The present invention provides a catalyst precursor, a catalyst system comprising the precursor, and a polymerization method using the catalyst system, an embodiment of the precursor is selected from the following structures:.
Arnold M. Harrison - South Charleston WV Leonard Kaplan - Dunbar WV
Assignee:
Union Carbide Corporation - Danbury CT
International Classification:
C07D32300
US Classification:
549352
Abstract:
The invention relates to a process for preparing cyclic polyethers from cyclic alkylene carbonates in the presence of a solvent, wherein the process is carried out in the presence of a solvent selected from the group containing a carbonyl moiety, nitrile moiety or mixture thereof. In addition, ionic catalysts may be employed to increase the selectivity to cyclic polyether.
James E. Babin - Hurricane WV David R. Bryant - South Charleston WV Arnold M. Harrison - South Charleston WV David J. Miller - Charleston WV
Assignee:
Union Carbide Chemicals & Plastics Technology Corporation - Danbury CT
International Classification:
B01J 3862 C07C 4549
US Classification:
568454
Abstract:
A process for improving the catalytic activity of a partially deactivated solubilized rhodium-tertiary organophosphine complex hydroformylation catalyst by treating it with propargyl alcohol and a carboxylic acid.
Catalysts And Processes Useful In Producing 1,3-Diols And/Or 3-Hydroxyldehydes
John R. Briggs - Charleston WV John M. Maher - Charleston WV Arnold M. Harrison - South Charleston WV
Assignee:
Union Carbide Chemicals & Plastics Technology Corporation - Danbury CT
International Classification:
C07C 4719 C07C 29158
US Classification:
568496
Abstract:
A process for producing a 1,3-diol, e. g. , 1,3-propanediol, and/or a 3-hydroxyaldehyde, e. g. , 3-hydroxypropionaldehyde, is disclosed which comprises contacting a combination of an epoxide, carbon monoxide and hydrogen in the presence of a rhodium-containing catalyst composition effective to promote the hydroformylation of the epoxide at conditions effective to form at least one of a 1,3-diol and a 3-hydroxyaldehyde. The rhodium-containing catalyst composition comprises an anionic rhodium-containing complex. A promoter component is preferably provided to enhance at least one of the rate and selectivity of the epoxide hydroformylation reaction Rhodium-containing compositions and a processes for producing rhodium-containing compositions are also disclosed.
Catalysts And Processes Useful In Producing 1,3-Diols And/Or 3-Hydroxyaldehydes
John R. Briggs - Charleston WV John M. Maher - Charleston WV Arnold M. Harrison - South Charleston WV
Assignee:
Union Carbide Chemicals & Plastics Technology Corporation - Danbury CT
International Classification:
B01J 3100
US Classification:
502166
Abstract:
A process for producing a 1,3-diol, e. g. , 1,3-propanediol, and/or a 3-hydroxyaldehyde, e. g. , 3-hydroxypropionaldehyde, is disclosed which comprises contacting a combination of an epoxide, carbon monoxide and hydrogen in the presence of a rhodium-containing. catalyst composition effective to promote the hydroformylation of the epoxide at conditions effective to form at least one of a 1,3-diol and a 3-hydroxyaldehyde. The rhodium-containing catalyst composition comprises an anionic rhodium-containing complex. A promoter component is preferably provided to enhance at least one of the rate and selectivity of the epoxide hydroformylation reaction. Rhodium-containing compositions and a processes for producing rhodium-containing compositions are also disclosed.
Owner at Quidquid, LLC, Vice President, Global Director of Analytical Technologies at Rampant Technology Partners
Location:
Charleston, West Virginia Area
Industry:
Chemicals
Work:
Quidquid, LLC since Sep 2009
Owner
Rampant Technology Partners since Mar 2003
Vice President, Global Director of Analytical Technologies
Dow Chemical Feb 2001 - Sep 2002
Scientist
Union Carbide Jan 1975 - Feb 2001
Corporate Fellow
Education:
University of Chicago 1968 - 1975
Ph.D., Organic Chemistry
Princeton University 1964 - 1968
A.B., Chemistry
Arnold Harrison (born September 20, 1982 in Augusta, Georgia) is an American football linebacker for the Virginia Destroyers of the United Football League. ...