Process for the recovery of micas by flotation and micas thus ob

Details Process for the recovery of micas by flotation and micas thus ob Process for the recovery of micas by flotation and micas thus ob

1994-02-02

1995-08-08

Lithgow, Thomas M.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209166, 423111, 4233283, B03D 102

Patent

active

054391164

ABSTRACT:
The invention relates to a process for the recovery of micas by flotation starting with slurried ore from which the fines have been optionally removed, comprising a stage of bringing the said slurry into contact with an appropriate cationic collector, followed by an actual flotation stage and recovery of the supernatant formed for subsequent treatment and optional rewashing, characterized in that it is carried out at a pH higher than 6 and in that the stage of bringing the said slurry into contact with the cationic collector is preceded by a stage of bringing the said slurry into contact with an activating agent chosen from soluble metal salts.
The invention also relates to the micas obtained by the process.

REFERENCES:
patent: 2132902 (1938-10-01), Lenher
patent: 2307397 (1943-01-01), Falconer
patent: 2337118 (1943-12-01), Lontz
patent: 2857051 (1958-10-01), Noblitt
patent: 2885078 (1959-05-01), Fenske
patent: 3009570 (1961-11-01), Lancaster
patent: 3214018 (1965-10-01), Neal
patent: 3278028 (1966-10-01), Millsaps
patent: 3329265 (1967-07-01), Browning
patent: 3804243 (1974-04-01), Yang
Chemical Abstracts, vol. 102, No. 2, abstract No. 10118h, Jan. 14, 1985.
Chemical Abstracts, vol. 80, No. 16, abstract No. 85862g, Apr. 22, 1974.
Chemical Abstracts, vol. 98, No. 18, Abstract No. 147267z, May 2, 1983.
Scandinavian Journal of Metallurgy, vol. 12, No. 3, 1983, pp. 117-120.

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