Flotation and sintering of synthetic manganese carbonate

Details Flotation and sintering of synthetic manganese carbonate Flotation and sintering of synthetic manganese carbonate

1979-11-05

1981-06-23

Lewis, Michael L.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 80, 75103, 75121, 209167, 423 49, 423DIG4, B03D 102, C22B 116

Patent

active

042748666

ABSTRACT:
A process in which manganese is recovered from manganese nodules after the nodules have been treated to recover base metals such as copper, nickel, cobalt, and molybdenum. The process includes the steps of reacting the manganese in the nodules to yield a carbonate and subjecting the manganese carbonate to flotation. The manganese carbonate froth is collected from the top of a flotation cell, is dried to produce a manganese concentrate, and is sintered to produce a synthetic manganese oxide. Sintering of such concentrates at 1000.degree. C. yields a product containing greater than 50% manganese.
The effect of reagent dosage, pH control, and temperature control on the yield of the synthetic manganese oxide is also disclosed.

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Gaudin, A. M.; Flotation, 2 ed., McGraw Hill, New York, N.Y., pp. 478-480.

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