Title:
PROCESS FOR PRODUCTION OF A CARBOXYLIC ACID/DIOL MIXTURE SUITABLE FOR USE IN POLYESTER PRODUCTION
Document Type and Number:
WIPO Patent Application WO2005070525
Kind Code:
A3
Abstract:
The present invention relates to a process by which a carboxylic acid/diol mixture is obtained from a slurry or cake carboxylic acid product without isolation of a substantially dry carboxylic acid solid. More specifically, the present invention relates to a process by which a terephthalic acid/ethylene glycol mixture suitable as a starting material for polyester or co-polyester production is obtained from a slurry or cake terephthalic acid product without isolation of a substantially dry terephthalic acid solid.
Inventors:
PARKER KENNY RANDOLPH
LIN ROBERT
GIBSON PHILIP EDWARD
LIN ROBERT
GIBSON PHILIP EDWARD
Application Number:
PCT/US2005/000697
Publication Date:
September 22, 2005
Filing Date:
January 10, 2005
Export Citation:
Assignee:
EASTMAN CHEM CO (US)
International Classes:
C07C51/43; C07C51/47; C07C51/487; C07C67/08; C08G63/78; B01F23/00; (IPC1-7): C07C51/43; C07C51/47; C07C51/487; C07C67/08; C08G63/78
Domestic Patent References:
| WO2004081080A1 | 2004-09-23 | |||
| WO2004035515A1 | 2004-04-29 | |||
| WO1997017391A1 | 1997-05-15 |
Foreign References:
| US3057909A | 1962-10-09 | |||
| US4782181A | 1988-11-01 |
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