Michael K Potter

US Patent:

6448436, Sep 10, 2002

Filed:

Aug 22, 2000

Appl. No.:

09/644003

Inventors:

Keith Michael Kreitman - Houston TX
Steve Edward Brewer - Houston TX
John Bernard Rodden - Houston TX
Robert Lawrence Blackbourn - Houston TX
Thomas Fairchild Brownscombe - Houston TX
James Laurel Buechele - Houston TX
Ye-Mon Chen - Sugar Land TX
Zaida Diaz - Houston TX
Donn Anthony DuBois - Houston TX
Raymond Lawrence June - Singapore, SG
Brendan Dermot Murray - Houston TX
Michael Wayne Potter - Sugar Land TX

Assignee:

Mossi Ghisolfi Overseas, S. A. - Luxembourg

International Classification:

C07C 51265

US Classification:

562412, 562414

Abstract:

Disclosed is an integrated process for producing 2,6-naphthalene dicarboxylicacid comprising oxidizing a methylnaphthalene feedstock, hydrodebrominating the crude naphthoic acid product under conditions different from any work known in the art, forming a potassium salt of the acid; disproportionating the potassium salt to produce 2,6 potassium salts of NDA; selectively precipitating K NDA; selectively precipitating the monopotassium salt of 2,6 NDA(KHNDA); disproportionating the KHNDA into 2,6 NDA and K2NDA; further reacting the 2,6 NDA in a pipe reactor; and drying the product 2,6 NDA by conventional means or directly slurrying directly into a PEN process. The process can tolerate impurities in the economical methylnaphthalene feed and the resulting 2,6 NDA is of high quality with 50 ppm potassium.

US Patent:

7041864, May 9, 2006

Filed:

Dec 11, 2002

Appl. No.:

10/316812

Inventors:

Howard Lam-ho Fong - Sugar Land TX, US
Michael Wayne Potter - Sugar Land TX, US
David Stephen Brown - Sugar Land TX, US

Assignee:

Shell Oil Company - Houston TX

International Classification:

C07C 6/00

US Classification:

585646, 585643, 585647

Abstract:

Ring opening cross metathesis of secondary non-cyclic hydrocarbons with cyclic unsaturated hydrocarbons having 8 carbon atoms or more to produce corresponding unsaturated product hydrocarbons having more than 8 carbon atoms.

US Patent:

58667504, Feb 2, 1999

Filed:

Nov 1, 1995

Appl. No.:

8/548291

Inventors:

Robert Stephen Tomaskovic - Houston TX
Michael Wayne Potter - Sugar Land TX
William Charles Malven - Houston TX

Assignee:

Union Carbide Chemicals & Plastics Technology Corporation - Danbury CT

International Classification:

C07C 700
C07C 710
C10G 1700
B01D 1100

US Classification:

585853

Abstract:

A method for recovering titanium and vanadium compounds, such as alkoxides, from a liquid hydrocarbon mixture by hydrolyzing the mixture with a base or acid wash having a sufficiently different density so that two liquid phases form, and separating the two liquid phases.

US Patent:

6153790, Nov 28, 2000

Filed:

Dec 1, 1998

Appl. No.:

9/201963

Inventors:

Raymond Lawrence June - Houston TX
Michael Wayne Potter - Sugar Land TX
Edward James Simpson - Houston TX
Charles Lee Edwards - Houston TX

Assignee:

Shell Oil Company - Houston TX

International Classification:

C07C 51255

US Classification:

562414

Abstract:

A process to produce terephthalic acid is provided, the process including the steps of: providing a feed stream comprising a dialkyl substituted aromatic and in an organic acid solvent: contacting the feed stream with an oxidant, the oxidant containing at least 50% by volume oxygen and at an oxygen partial pressure of at least 1 psia, at a temperature between about 80. degree. C. and about 130. degree. C. , in the presence of a catalyst system comprising zirconium and cobalt, wherein the contacting is done in a stirred tank reactor; removing from the stirred tank reactor a vapor stream comprising the organic acid, water vapor and unreacted oxidant; condensing at least a portion of the organic acid and water from the vapor stream; separating at least a portion of the water from the organic acid back to the stirred tank reactor; returning at least a portion of the condensed organic acid back to the stirred tank reactor; continuously recovering from the stirred tank reactor a product comprising a diacid substituted aromatic; isolating solid crystals of diacid substituted aromatic from the reactor product; and recovering from the solid crystals a diacid substituted aromatic having a purity of preferably at least 97% by weight.

