Oxalic acid leaching of marine nodules

Details Oxalic acid leaching of marine nodules Oxalic acid leaching of marine nodules

1979-12-11

1981-03-31

Hearn, Brian E.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423 27, 423 49, 423139, 423150, C01G 300, C01G 5300, C01G 5100

Patent

active

042592950

ABSTRACT:
Metal values of ferromanganese nodules harvested from ocean floors are placed in aqueous solution suitable for partition as by selective extraction with chelating agents by treating the nodules with aqueous solutions which contain oxalic acid or mixture of oxalic acid with a strong acid. These unique reagents may be used alone or in combination with other reducing, complexing or acidic treating agents.

REFERENCES:
patent: 3511645 (1970-05-01), Goni
patent: 3853618 (1974-12-01), Smith
patent: 3923615 (1975-12-01), Kane et al.
patent: 4029733 (1977-06-01), Faugeras
Agarwol et al. "Processing of Ocean Nodules: A Technical and Economic Review", Journal of Mines, vol. 28, No. 4, Apr. 1976. _

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