CN112795953A - Electric cobalt production method capable of recycling byproducts - Google Patents
Electric cobalt production method capable of recycling byproducts Download PDFInfo
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- CN112795953A CN112795953A CN202011578859.2A CN202011578859A CN112795953A CN 112795953 A CN112795953 A CN 112795953A CN 202011578859 A CN202011578859 A CN 202011578859A CN 112795953 A CN112795953 A CN 112795953A
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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
- C25C1/06—Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese
- C25C1/08—Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese of nickel or cobalt
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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
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0407—Leaching processes
- C22B23/0415—Leaching processes with acids or salt solutions except ammonium salts solutions
- C22B23/0423—Halogenated acids or salts thereof
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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
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/10—Hydrochloric acid, other halogenated acids or salts thereof
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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 invention discloses an electric cobalt production method with recyclable byproducts, which comprises the following steps: performing acid dissolution on the cobalt hydroxide intermediate product, performing acid dissolution by using hydrochloric acid or sulfuric acid, wherein the pH value ranges from 1.0 to 1.5, then performing impurity removal and enrichment, then performing continuous electrodeposition, wherein the voltage of a reaction tank is 2.8 to 3.5V, the current is 1 to 9000A, the temperature is 50 to 70 ℃, obtaining a cobalt sheet and chlorine after electrodeposition, mixing the chlorine with liquid alkali, controlling the temperature of the liquid alkali to be 70 to 75 ℃, reacting to generate a mixed solution of sodium chlorate and sodium chloride, and returning the mixed solution to the acid dissolution to realize coarse impurity removal. The invention carries out chemical treatment on the cobalt byproducts (chlorine), recycles the generated sodium chlorate for acid dissolution and iron removal, meets the requirement of front-stage production, solves the problem of sodium chlorate supply and solves the problem of open circuit of the cobalt byproducts.
Description
Technical Field
The invention belongs to the technical field of electric cobalt production, and particularly relates to an electric cobalt production method capable of recycling byproducts.
Background
A large amount of byproduct chlorine gas is generated in the production process of the electro-cobalt, and the chlorine gas is harmful industrial waste gas. At present, a large amount of chlorine generated in the production process of the electric cobalt is absorbed by normal-temperature caustic soda to generate a sodium hypochlorite solution.
In addition, sodium chlorate with chemical formula of NaClO is used as a dangerous chemical for acid dissolution and iron removal in the production process of the electro-cobalt3Relative molecular mass 106.44, generally white or yellowish equiaxed crystals, is salty and cool in taste, readily soluble in water, slightly soluble in ethanol. It has strong oxidizing action in acid solution, and decomposes oxygen at 300 deg.C or higher. Sodium chlorate is unstable, and is easy to combust and explode when being mixed with phosphorus, sulfur and organic matters and to absorb moisture and agglomerate. The production and transportation of sodium chlorate are extremely restricted by regulatory authorities and are a significant source of danger when used, and therefore the stable supply of sodium chlorate becomes a problem.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the method for producing the electro-cobalt with recyclable byproducts.
The invention is realized by the following technical scheme.
As shown in fig. 1, a method for producing electro-cobalt with recyclable byproducts is characterized by comprising the following steps: performing acid dissolution on the cobalt hydroxide intermediate product, wherein the pH value range is 1.0-1.5, then removing impurities and enriching, then performing continuous electrodeposition, controlling the voltage of a reaction tank to be 2.8-3.5V, the current to be 1-9000A and the temperature to be 50-70 ℃, obtaining a cobalt sheet and chlorine after electrodeposition, mixing the chlorine with liquid alkali, controlling the temperature of the liquid alkali to be 70-75 ℃, reacting to generate a mixed solution of sodium chlorate and sodium chloride, and returning the mixed solution to the acid dissolution to realize coarse impurity removal.
In the invention, the contact surface of the liquid caustic soda and the chlorine is enlarged by adopting a mode of feeding by a jet pump when the liquid caustic soda is added.
In the invention, the cobalt hydroxide intermediate product comprises 30-40% of metal elements, 0.3-1.7% of copper, 1.8-4% of manganese, 0.06-0.5% of nickel, 0.007-0.09% of iron, 0.3-0.7% of calcium, 0.15-0.25% of zinc and other impurities by mass fraction.
The invention has the beneficial technical effects that:
the invention provides an electric cobalt production method with recyclable byproducts, which is characterized in that the electric cobalt byproducts (chlorine) are subjected to chemical treatment, and the generated sodium chlorate is reused for acid dissolution and iron removal, so that the requirement of front-stage production is met, the problem of sodium chlorate supply is solved, and the problem of open circuit of the electric cobalt byproducts is solved.
