Compositions – Miscellaneous
Reexamination Certificate
2005-01-11
2005-01-11
Toomer, Cephia D. (Department: 1714)
Compositions
Miscellaneous
C514S501000, C514S724000, C514S777000, C568S861000, C568S863000
Reexamination Certificate
active
06841085
ABSTRACT:
Methods for hydrogenolysis are described which use a Re-containing multimetallic catalyst for hydrogenolysis of both C—O and C—C bonds. Methods and compositions for reactions of hydrogen over a Re-containing catalyst with compositions containing a 6-carbon sugar, sugar alcohol, or glycerol are described. It has been surprisingly discovered that reaction with hydrogen over a Re-containing multimetallic catalyst resulted in superior conversion and selectivity to desired products such as propylene glycol.
REFERENCES:
patent: 2852570 (1958-09-01), Conradin et al.
patent: 3030429 (1962-04-01), Conradin et al.
patent: 4338472 (1982-07-01), Sirkar
patent: 4366332 (1982-12-01), Chao et al.
patent: 4401823 (1983-08-01), Arena
patent: 4404411 (1983-09-01), Tanikella
patent: 4476331 (1984-10-01), Dubeck et al.
patent: 4496780 (1985-01-01), Arena
patent: 5326912 (1994-07-01), Gubitosa et al.
patent: 5354914 (1994-10-01), Gubitosa et al.
patent: 5496786 (1996-03-01), Gubitosa et al.
patent: 5543379 (1996-08-01), Gubitosa et al.
patent: 6291725 (2001-09-01), Chopade et al.
patent: 6479713 (2002-11-01), Werpy et al.
patent: 6677385 (2004-01-01), Werpy et al.
patent: WO 0166499 (2001-09-01), None
Zhang, Z., et al. “Aqueous-Phase Hydrogenation of Lactic Acid to Propylene Glycol.” p. 89-98. 2001.
Frye, Jr. John G.
Miller Dennis J.
Werpy Todd A.
Zacher Alan H.
Battelle (Memorial Institute)
Toomer Cephia D.
Wells St. John P.S.
LandOfFree
Hydrogenolysis of 6-carbon sugars and other organic compounds does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydrogenolysis of 6-carbon sugars and other organic compounds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrogenolysis of 6-carbon sugars and other organic compounds will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3377496