Mobile, waterless, coal and mineral separating method

Details Mobile, waterless, coal and mineral separating method Mobile, waterless, coal and mineral separating method

1978-08-07

1980-04-15

Hill, Ralph J.

Classifying, separating, and assorting solids

With heat treatment

209172, B03B 102

Patent

active

041982894

ABSTRACT:
A waterless method of separating minerals and a mobile mineral separator are described in which preheated mine products are continuously separated from associated mine refuse by sink/float washing in a heavy-liquid bath which has been heated to its boiling point. The heavy liquids will usually be halogenated organic liquids or liquid mixtures. The separated product and reject fractions are withdrawn by augers to drainage hoppers where most of the heavy liquids are removed for return to the bath. Final removal of the heavy liquids from the mine products and reject fractions is accomplished by vaporization as the product and the reject fraction move by additional augers through heated pipes. The vaporized heavy liquids are collected in air-cooled or otherwise cooled condensers and are returned to the bath. The heavy liquids are essentially completely recycled.

REFERENCES:
patent: 1067410 (1913-07-01), Du Pont
patent: 1106195 (1914-08-01), Du Pont
patent: 2670078 (1954-02-01), Davis
patent: 3026252 (1962-03-01), Muschenborn et al.

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