Phosphorus-vanadium-mixed oxide oxidation catalysts and...

Details Phosphorus-vanadium-mixed oxide oxidation catalysts and... Phosphorus-vanadium-mixed oxide oxidation catalysts and...

B - Operations, Transporting

01

J

252/95, 260/365.

B01J 27/198 (2006.01) C07C 51/145 (2006.01) C07C 51/215 (2006.01) C07C 51/25 (2006.01) C07C 51/31 (2006.01)

Patent

CA 1227784

PHOSPHORUS-VANADIUM-MIXED OXIDE OXIDATION CATALYSTS AND PROCESSES FOR THE PREPARATION AND USE THEREOF ABSTRACT OF THE DISCLOSURE Maleic anhydride is produced by the oxida- tion of a non-aromatic hydrocarbon having at least four carbon atoms in a straight chain with molecular oxygen or a molecular oxygen-containing gas in the vapor phase in the presence of a phosphorus-vanadium mixed oxide oxidation catalyst. Such catalysts are are prepared by introducing a substantially pentavalent vanadium-containing compound and a pentavalent phosphorus-containing compound into an alcohol medium capable of reducing the vanadium to a valence state less than +5 in the presence of an alcohol-modifying agent to form a phosphorus-vanadium mixed oxide catalyst precursor. The catalyst pre- cursor is recovered, dried, formed into desired structures, and calcined at temperatures from about 250° C to about 600° C. The catalysts are highly effective in that they exhibit a weight/weight productivity of at least 70 grams of maleic anhydride per kilogram of catalyst per hour.

469844

Affiliated with

Also associated with

Rating

Phosphorus-vanadium-mixed oxide oxidation catalysts and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phosphorus-vanadium-mixed oxide oxidation catalysts and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phosphorus-vanadium-mixed oxide oxidation catalysts and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1281854