CN101148704A - Method for separating and reclaiming copper from cobalt chloride solution - Google Patents
Method for separating and reclaiming copper from cobalt chloride solution Download PDFInfo
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- CN101148704A CN101148704A CNA2007101644006A CN200710164400A CN101148704A CN 101148704 A CN101148704 A CN 101148704A CN A2007101644006 A CNA2007101644006 A CN A2007101644006A CN 200710164400 A CN200710164400 A CN 200710164400A CN 101148704 A CN101148704 A CN 101148704A
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- chloride solution
- cobalt chloride
- hydrochloric acid
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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
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Abstract
The process of recovering copper from cobalt chloride solution includes the first ion exchange with macroporous acrylonitrile anionic exchange resin to adsorb copper ion from cobalt chloride solution at certain pH condition; and the subsequent recovering copper with hydrochloric acid solution in certain concentration in controlled condition. The process can purify cobalt chloride solution and recover copper, and is easy in control, high in copper recovering rate and pollution-less.
Description
Technical field
A kind of from cobalt chloride solution the method for recovering copper, relate in a kind of electrolysis, the electrodeposited cobalt production process, by the copper in the technological process Separation and Recovery chlorination cobalt liquors such as adjustment solution acidity, resins exchange, wash-out and resin regeneration, thus the method for raising electrolysis, electrodeposited cobalt quality product and efficient recovery valuable metal.
Technical background
At present, in electrolysis, in the production process of electrodeposited cobalt, cobalt chloride solution purifies copper removal 717 resins, but 717 resins can only adsorb univalent copper ion, can not adsorb bivalent cupric ion, decopper(ing) need add reductive agents such as S-WAT earlier in the production, cupric is reduced into monovalence copper, again by 717 resin copper removals, when the wash-out regeneration of resin, after elder generation is oxidized to cupric with oxygenant with the monovalence copper on the resin, use certain density hydrochloric acid elutriant flush away cupric again, this method reagent consumption is big, the cost height, complex process, technical process is long, and introduces other foreign ion easily in sepn process, causes the secondary pollution of cobalt chloride solution.
Summary of the invention
Purpose of the present invention is exactly the deficiency at above-mentioned technology, provide that a kind of reagent consumption is few, cost is low, technology is simple, and in sepn process, do not introduce hetero-ion, effectively improve the quality product of electrolysis, electrodeposited cobalt and can reclaim the method for recovering copper from cobalt chloride solution of copper.
The objective of the invention is to be achieved through the following technical solutions.
A kind of from cobalt chloride solution the method for recovering copper, it is characterized in that adopting the novel acrylic nitrile is macroporous anion exchange resin, and copper in the cobalt chloride solution is removed recovery, its technological process is followed successively by:
A. adjust the acidity of cobalt chloride solution, control its pH value below 5;
B. the cobalt chloride solution that will adjust acidity is the large pore anion weakly basic exchange resin by the novel acrylic nitrile, purifies the copper that removes in the solution;
C. the hydrochloric acid soln of using 1～3N is as elutriant, and the resin after the absorption is soaked 10～60min, then elutriant carried out wash-out by resin, to resin colourless till, the hydrochloric acid soln consumption is 1～5 times of resin volume;
D. the hydrochloric acid of using 0.5～2N is as regenerated liquid, and regenerated liquid hydrochloric acid is by eluted resins, and the time is 20～24 hours, and the regenerated liquid consumption is 1～1.5 times of resin, uses the water wash resin standby greater than 2 to pH at last.Method of the present invention adopts ion exchange process, with the copper Separation and Recovery in the cobalt chloride solution, by adjusting pH value of solution value, ion-exchange, wash-out, renovation process, with the copper Separation and Recovery in the solution, resin is regenerated in order to reusing.Method of the present invention is easy to control, copper removes, rate of recovery height, and the Separation and Recovery process is pollution-free.
