Randall C Yeates

US Patent:

7259129, Aug 21, 2007

Filed:

Apr 1, 2004

Appl. No.:

10/816543

Inventors:

Marek Matusz - Houston TX, US
Michael Alan Richard - Fulshear TX, US
John Robert Lockemeyer - Sugar Land TX, US
Alouisius Nicolaas Renee Bos - Amsterdam, NL
Dominicus Maria Rekers - The Hague, NL
Donald Reinalda - Amsterdam, NL
Randall Clayton Yeates - Sugar Land TX, US

Assignee:

Shell Oil Company - Houston TX

International Classification:

B01J 23/50

US Classification:

502347, 502348

Abstract:

A high activity and high selectivity silver catalyst comprising silver and, optionally, one or more promoters supported on a suitable support material having the form of a shaped agglomerate. The structure of the shaped agglomerate is that of a hollow cylinder having a relatively small inside (bore) diameter. The catalyst is made by providing the shaped material of a particular geometry and incorporating the catalytic components therein. The catalyst is useful in the epoxidation of ethylene.

US Patent:

7479565, Jan 20, 2009

Filed:

Jun 16, 2005

Appl. No.:

11/154143

Inventors:

Randall Clayton Yeates - Sugar Land TX, US
Leonid Isaakovich Rubinstein - Houston TX, US

Assignee:

Shell Oil Company - Houston TX

International Classification:

C07D 301/10

US Classification:

549536, 549534, 422189, 502347, 564477, 568679, 568867

Abstract:

A process is provided for the epoxidation of an olefin comprising the steps of: contacting a feed comprising an olefin and oxygen with a catalyst comprising a silver component deposited on a fluoride-mineralized carrier; and producing a product mix comprising an olefin oxide, wherein the partial pressure of olefin oxide in the product mix is greater than about 60 kPa. A process is provided for the epoxidation of an olefin comprising the steps of: contacting a feed comprising an olefin and oxygen with a catalyst comprising a silver component and a high-selectivity dopant deposited on a fluoride-mineralized carrier; and producing a product mix comprising an olefin oxide, wherein the partial pressure of olefin oxide in the product mix is greater than about 20 kPa.

US Patent:

7485597, Feb 3, 2009

Filed:

Jun 26, 2003

Appl. No.:

10/606440

Inventors:

John Robert Lockemeyer - Sugar Land TX, US
Randall Clayton Yeates - Sugar Land TX, US
Donald Reinalda - Amstersam, NL

Assignee:

Shell Oil Company - Houston TX

International Classification:

B01J 21/02
B01J 27/00
B01J 27/198
B01J 27/188
B01J 27/19
B01J 27/192
B01J 27/185
B01J 27/182
B01J 27/057
B01J 27/02
B01J 27/047
B01J 23/00
B01J 23/48
B01J 23/50

US Classification:

502216, 502202, 502208, 502209, 502210, 502211, 502212, 502213, 502214, 502215, 502219, 502305, 502306, 502307, 502308, 502309, 502310, 502311, 502312, 502313, 502314, 502315, 502316, 502317, 502318, 502319, 502320, 502321, 502322, 502323, 502324, 502344, 502347, 502348

Abstract:

A method for improving the selectivity of a supported highly selective epoxidation catalyst comprising silver in a quantity of at most 0. 17 g per msurface area of the support, which method comprises.

US Patent:

7528270, May 5, 2009

Filed:

Jun 16, 2005

Appl. No.:

11/154184

Inventors:

Randall Clayton Yeates - Sugar Land TX, US
Leonid Isaakovich Rubinstein - Houston TX, US

Assignee:

Shell Oil Company - Houston TX

International Classification:

C07D 301/10

US Classification:

549536, 422189, 502347, 502355, 564477, 568867, 568679

Abstract:

A process is provided for the epoxidation of an olefin comprising the steps of: contacting a feed comprising an olefin and oxygen with a catalyst comprising a silver component and a high-selectivity dopant deposited on a fluoride-mineralized carrier; and producing a product mix comprising an olefin oxide, wherein the concentration of carbon dioxide in the feed is less than about 2 mole-%, relative to the total feed.

