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. 17, 2020
Filed:
Jul. 17, 2017
Applicant:
Nova Chemicals (International) S.a., Fribourg, CH;
Inventors:
Vasily Simanzhenkov, Calgary, CA;
Xiaoliang Gao, Calgary, CA;
David Jeffrey Sullivan, Calgary, CA;
Hanna Drag, Calgary, CA;
Marie Annette Barnes, Calgary, CA;
Assignee:
NOVA Chemicals (International) S.A., Fribourg, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 27/057 (2006.01); B01J 23/00 (2006.01); B01J 23/28 (2006.01); B01J 37/00 (2006.01); B01J 37/06 (2006.01); B01J 37/08 (2006.01); B01J 37/10 (2006.01); C07C 5/48 (2006.01);
U.S. Cl.
CPC ...
B01J 27/0576 (2013.01); B01J 23/002 (2013.01); B01J 23/28 (2013.01); B01J 37/0036 (2013.01); B01J 37/06 (2013.01); B01J 37/08 (2013.01); B01J 37/10 (2013.01); C07C 5/48 (2013.01); B01J 2523/00 (2013.01); C07C 2523/20 (2013.01); C07C 2523/22 (2013.01); C07C 2523/28 (2013.01); C07C 2527/057 (2013.01); Y02P 20/52 (2015.11);
Abstract
The preparation of an oxidative dehydrogenation catalyst comprising Mo, V, Nb and Te using a hydrothermal step the activity and reproducibility of the catalyst is improved by conduction the hydrothermal step at higher pressures while permitting gaseous products to leave the reactor. In some instances a condenser may be upstream of the pressure relief valve.