CA2443877A1 - Process for producing cobalt solution of low manganese concentration - Google Patents
Process for producing cobalt solution of low manganese concentration Download PDFInfo
- Publication number
- CA2443877A1 CA2443877A1 CA002443877A CA2443877A CA2443877A1 CA 2443877 A1 CA2443877 A1 CA 2443877A1 CA 002443877 A CA002443877 A CA 002443877A CA 2443877 A CA2443877 A CA 2443877A CA 2443877 A1 CA2443877 A1 CA 2443877A1
- Authority
- CA
- Canada
- Prior art keywords
- cobalt solution
- manganese
- cobalt
- stage
- producing
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- 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
- C22B23/0453—Treatment or purification of solutions, e.g. obtained by leaching
- C22B23/0461—Treatment or purification of solutions, e.g. obtained by leaching by chemical methods
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/02—Oxides; Hydroxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G51/00—Compounds of cobalt
-
- 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
- C22B23/06—Refining
-
- 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
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
-
- 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
- C22B47/00—Obtaining manganese
- C22B47/0018—Treating ocean floor nodules
- C22B47/009—Treating ocean floor nodules refining, e.g. separation of metals obtained by the above methods
-
- 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
-
- 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
- C22B47/00—Obtaining manganese
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Ocean & Marine Engineering (AREA)
- Oceanography (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The present invention provides a process for producing a cobalt solution of low manganese concentration which can increase direct recovery rate of cobalt by industrially advantageously removing manganese from a cobalt solution containing manganese as an impurity by the oxidative neutralization process.
The process containing 2 stages for producing a cobalt solution of low manganese concentration, the first stage being for oxidative neutralization of the cobalt solution controlled at an oxidation-reduction potential of 900mV or more (based on an Ag/AgCl electrode) and pH of 3 or less to remove most of the manganese in the form of oxide precipitate having a Co/Mn ratio of 0.3 to 1.0 by weight, and the second stage being for the continued oxidative neutralization of the cobalt solution produced in the first stage to remove a small quantity of the residual manganese in the form of oxide precipitate and thereby to produce the high-purity cobalt solution containing manganese at 0.05g/L or less, while keeping the same oxidation-reduction potential and pH conditions for the cobalt solution.
The process containing 2 stages for producing a cobalt solution of low manganese concentration, the first stage being for oxidative neutralization of the cobalt solution controlled at an oxidation-reduction potential of 900mV or more (based on an Ag/AgCl electrode) and pH of 3 or less to remove most of the manganese in the form of oxide precipitate having a Co/Mn ratio of 0.3 to 1.0 by weight, and the second stage being for the continued oxidative neutralization of the cobalt solution produced in the first stage to remove a small quantity of the residual manganese in the form of oxide precipitate and thereby to produce the high-purity cobalt solution containing manganese at 0.05g/L or less, while keeping the same oxidation-reduction potential and pH conditions for the cobalt solution.
Claims (7)
1. A process for producing a cobalt solution of low manganese concentration, comprising 2 stages for producing a cobalt solution of low manganese concentration by incorporating an oxidant and neutralizer in a cobalt solution containing manganese as an impurity, the first stage being for oxidative neutralization of the cobalt solution controlled at an oxidation-reduction potential of 900mV or more (based on an Ag/AgCl electrode) and pH of 3 or less to remove most of the manganese in the form of oxide precipitate having a Co/Mn ratio of 0.3 to 1.0 by weight, and the second stage being for the continued oxidative neutralization of the cobalt solution produced in the first stage to remove a small quantity of the residual manganese in the form of oxide precipitate and thereby to produce the high-purity cobalt solution containing manganese at 0.05g/L or less, while keeping the same oxidation-reduction potential and pH conditions for the cobalt solution.
