Process of making mixed metal oxide catalysts for the...

Details Process of making mixed metal oxide catalysts for the... Process of making mixed metal oxide catalysts for the...

2006-01-17

2009-02-24

Saeed, Kamal A (Department: 1626)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

C502S240000, C502S255000, C502S263000, C502S313000, C568S477000

Reexamination Certificate

active

07494952

ABSTRACT:
The present invention is for a process for making a catalyst for production of unsaturated aldehydes, such as methacrolein, by gas phase catalytic oxidation of olefins, such as isobutylene, said catalyst containing oxides of molybdenum, bismuth, iron, cesium, tungsten, cobalt, nickel, antimony, magnesium and zinc. The process is a synthesis of the catalyst with aging or digestion of the reaction slurry with little or no agitation. A catalyst precursor is formed from the water insoluble and water soluble components and is dried. The metal oxide catalyst is formed by calcination of the catalyst precursor.

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patent: 4388223 (1983-06-01), Ferlazzo et al.
patent: 7232788 (2007-06-01), Liang et al.
patent: 2005/0159621 (2005-07-01), Liang et al.

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