Embodiment
A kind of from cobalt chloride solution the method for recovering copper, adopting the novel acrylic nitrile is macroporous anion exchange resin, and copper in the cobalt chloride solution is removed recovery, its technological process is followed successively by: a. adjusts the acidity of cobalt chloride solution, controls its pH value below 5; B. the cobalt chloride solution that will adjust acidity is the large pore anion weakly basic exchange resin by the novel acrylic nitrile, purifies the copper that removes in the solution; C. the hydrochloric acid soln of using 1～3N is as elutriant, and the resin after the absorption is soaked 10～60min, then elutriant carried out wash-out by resin, to resin colourless till, the hydrochloric acid soln consumption is 1～5 times of resin volume; D. the hydrochloric acid of using 0.5～2N is as regenerated liquid, and regenerated liquid hydrochloric acid is by eluted resins, and the time is 20～24 hours, and the regenerated liquid consumption is 1～1.5 times of resin, uses the water wash resin standby greater than 2 to pH at last.
During operation, for purifying cobalt chloride solution, remove copper wherein, the present invention selects the pH that adjusts solution to carry out under certain acidity, according to this resin properties, in the process of ion-exchange separating copper, rising with the pH value of solution value, exchange is more prone to carry out, but when the pH value greater than 5 the time, the cobalt in the solution begins to precipitate because of the too high form with cobaltous hydroxide of local pH value, carries impurity copper secretly, the cobalt loss amount is big, therefore the pH value should be controlled at below 5, can guarantee the copper effective elimination in the solution also can be prevented the precipitation of cobalt under this pH value, adopting the novel acrylic eyeball is that large pore anion resin exchanges and need not cupric is reduced into monovalence copper, so neither increases cost and can not cause secondary pollution to cobalt chloride again.After the exchange, carry out wash-out, reclaim the copper after exchanging with certain density hydrochloric acid, the concentration of wash-out time control relieving haperacidity is between 1.5～2N, and directly wash-out goes out the cupric in the resin, and eluting rate can reach more than 98%, the copper recovery height is compared with original method, need not monovalence copper is oxidized to cupric.When resin being regenerated, the hydrochloric acid soln with 1N washed 20～24 hours earlier, used the water wash resin then again, and the pH value that makes resin is greater than 2, with standby.
Embodiment 1
A kind of from cobalt chloride solution the method for recovering copper, adopting HPA type vinylformic acid nitrile is macroporous anion exchange resin, and copper in the cobalt chloride solution is removed recovery, its technological process is followed successively by: a. adjusts the acidity of cobalt chloride solution, controls its pH value below 5; B. the cobalt chloride solution that will adjust acidity is the large pore anion weakly basic exchange resin by the novel acrylic nitrile, purifies the copper that removes in the solution; C. the hydrochloric acid soln of using 1～3N is as elutriant, and the resin after the absorption is soaked 10～60min, then elutriant carried out wash-out by resin, to resin colourless till, the hydrochloric acid soln consumption is 1～5 times of resin volume; D. the hydrochloric acid of using 0.5～2N is as regenerated liquid, and regenerated liquid hydrochloric acid is by eluted resins, and the time is 20～24 hours, and the regenerated liquid consumption is 1～1.5 times of resin, uses the water wash resin standby greater than 2 to pH at last.
Embodiment 2
A kind of from cobalt chloride solution the method for recovering copper, adopting novel PA type vinylformic acid nitrile is macroporous anion exchange resin, copper in the cobalt chloride solution is removed recovery, and its technological process is followed successively by: a. adjusts the acidity of cobalt chloride solution, controls its pH value below 7; B. the cobalt chloride solution that will adjust acidity is the large pore anion weakly basic exchange resin by the novel acrylic nitrile, purifies the copper that removes in the solution; C. use NaOH:1%; The HCl:2-3% mixing solutions is as elutriant, and the resin after the absorption is soaked 10～30min, then elutriant carried out wash-out by resin, to resin colourless till, the mixing solutions consumption be the resin volume 2-3 doubly; D. use NaOH:1%; The HCl:2-3% mixing solutions is as regenerated liquid, and regenerated liquid is by eluted resins, and the time is 30-60 minute, and the regenerated liquid consumption is 2-3 a times of resin, uses the water wash resin standby greater than 1 to pH at last.
