Title:
POLYMERIZATION INHIBITOR FOR STYRENE DEHYDROGENATION UNITS
Document Type and Number:
WIPO Patent Application WO2005012211
Kind Code:
A3
Abstract:
Quinone methide derivatives such as 4-benzylidene-2,6-di-tert-butyl-cyclohexa-2,5 dienone are used to inhibit styrene monomer polymerization in the dehydrogenator portion of a styrene monomer production system. The inhibitor contacts the dehydrogenation effluent and does not partition in substantial amounts to the aqueous phase that is separated in the phase separator.
Inventors:
ELDIN SHERIF (US)
DEASON RONNIE L (US)
LINK JOHN (US)
MORRIS TIFFANY N (US)
DEASON RONNIE L (US)
LINK JOHN (US)
MORRIS TIFFANY N (US)
Application Number:
PCT/US2004/023831
Publication Date:
April 14, 2005
Filing Date:
July 23, 2004
Export Citation:
Assignee:
GEN ELECTRIC (US)
ELDIN SHERIF (US)
DEASON RONNIE L (US)
LINK JOHN (US)
MORRIS TIFFANY N (US)
ELDIN SHERIF (US)
DEASON RONNIE L (US)
LINK JOHN (US)
MORRIS TIFFANY N (US)
International Classes:
C07C7/20; (IPC1-7): C07C7/20; C07C15/46
Domestic Patent References:
| WO1998002403A1 | 1998-01-22 |
Foreign References:
| EP0737660A1 | 1996-10-16 | |||
| US6024894A | 2000-02-15 |
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