CN101928957A - Method for electrolyzing refined copper at room temperature - Google Patents
Method for electrolyzing refined copper at room temperature Download PDFInfo
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- CN101928957A CN101928957A CN2010102984276A CN201010298427A CN101928957A CN 101928957 A CN101928957 A CN 101928957A CN 2010102984276 A CN2010102984276 A CN 2010102984276A CN 201010298427 A CN201010298427 A CN 201010298427A CN 101928957 A CN101928957 A CN 101928957A
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- copper
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention relates to a method for electrolyzing refined copper, which is mainly used for improving the components of electrolyte. The electrolyte comprises the following components: 150 to 220 g/L of H2SO4, 40 to 60 g/L of Cu<2+>, 28 to 38 mg/L of bone glue, 10 to 15 mg/L of thiourea, 8 to 12 mg/L of PAM (polyacrylamide) and 5 to 10 mg/L of acetic acid (CH3COOH). A composite additive is added into the electrolyte, so the conductivity of the electrolyte is improved, simultaneously, impurity metal ions are removed from the electrolyte at the room temperature of between 10 and 25 DEG C; the directional movement speed of copper ions in the electrolyte at room temperature is improved, and concentration polarization is reduced; and the precipitation quality of cathode copper is improved, so that electrolytic copper can be produced at room temperature. In the method for electrolyzing the refined copper at room temperature, the electrolyte is not needed to be heated and subjected to circular flow, so the production condition is simplified greatly; and the copper content of the electrolytic copper produced by the method is more than 99.99 percent, and the surface is flat and smooth.
Description
Technical field
The present invention relates to a kind of method of electrolytical refined copper, mainly is to apply under the normal temperature (10-25 ℃), need not just can carry out the production of electrolytic copper to electrolytic solution heating.
Background technology
At present, general electrolytic copper technology all is that blister copper (cupric 98%) is made slab in advance as anode, and fine copper is laminated and made negative electrode, with sulfuric acid (H
2SO
4) and copper sulfate (CuSO
4) mixed liquid as electrolytic solution.After the energising, copper becomes cupric ion to move to negative electrode from anode dissolution, arrives electron gain behind the negative electrode and separates out fine copper (also claiming electrolytic copper) at negative electrode.Impurity is as being dissolved as ion than meetings such as active iron of copper and zinc with copper in the blister copper.Use this method relatively harsher, require the foreign matter content of electrolytic solution temperature very little, electrolytic solution generally all will be controlled at 50-60 ℃ the requirement of electrolytic condition.In order to keep the comparatively high temps of electrolytic solution, necessarily require circulation of elecrolyte to flow simultaneously, this just needs to consume a large amount of electric energy or coal, become a bigger environmental problem thereby make the energy consumption of electrolytic copper production and pollute, and economic benefit reduces greatly.
Summary of the invention
The objective of the invention is to overcome that electrolytic solution must heat energy consumption and the environmental issue that remains on 50-60 ℃ condition and bring in the existing electrolytic copper production technology.By experiment repeatedly, the electrolyte prescription that the research of the applicant's success makes new advances promptly adds composite additive in electrolytic solution, to improve the conductive capability of electrolytic solution the inside; Also remove simultaneously the foreign metal ion in the electrolytic solution under normal temperature (10-25 ℃) condition; The directional movement speed of cupric ion in the electrolytic solution reduces concentration polarization under the raising normal temperature condition; Improve cathode copper and separate out quality, the production electrolytic copper comes true under the normal temperature condition thereby make.Because this new electrolyte prescription of utilization can make the temperature of electrolytic solution need not must to maintain under 50-60 ℃ the condition as traditional electrolytic solution again, so the requirement to electrolytic solution in the production method of normal temperature electrolytic copper is to heat, also need not circulate, like this requirement of working condition be oversimplified greatly.And because electrolytic solution is immobilized, reduced the possibility that contaminant particles in the electrolytic solution is adsorbed to the electrolytic copper negative plate, electrolysis impurity is deposited in the electrolytic slime, and the negative plate surface that production is obtained is Paint Gloss beautiful, and the negative plate copper content is higher than traditional heating method.
The production method of electrolyzing refined copper at room temperature of the present invention is as follows:
1, electrolyte prescription
H
2SO
4: 150-220g/L; Cu
2+: 40-60g/L; Gelatine: 28-38mg/L; Thiocarbamide: 10-15mg/L; The PAM(polyacrylamide): 8-12 mg/L; Acetate (CH
3COOH): 5-10mg/L.