Embodiment 3
A kind of from cobalt chloride solution the method for recovering copper, adopting D311 type vinylformic acid nitrile is macroporous anion exchange resin, and copper in the cobalt chloride solution is removed recovery, its technological process is followed successively by: a. adjusts the acidity of cobalt chloride solution, controls its pH value below 7; B. the cobalt chloride solution that will adjust acidity is the large pore anion weakly basic exchange resin by the novel acrylic nitrile, purifies the copper that removes in the solution; C. use NaOH:1%; The HCl:2-3% mixing solutions is as elutriant, and the resin after the absorption is soaked 10～30min, then elutriant carried out wash-out by resin, to resin colourless till, the mixing solutions consumption be the resin volume 2-3 doubly; D. use NaOH:1%; The HCl:2-3% mixing solutions is as regenerated liquid, and regenerated liquid is by eluted resins, and the time is 30-60 minute, and the regenerated liquid consumption is 2-3 a times of resin, uses the water wash resin standby greater than 1 to pH at last.
Claims (1)
1. the method for a recovering copper from cobalt chloride solution, it is characterized in that adopting the novel acrylic nitrile is macroporous anion exchange resin, and copper in the cobalt chloride solution is removed recovery, its technological process is followed successively by:
A. adjust the acidity of cobalt chloride solution, control its pH value below 5;
B. the cobalt chloride solution that will adjust acidity is the large pore anion weakly basic exchange resin by the novel acrylic nitrile, purifies the copper that removes in the solution;
C. the hydrochloric acid soln of using 1～3N is as elutriant, and the resin after the absorption is soaked 10～60min, then elutriant carried out wash-out by resin, to resin colourless till, the hydrochloric acid soln consumption is 1～5 times of resin volume;
D. the hydrochloric acid of using 0.5～2N is as regenerated liquid, and regenerated liquid hydrochloric acid is by eluted resins, and the time is 20～24 hours, and the regenerated liquid consumption is 1～1.5 times of resin, uses the water wash resin standby greater than 2 to pH at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101644006A CN100554451C (en) | 2007-11-06 | 2007-11-06 | A kind of from cobalt chloride solution the method for recovering copper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101644006A CN100554451C (en) | 2007-11-06 | 2007-11-06 | A kind of from cobalt chloride solution the method for recovering copper |
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| Publication Number | Publication Date |
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| CN101148704A true CN101148704A (en) | 2008-03-26 |
| CN100554451C CN100554451C (en) | 2009-10-28 |
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| CNB2007101644006A Active CN100554451C (en) | 2007-11-06 | 2007-11-06 | A kind of from cobalt chloride solution the method for recovering copper |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815763A (en) * | 2012-09-17 | 2012-12-12 | 工信华鑫科技有限公司 | Method for implementing copper-cobalt separation, enrichment and purification by using heavy metal adsorbing material |
| CN102978395A (en) * | 2012-12-03 | 2013-03-20 | 吉林大学 | Method for separating and enriching Cu and Co from sulfate diluted solution containing Co |
| CN109929999A (en) * | 2019-03-28 | 2019-06-25 | 中南大学 | A method of the selective recovery copper from chloride mixed liquor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1065494A (en) * | 1992-05-16 | 1992-10-21 | 湖南省煤炭科学研究所 | A kind of novel method of from contain vanadium solution, extracting Vanadium Pentoxide in FLAKES |
| CN1055903C (en) * | 1996-06-11 | 2000-08-30 | 高大明 | Technology for treatment of waste liquid containing cyanogen by ion exchange method |
-
2007
- 2007-11-06 CN CNB2007101644006A patent/CN100554451C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815763A (en) * | 2012-09-17 | 2012-12-12 | 工信华鑫科技有限公司 | Method for implementing copper-cobalt separation, enrichment and purification by using heavy metal adsorbing material |
| CN102978395A (en) * | 2012-12-03 | 2013-03-20 | 吉林大学 | Method for separating and enriching Cu and Co from sulfate diluted solution containing Co |
| CN102978395B (en) * | 2012-12-03 | 2014-01-15 | 吉林大学 | Method for separating and enriching Cu and Co from sulfate diluted solution containing Co |
| CN109929999A (en) * | 2019-03-28 | 2019-06-25 | 中南大学 | A method of the selective recovery copper from chloride mixed liquor |
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| Publication number | Publication date |
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| CN100554451C (en) | 2009-10-28 |
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Owner name: JINCHUAN GROUP CO., LTD. Free format text: FORMER NAME: JINCHUAN GROUP CORP., LTD. |
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Address after: 737103 Jinchuan Road, Gansu, China, No. 98, No. Patentee after: Jinchuan Group Co., Ltd. Address before: 737103 Jinchuan Road, Gansu, China, No. 98, No. Patentee before: Jinchuan Group Corp., Ltd. |