Sd Lizenzverwertungsgesellschaft Mbh & Co Kg

Scientific Design Company, Inc.

Howard Sachs

Andrzej Rokicki

Nabil M Rizkalla

Serguei Pak

Mansoor Husain

Ashok S Padia

Christian Gueckel

Martin Millman

Nabil Rizkalla

Christian J Gueckel

Mansoor Hussein

A process for the epoxidation of an olefin is disclosed which includes: reacting a feed gas composition containing an olefin, oxygen, and a moderator selected from the group consisting of diatomic chlorine and perhalogenated hydrocarbons, in the presence of an epoxidation catalyst.

Process for olefin oxide production

A method for the start-up of a process for the epoxidation of ethylene comprising: initiating an epoxidation reaction by reacting a feed gas composition containing ethylene, and oxygen, in the presence of an epoxidation catalyst at a temperature of about 180&#xb0; C. to about 210&#xb0; C.; adding to the feed gas composition about 0.05 ppm to about 2 ppm of moderator; increasing the first temperature to a second temperature of about 240&#xb0; C. to about 250&#xb0; C., over a time period of about 12 hours to about 60 hours; and maintaining the second temperature for a time period of about 50 hours to about 150 hours.

Process for epoxidation start-up

A geometrically shaped solid carrier is provided that improves the performance and effectiveness of an olefin epoxidation catalyst for epoxidizing an olefin to an olefin oxide. In particular, improved performance and effectiveness of an olefin epoxidation catalyst is achieved by utilizing a geometrically shaped refractory solid carrier in which at least one wall thickness of said carrier is less than 2.5 mm.

Geometrically sized solid shaped carrier for olefin epoxidation catalyst

A method for controlling ethylene oxidation uses ethylene and oxygen, in conjunction with a silver based catalyst, a moderator and a co-moderator, to form ethylene oxide. When controlling the ethylene oxidation reaction, the moderator concentration is maintained constant within a comparatively narrow operative concentration range and the co-moderator concentration is varied within a comparatively wider operative concentration range, to optimize a catalyst property such as the catalyst activity and/or the catalyst selectivity.

Ethylene oxide production using fixed moderator concentration

An improved process for the production of maleic anhydride by the catalytic oxidation of n-butane. Maleic anhydride is produced by reacting n-butane gas with oxygen or an oxygen-containing gas, in the presence of a vanadium phosphorus oxide (VPO) catalyst. An improved yield and selectivity in the production of maleic anhydride is attained by the addition of a substantially pure carbon monoxide gas stream in the reactant feed stream. A process is given for the production of maleic anhydride by reacting a combination of gas streams in the presence of a VPO catalyst. The combination of gas streams comprises an n-butane gas stream, an oxygen or oxygen-containing gas stream, and a substantially pure carbon monoxide gas stream. The amount of carbon monoxide present in the combination of gas streams is from about 0.5 volume % to about 6 volume % based on the total volume of the combination of gas streams.

Growing community of inventors

Bronx, NY, United States of America

Howard Sachs