Mineral flotation separation by deoxygenating slurries and miner

Details Mineral flotation separation by deoxygenating slurries and miner Mineral flotation separation by deoxygenating slurries and miner

1998-03-26

2000-03-14

Lithgow, Thomas M.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209166, 209167, 209 1, B03D 102, B03B 104, B03B 100

Patent

active

060360259

ABSTRACT:
A process for the separation of minerals of different mineralogical character. The process involves conditioning a milled slurry or a slurry of a flotation concentrate which contains a mixture of valuable sulfidic minerals and non-sulfidic gangue material with an inert
on-oxidizing gas and/or a reducing/deoxifying agent. The conditioning is conducted to achieve a controlled dissolved oxygen content or electrochemical reduction potential conducive to the separation of the valuable sulfidic mineral, non-sulfidic gangue material. The inert
on-oxidizing gas and/or reducing/deoxifying agent may be added to the slurry in a quantity sufficient to increase rejection of the non-sulfidic gangue minerals or to improve the selectivity between the valuable sulfidic minerals and non-sulfidic gangue minerals.

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Derwent Soviet Inventions Illustrated, Section 1, chemical, vol. W, No. 31, issued Sep. 9, 1975, Metallurgy, p. 3, SU 405247, (Glazunov et al.) Dec. 10, 1974 Abstract.

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