METHOD FOR NICKEL AND OTHER METAL RECOVERY FROM OXIDIZED ORE Russian patent published in 2005 - IPC

Abstract RU 2245932 C1

FIELD: metallurgy, in particular complex metal recovery from oxidized ore.

SUBSTANCE: claimed method includes granulation with sulfuric acid. Obtained granules are sulfated at 250-450⁰C for 1-2 h in one or two steps. Then leaching of nickel and other metal sulfates are carried out followed by metal recovery using known methods. Invention is useful in reprocessing of oxidized nickel-cobalt ores, as well as laterite ores containing nickel, cobalt, and copper, and iron-manganese nickel-containing nodules.

EFFECT: high yield nickel recovery; inexpensive and usable equipment.

3 cl, 3 tbl, 4 ex

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RU 2 245 932 C1

Authors

Sinegribov V.A.

Kol'Tsov V.Ju.

Shchukin M.I.

Mel'Nik D.V.

Batshev V.I.

Dates

2005-02-10—Published

2003-07-22—Filed