CN105821443A - Production process of cathode copper - Google Patents
Production process of cathode copper Download PDFInfo
- Publication number
- CN105821443A CN105821443A CN201610303866.9A CN201610303866A CN105821443A CN 105821443 A CN105821443 A CN 105821443A CN 201610303866 A CN201610303866 A CN 201610303866A CN 105821443 A CN105821443 A CN 105821443A
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- CN
- China
- Prior art keywords
- copper
- frame
- leaching
- cathode
- liquid
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/06—Operating or servicing
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention relates to a production process of cathode copper. A waste copper material is pretreated to divide into high-grade waste copper and low-grade waste copper; the high-grade waste copper enters an anode frame of a frame electrolytic bath; the low-grade waste copper enters a leaching tank for leaching; in the anode frame of the frame electrolytic bath, a soluble anode plate formed by the copper waste is dissolved after electrification; dissolved copper divalent ions are shifted to a cathode plate in electrolyte, and are precipitated to obtain the cathode copper; in the leaching tank, the low-grade waste copper is leached by acid to produce copper-contained liquid, and is extracted and reversely extracted to remove impurities, purify and enrich to reach the copper containing standard of electric rich liquid; one part is fed into the frame electrolytic bath to serve as supplemented new liquid for producing the cathode copper, and the rich part is fed in a winning cell to produce electro-deposited copper; and open-circuit waste liquid generated by electrolysis of the frame electrolytic bath enters a resin ion separation tower, and enters a dilution pool to mix with tail liquid, generated by extraction, to serve as leaching liquid to enter the leaching tank.
Description
Technical field:
The present invention relates to the production technology of a kind of tough cathode.
Background technology:
It is known that, the copper scrap of copper concentrate and recycling is impure many, low containing copper grade, can not directly apply, direct pouring can not go out smooth cast anode plate electrolysis refine, slightly must be refined by pyrogenic process, refine carries out aoxidizing and reduce after two steps remove impurity therein, then is melted to be cast into and have definite shape and can meet the cast anode plate of electrorefining requirement.
Frame is electrolysed owing to slightly refining without pyrogenic process. refine, therefore, the useless recycled copper physical appearance pole of figure is irregular, and containing the various metals very harmful to tough cathode electrolysis production, nonmetallic inclusion, the further production producing tough cathode is directly continued by these harm, production cost reduces, and can product quality guarantee volume production cause extreme influence.
Hydrometallurgy leaching extraction technique is currently mainly used widely in terms of metallic ore and regulus leach extraction.
Existing tough cathode production method is mostly pyrometallurgical smelting method and hydrometallurgical.But, pyrogenic process adds electrorefining from raw ore to product, and technological process is long, and equipment investment is big, and production cost is high, and production capacity is big but energy consumption is high, big to environment；Hydrometallurgy leaching extraction technique produces the application of electrowinning product mainly for metallic ore (especially oxidized ore).
Summary of the invention:
The present invention is just for the problems referred to above, it is provided that the production technology of a kind of tough cathode.
To achieve these goals, the present invention adopts the following technical scheme that,
Concrete procedure of processing is,
1, copper scrap material is divided into high-grade copper scrap and low-grade copper scrap after first passing through pretreatment, high-grade copper scrap enters in the anode frame of frame electrolysis bath, tough cathode is produced as fusible anode Direct Electrolysis, it is provided with cathode sheets between the anode frame of frame electrolysis bath, the conductive electrode of cathode-anode plate connects with power supply respectively, and after energising, soluble anode plate dissolves, the copper divalent ion dissolved migrates to minus plate in the electrolytic solution and precipitates, and obtains tough cathode；
2, in leaching tanks, low-grade copper scrap carries out impurity and purification by leaching, extraction and back extraction, reaching electricity rich solution content and purification standard after enrichment, a part is sent to the frame electrolysis bath supplementary new liquid as production tough cathode, and flap portion is sent to Winning cell and produces electro deposited copper.
4, in the anode frame of frame electrolysis bath, the waste liquid produced after electrolysis enters resin ion knockout tower and carries out waste acidity recovery to reduce acidity, subsequently enters diluting tank, extracts tail washings also into diluting tank；In diluting tank, waste liquid, by tail washings dilution mixture, enters leaching tanks as leachate.
Described pretreatment include sorting, magnetic separation and cleaning, high-grade copper scrap and low-grade copper scrap the sorting copper content with 96% as boundary, higher than 96% for high-grade copper scrap, less than 96% for low-grade copper scrap.
The spent acid separated in resin ion knockout tower is admitted to frame electrolysis bath as the supplementary acid of electrolysis.
Beneficial effects of the present invention:
The present invention had both solved the effluent purifying of a large amount of electrolysis waste solutions, the remove impurity difficult problem that the electrolysis of frame copper scrap needs periodically to discharge, also solve low-grade copper scrap material to need not move through pyrogenic process and slightly refine. refine and the difficult problem that can directly utilize, expand copper scrap one step Direct Electrolysis applicable raw materials grade scope.
