CN102268692A - Method for producing cathode copper by directly electrolyzing spongy copper - Google Patents
Method for producing cathode copper by directly electrolyzing spongy copper Download PDFInfo
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- CN102268692A CN102268692A CN2011101641038A CN201110164103A CN102268692A CN 102268692 A CN102268692 A CN 102268692A CN 2011101641038 A CN2011101641038 A CN 2011101641038A CN 201110164103 A CN201110164103 A CN 201110164103A CN 102268692 A CN102268692 A CN 102268692A
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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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- Y02P10/00—Technologies related to metal processing
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Abstract
The invention relates to a method for producing cathode copper by directly electrolyzing spongy copper. The method is characterized in that electrolyte comprises the following components in content: 35-50 g/L of Cu<2+> and 160-180g/L of H<+>; additives comprise 50-80 g/t of bone glue, 50-70 g/t of thiocarbamide, 30-70 g/t of casein and 200-400 ml/t of hydrochloric acid; the temperature of the electrolyte is 60-68 DEG C; a red copper bar is used as an anode conductive bar; the spongy copper is packaged with a diaphragm bag and then mounted in an anode frame; the anode conductive bar is inserted in the anode frame and made into an anode; and a thin copper sheet is made into a cathode. Due to the adoption of a hydrometallurgical technology in the invention, the process flow of extracting copper from abandoned copper oxide ores and waste copper-containing solutions is shortened, the production cost is low and the metal recovery rate can be up to more than 98%; the production liquid is circulated in a closed loop, so that the quantity of waste water is low, the energy consumption is reduced and the pollution to the environment is eliminated; the master grade of the cathode copper is high and is up to 99.96%, and the current efficiency is higher than 97%.
Description
Technical field
The invention belongs to non-ferrous metal comprehensive reutilization field, relate in particular to the method for the direct electrolysis production cathode copper of a kind of copper sponge.
Background technology
Refractory copper oxide ore, discarded copper oxide ore or contained waste liquid etc. all contain a certain amount of copper, because complicated component, the extraction process difficulty is big, mostly it is adopted the method for diluted acid leaching, iron powder replacement, reclaims copper wherein, produces copper sponge.Copper sponge is spongiform copper powder, and main component is copper, water, also contains impurity such as iron, zinc, and cupric is generally about 40-80%.One of tradition is extracted copper from copper sponge method is: produce copper sulfate (Li Chande " produces copper sulfate with copper sponge "-" China YouSe metallurgy ", 1990,4) with copper sponge, this method just is converted into the copper sulfate Chemicals with copper sponge, and use range is little; Another kind method is: copper sponge blast furnace smelting (Gong Guoshui " blast furnace smelting technology of copper sponge "-" Jiangxi metallurgy ", 1992,4), and this method adopts pyrometallurgical smelting, and energy consumption height, production cost height, environmental pollution are serious.Copper sponge is utilized the technology of electrolytic process direct production cathode copper, be intended to copper sponge is made into anode copper,, also do not have this precedent at present both at home and abroad by electrolysis direct production cathode copper.
Summary of the invention
The objective of the invention is to avoid the deficiencies in the prior art that the method for the direct electrolysis production cathode copper of a kind of copper sponge is provided, this method has and improves the non-ferrous metal level of comprehensive utilization, reduces production costs, reduces energy consumption, eliminates characteristics such as environmental pollution.
For achieving the above object, the technical scheme that the present invention takes is: the method for the direct electrolysis production cathode copper of a kind of copper sponge is characterized in that:
Electrolyte component and content are: Cu
2+: 35-50g/l, H
+: 160-180g/l;
Additive: gelatine 50-80g/t; Thiocarbamide 50-70g/t; Casein food grade 30-70g/t; Hydrochloric acid 200-400ml/t;
Electrolyte temperature: 60-68 ℃;
Anode: red copper bar is as the anode conducting rod.
Described electrolytic solution current density is 230--340A/m
2, the circulation of elecrolyte amount is 15-60l/min.
Described anode pole distance is 80-110mm.
Described anode is made by following method: after copper sponge is packed with diaphragm bag, in the anode superstructure of packing into, will be made into anode in the anode conducting rod insertion anode superstructure.
