The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 28, 2010
Filed:
Sep. 11, 2007
Nabil Rizkalla, Rivervale, NJ (US);
Howard Sachs, Bronx, NY (US);
Mansoor Firoz Husain, North Brunswick, NJ (US);
Christian J. Gueckel, Paramus, NJ (US);
Andrzej Rokicki, Mountain Lakes, NJ (US);
Nabil Rizkalla, Rivervale, NJ (US);
Howard Sachs, Bronx, NY (US);
Mansoor Firoz Husain, North Brunswick, NJ (US);
Christian J. Gueckel, Paramus, NJ (US);
Andrzej Rokicki, Mountain Lakes, NJ (US);
SD Lizenzverwertungsgesellschaft mbH & Co. KG, Munich, DE;
Abstract
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.