Method for preparing 1,2-propanediol by hydrogenolysis of...

Details Method for preparing 1,2-propanediol by hydrogenolysis of... Method for preparing 1,2-propanediol by hydrogenolysis of...

2011-01-11

2011-01-11

Witherspoon, Sikarl A (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C568S852000, C568S861000

Reexamination Certificate

active

07868212

ABSTRACT:
The invention relates to a method for preparing 1,2-propanediol by reacting glycerol, which has a purity of at least 95 wt %, with hydrogen at a hydrogen pressure from 20 to 100 bar and a temperature from 180 to 240° C. in the presence of a catalyst, which comprises 20 to 60 wt % of copper oxide, 30 to 70 wt % of zinc oxide and 1 to 10 wt % manganese 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: 0 713 849 (1996-05-01), None
patent: WO 2007/010299 (2007-01-01), None
patent: WO2007099161 (2007-09-01), None
Conner et al. Hydrogenolysis of Oxygenated Organic Compounds. Journal of the American Chemical Society, 1932, vol. 54, p. 4678-4690.
English Abstract for DE 43 02 464 A1. Aug. 4, 1994.
English Abstract for CN 101 012 149 A. Aug. 8, 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. Jul. 28, 2009.

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