US Patent:

59482125, Sep 7, 1999

Filed:

Oct 21, 1996

Appl. No.:

8/734690

Inventors:

Peter Anthony Kilty - Houston TX
Michael Wayne Potter - Sugar Land TX

Assignee:

Union Carbide Chemicals & Plastics Technology Corporation - Danbury CT

International Classification:

B01D 310
C01G 2302
C07C 17383

US Classification:

203 29

Abstract:

A process for the separation of a mixture of a titanium tetrahalide, a reaction diluent of an intermediate boiling point and at least one of a titanium alkoxide, ester or complex thereof without the aid of a distinct separation solvent by subjecting the mixture to a first distillation step to separate the titanium tetrahalide as the lights component and subjecting the heavies product to a second distillation step to recover a portion of the reaction diluent as the lights component.

US Patent:

61038466, Aug 15, 2000

Filed:

May 5, 1999

Appl. No.:

9/305491

Inventors:

Carl Lesley Willis - Houston TX
Robert Charles Bening - Katy TX
Michael Wayne Potter - Sugar Land TX
Grant Wesley Haddix - Katy TX
David Karl Schisla - Amsterdam, NL
Thomas Carl Semple - Friendswood TX
Daniel Earl Goodwin - Katy TX

Assignee:

Shell Oil Company - Houston TX

International Classification:

C08F 3606
C08F 446

US Classification:

526335

Abstract:

The preparation of di- or polyfunctional polymers by anionic polymerization using functionalized initiators having the structure R. sup. 1 R. sup. 2 R. sup. 3 Si--A--B, wherein each R is methyl and A is a hydrocarbon bridging group containing from 1 to 25 carbon atoms, and B is an alkali metal, is improved when polymerization occurs in the presence of a polymerization termination inhibitor which is a metal alkyl which has been added at a concentration to afford a molar ratio of the termination inhibitor to living polymer chain ends of about 0. 1:1 to about 10:1.

US Patent:

56819030, Oct 28, 1997

Filed:

Dec 20, 1995

Appl. No.:

8/575377

Inventors:

Herbert Elliott Fried - Houston TX
Michael Wayne Potter - Sugar Land TX

Assignee:

Shell Oil Company - Houston TX

International Classification:

C08F 830

US Classification:

525377

Abstract:

A process for the preparation of polymeric alpha,omega-dialdehydes, diacids and mixtures thereof, which process comprises reacting a corresponding polymeric aliphatic alkanediol with a stable free radical nitroxide in the presence of a NO. sub. x -generating compound, an oxidant and, optionally, a solvent and/or a bromide-containing compound, and thereafter separating out the polymeric alpha,omega-dialdehyde and/or diacid.

US Patent:

49541374, Sep 4, 1990

Filed:

Dec 19, 1989

Appl. No.:

7/452438

Inventors:

Michael W. Potter - Sugar Land TX

Assignee:

Shell Oil Company - Houston TX

International Classification:

C10J 300
C10J 346

US Classification:

48210

Abstract:

A process for the gasification of coal is described which comprises partially combusting particulate coal in a gasification reactor comprising a gasification zone and a water bath and producing a hot gaseous stream containing synthesis gas and flyash, and slag, in the gasification zone. The slag produced is allowed to discharge from the gasification zone into the water bath, the redox potential of the water bath being formulated or maintained at a level sufficient to inhibit sulfide presence or inclusion in the slag.