A (en) * | 2018-10-15 | 2019-01-15 | 昆明联亚电极材料制造有限公司 | A kind of dedicated cathode-anode plate New insulated anti-corrosion vulcanization plant of electrolytic zinc |
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