Two stage leaching of limonitic ore and sea nodules

Details Two stage leaching of limonitic ore and sea nodules Two stage leaching of limonitic ore and sea nodules

1976-05-19

1977-12-27

Vertiz, O. R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423 41, 423 49, 423140, 423150, 423DIG4, C01G 310, C01G 5110, C01G 5310, C01G 4510

Patent

active

040655423

ABSTRACT:
A process which enables cumulative recovery of nonferrous metal values from manganiferous sea nodules and a limonitic ore comprises treating the limonitic ore in an aqueous acidic medium under reducing conditions to extract nonferrous metals and iron from the ore and form a solution containing ferrous iron and then leaching the sea nodules with such solution to extract nonferrous metals from the sea nodules and precipitate a predominant amount of the iron as hydrated ferric oxide.

REFERENCES:
patent: 2462499 (1949-02-01), Hoak
patent: 3549321 (1970-12-01), Everett
patent: 3795596 (1974-03-01), Kane et al.
patent: 3923615 (1975-12-01), Kane et al.
Bjorling, G., "Reductive Leaching of Ores, Especially Manganese Ores" in Progress in Mineral Dressing, Almquist & Wiksell, Stockholm, 1958, pp. 705-709.

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