Supercritical fluid extraction and enhancement for liquid liquid

Details Supercritical fluid extraction and enhancement for liquid liquid Supercritical fluid extraction and enhancement for liquid liquid

1983-10-31

1985-10-15

Fisher, Richard V.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

208309, 210806, B01D 1104

Patent

active

045472920

ABSTRACT:
Liquid-liquid extraction processes employing a liquid solvent are enhanced through the utilization of a subsequent supercritical fluid extraction process performed on the liquid extract from the liquid-liquid process. The second, supercritical solvent is used in the supercritical fluid extraction process step. The extract from the supercritical fluid extraction process is further processed to separate the supercritical solvent and the liquid solvent, both of which are returned in a closed cycle flow to the supercritical fluid extraction vessel and the liquid-liquid reaction vessel respectively.

REFERENCES:
patent: 3969196 (1976-07-01), Zosel
patent: 4125459 (1978-11-01), Garwin
patent: 4191639 (1980-03-01), Audeh et al.
patent: 4349415 (1982-09-01), De Filippi et al.
patent: 4354928 (1982-10-01), Audeh et al.
patent: 4358365 (1982-11-01), Hutchings et al.
patent: 4375387 (1983-03-01), De Filippi et al.

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