2. A process for producing a cobalt solution of low manganese concentration, comprising 3 stages for producing a cobalt solution of low manganese concentration by incorporating an oxidant and neutralizer in a cobalt solution containing manganese as an impurity, the first stage being for oxidative neutralization of the cobalt solution controlled at an oxidation-reduction potential of 900mV or more (based on an Ag/AgCl electrode) and pH of 3 or less to remove most of the manganese in the form of oxide precipitate having a Co/Mn ratio of 0.3 to 1.0 by weight, the second stage being for the continued oxidative neutralization of the cobalt solution produced in the first stage to remove a small quantity of the residual manganese in the form of oxide precipitate and thereby to produce the high-purity cobalt solution containing manganese at 0.05g/L or less, while keeping the same oxidation-reduction potential and pH conditions for the cobalt solution, and the third stage being for dissolution of the precipitate containing the separated manganese oxide and cobalt hydroxide in a mineral acid to keep the solution at a pH of 0.05 to 2.0, and also for recycling the resulting slurry back to the first stage.
3. The process according to Claim 1 or 2 for producing a cobalt solution of low manganese concentration, wherein said cobalt solution is oxidized/neutralized while being controlled at an oxidation-reduction potential of 950 to 1050mV (based on an Ag/AgCl electrode) and pH of 2.4 to 2.8.
4. The process according to Claim 1 or 2 for producing a cobalt solution of low manganese concentration, wherein said cobalt solution containing manganese as an impurity is a cobalt chloride solution.
5. The process according to Claim 1 or 2 for producing a cobalt solution of low manganese concentration, wherein said oxidant is at least one type selected from the group consisting of chlorine, hypochlorous acid and ozone.
6. The process according to Claim 1 or 2 for producing a cobalt solution of low manganese concentration, wherein said neutralizer is at least one type selected from the group consisting of hydroxide and carbonate of an alkali and alkali-earth metal, and cobalt carbonate.
7. The process according to Claim 2 for producing a cobalt solution of low manganese concentration, wherein said the solution is controlled at a pH of 0.1 to 1.5 in said third stage.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002291489A JP4240982B2 (en) | 2002-10-03 | 2002-10-03 | Method for producing cobalt solution with low manganese concentration |
| JP2002-291489 | 2002-10-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2443877A1 true CA2443877A1 (en) | 2004-04-03 |
| CA2443877C CA2443877C (en) | 2010-09-14 |
Family
ID=29417291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2443877A Expired - Fee Related CA2443877C (en) | 2002-10-03 | 2003-10-02 | Process for producing cobalt solution of low manganese concentration |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4240982B2 (en) |
| AU (1) | AU2003246344B2 (en) |
| CA (1) | CA2443877C (en) |
| GB (1) | GB2394469B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4801372B2 (en) * | 2005-05-10 | 2011-10-26 | 正同化学工業株式会社 | Method for removing manganese from cobalt sulfate solution |
| JP6221968B2 (en) * | 2014-07-01 | 2017-11-01 | 住友金属鉱山株式会社 | Purification method of cobalt chloride solution |
| PL3592706T3 (en) * | 2017-03-08 | 2023-09-04 | Umicore | Precursors of cathode materials for a rechargeable lithium ion battery |
| CN110983053A (en) * | 2019-12-26 | 2020-04-10 | 甘肃睿思科新材料有限公司 | Method for separating nickel, cobalt and manganese in nickel, cobalt and manganese raw material with high manganese-cobalt ratio |
| CN114196826A (en) * | 2020-09-17 | 2022-03-18 | 常宁市华兴冶化实业有限责任公司 | Method for recovering and producing cobalt sulfate heptahydrate from cobalt slag |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000056943A1 (en) * | 1999-03-24 | 2000-09-28 | Lakefield Research Limited | Purification of cobalt solutions containing iron and manganese with oxidation mixture of s02 and oxygen |
-
2002
- 2002-10-03 JP JP2002291489A patent/JP4240982B2/en not_active Expired - Lifetime
-
2003
- 2003-09-17 AU AU2003246344A patent/AU2003246344B2/en not_active Expired
- 2003-10-01 GB GB0322971A patent/GB2394469B/en not_active Expired - Lifetime
- 2003-10-02 CA CA2443877A patent/CA2443877C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| GB0322971D0 (en) | 2003-11-05 |
| AU2003246344B2 (en) | 2008-01-24 |
| CA2443877C (en) | 2010-09-14 |
| JP2004123469A (en) | 2004-04-22 |
| JP4240982B2 (en) | 2009-03-18 |
| GB2394469B (en) | 2007-02-28 |
| AU2003246344A1 (en) | 2004-04-22 |
| GB2394469A (en) | 2004-04-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20201002 |