Rotary separating and extracting devices

Details Rotary separating and extracting devices Rotary separating and extracting devices

1976-03-09

1978-07-04

Richman, Barry S.

Mineral oils: apparatus

Solvent extraction

23269, 23270R, 208 11LE, B01D 1102, C10G 104

Patent

active

040986489

ABSTRACT:
A rotary separator, specially adapted for extraction of bituminous materials from tar sands or shale, comprises an inclined vessel having a helical conveyor attached to it, provided with apertures at the radially outer portion of the helical flights. Material introduced at the bottom is conveyed upwardly, and solvent washes downwardly to dissolve out the bituminous material. The apertures in the helix permit downward passage of liquid but prevent substantial downward passage of solids. A solvent recovery vessel is provided for recovering residual solvent from the separated solids.

REFERENCES:
patent: 581451 (1897-04-01), Bell
patent: 617712 (1899-01-01), Bell
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patent: 1952647 (1934-03-01), Alvey et al.
patent: 2337137 (1943-12-01), Thompson et al.
patent: 2433552 (1947-12-01), Haney et al.
patent: 2453060 (1948-11-01), Bauer et al.
patent: 3161581 (1964-12-01), Tiedje et al.
patent: 3189536 (1965-06-01), Bodine

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