US 11,998,895 B2
Oxidative dehydrogenation catalyst compositions
Vasily Simanzhenkov, Calgary (CA); Xiaoliang Gao, Calgary (CA); Marie Barnes, Calgary (CA); David Sullivan, Calgary (CA); and Yoonhee Kim, Calgary (CA)
Assigned to NOVA Chemicals (International) S.A., Fribourg (CH)
Filed by NOVA Chemicals (International) S.A., Fribourg (CH)
Filed on Jul. 8, 2022, as Appl. No. 17/860,143.
Application 17/860,143 is a division of application No. 16/528,795, filed on Aug. 1, 2019, granted, now 11,413,604.
Claims priority of provisional application 62/714,289, filed on Aug. 3, 2018.
Prior Publication US 2023/0278013 A1, Sep. 7, 2023
Int. Cl. B01J 21/04 (2006.01); B01J 23/00 (2006.01); B01J 23/28 (2006.01); B01J 37/08 (2006.01); C07C 5/48 (2006.01)
CPC B01J 23/28 (2013.01) [B01J 21/04 (2013.01); B01J 23/002 (2013.01); B01J 37/08 (2013.01); C07C 5/48 (2013.01); B01J 2523/55 (2013.01); B01J 2523/56 (2013.01); B01J 2523/64 (2013.01); B01J 2523/68 (2013.01); C07C 2521/04 (2013.01); C07C 2523/20 (2013.01); C07C 2523/22 (2013.01); C07C 2523/28 (2013.01); C07C 2523/32 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of preparing a catalyst composition comprising
providing a mixture comprising alumina, water, and an oxidative dehydrogenation catalyst precursor comprising a mixed metal oxide having the empirical formula:
Mo1.0V0.12-0.49Te0.05-0.25Nb0.10-0.20Od
heating the mixture comprising the oxidative dehydrogenation catalyst precursor, the alumina, and the water to remove at least 40 wt. % of the water to provide a pre-calcination catalyst composition, and
calcining the pre-calcination catalyst composition to provide the catalyst composition having the empirical formula:
Mo1.0V0.12-0.49Te0.05-0.25Nb0.10-0.20Al0.01-2.0Od
wherein d is a number to satisfy the valence of the oxide, wherein the catalyst composition is from 60 wt. % to 80 wt. % amorphous.