Beneficiation of coal and metallic and non-metallic ores by frot

Details Beneficiation of coal and metallic and non-metallic ores by frot Beneficiation of coal and metallic and non-metallic ores by frot

1979-01-05

1980-07-08

Halper, Robert

Classifying, separating, and assorting solids

Fluid suspension

Liquid

B03D 106

Patent

active

042116422

ABSTRACT:
Beneficiation of coals, metallic, and non-metallic ores by froth flotation process using polyhydroxy alkyl xanthate depressants for pyrite in coals, or in metallic and non-metallic ores to obtain pyrite sulfur free coal, as well as pyrite free metallic or non-metallic minerals by depressing pyrite and marcasite as the waste material of coal or ore, comprises; adding to a water suspension of finely divided coal or ore of a polyhydroxy alkyl xanthate to depress pyrite and certain organic sulfur compounds in the presence of an adequate collector for recovering pyrite sulfur free coal, or pyrite and marcasite free mineral concentrates.

REFERENCES:
patent: 1970508 (1934-08-01), Christmann
patent: 2024925 (1935-12-01), Hirschkind
patent: 2319394 (1943-05-01), Erickson
patent: 2321593 (1943-06-01), Gresham
patent: 2629493 (1953-02-01), Brown
patent: 2629494 (1953-02-01), Brown
patent: 3770213 (1973-11-01), Lynn
patent: 3827557 (1974-08-01), Fischer

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