Leaching process for nickel cobalt and manganese ores

Details Leaching process for nickel cobalt and manganese ores Leaching process for nickel cobalt and manganese ores

1994-03-24

1995-02-28

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Magnetic or electrostatic processes

75 1013, 75738, 4231501, C01G 5300, C22B 300

Patent

active

053933206

ABSTRACT:
A process for the extraction of nickel, cobalt and manganese from slurries of their ores such as laterite, saprolite or manganese nodules in an aqueous acid solution while irradiating the solution with electromagnetic energy such as microwave energy. The acid may be hydrochloric acid, sulphurous acid and/or sulphuric acid and the acid solution may be blended with high concentrations of halite and magnesium ions to further control the dissolution of magnesia from the ore. A reactor including electromagnetic wave generators is also included.

REFERENCES:
patent: 4311520 (1982-01-01), Kruesi
patent: 4541868 (1985-09-01), Lowenhaupt
patent: 4541994 (1985-09-01), Lowenhaupt et al.
patent: 4906290 (1990-03-01), Worner
Engineering and Mining Journal, vol. 160, No. 12, pp. 84-92.

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