Title:
A SOLVENT EXCHANGE PROCESS
Document Type and Number:
WIPO Patent Application WO2001094288
Kind Code:
A3
Abstract:
A process for recovering an organic acid or a metal salt thereof includes contacting an alcoholic phase containing one or more organic acid(s) or metal salt(s) thereof with water under conditions effective to provide an aqueous phase containing a portion of the organic acid(s) or metal salt (s) thereof. The aqueous phase does not contain substantial amounts of the alcohol(s). This process can also include recovery of the organic acid(s) or metal salt(s) thereof from the aqueous phase.
Inventors:
COLLINS NICK ALLEN
PERRI STEVEN THOMAS
PERRI STEVEN THOMAS
Application Number:
PCT/US2001/017191
Publication Date:
July 04, 2002
Filing Date:
May 25, 2001
Export Citation:
Assignee:
EASTMAN CHEM CO (US)
International Classes:
C07D307/62; C12P7/60; (IPC1-7): C07C51/48; C07D307/62; C07C53/00; C07C55/00; C07C59/00
Foreign References:
| EP0970941A1 | 2000-01-12 | |||
| GB428814A | 1935-05-20 |
Other References:
DATABASE CHEMICAL ABSTRACTS Columbus, Ohio, US; "An increase of ascorbic acid yield with extraction work-up", XP002195998
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