US Patent:

7547795, Jun 16, 2009

Filed:

Jul 9, 2007

Appl. No.:

11/775100

Inventors:

Marek Matusz - Houston TX, US
Michael Alan Richard - Houston TX, US
John Robert Lockemeyer - Sugar Land TX, US
Alouisius Nicolaas Renee Bos - Amsterdam, NL
Dominicus Maria Rekers - The Hague, NL
Donald Reinalda - Amsterdam, NL
Randall Clayton Yeates - Sugar Land TX, US
Paul Michael McAllister - Houston TX, US

Assignee:

Shell Oil Company - Houston TX

International Classification:

C07D 303/00
C07D 301/10
C07D 301/03
B01J 23/50

US Classification:

549512, 549534, 549536, 502347

Abstract:

A high activity and high selectivity silver catalyst comprising silver and, optionally, one or more promoters supported on a suitable support material having the form of a shaped agglomerate. The structure of the shaped agglomerate is that of a hollow cylinder having a relatively small inside (bore) diameter. The catalyst is made by providing the shaped material of a particular geometry and incorporating the catalytic components therein. The catalyst is useful in the epoxidation of ethylene.

US Patent:

7560411, Jul 14, 2009

Filed:

Aug 30, 2005

Appl. No.:

11/215267

Inventors:

Randall Clayton Yeates - Sugar Land TX, US
John Robert Lockemeyer - Sugar Land TX, US
Marek Matusz - Houston TX, US

Assignee:

Shell Oil Company - Houston TX

International Classification:

B01J 23/68

US Classification:

502317, 502324, 502340, 502341, 502347, 502348, 549534, 549536

Abstract:

A process is provided for preparing a carrier which process comprises incorporating into the carrier at any stage of the carrier preparation a strength-enhancing additive. Also provided is the resultant carrier having incorporated therein a strength-enhancing additive and a catalyst comprising the carrier. Also provided is a process for the epoxidation of an olefin employing the catalyst. Also provided is a method of using the olefin oxide so produced for making a 1,2-diol, a 1,2-diol ether or an alkanolamine.

US Patent:

7825062, Nov 2, 2010

Filed:

Jun 6, 2006

Appl. No.:

11/449019

Inventors:

William H. Gerdes - Hudson OH, US
Thomas Szymanski - Hudson OH, US
Donald J. Remus - Stow OH, US
John R. Lockemeyer - Sugar Land TX, US
Randall Clayton Yeates - Sugar Land TX, US

Assignee:

Saint-Gobain Ceramics & Plastics, Inc. - Worcester MA

International Classification:

B01J 21/00
B01J 23/00
B01J 20/00

US Classification:

502263, 502355, 502407, 502415, 502439

Abstract:

A carrier, which comprises non-platelet alumina and/or a bond material, has a surface area of at least 1. 3 m/g, a total pore volume and a pore size distribution such that at least 80% of the total pore volume is contained in pores with diameters in the range of from 0. 1 to 10 μm, and at least 80% of the pore volume contained in the pores with diameters in the range of from 0. 1 to 10 μm is contained in pores with diameters in the range of from 0. 3 to 10 μm, and a process for the preparation of a carrier which comprises forming a mixture comprising:.

US Patent:

8084390, Dec 27, 2011

Filed:

Jun 6, 2006

Appl. No.:

11/921610

Inventors:

William Herman Gerdes - Hudson OH, US
John Robert Lockemeyer - Sugar Land TX, US
Donald James Remus - Stow OH, US
Thomas Szymanski - Hudson OH, US
Randall Clayton Yeates - Sugar Land TX, US

Assignee:

Shell Oil Company - Houston TX

International Classification:

B01J 23/48
B01J 23/50

US Classification:

502347, 502348

Abstract:

A catalyst which comprises a carrier and silver deposited on the carrier, which carrier has a surface area of at least 1. 3 m2/g, a median pore diameter of more than 0. 8 μm, and a pore size distribution wherein at least 80% of the total pore volume is contained in pores with diameters in the range of from 0. 1 to 10 μm and at least 80% of the pore volume contained in the pores with diameters in the range of from 0. 1 to 10 μm is contained in pores with diameters in the range of from 0. 3 to 10 μm; process for the preparation of a catalyst which process comprises depositing silver on a carrier, wherein the carrier has been obtained by a method which comprises forming a mixture comprising: a) from 50 to 95 weight percent of a first particulate a-alumina having a median particle size (d50) of from 5 to 100 μm; b) from 5 to 50 weight percent of a second particulate a-alumina having a d50 which is less than the d50 of the first particulate a-alumina and which is in the range of from 1 to 10 μm; and c) an alkaline earth metal silicate bond material; weight percent being based on the total weight of a-alumina in the mixture; and firing the mixture to form the carrier; a process for the epoxidation of an olefin, which process comprises reacting a feed comprising an olefin and oxygen in the presence of a said catalyst; and a process for preparing a 1,2-diol, a 1,2-diol ether or an alkanolamine.