GR1003306B - Method of processing minerals under pressure and high temperature for achieving selective solubility of nickel and cobalt - Google Patents
Method of processing minerals under pressure and high temperature for achieving selective solubility of nickel and cobaltInfo
- Publication number
- GR1003306B GR1003306B GR980100484A GR980100484A GR1003306B GR 1003306 B GR1003306 B GR 1003306B GR 980100484 A GR980100484 A GR 980100484A GR 980100484 A GR980100484 A GR 980100484A GR 1003306 B GR1003306 B GR 1003306B
- Authority
- GR
- Greece
- Prior art keywords
- nickel
- cobalt
- sulphadisation
- ore
- laterite
- Prior art date
Links
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention concerns a method for the selective dissolution of nickel and cobalt from laterite ores with the assistance of (a) sulphadisation and (b) oxidative extraction at elevated temperature and pressure. Sulphadisation of the ore takes place in conditions of elevated pressure and temperature in an inert atmosphere. This processing precedes the oxidative extraction during which the nickel and cobalt are selectively dissolved from the nickel-containing laterite, while the dissolution of the iron in the extraction solution is minimised. The stage of sulphadisation of the laterite ore is the main point of the invention and contributes to the increased dissolution of the nickel and cobalt to a significant percentage. The main point of this invention is the sulphadisation of the laterite ore and the subsequent production of a solution of sulphuric acid in situ in sufficient quantity to dissolve the nickel and cobalt contained in the ore.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GR98100484 | 1998-12-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GR1003306B true GR1003306B (en) | 2000-01-25 |
Family
ID=10943563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GR980100484A GR1003306B (en) | 1998-12-31 | 1998-12-31 | Method of processing minerals under pressure and high temperature for achieving selective solubility of nickel and cobalt |
Country Status (1)
Country | Link |
---|---|
GR (1) | GR1003306B (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1354668A (en) * | 1972-04-17 | 1974-06-05 | Int Nickel Canada | Process for sulphiding nickel-containing materials |
GB1365666A (en) * | 1972-05-08 | 1974-09-04 | Int Nickel Canada | Leaching of sulphide minerals |
US4410498A (en) * | 1980-11-05 | 1983-10-18 | Falconbridge Nickel Mines Limited | Acid leaching of nickel from serpentinic laterite ores |
US4548794A (en) * | 1983-07-22 | 1985-10-22 | California Nickel Corporation | Method of recovering nickel from laterite ores |
-
1998
- 1998-12-31 GR GR980100484A patent/GR1003306B/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1354668A (en) * | 1972-04-17 | 1974-06-05 | Int Nickel Canada | Process for sulphiding nickel-containing materials |
GB1365666A (en) * | 1972-05-08 | 1974-09-04 | Int Nickel Canada | Leaching of sulphide minerals |
US4410498A (en) * | 1980-11-05 | 1983-10-18 | Falconbridge Nickel Mines Limited | Acid leaching of nickel from serpentinic laterite ores |
US4548794A (en) * | 1983-07-22 | 1985-10-22 | California Nickel Corporation | Method of recovering nickel from laterite ores |
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