Waste liquid, through waste acidity recovery, completes leaching process as copper scrap leachate after diluting with extraction tail washings, and leaching feed liquid is again through extracting and purifying remove impurity, and the enrichment of low content copper ion reaches electrolysis and supplements the electric rich solution return electrolysis bath utilization of new liquid standard.Both having reached to be electrolysed open circuit waste liquid with the harmless process of energy-conserving and environment-protective technique is substantial amounts of, the processing cost of process more any than other is the lowest again.
Extraction. after enrichment, electricity rich solution is utilized as the new liquid of electrolysis bath replenishment cycles, expands the scope of application of frame copper scrap electrolysis raw material, in processing cost and invest under less condition of growth, significantly increase lead, by-product Production Gain.
The present invention produces in the energy-conserving and environment-protective production link produced without dust, flue gas, metallurgical slag, it is achieved that low cost, and scale is sustainable.
Accompanying drawing illustrates:
Fig. 1 is the process chart of the present invention.
Fig. 2 is the frame copper scrap Direct Electrolysis process chart of the present invention.
Fig. 3 is the extract technology flow chart of the present invention.
Fig. 4 is the extractant anti-extraction process flow chart of the present invention.
Detailed description of the invention:
From Fig. 1-4, the procedure of processing that the present invention is concrete is,
1, copper scrap material is divided into high-grade copper scrap and low-grade copper scrap after first passing through pretreatment, and high-grade copper scrap enters in the anode frame of frame electrolysis bath, produces tough cathode as fusible anode Direct Electrolysis, and low-grade copper scrap enters in leaching tanks and leaches；
2, in anode frame, copper scrap is as soluble anode plate, arranges cathode sheets between anode frame, and anode cathode couples with power supply respectively, and after energising, soluble anode plate dissolves, and the copper divalent ion of dissolving migrates to minus plate in the electrolytic solution and precipitates, and obtains tough cathode；
3, in leaching tanks, low-grade copper scrap carries out impurity and purification by leaching, extraction and back extraction, reaches electricity rich solution content and purification standard after enrichment, a part is sent to the frame electrolysis bath supplementary new liquid as production tough cathode, and flap portion is sent to Winning cell and produces electro deposited copper.
4, in the anode frame of frame electrolysis bath, the waste liquid produced after electrolysis enters resin ion knockout tower and carries out waste acidity recovery to reduce acidity, subsequently enters diluting tank, the tail washings that extraction produces is also into diluting tank, in diluting tank, waste liquid, by tail washings dilution mixture, enters leaching tanks as leachate.
5, described pretreatment include sorting, magnetic separation and cleaning, high-grade copper scrap and low-grade copper scrap the sorting copper content with 96% as boundary, higher than 96% for high-grade copper scrap, less than 96% for low-grade copper scrap.
6, the spent acid separated in resin ion knockout tower is admitted to frame electrolysis bath and supplements sulphuric acid utilization as electrolysis.
Above example is the present invention preferably embodiment; but embodiments of the present invention are not limited by above-described embodiment; other any spirit without departing from the present invention and technological principle; process program increase and decrease. order adjust improvements introduced. adjust. modify. application mode substitute. simplify be equivalence substitute mode, be included in scope within.
Claims (5)
1. the production technology of a waste cupron production tough cathode, it is characterized in that, technological process includes combined frame copper scrap Direct Electrolysis production tough cathode technique and hydrometallurgy leaching extraction technique is applied to copper scrap and leaches, and the combination application of both technique forms copper scrap regeneration and produces the novel production process of tough cathode；
Concrete procedure of processing is,
(1) copper scrap material is divided into high-grade copper scrap and low-grade copper scrap after first passing through pretreatment, and high-grade copper scrap is directly entered in the anode frame of frame electrolysis bath, and waste cupron produces tough cathode as soluble anode Direct Electrolysis；Being provided with cathode sheets between the anode frame of frame electrolysis bath, the conductive electrode of cathode-anode plate connects with power supply respectively, and after energising, soluble anode plate dissolves, and the copper divalent ion of dissolving migrates to minus plate in the electrolytic solution and precipitates, and obtains tough cathode；
(2) in leaching tanks, low-grade copper scrap passes through acidic leaching, obtain cupric and leach feed liquid, leach feed liquid and enter extraction box, through the impurity and purification of Extraction and back extraction process and be enriched with into cupric electrolysis electricity consumption rich solution, an electricity rich solution part is sent to frame electrolysis bath and supplements production tough cathode as new liquid, and flap portion is sent to Winning cell and produces electro deposited copper；
(3) the periodically open circuit discharge waste liquid produced after frame electrolytic tank electrolysis enters resin ion knockout tower and carries out waste acidity recovery to reduce acidity, and cupric liquid subsequently enters diluting tank, the tail washings mixed diluting produced with extraction, as leachate entrance leaching tanks.
