Preparation of maleic anhydride

Details Preparation of maleic anhydride Preparation of maleic anhydride

1980-10-22

1981-10-06

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252437, C07D30760

Patent

active

042934982

ABSTRACT:
The present invention provides a process for the preparation of oxidation catalysts containing mixed oxides of vanadium and phosphorus, 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 high yields of maleic anhydride with good selectivity. A vanadium compound is introduced into an olefinic halogenated organic liquid medium, a phosphorus-containing compound is added to the medium, reduction of at least a portion of the vanadium to a +4 valence state is effected either prior to or subsequent to the addition of the phosphorus-containing compound, and the resulting vanadium-phosphorus oxide catalyst precursor is recovered, dried and calcined.

REFERENCES:
patent: 3156707 (1964-11-01), Kerr
patent: 3864280 (1975-02-01), Schneider
patent: 3915892 (1975-10-01), Harrison
patent: 3931046 (1976-01-01), Weinstein et al.
patent: 3932305 (1976-01-01), Jurewicz et al.
patent: 3987063 (1976-10-01), Lemal et al.
patent: 4002650 (1977-01-01), Bremer et al.
patent: 4016105 (1977-04-01), Kerr
patent: 4017521 (1977-04-01), Schneider
patent: 4035417 (1977-07-01), Izawa et al.
patent: 4043943 (1977-08-01), Schneider
patent: 4064070 (1977-12-01), Harrison
patent: 4147661 (1979-04-01), Higgins et al.
patent: 4149992 (1979-04-01), Mount et al.
patent: 4179404 (1979-12-01), Barone
patent: 4187235 (1980-02-01), Katsumoto et al.
patent: 4244879 (1981-01-01), Bremer et al.
Littler et al. J. of Chem. Soc. (1959) pp. 1299-1305.

Affiliated with

Also associated with

Rating

Preparation of maleic anhydride does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of maleic anhydride, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of maleic anhydride will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1206202