Robert L Patton

US Patent:

56889755, Nov 18, 1997

Filed:

Apr 10, 1996

Appl. No.:

8/630317

Inventors:

Vinayan Nair - Oak Park IL
Deng-Yang Jan - Elk Grove Village IL
Robert Lyle Patton - Rolling Meadows IL
Ben A. Wilson - Algonquin IL
Donald F. Best - Mahopac NY

Assignee:

UOP - Des Plaines IL

International Classification:

B01J 2904
B01J 2987

US Classification:

549531

Abstract:

Molecular sieve compositions have been synthesized which are resistant to the loss of framework atoms. Specifically, the molecular sieves of the invention have the empirical formula mA: (M. sub. w Al. sub. x Si. sub. y)O. sub. 2 where A is at least one rare earth metal, M is chromium or titanium and "m", "w", "x" and "y" are the mole fractions of A, M, Al and Si respectively. Applicants have discovered that the rare earth metals prevent loss of chromium and titanium from the framework and degradation of the molecular sieve. Along with the composition, a process for preparing the composition and processes using the composition are disclosed and claimed.

US Patent:

55169570, May 14, 1996

Filed:

May 17, 1995

Appl. No.:

8/442741

Inventors:

Hermant W. Dandekar - Chicago IL
David A. Lesch - Ossining NY
Thomas M. Reynolds - Mobile AL
Robert L. Patton - Katonah NY
Stephen T. Wilson - Libertyville IL
Gregory J. Gajda - Mount Prospect IL

Assignee:

UOP - Des Plaines IL

International Classification:

C07C 522

US Classification:

585482

Abstract:

This invention presents a novel MgAPSO molecular sieve, containing a critical range of magnesium in the sieve framework and having a small crystallite size, which is particularly active for hydrocarbon conversion. The sieve advantageously is incorporated, along with a platinum-group metal, into a catalyst formulation which is useful for isomerization. When utilized in a process for isomerizing a non-equilibrium mixture of xylenes containing ethylbenzene, a greater yield of para-xylene is obtained compared to prior-art processes.

US Patent:

54787874, Dec 26, 1995

Filed:

Feb 28, 1994

Appl. No.:

8/174092

Inventors:

Hemant W. Dandekar - Chicago IL
David A. Lesch - Ossining NY
Thomas M. Reynolds - Mobile AL
Robert L. Patton - Katonah NY
Stephen T. Wilson - Libertyville IL
Gregory J. Gajda - Mount Prospect IL

Assignee:

UOP - Des Plaines IL

International Classification:

B01J 2904

US Classification:

502 66

Abstract:

This invention presents a novel MgAPSO molecular sieve, containing a critical range of magnesium: in the sieve framework and having a small crystallite size, which is particularly active for hydrocarbon conversion. The sieve advantageously is incorporated, along with a platinum-group metal, into a catalyst formulation which is useful for isomerization. When utilized in a process for isomerizing a non-equilibrium mixture of xylenes containing ethylbenzene, a greater yield of para-xylene is obtained compared to prior-art processes.