1
Kiyoshi Katsumoto, David M Marquis: Method of preparing vanadium (IV) phosphate composition with high intrinsic surface area. Chevron Research Company, D A Newell, John Stoner Jr, A T Bertolli, January 2, 1979: US04132670 (53 worldwide citation)

A crystalline vanadium (IV) phosphate composition having an intrinsic surface area in excess of 10 square meters per gram is prepared by the reaction of orthophosphoric acid with a vanadium (IV) oxycompound. The vanadium compound is suspended in a suitable hydroxylic organic medium, for example isob ...


2
James Melvin Davidson: Method for concentrating a slurry containing a solid particulate component. Chevron Research Company, D A Newell, John Stoner Jr, A T Bertolli, October 17, 1978: US04120911 (34 worldwide citation)

An improved method for the concentration of a slurry containing a solid particulate component is described. In the method, the slurry is contacted with a rotatable filtration assembly and some liquid is withdrawn from the slurry. When the rotational velocity of the unit is sufficient to develop a su ...


3
Robert G Wall: Catalyst for ester hydrogenation. Chevron Research Company, D A Newell, John Stoner Jr, A T Bertolli, September 12, 1978: US04113662 (32 worldwide citation)

A process for hydrogenation of esters to alcohols which comprises contacting the ester with hydrogen and a catalyst comprising cobalt, zinc and copper under catalytic hydrogenation conditions including a temperature between 150.degree. and 450.degree. C and a pressure of 500-10,000 psig.


4
Kiyoshi Katsumoto, David M Marquis: Method for preparing maleic anhydride. Chevron Research Company, D A Newell, John Stoner Jr, A T Bertolli, February 5, 1980: US04187235 (32 worldwide citation)

A crystalline vanadium (IV) phosphate composition having an intrinsic surface area in excess of 10 square meters per gram is prepared by the reaction of orthophosphoric acid with a vanadium (IV) oxycompound. The vanadium compound is suspended in a suitable hydroxylic organic medium, for example isob ...


5
John B Wilkes: Hydrogenation catalyst. Chevron Research Company, D A Newell, John Stoner Jr, A T Bertolli, April 22, 1980: US04199479 (19 worldwide citation)

A catalyst composition having an intrinsic surface area above about 60 square meters per gram as measured by the BET nitrogen adsorption method, said catalyst comprising from about 1 to 30 weight percent of a finely divided silica component, and from about 1 to 99 weight percent of a hydrogenating c ...


6
Ronald A Schneider: Synthesis of acrylic acids and esters. Chevron Research Company, D A Newell, John Stoner Jr, A T Bertolli, August 21, 1979: US04165438 (17 worldwide citation)

Acrylic acids and esters are produced by reacting a lower alkanoic acid or lower alkyl ester thereof with formaldehyde in the presence of a vanadium orthophosphate catalyst having an intrinsic surface area of from about 10 m.sup.2 /g to about 50 m.sup.2 /g.


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Milutin Simic: Plasticized sulfur composition. Chevron Research Company, D A Newell, John Stoner Jr, A T Bertolli, August 14, 1979: US04164428 (16 worldwide citation)

A plasticized sulfur composition having improved chemical resistance, comprising at least 50% by weight sulfur, a sulfur plasticizer, a mineral suspending agent, and an organosilane stabilizing agent.


9
Kiran R Bakshi: Process for preparing glycolic acid from formaldehyde using acetic acid. Chevron Research Company, D A Newell, John Stoner Jr, A T Bertolli, January 23, 1979: US04136112 (12 worldwide citation)

The hydrogen fluoride-catalyzed carbonylation of formaldehyde to prepare glycolic acid can be carried out with a significant reduction in by-product formation and at a significantly improved rate by incorporating minor amounts of acetic acid in the reaction medium.


10
Robert G Wall: Ester hydrogenation using cobalt, zinc and copper oxide catalyst. Chevron Research Company, D A Newell, John Stoner Jr, A T Bertolli, April 10, 1979: US04149021 (10 worldwide citation)

A process for hydrogenation of esters to alcohols which comprises contacting the ester with hydrogen and a catalyst comprising cobalt, zinc and copper under catalytic hydrogenation conditions including a temperature between 150.degree. and 450.degree. C. and a pressure of 500-10,000 psig.