Solid liquid extraction

Details Solid liquid extraction Solid liquid extraction

1981-07-13

1983-03-15

Gantz, Delbert E.

Mineral oils: processes and products

Products and compositions

Lubricating oils

208 8LE, 422261, C10G 104

Patent

active

043766935

ABSTRACT:
A process for replacing a solution obtained for instance by exposing oil shale particles to the action of a solvent under supercritical conditions, by a solvent is provided for. The solid/solution mixture is extracted in a multitude of cross flow extractions such as to gradually replace the solution e.g. a bitumen solution, by the solvent, e.g. toluene. An apparatus for carrying out this process is also disclosed.

REFERENCES:
patent: 2632720 (1953-03-01), Perry
patent: 2871180 (1959-01-01), Lowman, Sr. et al.
patent: 2885339 (1959-05-01), Coulson et al.
patent: 3875046 (1975-04-01), Rosenbloom
patent: 4108760 (1978-08-01), Williams et al.
patent: 4189376 (1980-02-01), Mitchell
Supercritical Extraction of Coal-Update, R. Maddocks, presented to AICHE, Nov. 1978, Miami, FL, pp. 3-3-3-4, FIG. 1.

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