Patent EP0088405A2 successfully refreshed from Google Patents.
EP0088405A2
Expired / Lapsed
EP
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Process for the extraction of high quality natural waxes
Assignee: Evonik Operations GmbH
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Filing: 1983-03-04
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Granted: —
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Expires: 2003-03-04
Abstract
Abstract Process for the extractive production of valuable, natural waxes from fossil and/or freshly grown vegetable and/or animal starting material by extraction of the starting material in an extraction stage with a physiologically unobjectionable gas at supercritical pressure and temperature conditions, separation of the extract-containing gas in a separator part by pressure reduction and/or temperature change, periodical or continuous withdrawal of the extract and return of the separated gas to the extraction stage.
Inventors
- 👤 Egon Prof.Dr.Dr.H.C. Stahl
- 👤 Karl-Werner Quirin
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 17:09
CPC Classifications
C; C11; C11B; C11B11/00; B; B01; B01D; B01D11/00; B01D11/02; B01D11/0203; C10; C10G; C10G73/00
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