Oxidizing method in froth flotation of minerals

Details Oxidizing method in froth flotation of minerals Oxidizing method in froth flotation of minerals

1974-04-30

1976-04-20

Halper, Robert

Classifying, separating, and assorting solids

Fluid suspension

Liquid

B03D 102

Patent

active

039517861

ABSTRACT:
An improved method in concentration of oxide ores and minerals by froth flotation process which comprises subjecting a pulp of mineral slurry to the combined action of a organic nitrogen compound with one or more NH.sub.2 group and hypochlorite in a slightly acid pulp of mineral slurry. The decomposition of the NH.sub.2 group provokes a highly oxidizing state in the mineral slurry, a state which can change the valency state of any metal which can change the valency state from lower to higher of the metal at the mineral surface, thus rendering the mineral particle to be capable of activating the double carbon to carbon bonds of certain collectors possessing these bonds as are olefine alcohols or olefine glycols. The indicated compounds provide recovery of oxide minerals of iron, antimony, cerium, yttrium titanium and thorium, vanadium, niobium, tantalum, chromium, and wolfram.

REFERENCES:
patent: 1364306 (1921-01-01), Perkins
patent: 1364858 (1921-01-01), Perkins
patent: 1548351 (1925-08-01), Clark
patent: 1852109 (1932-04-01), Christmann
patent: 2410377 (1946-10-01), Booth
patent: 2922522 (1960-01-01), Fenske
patent: 3669266 (1972-06-01), Sanders

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