Oil shale sorting

Details Oil shale sorting Oil shale sorting

1975-02-27

1976-11-16

Reeves, Robert B.

Classifying, separating, and assorting solids

Special applications

209 9, 209 11, 2091115, 2091116, 219 1055R, 250253, B03B 102

Patent

active

039922871

ABSTRACT:
Sorting of bicarbonate containing ore particles from oil containing ore particles in a mixture of the two types of ore particles by treating the surface of the mixture with an aqueous medium and thereafter subjecting the ore particles, while wet, to microwave energy to heat the surface of the particles sufficiently to whiten the color of the bicarbonate containing particles and thereafter optically sorting the particles according to color.

REFERENCES:
patent: 1678884 (1928-07-01), Sweet
patent: 3560347 (1971-02-01), Knapp et al.
patent: 3819805 (1974-06-01), Graves et al.

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