Sequential and selective flotation of sulfide ores containing co

Details Sequential and selective flotation of sulfide ores containing co Sequential and selective flotation of sulfide ores containing co

1991-02-06

1992-01-07

Silverman, Stanley S.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

252 61, B03D 106, B03D 108, B03D 1016, B03D 1002

Patent

active

050788604

ABSTRACT:
A sequential flotation process for the separation of components of an ore containing sulfides of copper and molybdenum involves initially effecting selective flotation of the copper component directly from the ore by conditioning the ore with a combination of a source of bisulfite ion and causticized starch to produce a conditioned ore having a pH between approximately 5.2 and 6.2, and thereafter treating the conditioned ore with a collector selected from the group consisting of dialkyl dithiophosphates and alkyl dithiophosphinates.

REFERENCES:
patent: 2070076 (1937-02-01), Brown
patent: 2664199 (1953-12-01), Barker et al.
patent: 2811255 (1957-10-01), Nokes
patent: 4339331 (1982-07-01), Lim
patent: 4514292 (1985-04-01), Burdick
patent: 4549959 (1985-10-01), Armstrong
patent: 4877517 (1989-10-01), Bulatovic
Joseph F. Shirley, "By-Product Molybdenite," Mar. 1, 1978.
Joseph F. Shirley, "State-of-the-Art By-Product Molybdenite Recovery," Sep. 1981.

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