Drawings
FIG. 1 is a flow chart of the method for producing the electro-cobalt of the present invention.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
Example 1
A method for producing electro-cobalt with recyclable byproducts comprises the following steps: dissolving a cobalt hydroxide intermediate product in acid, wherein the mass fraction of metal elements in the cobalt hydroxide intermediate product is 30% of cobalt, 0.3% of copper, 1.8% of manganese, 0.06% of nickel, 0.007% of iron, 0.3% of calcium, 0.15% of zinc and other impurities, dissolving in acid by using hydrochloric acid, the pH value is 1.0, then removing impurities and enriching, specifically removing iron by chemical precipitation, removing calcium, copper, zinc, manganese and nickel by using P204, removing nickel by using P204, then continuously performing electrodeposition, wherein the voltage of a reaction tank is 2.8V, the current is 1A, the temperature is 50 ℃, obtaining cobalt sheets and chlorine after electrodeposition, mixing the chlorine with liquid alkali, controlling the temperature of the liquid alkali at 70 ℃, and returning the sodium chlorate and sodium chloride mixed solution to acid dissolution to realize coarse impurity removal, namely removing iron by chemical precipitation.
When the liquid caustic soda is added, a mode of feeding by using a jet pump is adopted, and the contact surface of the liquid caustic soda and the chlorine is enlarged. The above steps are repeated, and the production system of the electric cobalt can realize closed cycle utilization of the sodium chloride solution.
Example 2
A method for producing electro-cobalt with recyclable byproducts comprises the following steps: dissolving a cobalt hydroxide intermediate product in acid, wherein the mass fraction of metal elements in the cobalt hydroxide intermediate product is that the cobalt content is 40%, the copper content is 1.7%, the manganese content is 4%, the nickel content is 0.5%, the iron content is 0.09%, the calcium content is 0.7%, the zinc content is 0.25%, and other impurities, dissolving the cobalt hydroxide intermediate product in acid by using sulfuric acid, the pH value is 1.5, then removing and enriching the impurities, then carrying out continuous electrodeposition, wherein the voltage of a reaction tank is 3.5V, the current is 9000A, the temperature is 70 ℃, obtaining cobalt sheets and chlorine after electrodeposition, mixing the chlorine with liquid alkali, controlling the liquid alkali temperature to be 75 ℃, reacting to generate a mixed solution of sodium chlorate and sodium chloride, returning the mixed solution to acid dissolution, and realizing coarse impurity removal.
When the liquid caustic soda is added, a mode of feeding by using a jet pump is adopted, and the contact surface of the liquid caustic soda and the chlorine is enlarged. The above steps are repeated, and the production system of the electric cobalt can realize closed cycle utilization of the sodium chloride solution.
The invention carries out chemical treatment on the cobalt byproducts (chlorine), recycles the generated sodium chlorate for acid dissolution and iron removal, meets the requirement of front-stage production, solves the problem of sodium chlorate supply and solves the problem of open circuit of the cobalt byproducts.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention. It should be noted that other equivalent modifications can be made by those skilled in the art in light of the teachings of the present invention, and all such modifications can be made as are within the scope of the present invention.
Claims (3)
1. The method for producing the electro-cobalt with the recyclable byproduct is characterized by comprising the following steps of: performing acid dissolution on the cobalt hydroxide intermediate product, wherein the pH value range is 1.0-1.5, then removing impurities and enriching, then performing continuous electrodeposition, controlling the voltage of a reaction tank to be 2.8-3.5V, the current to be 1-9000A and the temperature to be 50-70 ℃, obtaining a cobalt sheet and chlorine after electrodeposition, mixing the chlorine with liquid alkali, controlling the temperature of the liquid alkali to be 70-75 ℃, reacting to generate a mixed solution of sodium chlorate and sodium chloride, and returning the mixed solution to the acid dissolution to realize coarse impurity removal.
2. The method for producing electro-cobalt with recyclable byproducts as claimed in claim 1, wherein the feeding of the liquid caustic soda is performed by using a jet pump so as to enlarge the contact area between the liquid caustic soda and the chlorine gas.
