Lawrence W Gosser

51357313, Aug 4, 1992

May 15, 1991

7/700684

Lawrence W. Gosser - Wilmington DE
Michael A. Paoli - Memphis TN

E. I. Du Pont de Nemours and Company - Wilmington DE

C01B 1501

423584

An improved process for directly producing hydrogen peroxide from oxygen and hydrogen is disclosed. Hydrogen and oxygen are contacted in the presence of a catalyst, acid, halide ions and a multifunctional phosphonate or phosphate preparation so as to increase hydrogen peroxide yield and decrease catalyst deactivation.

43024351, Nov 24, 1981

Sep 22, 1980

6/189059

Lawrence W. Gosser - Wilmington DE

E. I. Du Pont de Nemours and Company - Wilmington DE

C07C 29136
C01B 15026

423591

Process comprising contacting and reacting a diarylketone of the formula RCOR', wherein each of R and R' is aryl, the same or different, and hydrogen over at least a catalytic amount of lead-poisoned palladium catalyst, for example, Lindlar catalyst, at a hydrogen gage pressure in the range from about 150 kPa to about 15,000 kPa, preferably from about 340 kPa to about 3400 kPa, at a temperature in the range from about 50. degree. C. to about 200. degree. C. , preferably from about 100. degree. C. to about 150. degree. C. , to produce diarylmethanol of the formula RCHOHR', wherein R and R' are as defined above.

47724587, Sep 20, 1988

Nov 19, 1986

6/932360

Lawrence W. Gosser - Wilmington DE
Jo-Ann T. Schwartz - Chadds Ford PA

E. I. Du Pont de Nemours and Company - Wilmington DE

C01B 1502

423584

A process for making hydrogen peroxide from hydrogen and oxygen employing an aqueous reaction medium containing a bromide promoter is disclosed.

48897051, Dec 26, 1989

May 13, 1988

7/193842

Lawrence W. Gosser - Wilmington DE

E. I. Du Pont de Nemours and Company - Wilmington DE

C01B 1502

423584

A catalytic process for making H. sub. 2 O. sub. 2 from H. sub. 2 and O. sub. 2 in an aqueous medium which comprises using H. sup. + ions and BR. sup. - ions each, independently, in the range from about 0. 001 to about 0. 05 M.

43036325, Dec 1, 1981

Dec 14, 1979

6/103061

Lawrence W. Gosser - Wilmington DE

E. I. Du Pont de Nemours and Company - Wilmington DE

C01B 1502

423591

Process comprising contacting and reacting a diarylmethanol having 13 to 25 carbon atoms and of the formula RCHOHR' wherein each of R and R' is aryl, the same or different, in the liquid state, at a temperature of about 130. degree. -260. degree. C. , with gaseous oxygen to produce hydrogen peroxide and diaryl ketone of the formula RCOR' wherein R and R' are the same as above.

52216217, Jun 22, 1993

May 24, 1991

7/705420

David L. Anton - Wilmington DE
Robert DiCosimo - Wilmington DE
Lawrence W. Gosser - Wilmington DE

E. I. du Pont de Nemours and Company - Wilmington DE

C12P 740
C12P 754
C12N 904

435136

A process or the production of glyoxylic acid involving the enzymatic oxidation of glycolic acid. The process provides a commercially practical method involving the reaction of glycolic acid in an aqueous solution at a starting concentration range of 200 mM to 2,500 mM in the presence of oxygen, glycolate oxidase and catalase at a pH of 7 to 10.

48329380, May 23, 1989

May 13, 1988

7/193843

Lawrence W. Gosser - Wilmington DE
Jo-Ann T. Schwartz - Chadds Ford PA

E. I. Du Pont de Nemours and Company - Wilmington DE

C01B 1502

423584

An improved method for making hydrogen peroxide from the direct combination of hydrogen and oxygen using a platinum/palladium catalyst in which the weight ratio of platinum to platinum plus palladium is in the range of about 0. 02 to about 0. 2.

53129571, May 17, 1994

Oct 15, 1992

7/961593

Albert L. Casalnuovo - Wilmington DE
Thaliyil V. Rajanbabu - Wilmington DE
Lawrence W. Gosser - Wilmington DE
Ronald J. McKinney - Wilmington DE

E. I. Du Pont de Nemours and Company - Wilmington DE

C07C25533

558410

The invention provides a process for enantioselective hydrocyanation of aromatic vinyl compounds which produces nonracemic mixtures of chiral, arylpropionitriles; novel carbohydrate phosphorus and nickel catalyst compositions; and optically pure (S)-(-)-2-(6-methoxy-2-naphthalene)propionitrile.