Arco Chemical Technology, L.p.

Lyondell Chemical Technology, L.p.

Air Products and Chemicals, Inc.

Robert N Cochran

Lawrence M Candela

Rajendra S Albal

Jay F Miller

Bernard Cooker

Michel Deeba

Shaw-Chan Lin

Peter J Whitman

David W Leyshon

Mark A Liepa

Bi Le-Khac

Roger A Grey

Eric John Beckman

John C Jubin, Jr

Rangasamy Pitchai

Prakash G Balan

Walter S Dubner

Ahmad Soltani-Ahmadi

W Wayne Wentzheimer

John H Speidel, Jr

William J Ambs

Robert Nedwick

Scott H Sandler

Alan P Woinsky

T Ben Hsu

M Rameswaran

Robert J Jones

Sarah Emma Jones

A catalyst, useful for the direct epoxidation of olefins, is disclosed. The catalyst comprises palladium nanoparticles, support nanoparticles, and a titanium zeolite having a particle size of 2 microns or greater. The palladium nanoparticles are deposited on the support nanoparticles to form supported palladium nanoparticles, and the supported palladium nanoparticles are deposited on the titanium zeolite; or the supported palladium nanoparticles are deposited on a carrier having a particle size of 2 microns or greater. The invention also includes a process for producing an epoxide comprising reacting an olefin, hydrogen and oxygen in the presence of the catalyst. The catalysts are more active in epoxidation reactions, while demonstrating the same or better selectivity.

Direct epoxidation catalyst and process

The invention is a catalyst comprising a titanium or vanadium zeolite, a binder, and zinc oxide, wherein the catalyst is preparing an aqueous mixture of the zeolite, a binder source, and a zinc oxide source, and subjecting the mixture to rapid drying. The catalyst is useful in olefin epoxidation.

Epoxidation catalyst

The invention is a process for epoxidizing an olefin with hydrogen and oxygen in the presence of a catalyst comprising a noble metal and a titanium or vanadium zeolite in a solvent mixture comprising water, methanol, and a C&#x2013;Caliphatic ketone. This process surprisingly gives significantly reduced by-product glycol and glycol ethers formed by the unwanted ring-opening of epoxides.

Direct epoxidation process

Phenol is formed by reaction of oxidant and benzene over a solid catalyst such as Pd on TS-1, the reaction being carried out in carbon dioxide solvent at conditions effective to provide a dense phase reaction mixture.

Dense phase oxidation of benzene

Oxidation products are recovered from a mixture of the products in a dense phase or supercritical solvent by a liquid&#x2014;liquid extraction at dense phase conditions.

Product recovery from supercritical mixtures

Propylene oxide is produced by liquid phase reaction of propylene oxygen and hydrogen in contact with a solid epoxidation catalyst at elevated temperature and pressure, the reaction conditions being regulated to provide a weight ratio of dissolved oxygen to dissolved hydrogen in the liquid reaction mixture of at least 16.

Epoxidation process

An integrated process is provided for the production of propylene oxide from propane wherein propane is dehydrogenated to propylene and hydrogen and the resulting propylene, propane, and hydrogen mixture together with added oxygen is reacted over a palladium on titanium silicilite catalyst to form propylene oxide, the molar ratio of oxygen to hydrogen in the reaction feed being at least about 2/1.

Propylene oxide production

A process for the purification of tertiary alkyl hydroperoxide containing contaminating quantities of primary and secondary alkyl hydroperoxides by contacting the impure hydroperoxide mixture with anhydrous carboxylic acid derivative such as maleic anhydride and subsequently reacting the resulting mixture with basic material such as aqueous caustic and recovering purified tertiary alkyl hydroperoxide.

Removal of primary and secondary hydroperoxide impurities from tertiary

The invention relates to the electrochemical production of alkylene oxides and particularly to a process wherein an alkylene oxide is produced at both the anode and cathode of an electrochemical reactor.

Akylene oxide production

A process is provided whereby hydrogen peroxide containing various organic impurities is purified by contact with an organic nonionic hydrophobic polymeric adsorbent, preferably derived from polymerized styrene.

Purification of hydrogen peroxide

Hydrogen peroxide is produced by liquid phase molecular oxidation of methyl benzyl alcohol in an oxidation zone, product hydrogen peroxide being recovered as vapor from the oxidation zone.

Production of hydrogen peroxide

The present invention relates to a process for the oxidation of isobutane in the liquid phase to produce TBA and TBHP wherein at least a portion of the oxidation product mixture is obtained as distillate from fractional distillation of vapors from the oxidation zone.

Oxidation of isobutane to tertiary butyl hydroperoxide

In the co-production oxide and styrene monomer, there is produced a sodium-containing heavy residue stream previously suitable only as a low grade fuel. In accordance with the invention, the heavy residue stream is contacted with aqueous acid, and the resulting mixture is phase separated into an aqueous sodium-containing phase and an organic phase reduced in sodium, and at least a portion of the organic phase reduced in sodium is converted to styrene monomer.

Propylene oxide-styrene monomer process

The present invention relates to a process for the oxidation of isobutane in the liquid phase to produce TBA and TBHP wherein at least a portion of the oxidation product mixture is obtained from the condensate of vapors from the oxidation zone.

Growing community of inventors

West Chester, PA, United States of America

Robert N Cochran