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:
Mar. 24, 2015
Filed:
Dec. 01, 2011
Applicants:
Arun G. Basrur, Pune, IN;
Ravindra R. Tupe, Pune, IN;
Hwaili Soo, Charleston, WV (US);
Paul V. Hinman, Charleston, WV (US);
Inventors:
Arun G. Basrur, Pune, IN;
Ravindra R. Tupe, Pune, IN;
Hwaili Soo, Charleston, WV (US);
Paul V. Hinman, Charleston, WV (US);
Assignee:
Dow Technology Investments LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 301/03 (2006.01); C07D 301/10 (2006.01);
U.S. Cl.
CPC ...
C07D 301/10 (2013.01);
Abstract
A method for starting-up a high efficiency alkylene oxide catalyst is described. A feed gas comprising an alkylene, oxygen, and at least one organic chloride is introduced to the catalyst. The molar ratio of oxygen to alkylene, reaction temperature, and overall chloriding effectiveness are adjusted to specified ranges of values within a specified catalyst aging period.