Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Rare earth metal
Patent
1975-02-11
1977-06-14
Vertiz, O. R.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Rare earth metal
423 24, 423 41, 423 50, 423 54, 423 55, 423100, 423109, 423112, 423122, 423132, 423139, 423140, 423150, 75115, C01G 310, C01G 5310
Patent
active
040297330
ABSTRACT:
The method comprises the steps of crushing of the ore, neutralization by a mixture of water and sulphuric acid, introduction of a controlled quantity of sulphur dioxide gas at a pH value between 1.5 and 4 for promoting dissolution of nickel, copper and a desired quantity of manganese, leaching of the ore with sulphuric acid at a pH value between 1 and 3 for selectively dissolving the nickel and copper, separation of the solid and liquid phases, and separation of the metals contained in the liquid phase.
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Ritcey et al. "Some Aspects of the Extraction of Metal from Acidic Solutions by Kelex 100" C.I.M. Bulletin Feb., 1974 pp. 87-92.
Ehrlich, Editor Copper Metallurgy, A.I.M.E. New York, N.Y. 1970 p.72.
Faugeras Pierre
Miquel Pierre
Robaglia Michele
Commissariat a l''Energie Atomique
Hearn Brian E.
Vertiz O. R.
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