Method of continuous extraction of particulate solid material

Details Method of continuous extraction of particulate solid material Method of continuous extraction of particulate solid material

1983-08-02

1985-11-19

Waddell, Frederick E.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

Conjugate or complex

426655, A61K 3578

Patent

active

045541639

ABSTRACT:
Continuous extraction of particulate solid material, particularly vegetable or animal raw material, with a highly compressed gas as a solvent includes forming a suspension by mixing a solid material with a liquefied gas in a suspension container under pressure which is lower than an extraction pressure, compressing the suspension to an extraction pressure greater than 10 bar and bringing to an extraction temperature, supplying the suspension into an extraction container which is supplied with fresh solvent in a counterstream to the solid material and from which an extract rich solution is withdrawn and thereafter the extracted solid material suspended in the liquefied gas is withdrawn from the extraction container, and continuously separating the withdrawn extract-poor solid material from the gas and discharging the same.

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