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.:

US 9174200 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 03, 2015

Filed:

Dec. 21, 2012
Applicant:

Council of Scientific and Industrial Research, New Delhi, IN;

Inventors:

Rajaram Bal, Mohkampur, IN;

Shilpi Ghosh, Mohkampur, IN;

Shubhra Acharyya Shanka, Mohkampur, IN;

Bipul Sarkar, Mohkampur, IN;

Chandrashekar Pendem, Mohkampur, IN;

Rajib Kumar Singha, Mohkampur, IN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 301/10 (2006.01); B01J 23/00 (2006.01); B01J 23/68 (2006.01); B01J 37/03 (2006.01); B01J 37/16 (2006.01); B01J 35/00 (2006.01); B01J 35/06 (2006.01);
U.S. Cl.
CPC ...
B01J 23/687 (2013.01); B01J 35/0013 (2013.01); B01J 35/06 (2013.01); B01J 37/036 (2013.01); B01J 37/16 (2013.01); C07D 301/10 (2013.01);
Abstract

The present invention provides a process for preparation of Ag—W oxide catalyst for the direct and selective conversion of propylene to propylene oxide. The process provides a direct single step selective vapor phase oxidation of propylene to propylene oxide using molecular oxygen over Ag—W oxide catalysts. The process provides propylene conversion of 10-50% and selectivity for propylene oxide up to 100%.


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