Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Reexamination Certificate
2007-06-16
2010-10-12
Price, Elvis O (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
Reexamination Certificate
active
07812200
ABSTRACT:
The invention provides a process for preparing 1,2-propanediol, by reacting glycerol which has a purity of at least 95% by weight with hydrogen at a hydrogen pressure of from 20 to 100 bar and a temperature of from 180 to 240 DEG C. in the presence of a catalyst which comprises from 10 to 50% by weight of copper oxide and from 50 to 90% by weight of zinc oxide in an autoclave.
REFERENCES:
patent: 4642394 (1987-02-01), Che
patent: 5387753 (1995-02-01), Scarlett et al.
patent: 5616817 (1997-04-01), Schuster et al.
patent: 101 012 149 (2007-08-01), None
patent: 43 02 464 (1994-08-01), None
patent: 44 42 124 (1996-05-01), None
patent: 0 523 015 (1993-01-01), None
patent: 0523015 (1993-05-01), None
patent: 0 713 849 (1996-05-01), None
patent: 0713849 (1996-05-01), None
patent: WO 2007/010299 (2007-01-01), None
English Abstract for DE 43 02 464 A1, 1994.
English Abstract for CN 101 012 149 A, 2007.
International Search Report for PCT/EP2008/000255, dated Apr. 10, 2008.
International Search Report for PCT/EP2007/005325, dated Sep. 6, 2007.
International Preliminary Report on Patentability for PCT/EP2007/005325.
Franke Oliver
Stankowiak Achim
Clariant Finance (BVI) Limited
Price Elvis O
Waldrop Tod A.
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