GB769120A - Improvements in and relating to the separation of nickel from cobalt - Google Patents
Improvements in and relating to the separation of nickel from cobaltInfo
- Publication number
- GB769120A GB769120A GB428255A GB428255A GB769120A GB 769120 A GB769120 A GB 769120A GB 428255 A GB428255 A GB 428255A GB 428255 A GB428255 A GB 428255A GB 769120 A GB769120 A GB 769120A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nickel
- solution
- hydroxides
- reduction
- cobalt
- 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.)
- Expired
Links
Classifications
-
- 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
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
-
- 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
- C22B23/0476—Separation of nickel from cobalt
- C22B23/0484—Separation of nickel from cobalt in acidic type solutions
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A solution containing nickel and cobalt sulphates and/or chlorides and containing the metals in a weight ratio Ni:Co higher than 1 is treated to separate the metals by precipitating together the nickel and cobalt as hydroxides, removing the precipitate and adding it to a further quantity of the primary solution, subjecting the solution containing suspended hydroxides to a reduction with a reducing gas at a temperature above 100 DEG C. and at super-atmospheric pressure, thus precipitating nickel as metal from solution and concentrating cobalt in the solution, the amount of hydroxides added being such that the pH during reduction does not fall below 2. The hydroxides may be progressively added and dissolved in the solution during reduction so that the pH is maintained between 2 and 3. The solution remaining after reduction may be treated to remove any residual nickel by the methods disclosed in Specifications 650,595, 655,149 and 683,679. Specification 269,164 [Class 1(iii)], also is referred to.ALSO:A solution containing nickel and cobalt sulphates and/or chlorides and containing the metals in a weight ratio Ni : Co higher than 1 is treated to separate the metals by precipitating together the nickel and cobalt as hydroxides, removing the precipitate and adding it to a further quantity of the primary solution, subjecting the solution containing suspended hydroxides to a reduction with a reducing gas such as hydrogen at a temperature above 100 DEG C. and at superatmospheric pressure e.g. 15-45 atmospheres, and removing the precipitated nickel, the amount of hydroxides introduced into the primary solution being such that the pH of the solution during the reduction does not fall below 2. The product nickel should contain less than 1 part of cobalt to 100 parts of nickel. The hydroxides may be progressively introduced and dissolved in the solution during reduction so that the pH is maintained between 2 and 3. The solution remaining after reduction may be treated to remove any residual nickel by the methods disclosed in Specifications 650,595, 655,149 and 683,679, [all in Group III]. Specification 269,164 [Class 82(1)], also is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB428255A GB769120A (en) | 1955-02-14 | 1955-02-14 | Improvements in and relating to the separation of nickel from cobalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB428255A GB769120A (en) | 1955-02-14 | 1955-02-14 | Improvements in and relating to the separation of nickel from cobalt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB769120A true GB769120A (en) | 1957-02-27 |
Family
ID=9774190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB428255A Expired GB769120A (en) | 1955-02-14 | 1955-02-14 | Improvements in and relating to the separation of nickel from cobalt |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB769120A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1119241B (en) * | 1957-12-18 | 1961-12-14 | Metallurg De Hoboken Sa Soc Ge | Process for the selective separation of nickel from aqueous cobalt-containing sulfate or chloride solutions |
-
1955
- 1955-02-14 GB GB428255A patent/GB769120A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1119241B (en) * | 1957-12-18 | 1961-12-14 | Metallurg De Hoboken Sa Soc Ge | Process for the selective separation of nickel from aqueous cobalt-containing sulfate or chloride solutions |
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