Described anode superstructure is little, corrosion-resistant, on-deformable PVC of proportion or glass reinforced plastic framework, and described diaphragm bag is that good corrosion resistance, aperture are 50-200 purpose nylon wire.
Principle of the present invention is: under galvanic effect, and the dissolving of the anode generation copper of making of copper sponge: Cu-2e → Cu
2+Reduction at the negative electrode generation cupric ion of making of copper sheet obtains cathode copper: Cu
2++ 2e → Cu.The electropotential metallic impurity more negative than copper lose electronics and enter in the electrolytic solution, but can not separate out on negative electrode, and extension electrolytic solution reuse after purifying regularly remains within certain limit its foreign matter content; And the electropotential metallic impurity more positive than copper are that the anode sludge comes off and bottom land, the anode sludge after centrifuging, otherwise processed, filtrate flows into Lower tank after press filtration, pump into the header tank cyclically utilizing after purifying.
The invention has the beneficial effects as follows: adopt wet method smelting process, shortening is extracted copper from copper oxide ore, discarded copper oxide ore, contained waste liquid technical process, production cost is low, the metal recovery rate height can reach more than 98%, produces the liquid closed cycle, wastewater flow rate is few, reduce energy consumption, eliminate environmental pollution, the cathode copper master is of high grade to reach 99.96%, and current efficiency is greater than 97%.
Description of drawings
Fig. 1 is a schema of the present invention.
Embodiment
Below principle of the present invention and feature are described, institute gives an actual example and only is used to explain the present invention, is not to be used to limit scope of the present invention.
Embodiment 1: see Fig. 1, the method for the direct electrolysis production cathode copper of a kind of copper sponge is characterized in:
Electrolyte component and content are: Cu
2+: 35-50g/l, H
+: 160-180g/l;
Additive: gelatine 50-80g/t; Thiocarbamide 50-70g/t; Casein food grade 30-70g/t; Hydrochloric acid 200-400ml/t;
Electrolyte temperature: 60-68 ℃;
Anode: red copper bar is as the anode conducting rod.
Described electrolytic solution current density is 230--340A/m
2, the circulation of elecrolyte amount is 15-60l/min.
Described anode pole distance is 80-110mm.
Anode making method: the lean ore in the copper mine recovery process, barrow, contain a large amount of cupric oxide, the copper sponge that utilizes dilute sulphuric acid to leach, produce through iron powder replacement cupric oxide ore, handle by operations such as deironing, removal of impurities, dryings, after the diaphragm bag that copper sponge is made with good corrosion resistance, aperture 50-200 purpose nylon wire is packed, in the anode superstructure that little, corrosion-resistant, the on-deformable glass reinforced plastic framework of the proportion of packing into is made; With conduct electricity very well, dissolution rate is slow, the material comprehensive cost is low red copper bar is as the anode conducting rod, this red copper bar is inserted anode superstructure is made into anode.
Make negative electrode with sheet copper, carry out electrolysis, when monolithic cathode copper weight reaches more than the 10kg or centre thickness when being not less than 5mm, can extract in the electrolyzer through scalding and handle the back and put in storage.
The electropotential metallic impurity more negative than copper lose electronics and enter in the electrolytic solution, but can not separate out on negative electrode, and extension electrolytic solution reuse after purifying regularly remains within certain limit its foreign matter content; And the electropotential metallic impurity more positive than copper are that the anode sludge comes off and bottom land, the anode sludge after centrifuging, otherwise processed, filtrate flows into Lower tank after press filtration, pump into the header tank cyclically utilizing after purifying.
After testing, the cathode copper of production reaches standard cathode copper standard.
Embodiment 2: with embodiment 1, just anode pole distance is 100mm, and the anode superstructure material is PVC.
Embodiment 3: with embodiment 1, just anode pole distance is 80mm.
The above only is preferred embodiment of the present invention, in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is not equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. the method for the direct electrolysis production cathode copper of copper sponge is characterized in that:
Electrolyte component and content are: Cu
2+: 35-50g/l, H
+: 160-180g/l;
Additive: gelatine 50-80g/t; Thiocarbamide 50-70g/t; Casein food grade 30-70g/t; Hydrochloric acid 200-400ml/t;
Electrolyte temperature: 60-68 ℃;
Anode: red copper bar is as the anode conducting rod.
