Gordon G Harkreader

51853086, Feb 9, 1993

May 6, 1991

7/696215

William J. Bartley - Charleston WV
Simon Jobson - Hull, GB2
Gordon G. Harkreader - Charleston WV
Melanie Kitson - Buckinghamshire, GB2
Michael F. Lemanski - Cleveland OH

BP Chemicals Limited - London

B01J 3128

502170

A shell impregnated catalyst for use in the production of vinyl acetate from ethylene, acetic acid and an oxygen containing gas is provided. The catalyst has a productivity of greater than 661 grams of vinyl acetate per hour per liter of catalyst at 150. degree. C. and consists essentially of: (1) a catalyst support having a particle diameter from about 3 to about 7 mm and a pore volume of 0. 2 to 1. 5 ml per gram (2) palladium and gold distributed in the outermost 1. 0 mm thick layer of the catalyst support particles, and (3) from about 3. 5 to 9. 5% by weight of potassium acetate. The catalyst is characterized by having a gold to palladium weight ratio in the range 0. 60 to 1. 25.

51552620, Oct 13, 1992

Oct 23, 1991

7/780392

William G. Etzkorn - Cross Lanes WV
Gordon G. Harkreader - Charleston WV

Union Carbide Chemicals & Plastics Technology Corporation - Danbury CT

C07C 5125
C07C 57055

562532

The processes for oxidation of isobutylene to methacrolein and the oxidation of isobutylene to methacrylic acid in two stages with methacrolein as an intermediate are improved by use of essentially inert essentially anhydrous diluent gases to replace steam in the reaction streams. In particular, the uses of essentially inert essentially anhydrous diluents which raise the composite heat capacity of the diluent gas mixture to at least about 6. 5 calories/(gram-mole) (. degree. C. ) will improve selectivity to desired products and will reduce both the waste water load on the system and by-product formation.

49994522, Mar 12, 1991

May 15, 1989

7/351479

Donald L. Bunning - South Charleston WV
William G. Etzkorn - Cross Lanes WV
William M. Haydon - South Charleston WV
Gordon G. Harkreader - Charleston WV
Jonathan J. Kurland - Charleston WV
Wai C. Liu - Charleston WV

Union Carbide Chemicals and Plastics Company Inc. - Danbury CT

C07C 6700

560208

A process for producing acrylic ester by the catalytic esterification of a crude liquid stream of enriched acrylic acid recovered by the partial condensation of the reaction gas effluent from the catalytic oxidation of propylene and/or acrolein. The partial condensation allows a significant proportion of volatile aldehydes and water to pass through the first recovery stage to a second stage for conventional recovery, along with uncondensed acrylic acid vapors and the remainder of the uncondensed reaction gases.

52741818, Dec 28, 1993

Oct 7, 1992

7/957143

William J. Bartley - Charleston WV
Simon Jobson - Hull, GB2
Gordon G. Harkreader - Charleston WV
Melanie Kitson - Buckinghamshire, GB2
Mike Lemanski - Cleveland OH

BP Chemicals Limited - London

C07C 6705

560245

A shell impregnated catalyst for use in the production of vinyl acetate from ethylene, acetic acid and an oxygen containing gas is provided. The catalyst has a productivity of greater than 661 grams of vinyl acetate per hour per liter of catalyst at 150. degree. C. and consists essentially of: (1) a catalyst support having a particle diameter from about 3 to about 7 mm and a pore volume of 0. 2 to 1. 5 ml per gram (2) palladium and gold distributed in the outermost 1. 0 mm thick layer of the catalyst support particles, and (3) from about 3. 5 to 9. 5% by weight of potassium acetate. The catalyst is characterised by having a gold to palladium weight ratio in the range 0. 60 to 1. 25.

51839369, Feb 2, 1993

Oct 25, 1991

7/781657

William G. Etzkorn - Cross Lanes WV
Gordon G. Harkreader - Charleston WV

Union Carbide Chemicals & Plastics Technology Corporation - Danbury CT

C07C 5116

562532

The process for oxidation of propylene to acrolein and the oxidation of propylene to acrylic acid in two stages with acrolein as an intermediate are improved by use of essentially inert essentially anhydrous diluent gases to replace steam in the reaction streams. In particular, the use of essentially inert essentially anhydrous diluents which raise the composite heat capacity of the diluent gas mixture to at least about 6. 5 calories/(gram-mole) (. degree. C. ) will improve selectively to desired products and will reduce both the waste water load on the system and by-product formation. Reduction in second-stage catalyst efficiency is compensated for by introducing steam to the feed to the second-stage, and/or by increasing the operating temperature of the second-stage, and/or by increasing the active surface area of the second-stage catalyst.

51985780, Mar 30, 1993

Jun 25, 1990

7/542697

William G. Etzkorn - Cross Lanes WV
Gordon G. Harkreader - Charleston WV

Union Carbide Chemicals - Danbury CT
Plastics Technology Corporation - Danbury CT

C07C 5116
C07C 5100

562532

The processes for oxidation of propylene to acrolein and the oxidation of propylene to acrylic acid in two stages with acrolein as an intermediate are improved by use of essentially inert essentially anhydrous diluent gases to replace steam in the reaction streams. In particular, the use of essentially inert essentially anhydrous diluents which raise the composite heat capacity of the diluent gaas mixture to at least about 6. 5 calories/(gram-mole) (. degree. C. ) will improve selectivity to desired products and will reduce both the waste water load on the system and by-product formation.