Recovering metal values from marine manganese nodules

Details Recovering metal values from marine manganese nodules Recovering metal values from marine manganese nodules

C - Chemistry, Metallurgy

22

B

53/173, 53/370

C22B 47/00 (2006.01) C01G 45/02 (2006.01)

Patent

CA 1105711

ABSTRACT OF THE DISCLOSURE A method for selectively extracting metal values from manganese bearing ores such as marine nodules. The ore is initially leached to sol- ubilize manganese and other desirable metals as nitrates. The resulting solution is then traated with manganous hydroxide to selectlvely precipitate metals such as copper, nickel and cobalt. The enriched mixture of metal hydroxides is separated from the manganese nitrate solution, which is de- composed to recover high purity MnO2.

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