Extraction process

Details Extraction process Extraction process

1984-10-10

1986-07-22

Schenkman, Leonard

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

Conjugate or complex

426425, 426655, A61K 3578, A23L 128

Patent

active

046019065

ABSTRACT:
An extraction vessel A is charged with a particulate solid, e.g. oilseed, and a transfer liquid, e.g. water, in an amount sufficient to pressurize vessel A to an elevated pressure. Extraction solvent, e.g. carbon dioxide, is introduced, preferably from a storage vessel B, to displace transfer liquid from vessel A. After extraction by the solvent, the latter may be displaced into vessel B by transfer liquid which is preferably stored under pressure in vessel B during the extraction.
The extraction solvent is gaseous at ambient conditions but preferably is liquid or a supercritical fluid at the displacement conditions.

REFERENCES:
Brogle: "CO.sub.2 as a Solvent: Its Properties and Applications," Chemistry and Industry, Jun. 1982, pp. 385-390.
de Filippi: "CO.sub.2 as a Solvent Application to Fats, Oils and Other Materials," Chemistry and Industry, Jun. 1982, pp. 390-394.
Bott: "Fundamentals of Carbon Dioxide in Solvent Extraction", Chemistry and Industry, Jun. 1982, pp. 394-396.
Vollbrecht: "Extraction of Hops with Supercritical CO.sub.2 ", Chemistry and Industry, Jun. 1982, pp. 397-399.
Calame et al.: "CO.sub.2 Extraction in the Flavour and Perfumery Industries", Chemistry and Industry, Jun. 1982, pp. 399-402.
Gardner: "Industrial Scale Hop Extraction with Liquid CO.sub.2 ", Chemistry and Industry, Jun. 1982, pp. 402-405.

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