Susan J Siler

US Patent:

20080064591, Mar 13, 2008

Filed:

Dec 9, 2005

Appl. No.:

11/794416

Inventors:

Susan Siler - Lake Jackson TX, US
Joseph Henry - Lake Jackson TX, US
David Trent - Lake Jackson TX, US
Larry Ito - Midland MI, US
David Barton - Midland MI, US

International Classification:

B01J 38/68
B01J 29/89
B01J 29/90
B01J 38/60

US Classification:

502242000

Abstract:

A method of reclaiming a titanosilicate from a deactivated or spent oxidation catalyst containing a titanosilicate having deposited thereon one or more catalytic metals, such as gold, and optionally, one or more promoter metals, the method involving treating the deactivated catalyst with an oxidant; contacting the oxidant-treated catalyst with acid, preferably aqua regia; washing the titanosilicate to remove residual acid; and optionally drying and/or calcining. A method of reconstituting an active oxidation catalyst from a spent or deactivated oxidation catalyst, the method involving reclaiming the titanosilicate as noted above, and then depositing one or more catalytic metals and, optionally, one or more promoter metals onto the reclaimed titanosilicate.

US Patent:

20080249340, Oct 9, 2008

Filed:

Mar 4, 2005

Appl. No.:

11/547060

Inventors:

Susan J. Siler - Lake Jackson TX, US
Joseph D. Henry - Lake Jackson TX, US

International Classification:

B01J 37/34
C07B 41/00
B01J 21/06
B01J 27/06
B01J 27/14
B01J 27/232
B01J 29/06
B01J 31/26

US Classification:

568952, 502 5, 502242, 502227, 502214, 502174, 502150, 502 73, 502 74, 502 77

Abstract:

A process and hydro-oxidation catalyst for the hydro-oxidation of a hydrocarbon, preferably a Colefin, such as propylene, by oxigen in the presence of hydrogen to the corresponding partially-oxidized hydrocarbon, preferably, a Colefin oxide, preferably, propylene oxide. The catalyst comprises gold, silver, one or more platinum group metals, one or more lanthanide rare earth metals, or a mixture thereof, deposited on a titanosilicate, preferably TS-1 characterized in that titanosilicate is prepared by microwave heating.