The production technology of tough cathode the most according to claim 1, it is characterised in that pretreatment includes sorting, magnetic separation and cleaning.
The production technology of tough cathode the most according to claim 1, it is characterised in that leach and include drill traverse. dump leaching. stirring leaching. molten leaching.
The production technology of tough cathode the most according to claim 1, it is characterised in that for the selective extraction back extraction of copper ion, the leaching feed liquid of low-grade copper is got remove impurity. purify and liquid cupric enrichment.
The production technology of tough cathode the most according to claim 1, it is characterised in that, it is interior for being electrolysed the utilization of supplementary sulphuric acid that the spent acid separated in resin ion knockout tower is sent back to frame electrolysis bath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610303866.9A CN105821443A (en) | 2016-05-10 | 2016-05-10 | Production process of cathode copper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610303866.9A CN105821443A (en) | 2016-05-10 | 2016-05-10 | Production process of cathode copper |
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| CN105821443A true CN105821443A (en) | 2016-08-03 |
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| CN201610303866.9A Pending CN105821443A (en) | 2016-05-10 | 2016-05-10 | Production process of cathode copper |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111826684A (en) * | 2020-07-31 | 2020-10-27 | 中华全国供销合作总社天津再生资源研究所 | Electrolytic tank and electrolytic system for producing copper powder by using scrap copper material |
| CN114892221A (en) * | 2022-05-09 | 2022-08-12 | 惠州市华盈科技有限公司 | Cyclone electrolysis method for manufacturing cathode copper sheet |
| CN115747507A (en) * | 2022-12-01 | 2023-03-07 | 中铁资源集团有限公司 | Hydrometallurgical method for recovering copper from copper oxide ore |
Citations (7)
| 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 |
| CN101451196A (en) * | 2007-12-03 | 2009-06-10 | 灵宝市金源矿业有限责任公司 | Wet-smelting method of copper and zinc bulk concentrate |
| CN102618722A (en) * | 2012-03-27 | 2012-08-01 | 武振龙 | Clean recovery production method of waste copper and copper-containing waste |
| CN102776527A (en) * | 2012-07-31 | 2012-11-14 | 安徽嘉伟再生资源有限公司 | Novel clean, energy-saving and environment-friendly technology for extracting high-grade copper plate by utilizing waste containing copper |
| KR101465457B1 (en) * | 2013-12-27 | 2014-11-27 | (주) 화영 | Method for hydrometallurgical recovering copper using by low grade copper oxide and copper slag |
| CN104630823A (en) * | 2013-11-08 | 2015-05-20 | 青岛宏泰铜业有限公司 | Clean production technology of electrolytic copper by directly electrolyzing and refining waste impure copper |
| CN104947147A (en) * | 2015-06-24 | 2015-09-30 | 昆明理工大学 | Method of recovering valuable metal in copper-containing tantalum-niobium waste materials by adopting frame type anode device direct electrolysis and acid leaching combined method |
-
2016
- 2016-05-10 CN CN201610303866.9A patent/CN105821443A/en active Pending
Patent Citations (7)
| 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 |
| CN101451196A (en) * | 2007-12-03 | 2009-06-10 | 灵宝市金源矿业有限责任公司 | Wet-smelting method of copper and zinc bulk concentrate |
| CN102618722A (en) * | 2012-03-27 | 2012-08-01 | 武振龙 | Clean recovery production method of waste copper and copper-containing waste |
| CN102776527A (en) * | 2012-07-31 | 2012-11-14 | 安徽嘉伟再生资源有限公司 | Novel clean, energy-saving and environment-friendly technology for extracting high-grade copper plate by utilizing waste containing copper |
| CN104630823A (en) * | 2013-11-08 | 2015-05-20 | 青岛宏泰铜业有限公司 | Clean production technology of electrolytic copper by directly electrolyzing and refining waste impure copper |
| KR101465457B1 (en) * | 2013-12-27 | 2014-11-27 | (주) 화영 | Method for hydrometallurgical recovering copper using by low grade copper oxide and copper slag |
| CN104947147A (en) * | 2015-06-24 | 2015-09-30 | 昆明理工大学 | Method of recovering valuable metal in copper-containing tantalum-niobium waste materials by adopting frame type anode device direct electrolysis and acid leaching combined method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111826684A (en) * | 2020-07-31 | 2020-10-27 | 中华全国供销合作总社天津再生资源研究所 | Electrolytic tank and electrolytic system for producing copper powder by using scrap copper material |
| CN114892221A (en) * | 2022-05-09 | 2022-08-12 | 惠州市华盈科技有限公司 | Cyclone electrolysis method for manufacturing cathode copper sheet |
| CN115747507A (en) * | 2022-12-01 | 2023-03-07 | 中铁资源集团有限公司 | Hydrometallurgical method for recovering copper from copper oxide ore |
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Application publication date: 20160803 |