Quality of heavy mineral concentrates

Details Quality of heavy mineral concentrates Quality of heavy mineral concentrates

1989-12-15

1991-09-24

Silverman, Stanley S.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209167, 423 3, B03D 102

Patent

active

050511653

ABSTRACT:
The specification discloses a process for substantially reducing the radioactivity of heavy mineral concentrates or mineral mixtures. The process comprises the removal of radioactive minerals present in the heavy mineral concentrate or mixture by a selective flotation procedure. The process yields a single flotation fraction containing the radioactive minerals.

REFERENCES:
patent: 2000656 (1935-05-01), Armstrong
patent: 2570119 (1951-10-01), Handley
patent: 2570120 (1951-10-01), Handley
patent: 2610738 (1952-09-01), Cuthbertson
patent: 2697518 (1954-12-01), Bennett
patent: 2861687 (1958-11-01), Lord
patent: 3138550 (1964-06-01), Woolery
patent: 3589622 (1971-06-01), Weston
patent: 3647629 (1953-08-01), Veltman
"Radiation Doses in the Sand Mining Industry", by Hartley et al from Australian Conference on Minerals, Sep.-Oct. 1986.
"The Development of Occupational Health and Safety Policy and Practices", by Watson from Australian Conference on Minerals, Sep.-Oct. 1986.
"Benefication of Uranium Ores", by Tame & Rosenbaum, Report #5884, U.S. Dept. of the Interior, pp. 1-28.
"The Separation of Monazite from Zircon by Flotation", by Abeidu, Journal of Less-Common Metals, vol. 289, 1979.

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