More than each prescription medicine directly join successively in the electrolytic solution according to consumption, the electrolysis production process need not be added the discrete medicine separately, but will suitably replenish the standby electrolytic solution of same prescription according to the liquid level of electrolytic solution height.
2, electrolyzer
Electrolyzer is the main equipment of electrolytical refined copper, electrolyzer is the rectangle trough, the groove built-in is provided with liquid-inlet pipe and drain pipe, the electrolyzer size dimension can be done the adjustment of adaptation according to the specification of the product electrolytic copper negative plate of actual production, the electrolyzer material adopts soft board PVC or glass reinforced plastic lining, because electrolytic solution does not need heating and circulation, so this electrolyzer is simple.
3, anode material
Blister copper positive plate (the electrolytic copper positive plate of traditional cupric 98%), blast furnace copper ingot, be packaged into blocky useless composition brass, the pulverizing copper pin of the copper scrap line packed with anode etc.
4, electrolyte temperature
Just can produce under normal temperature (10-25 ℃) condition, need not heat.Facts have proved that being higher than 25 degree at electrolyte temperature also can the ordinary production electrolytic copper, but productive rate and quality do not improve more obviously, so need not heat to electrolytic solution.
5, electrolytic solution circulates
Electrolytic solution need not circulate.Facts have proved the static stable better cathode plate of output quality that helps on the contrary of electrolytic solution.
6, current density range is at 150-320A/m
2
7, interpole gap is 100-160mm.
Major advantage of the present invention is:
1, thoroughly changes the working condition of traditional electrolytic copper, can under the condition that need not heat electrolytic solution, just can carry out the production of electrolytic copper by normal temperature (10-25 ℃), reduced production cost, avoided the environmental pollution that coal combustion produced;
2, because electrolytic solution need not heating cycle flowed, the requirement of production unit is reduced greatly.Need not need to heat the high pressure steam stove and the high-order pond of usefulness again; Do not need to lay yet and be used for the heat-resisting acid proof pipeline of round-robin, do not need the power machine acid proof pump that circulates etc. yet;
3, this production method is produced the electrolytic copper copper content that obtains greater than 99.99%, and surfacing is smooth.The heating electrolytic copper of comparing traditional, not long particle in electrolytic copper negative plate of the present invention surface and exoncoma, not embrittlement, do not produce air marks; Color and luster is showy rose, and slickness equals to minute surface;
4, can be used for as the scope of the blister copper of electrolytic anode of the present invention very wide, blister copper positive plate (the electrolytic copper positive plate of traditional cupric 98%), blast furnace copper ingot, be packaged into blocky useless composition brass, the pulverizing spicule of the copper scrap line packed with anode etc., all copper contents surpass 85% electrolytic copper positive plate or waste cupron can be used for producing electrolytic copper;
5, pollution-free, the environmental protection and energy-conservation of whole process of production has great economic benefit and social benefit.
Embodiment
A kind of production method of electrolyzing refined copper at room temperature comprises:
1, electrolytic solution is formed: H
2SO
4160g/L; Cu
2+45g/L; Gelatine 30mg/L; Thiocarbamide 12mg/L; The PAM(polyacrylamide) 10 mg/L; Acetate (CH
3COOH) 6mg/L, wherein, Cu
2+Form with copper sulfate adds.More than each prescription medicine directly join successively in the electrolytic solution according to consumption, the electrolysis production process need not be added the discrete medicine separately, but will suitably replenish the standby electrolytic solution of same prescription according to the liquid level of electrolytic solution height.
2, electrolyzer: electrolyzer is the rectangle trough, and the groove built-in is provided with liquid-inlet pipe and drain pipe, and the electrolyzer size dimension is done the adjustment of adaptation according to the specification of the product electrolytic copper negative plate of actual production, and the electrolyzer material adopts soft board PVC.
3, anode material: comprise as the blister copper of electrolytic anode: (A) blister copper positive plate, the electrolytic copper positive plate of promptly traditional cupric 98%, (B) blast furnace copper ingot (C) is packaged into blocky useless composition brass, (D) the pulverizing copper pin of the copper scrap line of packing with anode; The electrolytic copper positive plate of copper content 〉=85% or waste cupron can be used for doing the normal temperature electrolytic copper.
4, electrolyte temperature: under normal temperature (10-25 ℃) condition, produce, need not heat.Facts have proved that being higher than 25 ℃ at electrolyte temperature also can the ordinary production electrolytic copper, but productive rate and quality do not improve more obviously, so need not heat to electrolytic solution.