3. The method for producing electro-cobalt with recyclable byproduct according to claim 1, wherein the cobalt hydroxide intermediate contains 30 to 40 mass percent of metal elements, 0.3 to 1.7 mass percent of copper, 1.8 to 4 mass percent of manganese, 0.06 to 0.5 mass percent of nickel, 0.007 to 0.09 mass percent of iron, 0.3 to 0.7 mass percent of calcium, 0.15 to 0.25 mass percent of zinc, and other impurities.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2041276C1 (en) * | 1988-11-30 | 1995-08-09 | Институт металлофизики АН Украины | Cobalt cake reprocessing method |
| CN101008089A (en) * | 2006-12-29 | 2007-08-01 | 金川集团有限公司 | Electrodeposit cobalt method for insoluble anode |
| CN101463427A (en) * | 2008-11-27 | 2009-06-24 | 佛山市邦普镍钴技术有限公司 | Method for recycling valuable metal from cobalt white alloy |
| CN102230185A (en) * | 2011-06-20 | 2011-11-02 | 南通新玮镍钴科技发展有限公司 | Device and method for absorbing chlorine acid mist in electrodeposited cobalt production process |
| CN102330111A (en) * | 2011-09-22 | 2012-01-25 | 浙江华友钴业股份有限公司 | Method for preparing electric deposited cobalt |
| CN102808194A (en) * | 2012-07-04 | 2012-12-05 | 嘉兴科菲冶金科技股份有限公司 | Process for purifying cobalt by electro-depositing cobalt chloride solution through cyclone electrolysis technology and reclaiming residual chlorine |
| CN105274337A (en) * | 2014-10-06 | 2016-01-27 | 董亚伦 | Method for recovering precious metal from waste circuit boards |
| CN106835194A (en) * | 2017-01-12 | 2017-06-13 | 江苏凯力克钴业股份有限公司 | A kind of cobalt chloride electrodeposition process |
| CN107128959A (en) * | 2017-05-10 | 2017-09-05 | 东北大学 | A kind of bauxite salt Ore Leaching substep electrolytic preparation aluminum oxide and method of comprehensive utilization |
| CN108517403A (en) * | 2018-06-30 | 2018-09-11 | 贵州中伟资源循环产业发展有限公司 | A kind of method of metallic cobalt battery grade cobalt sulfate |
| CN108624759A (en) * | 2018-04-16 | 2018-10-09 | 北京科技大学 | A method of the comprehensively recovering valuable metal from white cigarette dirt |
| CN111500851A (en) * | 2020-04-28 | 2020-08-07 | 淄博包钢灵芝稀土高科技股份有限公司 | Roasting method of rare earth concentrate |
-
2020
- 2020-12-28 CN CN202011578859.2A patent/CN112795953A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2041276C1 (en) * | 1988-11-30 | 1995-08-09 | Институт металлофизики АН Украины | Cobalt cake reprocessing method |
| CN101008089A (en) * | 2006-12-29 | 2007-08-01 | 金川集团有限公司 | Electrodeposit cobalt method for insoluble anode |
| CN101463427A (en) * | 2008-11-27 | 2009-06-24 | 佛山市邦普镍钴技术有限公司 | Method for recycling valuable metal from cobalt white alloy |
| CN102230185A (en) * | 2011-06-20 | 2011-11-02 | 南通新玮镍钴科技发展有限公司 | Device and method for absorbing chlorine acid mist in electrodeposited cobalt production process |
| CN102330111A (en) * | 2011-09-22 | 2012-01-25 | 浙江华友钴业股份有限公司 | Method for preparing electric deposited cobalt |
| CN102808194A (en) * | 2012-07-04 | 2012-12-05 | 嘉兴科菲冶金科技股份有限公司 | Process for purifying cobalt by electro-depositing cobalt chloride solution through cyclone electrolysis technology and reclaiming residual chlorine |
| CN105274337A (en) * | 2014-10-06 | 2016-01-27 | 董亚伦 | Method for recovering precious metal from waste circuit boards |
| CN106835194A (en) * | 2017-01-12 | 2017-06-13 | 江苏凯力克钴业股份有限公司 | A kind of cobalt chloride electrodeposition process |
| CN107128959A (en) * | 2017-05-10 | 2017-09-05 | 东北大学 | A kind of bauxite salt Ore Leaching substep electrolytic preparation aluminum oxide and method of comprehensive utilization |
| CN108624759A (en) * | 2018-04-16 | 2018-10-09 | 北京科技大学 | A method of the comprehensively recovering valuable metal from white cigarette dirt |
| CN108517403A (en) * | 2018-06-30 | 2018-09-11 | 贵州中伟资源循环产业发展有限公司 | A kind of method of metallic cobalt battery grade cobalt sulfate |
| CN111500851A (en) * | 2020-04-28 | 2020-08-07 | 淄博包钢灵芝稀土高科技股份有限公司 | Roasting method of rare earth concentrate |
Non-Patent Citations (4)
| Title |
|---|
| 《当代中国有色金属工业》编委会: "《新中国有色金属 镍钴工业》", 31 December 1986, 《当代中国有色金属工业》编委会 * |
| 《重大事故控制实用手册》: "《重大事故控制实用手册》", 31 October 1993, 中国劳动出版社，第1版， * |
| 翟秀静等，: "《重金属冶金学》", 30 June 2019, 北京冶金工业出版社，第2版， * |
| 马荣骏编著，: "《萃取冶金》", 31 August 2009, 北京冶金工业出版社，第1版， * |
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Application publication date: 20210514 |