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:
Aug. 26, 2014
Filed:
Apr. 03, 2012
Liping Zhang, Lake Jackson, TX (US);
Ravindra Radhakisan Tupe, Helsinki, FI;
Ailene Gardner Phillips, Charleston, WV (US);
Paul Victor Hinman, Charleston, WV (US);
Hwaili Soo, Charleston, WV (US);
Liping Zhang, Lake Jackson, TX (US);
Ravindra Radhakisan Tupe, Helsinki, FI;
Ailene Gardner Phillips, Charleston, WV (US);
Paul Victor Hinman, Charleston, WV (US);
Hwaili Soo, Charleston, WV (US);
Dow Technology Investments LLC, Midland, MI (US);
Abstract
A process for conditioning a high efficiency silver catalyst used to manufacture ethylene oxide from ethylene, oxygen, and at least one organic chloride is described. A non-reactive conditioning gas comprising at least one of ethylene, oxygen, and a ballast gas is introduced to the catalyst at a conditioning temperature ranging from 150° C. to 180° C. for a selected period of at least 4 hours.