Flotation beneficiation process for non-sulfide minerals

Details Flotation beneficiation process for non-sulfide minerals Flotation beneficiation process for non-sulfide minerals

1985-03-15

1988-01-19

Nozick, Bernard

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209 5, B03D 114

Patent

active

047203390

ABSTRACT:
An improved method of separating non-sulfide value minerals from non-sulfide ores is disclosed. The improved method includes the step of adding a depressant selective for siliceous gangue minerals and materials to a flotation slurry previously conditioned with an anionic collector. In preferred embodiments, the depressants comprise copolymers or terpolymers derived from acrylamide units and N-acrylamidoglycolic acid units. The method provides generally improved recoveries of non-sulfide value minerals at higher grade, in a reduced number of flotation steps and at reduced consumption levels of flotation reagents.

REFERENCES:
patent: 4133750 (1979-01-01), Burress
patent: 4171261 (1979-10-01), Dorrepaal et al.
patent: 4330398 (1982-05-01), Alford
patent: 4360425 (1982-11-01), Lim et al.
patent: 4372844 (1983-02-01), Bresson et al.
patent: 4488959 (1984-12-01), Agar
patent: 4545898 (1985-10-01), Helsten

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