Paul K Hurlburt

US Patent:

6846435, Jan 25, 2005

Filed:

Jul 6, 2000

Appl. No.:

10/030066

Inventors:

Frank Michael Bohnen - Osthofen, DE
Katja Siepen - Kuerten, DE
Paul K. Hurlburt - Leander TX, US
Karen Reitz - Eddelak, DE

Assignee:

Sasol Germany GmbH - Hamburg

International Classification:

B01F 312
C08K 322
C01B 3314

US Classification:

2523635, 516 34, 524 35, 524430, 524444, 524450

Abstract:

The present invention relates to a process for preparing metal oxides or metal aquoxides, especially alumina hydrates which can be dispersed in organic solvents, and to sulfonic acid-modified metal oxides or metal aquoxides that can be prepared by this process.

US Patent:

6972301, Dec 6, 2005

Filed:

Jun 6, 2002

Appl. No.:

10/166923

Inventors:

Paul K. Hurlburt - Leander TX, US
Jeff T. Fenton - Katy TX, US

Assignee:

Sasol North America Inc. - Houston TX

International Classification:

B01F017/00
B01F003/12
C09K003/00

US Classification:

516 78, 510100, 427219, 428405

Abstract:

A process of producing an organically modified metal oxide wherein an aqueous slurry of a metal oxide which can be peptized in the presence of an acid is admixed with an aqueous slurry of an oregano silage having the formula RSiX, the mixture of the aqueous slurry and the oregano silage being thermally aged to produce a colloidal metal oxide sol which can be dried to produce a powder which is readily discernible in polar compounds such as alcohols, water and the like.

US Patent:

62248464, May 1, 2001

Filed:

Aug 21, 1999

Appl. No.:

9/379147

Inventors:

Paul K. Hurlburt - Leander TX
Daniel T. Plummer - Austin TX

Assignee:

Condea Vista Company - Houston TX

International Classification:

C01F 702

US Classification:

423625

Abstract:

A process for making a modified boehmite alumina comprising reacting at elevated temperatures a boehmite alumina with a compound having the formula: X(SO. sub. 3 M). sub. n wherein X is an organic moiety, M in a monovalent cation, and n is an integer reflecting the number of SO. sub. 3 M groups bonded to said organic moiety to produce a reaction mixture containing modified boehmite alumina and recovering solid, modified boehmite alumina from the reaction mixture.