FIELD: metallurgy.
SUBSTANCE: invention concerns metallurgy field. Particularly it concerns nickel and cobalt recovery. Method of nickel and cobalt recovery from nickel- and cobalt-containing laterite ores includes burning of source ore in deoxidising atmosphere in rotary calciner for selective reduction of nickel and cobalt, at that before burning reducer either is not added at all or is added in quantity less than 2.5% mass to the source ore and then it is implemented leaching of reduced ore by means of ammonium carbonate aerated ammoniac solution for nickel and cobalt extraction into leach solution. Then leach solution is separated from ore rejects and nickel and cobalt are extracted by means of liquid extraction by organic reagent, deposition or ion exchange.
EFFECT: increasing of radiant efficiency sufficient degree of nickel and cobalt extraction.
18 cl, 4 ex, 5 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| PROCEDURE FOR LEACHING VALUABLE METALS OUT OF ORE AT PRESENCE OF HYDROCHLORIC ACID | 2005 |
|
RU2423534C2 |
| METHOD OF NICKEL RECOVERY FROM Ni-Fe-Mg LATERINE ORE WITH HIGH CONTENT OF MAGNESIUM | 1996 |
|
RU2149910C1 |
| PROCEDURE FOR LEACHING PRECIOUS METALS FROM ORE AT PRESENCE OF HYDROCHLORIC ACID | 2005 |
|
RU2395594C2 |
| PRODUCTION OF AUSTENITE STAINLESS STEEL FROM LATERITE NICKEL ORE AND CHROMITE ORE | 2013 |
|
RU2539280C1 |
| PROCEDURE FOR LEACHING AT PRESENCE OF HYDROCHLORIC ACID FOR REGENERATION OF VALUABLE METAL FROM ORE | 2006 |
|
RU2424332C2 |
| METHOD FOR EXTRACTING OF NICKEL AND COBALT FROM NICKEL ORES | 2004 |
|
RU2267547C1 |
| PROCEDURE FOR PROCESSING OXIDISED NICKEL-, COBALT-, IRON-, AND MAGNESIUM-CONTAINING ORE | 2009 |
|
RU2393250C1 |
| EXTRACTION METHOD OF NICKEL AND COBALT FROM SILICATE NICKEL-COBALT ORES | 2011 |
|
RU2465449C1 |
| DIRECT PURIFICATION OF A NICKEL LATERITE LEACHING EFFLUENT | 2012 |
|
RU2602213C2 |
| METHOD OF REPROCESSING OF THE MATERIALS CONTAINING MINERALS, IN WHICH NICKEL IS PRESENT IN PROTOXIDE FORM | 2006 |
|
RU2319754C1 |
