Sodium silicate as a phosphate flotation modifier

Details Sodium silicate as a phosphate flotation modifier Sodium silicate as a phosphate flotation modifier

1987-12-09

1990-02-27

Lacey, David L.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209167, B03D 102

Patent

active

049043757

ABSTRACT:
This invention is directed to an improved froth flotation separation for beneficiating phosphate containing ores wherein an ore is preliminarily conditioned with an anionic agent and then subjected to froth flotation separation to concentrate the phosphate containing fraction. The improvement comprises the addition of sodium silicate near the end of the conditioning step before the beginning of the froth flotation.

REFERENCES:
patent: 1547732 (1925-06-01), Broadridge
patent: 2466671 (1949-04-01), Gieske
patent: 2471341 (1949-05-01), Moyer
patent: 3259242 (1966-07-01), Snow
patent: 3259326 (1966-07-01), Duke
patent: 3314537 (1967-04-01), Green
patent: 3462016 (1969-08-01), Bushell
patent: 3462017 (1969-08-01), Bushell
patent: 4200522 (1980-04-01), Dorrepaal
Kirk Othmer, "Encyclopedia of Chemical Technology", vol. 20, 3rd Edition, pp. 869-870, 875-877.
Taggarts, "Handbook of Mineral Dressing", @1945, Section 12, pp. 124-125.

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