Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Iron group metal
Patent
1975-12-11
1977-08-23
Vertiz, O. R.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Iron group metal
423124, 423142, C01G 5310
Patent
active
040440966
ABSTRACT:
The leaching efficiency of nickeliferous lateritic ore is optimized by scalping the ore to remove a coarse low-nickel fraction and provide a fine nickel-rich fraction which is then high pressure leached in a sulfuric acid solution by controlling the parameters temperature, pulp density, the rate of acid addition, leaching time, agitation rate, etc., whereby a pregnant solution is obtained with the nickel to (Fe+Al+Cr) ratio exceeding about 2.
REFERENCES:
patent: 2842436 (1958-07-01), Dasher et al.
patent: 3761566 (1973-09-01), Michal
Queneau, Editor, Extractive Metallurgy of Copper, Nickel, Cobalt Interscience, New York, (1961), pp. 363-397.
Boldt et al., The Winning of Nickel, Longmans Canada Ltd., (1967), pp. 290-294, 388, 437-444.
Chou Eddie C.
Queneau Paul B.
Amax Inc.
Hearn Brian E.
Kalil Eugene J.
Serijan Kasper T.
Vertiz O. R.
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