GB761129A - Method of separating metal values from ammoniacal solutions - Google Patents
Method of separating metal values from ammoniacal solutionsInfo
- Publication number
- GB761129A GB761129A GB927453A GB927453A GB761129A GB 761129 A GB761129 A GB 761129A GB 927453 A GB927453 A GB 927453A GB 927453 A GB927453 A GB 927453A GB 761129 A GB761129 A GB 761129A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- nickel
- copper
- cobalt
- sulphide
- 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
- 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
- C01G53/00—Compounds of nickel
- C01G53/12—Complexes with ammonia
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
In the recovery of nickel and/or cobalt from an ammonical solution containing free ammonia, dissolved nickel and cobalt and dissolved values of at least one other metal the sulphide of which is of lower solubility in the ammoniacal solution than nickel sulphide, especially copper, the solution is provided with at least one sulphur compound of the group consisting of polythionates having more than two sulphur atoms and thiosulphates in an amount sufficient to provide sulphur atoms to combine with the values of other metal or metals and the solution is heated for a period of time to reduce the free ammonia content and to convert the said other metals to and precipitate them as, sulphides, which are separated, after which the purified nickel and cobalt solution may be treated for the recovery of nickel and cobalt by conventional means, e.g. by treating the solution with sulphuric acid to recover nickel and/or cobalt ammonium sulphates or by treatment with hydrogen at elevated temperature and pressure to recover the metals. The initial ammoniacal solution may be obtained by an oxidative leaching of mineral sulphides with strong aqueous ammonia, as in Specification 670.184, whereby in general the necessary polythionate or thiosulphate ions are formed in situ, or if necessary, can be added in the form of ammonium trithionate or thiosulphate. The initial leaching to obtain the ammoniacal solution is preferably conducted by passing mineral sulphides and leach solutions in counter current in a plurality of stages, the pregnant leach solution being discharged from and the fresh mineral sulphides being charged to the first stage of the series; fresh ammonia solution may be charged to any of the leaching stages. According to an example a nickel, copper, cobalt sulphide concentrate containing 11 per cent nickel and 2 per cent copper was leached in successive stages with aqueous ammonia at 60 to 90 DEG C. with an oxygen partial pressure of 1.75 kg. per cm2 and a total pressure of 5.5 to 7 kg. per cm2. The leach solution contained about 90 gms of nickel and 20 of copper per litre. The partially leached solids from the first leaching stage were passed to the second and successive leaching stages and the pregnant leach solution from the first stage, rich in thiosulphate and polythionate ions, was passed to a heating stage where is was heated to 95 to 100 DEG C. thus removing the ammonia (which was recovered and returned to the leaching stage) and reducing the copper content to 0.5 to 1.5 grams per litre. No nickel or cobalt was precipitated. The precipitated copper sulphide was separated and the residual solution passed to a stripping stage to precipitate the remainder of the copper as sulphide by adding a further thiosulphate or polythionate or hydrogen sulphfiide, or alternatively by adding sulphide concentarte of the type employed in the leaching stage e.g. pyrrhotite, which is oxidized to provide the necessary polythionate or thiosulphate ions for example by heating at 88 to 100 DEG C. for thirty minutes. The undissolved concentrates and precipitated copper sulphide were returned to the leaching stage and the copper free solution was passed to a nickel and/or cobalt recovery step. ... Reference has been directed by the Comptroller to Specification 722,373.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB927453A GB761129A (en) | 1953-04-02 | 1953-04-02 | Method of separating metal values from ammoniacal solutions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB927453A GB761129A (en) | 1953-04-02 | 1953-04-02 | Method of separating metal values from ammoniacal solutions |
Publications (1)
Publication Number | Publication Date |
---|---|
GB761129A true GB761129A (en) | 1956-11-14 |
Family
ID=9868803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB927453A Expired GB761129A (en) | 1953-04-02 | 1953-04-02 | Method of separating metal values from ammoniacal solutions |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB761129A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1154447B (en) * | 1958-03-11 | 1963-09-19 | Sherritt Gordon Mines Ltd | Process for the separation of non-ferrous metals from their ammoniacal solution containing nickel and / or cobalt |
WO2023284441A1 (en) * | 2021-07-15 | 2023-01-19 | 广东邦普循环科技有限公司 | Method for preparing nickel sulfate from nickel-iron-copper alloy |
-
1953
- 1953-04-02 GB GB927453A patent/GB761129A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1154447B (en) * | 1958-03-11 | 1963-09-19 | Sherritt Gordon Mines Ltd | Process for the separation of non-ferrous metals from their ammoniacal solution containing nickel and / or cobalt |
WO2023284441A1 (en) * | 2021-07-15 | 2023-01-19 | 广东邦普循环科技有限公司 | Method for preparing nickel sulfate from nickel-iron-copper alloy |
GB2620310A (en) * | 2021-07-15 | 2024-01-03 | Guangdong Brunp Recycling Technology Co Ltd | Method for preparing nickel sulfate from nickel-iron-copper alloy |
US11952289B2 (en) | 2021-07-15 | 2024-04-09 | Guangdong Brunp Recycling Technology Co., Ltd. | Method for preparing nickel sulfate from nickel-iron-copper alloy |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5120353A (en) | Hydrometallurgic method for processing raw materials containing zinc sulphide | |
US2726934A (en) | Hydrometallurgical method of extracting metal values | |
IE44035L (en) | Recovering zinc. | |
EP0119685B1 (en) | Hydrometallurgical arsenopyrite process | |
EP0071684A1 (en) | Process for recovering zinc from zinc ferrite material | |
ES246571A1 (en) | Treatment of sulfide minerals | |
ES437687A1 (en) | Method of obtaining copper from copper-bearing ores | |
NO129913B (en) | ||
ES449347A1 (en) | A method to recover and/or other non-ferreal metals with inclusion of precise metals, from a raw material of sulfurs. (Machine-translation by Google Translate, not legally binding) | |
US2647820A (en) | Process for recovering nickel and/or cobalt ammonium sulfate from solutions containing nickel and/or cobalt values | |
ES399959A1 (en) | Hydrometallurgical process for extraction of copper and sulphur from copper iron sulphides | |
KR830010208A (en) | Process for recovering zinc from zinc-containing sulfides | |
US2693404A (en) | Method of separating metal values from ammoniacal solutions | |
US2927017A (en) | Recovery of metal values from complex ores | |
US2588265A (en) | Isolation of nickel sulfide | |
US4168969A (en) | Recovery of silver, copper, zinc and lead from partially roasted pyrite concentrate by acid chloride leaching | |
GB761129A (en) | Method of separating metal values from ammoniacal solutions | |
GB1067007A (en) | Method of leaching high grade nickel matte | |
US3848054A (en) | Recovery of cobalt values from the leached ore tailings of a conventional ammoniacal leaching process | |
US2836490A (en) | Method of treating solutions containing metal values | |
KR20030043957A (en) | Pressure leaching process for zinc | |
US2822264A (en) | Separating nickel from solutions containing nickel and cobalt | |
GB1375055A (en) | ||
US3088803A (en) | Method of separating metal values from ammoniacal solutions | |
US1634497A (en) | Metallurgical process |