2. the method for the direct electrolysis production cathode copper of copper sponge as claimed in claim 1 is characterized in that described electrolytic solution current density is 230--340A/m
2, the circulation of elecrolyte amount is 15-60l/min.
3. the method for the direct electrolysis production cathode copper of copper sponge as claimed in claim 1 is characterized in that described anode pole distance is 80-110mm.
4. the method for the direct electrolysis production cathode copper of copper sponge as claimed in claim 1, it is characterized in that described anode made by following method: after copper sponge is packed with diaphragm bag, pack in the anode superstructure, will be made into anode in the anode conducting rod insertion anode superstructure.
5. the method for the direct electrolysis production cathode copper of copper sponge as claimed in claim 4, it is characterized in that described anode superstructure is little, corrosion-resistant, on-deformable PVC of proportion or glass reinforced plastic framework, described diaphragm bag is that good corrosion resistance, aperture are 50-200 purpose nylon wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110164103.8A CN102268692B (en) | 2011-06-21 | 2011-06-21 | Method for producing cathode copper by directly electrolyzing spongy copper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110164103.8A CN102268692B (en) | 2011-06-21 | 2011-06-21 | Method for producing cathode copper by directly electrolyzing spongy copper |
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| CN102268692A true CN102268692A (en) | 2011-12-07 |
| CN102268692B CN102268692B (en) | 2014-06-11 |
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| CN201110164103.8A Active CN102268692B (en) | 2011-06-21 | 2011-06-21 | Method for producing cathode copper by directly electrolyzing spongy copper |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104278291A (en) * | 2014-10-24 | 2015-01-14 | 天津中色再生金属工程技术研究院 | Method of directly melting and molding scrap copper to extract copper by electrolysis |
| 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 |
| CN109055979A (en) * | 2018-09-04 | 2018-12-21 | 太原工业学院 | A kind of electrolysis unit and a kind of method of electrolysis copper processed |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036805A (en) * | 1989-03-20 | 1989-11-01 | 重庆钢铁研究所 | Direct electrolytic refining of copper scrap by stainless steel anode frame |
| CN1390983A (en) * | 2002-07-24 | 2003-01-15 | 吉林市宏志实业发展有限公司 | Process for preparing cathode copper by one-step electrolysis of raw red copper |
| CN2732762Y (en) * | 2004-10-12 | 2005-10-12 | 范有志 | Wire frame combined type anode basket device for direct electrolysis of copper scrap |
-
2011
- 2011-06-21 CN CN201110164103.8A patent/CN102268692B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036805A (en) * | 1989-03-20 | 1989-11-01 | 重庆钢铁研究所 | Direct electrolytic refining of copper scrap by stainless steel anode frame |
| CN1390983A (en) * | 2002-07-24 | 2003-01-15 | 吉林市宏志实业发展有限公司 | Process for preparing cathode copper by one-step electrolysis of raw red copper |
| CN2732762Y (en) * | 2004-10-12 | 2005-10-12 | 范有志 | Wire frame combined type anode basket device for direct electrolysis of copper scrap |
Non-Patent Citations (2)
| Title |
|---|
| 武战强: "添加剂对阴极铜质量影响的分析与探讨", 《中国有色冶金》, no. 2, 30 April 2011 (2011-04-30) * |
| 陆湖南等: "添加剂对阴极铜质量的影响", 《有色矿冶》, vol. 21, no. 6, 31 December 2005 (2005-12-31) * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104278291A (en) * | 2014-10-24 | 2015-01-14 | 天津中色再生金属工程技术研究院 | Method of directly melting and molding scrap copper to extract copper by electrolysis |
| 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 |
| CN109055979A (en) * | 2018-09-04 | 2018-12-21 | 太原工业学院 | A kind of electrolysis unit and a kind of method of electrolysis copper processed |
| 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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|---|---|
| CN102268692B (en) | 2014-06-11 |
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Address after: 730900 13-303, Lanzhou Road 106, Baiyin District, Baiyin City, Gansu Province Patentee after: Baiyin Qiyuan Environmental Protection Technology Co., Ltd. Address before: 730900 13-303, Lanzhou Road 106, Baiyin District, Baiyin City, Gansu Province Patentee before: Baiyin Qiyuan Industry Trade Co., Ltd. |