5, circulating of electrolytic solution: electrolytic solution need not circulate.Facts have proved the static stable better cathode plate of output quality that helps on the contrary of electrolytic solution.
6, current density range is at 200-250A/m
2
7, interpole gap is 110-120mm.
Claims (5)
1. the method for an electrolyzing refined copper at room temperature, it is characterized in that: its electrolyte composition comprises: H
2SO
4: 150-220g/L; Cu
2+: 40-60g/L; Gelatine: 28-38mg/L; Thiocarbamide: 10-15mg/L; The PAM(polyacrylamide): 8-12 mg/L; Acetate (CH
3COOH): 5-10mg/L; Electrolyte temperature is: 10-25 ℃.
2. the method for electrolyzing refined copper at room temperature according to claim 1, it is characterized in that: cathode current density is 150-320A/m
2Cathode and anode spacing is 100-160mm.
3. the method for electrolyzing refined copper at room temperature according to claim 1 and 2, it is characterized in that: the blister copper as electrolytic anode comprises: (A) blister copper positive plate, it is the electrolytic copper positive plate of traditional cupric 98%, (B) blast furnace copper ingot, (C) be packaged into blocky useless composition brass, (D) the pulverizing spicule of the copper scrap line of packing with anode; The electrolytic copper positive plate of copper content 〉=85% or waste cupron can be used for doing the normal temperature electrolytic copper.
4. the method for electrolyzing refined copper at room temperature according to claim 1 and 2, it is characterized in that: electrolytic solution is that immobilized need not circulate.
5. the method for electrolyzing refined copper at room temperature according to claim 3, it is characterized in that: electrolytic solution is that immobilized need not circulate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102984276A CN101928957B (en) | 2010-10-04 | 2010-10-04 | Method for electrolyzing refined copper at room temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102984276A CN101928957B (en) | 2010-10-04 | 2010-10-04 | Method for electrolyzing refined copper at room temperature |
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| Publication Number | Publication Date |
|---|---|
| CN101928957A true CN101928957A (en) | 2010-12-29 |
| CN101928957B CN101928957B (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102984276A Expired - Fee Related CN101928957B (en) | 2010-10-04 | 2010-10-04 | Method for electrolyzing refined copper at room temperature |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418117A (en) * | 2011-11-29 | 2012-04-18 | 宁波蓝鼎电子科技有限公司 | Method for electrolytic refining in fire refining of cathode copper |
| CN102492960A (en) * | 2011-12-30 | 2012-06-13 | 重庆重冶铜业有限公司 | Method for preparing cathode copper by high-nickel content copper plate as anode |
| CN102517605A (en) * | 2011-12-29 | 2012-06-27 | 重庆重冶铜业有限公司 | Production method of cathode copper |
| CN103046077A (en) * | 2011-10-17 | 2013-04-17 | 蔡泉森 | Method for realizing copper nickel tin and precious metal anode mud separation through black copper electrolysis of electroplating sludge |
| CN103510106A (en) * | 2013-09-22 | 2014-01-15 | 中南大学 | Copper electrolysis additive and use method thereof |
| CN103726070A (en) * | 2013-12-13 | 2014-04-16 | 金川集团股份有限公司 | Copper electrolyte additive and application method thereof |
| CN104694978A (en) * | 2013-12-05 | 2015-06-10 | 阳谷祥光铜业有限公司 | Waste electrolyte treatment method and device |
| CN105132946A (en) * | 2015-09-22 | 2015-12-09 | 太原工业学院 | Compound additive for high-purity cathode copper |
| CN105132945A (en) * | 2015-09-22 | 2015-12-09 | 太原工业学院 | Composite additive used for energy-saving electrolytic refined copper |
| CN106011930A (en) * | 2016-07-28 | 2016-10-12 | 河南豫光金铅股份有限公司 | Continuous preparation method of refining electrolytic solution for copper electrolysis |
| CN109252189A (en) * | 2018-10-30 | 2019-01-22 | 金川集团股份有限公司 | A kind of method that high purity copper is extracted in waste solution of copper electrolysis purification |
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| JPS5690993A (en) * | 1979-12-21 | 1981-07-23 | Furukawa Electric Co Ltd:The | Electrolytic refining of copper |
