Extraction of metals from sea nodules

Details Extraction of metals from sea nodules Extraction of metals from sea nodules

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.

REFERENCES:
patent: 2340188 (1944-01-01), Jukkola
patent: 2584700 (1952-02-01), Hayward
patent: 3106451 (1963-10-01), Globus
patent: 3402042 (1968-09-01), Lichty
patent: 3479378 (1969-11-01), Orlandini et al
patent: 3514266 (1970-05-01), Nicols et al.
patent: 3666446 (1972-05-01), Cook et al.
patent: 3795596 (1974-03-01), Kane et al.
patent: 3810827 (1974-05-01), Kane et al.
patent: 3812232 (1974-05-01), Bauer et al.
patent: 3923615 (1975-12-01), Kane
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.

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