Mixed vanadium phosphorus oxide catalysts and preparation...

Details Mixed vanadium phosphorus oxide catalysts and preparation... Mixed vanadium phosphorus oxide catalysts and preparation...

B - Operations, Transporting

01

J

252/98, 260/365.

B01J 27/18 (2006.01) B01J 23/22 (2006.01) B01J 27/198 (2006.01) C07C 51/215 (2006.01) C07D 307/60 (2006.01)

Patent

CA 1150232

ABSTRACT The present invention provides improved oxidation catalysts containing mixed oxides of vanadium and phosphorus and the method for the preparation thereof, which catalysts are particularly effective in the oxidation of n-butane, n- butenes, 1,3-butadiene or a mixture thereof with molecular oxygen or an oxygen-containing gas in the vapor phase to produce excellent yields of maleic anhydride with very good selectivity. At least one vanadium compound, a substantial portion of which is in the pentavalent state, and at least one phosphorus-containing compound is added to an organic liquid medium capable of reducing at least a portion of the vanadium to a +4 valence state, to form a reaction mixture. Partial reduction of the vanadium is effected in the presence of the phosphorus-containing compound and a highly ordered and uniform mixed vanadium phosphorus oxide-containing catalyst precursor is formed.

370280

Affiliated with

Also associated with

Rating

Mixed vanadium phosphorus oxide catalysts and preparation... does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1132558