| JPH0625882A (en) * | 1992-07-03 | 1994-02-01 | Sumitomo Metal Mining Co Ltd | Electrolytic refining method for copper |
| JP2001247991A (en) * | 1999-12-28 | 2001-09-14 | Mitsui Mining & Smelting Co Ltd | Method for electro-refining copper and electrolytic copper |
| CN101343750A (en) * | 2008-08-29 | 2009-01-14 | 昆明理工大学 | Application of sulphuric acid hydrogen imidazole ion liquid in electrolytical refined copper |
| CN101481810A (en) * | 2009-01-12 | 2009-07-15 | 梅县金象铜箔有限公司 | Method for manufacturing two-sided optical ultrathin electrolytic copper foil with high elongation |
-
2010
- 2010-10-04 CN CN2010102984276A patent/CN101928957B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5690993A (en) * | 1979-12-21 | 1981-07-23 | Furukawa Electric Co Ltd:The | Electrolytic refining of copper |
| JPH0625882A (en) * | 1992-07-03 | 1994-02-01 | Sumitomo Metal Mining Co Ltd | Electrolytic refining method for copper |
| JP2001247991A (en) * | 1999-12-28 | 2001-09-14 | Mitsui Mining & Smelting Co Ltd | Method for electro-refining copper and electrolytic copper |
| CN101343750A (en) * | 2008-08-29 | 2009-01-14 | 昆明理工大学 | Application of sulphuric acid hydrogen imidazole ion liquid in electrolytical refined copper |
| CN101481810A (en) * | 2009-01-12 | 2009-07-15 | 梅县金象铜箔有限公司 | Method for manufacturing two-sided optical ultrathin electrolytic copper foil with high elongation |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046077A (en) * | 2011-10-17 | 2013-04-17 | 蔡泉森 | Method for realizing copper nickel tin and precious metal anode mud separation through black copper electrolysis of electroplating sludge |
| CN102418117B (en) * | 2011-11-29 | 2014-04-16 | 宁波蓝鼎电子科技有限公司 | Method for electrolytic refining in fire refining of cathode copper |
| CN102418117A (en) * | 2011-11-29 | 2012-04-18 | 宁波蓝鼎电子科技有限公司 | Method for electrolytic refining in fire refining of cathode copper |
| CN102517605A (en) * | 2011-12-29 | 2012-06-27 | 重庆重冶铜业有限公司 | Production method of cathode copper |
| CN102492960A (en) * | 2011-12-30 | 2012-06-13 | 重庆重冶铜业有限公司 | Method for preparing cathode copper by high-nickel content copper plate as anode |
| CN102492960B (en) * | 2011-12-30 | 2014-04-30 | 重庆重冶铜业有限公司 | Method for preparing cathode copper by high-nickel content copper plate as anode |
| CN103510106A (en) * | 2013-09-22 | 2014-01-15 | 中南大学 | Copper electrolysis additive and use method thereof |
| CN104694978B (en) * | 2013-12-05 | 2018-03-23 | 阳谷祥光铜业有限公司 | The processing method and processing unit of a kind of waste electrolyte |
| CN104694978A (en) * | 2013-12-05 | 2015-06-10 | 阳谷祥光铜业有限公司 | Waste electrolyte treatment method and device |
| CN103726070A (en) * | 2013-12-13 | 2014-04-16 | 金川集团股份有限公司 | Copper electrolyte additive and application method thereof |
| CN105132945A (en) * | 2015-09-22 | 2015-12-09 | 太原工业学院 | Composite additive used for energy-saving electrolytic refined copper |
| CN105132946A (en) * | 2015-09-22 | 2015-12-09 | 太原工业学院 | Compound additive for high-purity cathode copper |
| CN106011930A (en) * | 2016-07-28 | 2016-10-12 | 河南豫光金铅股份有限公司 | Continuous preparation method of refining electrolytic solution for copper electrolysis |
| CN106011930B (en) * | 2016-07-28 | 2018-09-25 | 河南豫光金铅股份有限公司 | A kind of continuous preparation method of cupric electrolysis refining electrolyte |
| CN109252189A (en) * | 2018-10-30 | 2019-01-22 | 金川集团股份有限公司 | A kind of method that high purity copper is extracted in waste solution of copper electrolysis purification |
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| Publication number | Publication date |
|---|---|
| CN101928957B (en) | 2012-07-11 |
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Owner name: YU DONG Free format text: FORMER OWNER: PU NING CHANGXIN HARDWARE CO., LTD. Effective date: 20121129 |
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Effective date of registration: 20121129 Address after: 515437 Guangdong city of Jieyang province Puning City, Hong Yang Zhen Qi Gang Cun Sha Yuan No. 45 Patentee after: Yu Dong Address before: 515437 Lake Village Industrial Zone in Guangdong city of Jieyang province Puning city dam town Patentee before: Puning City Changxin Hardware Co., Ltd. |
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