Richard L Robertson

US Patent:

6825148, Nov 30, 2004

Filed:

Apr 10, 2001

Appl. No.:

09/832070

Inventors:

David Stephen Brown - Sugar Land TX
Richard Edward Robertson - Baton Rouge LA

Assignee:

Shell Oil Company - Houston TX

International Classification:

B01J 3100

US Classification:

502162, 502169, 502170, 502171, 526135, 526136, 526172

Abstract:

A process for the oligomerization of ethylene to a mixture of olefinic products having high linearity is provided, by using a catalyst comprising a reaction product of a simple divalent nickel salt; a boron hydride reducing agent; a water soluble base; a ligand selected from the group consisting of an o-dihydrocarbylphosphinobenzoic acid and alkali metal salts thereof; and a phosphite.

US Patent:

20050049447, Mar 3, 2005

Filed:

Oct 5, 2004

Appl. No.:

10/958828

Inventors:

David Brown - Sugar Land TX, US
Richard Robertson - Baton Rouge LA, US

International Classification:

C07C002/02

US Classification:

585502000

Abstract:

A process for the oligomerization of ethylene to a mixture of olefinic products having high linearity is provided, by using a catalyst comprising a reaction product of a simple divalent nickel salt; a boron hydride reducing agent; a water soluble base; a ligand selected from an o-dihydrocarbylphosphinobenzoic acid and alkali metal salt thereof; and, a phosphite.

US Patent:

55368891, Jul 16, 1996

Filed:

Sep 29, 1995

Appl. No.:

8/536718

Inventors:

Howard L. Fong - Sugar Land TX
David M. Singleton - Houston TX
Richard E. Robertson - Baton Rouge LA

Assignee:

Shell Oil Company - Houston TX

International Classification:

C07C 29149
C07C 31125

US Classification:

568885

Abstract:

This invention relates to a process for the two-stage hydrogenation of methyl esters which comprises: a) contacting and reacting one or more detergent range methyl esters with hydrogen under predominantly liquid phase hydrogenation conditions at a temperature of less than about 230. degree. C. , in the presence of a catalyst comprising a copper compound, a zinc compound, and at least one compound selected from the group consisting of aluminum, zirconium, magnesium, a rare earth and mixtures thereof, to produce an alcohol product and a wax ester product, and b) contacting and reacting the wax ester product from step a) with hydrogen under predominantly liquid phase hydrogenation conditions at a temperature greater than about 220. degree. C. in the presence of a catalyst comprising a copper compound, a zinc compound, and at least one compound selected from the group consisting of aluminum, zirconium, magnesium, a rare earth and mixtures thereof, to produce an alcohol product.