Darrell Wayne Walker

US Patent:

42526809, Feb 24, 1981

Filed:

Dec 3, 1979

Appl. No.:

6/099273

Inventors:

Darrell W. Walker - Bartlesville OK
Floyd Farha - Bartlesville OK

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

B01J 2714
B01J 2702
C07C 509

US Classification:

252435

Abstract:

In the precipitation of a tin-containing component and a phosphorus-containing component from an acid solution with a base to prepare a catalyst of improved selectivity to produce diolefin from corresponding mono-olefin there is used with the base, or thereafter, a water-soluble sulfide. The water-soluble sulfide can be at least one of an alkali-and an alkaline earth metal sulfide and ammonium sulfide.

US Patent:

41761405, Nov 27, 1979

Filed:

Oct 27, 1977

Appl. No.:

5/844931

Inventors:

Brent J. Bertus - Bartlesville OK
Darrell W. Walker - Bartlesville OK

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

C07C 1112

US Classification:

585629

Abstract:

A process is used to dehydrogenate organic compounds to a higher degree of unsaturation by contacting in a first step, the organic compound with a calcined zinc titanate catalyst modified with lithium or magnesium. In the second step, the catalyst is contacted with oxygen essentially in the absence of the dehydrogenatable organic compound. The first and second steps are repeated sequentially.

US Patent:

47939141, Dec 27, 1988

Filed:

Nov 13, 1987

Appl. No.:

7/120576

Inventors:

Brent J. Bertus - Bartlesville OK
Darrell W. Walker - Media PA

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

C10G 1100

US Classification:

208113

Abstract:

A novel cracking catalyst, a method of preparing same and an improved hydrocarbon cracking process are provided wherein adverse effects of metals such as nickel, vanadium, iron, copper and cobalt in the cracking catalyst are precluded or mitigated by contacting the cracking catalyst with an antimony treating agent comprising at least one of elemental antimony and compounds thereof and a lithium treating agent comprising at least one of elemental lithium and compounds thereof whereby there is added to said catalyst a modifying amount of each antimony treating agent and lithium treating agent with the weight ratio of antimonmy to lithium being such as to provide passivation of contaminating metals greater than the sum of the passivation effect of each of antimony treating agent and lithium treating agent individually.

US Patent:

44840152, Nov 20, 1984

Filed:

Jun 22, 1983

Appl. No.:

6/506951

Inventors:

Marvin M. Johnson - Bartlesville OK
Darrell W. Walker - Bartlesville OK
Gerhard P. Nowack - Bartlesville OK

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

C07C 508

US Classification:

585262

Abstract:

A catalyst and process for the selective hydrogenation of acetylene, said catalyst comprising palladium and silver with the palladium concentrated as a skin and the silver distributed throughout.

US Patent:

42631335, Apr 21, 1981

Filed:

Feb 28, 1980

Appl. No.:

6/125618

Inventors:

Lewis E. Drehman - Bartlesville OK
Floyd E. Farha - Bartlesville OK
Darrell W. Walker - Bartlesville OK

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

C10G 3504
C10G 4702

US Classification:

208134

Abstract:

The catalytic reforming of a feedstock which contains at least one reformable organic compound or the hydrocracking of a feedstock which contains at least one hydrocrackable organic compound is carried out in the presence of a catalyst composition comprising zinc and titanium.

US Patent:

43703100, Jan 25, 1983

Filed:

Jun 23, 1981

Appl. No.:

6/276594

Inventors:

Darrell W. Walker - Bartlesville OK

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

C01F 702

US Classification:

423600

Abstract:

A strong zinc aluminate is prepared by first wetting a particulate alumina hydrate with a dilute acid to form a paste. Particulate zinc oxide is then added to the resulting paste. The mixture of alumina hydrate and zinc oxide is then dried and calcined to form zinc aluminate.

US Patent:

42183430, Aug 19, 1980

Filed:

May 1, 1979

Appl. No.:

6/035132

Inventors:

Darrell W. Walker - Bartlesville OK
Robert J. Hogan - Bartlesville OK
Floyd Farha - Bartlesville OK

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

B01J 2714

US Classification:

252435

Abstract:

Hydrocarbon feedstocks are dehydrogenated to compounds having the same number of carbon atoms and a higher degree of unsaturation by contacting the feedstock in the vapor phase in the presence of molecular oxygen with a catalyst consisting essentially of nickel, lead, phosphorus and combined oxygen, and optionally, an alkali metal. Representative of such conversions is the oxidative dehydrogenation of butane to butenes and butadiene.

US Patent:

40101142, Mar 1, 1977

Filed:

Apr 30, 1975

Appl. No.:

5/573210

Inventors:

Darrell W. Walker - Bartlesville OK
Floyd E. Farha - Bartlesville OK

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

B01J 2714

US Classification:

252437

Abstract:

Ferrous metal/tin/phosphorus/alkali metal/oxygen-containing oxidative dehydrogenation catalysts are improved by including a small amount of lead; higher yields and higher gas phase selectivities to dehydrogenated products in the oxidative dehydrogenation process are achieved by these novel lead-containing catalysts.