Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1982-11-18
1985-07-09
Garner, Vivian
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
2604055, 260413, 502162, 502164, 502167, 502200, 502209, 502211, 502212, 562532, 562535, 568479, C07C 51235, C07C 5125, C07C 5705, C07C 57055
Patent
active
045283982
ABSTRACT:
The present invention relates to a method for the preparation of phosphomolybdic acid based catalysts utilized in the oxidation of aldehydes to unsaturated carboxylic acids by forming a solution of hydrated phosphomolybdic acid in a substantially anhydrous alkanol, adding a base to the solution, evaporating the solution to yield a catalyst powder and thereafter drying and calcining the powder to form the active catalyst. A second method for preparation is also provided and includes the steps of forming a solution of hydrated phosphomolybdic acid in a substantially anhydrous alkanol, evaporating the solution to form a concentrate, impregnating a catalyst support material with the concentrate, contacting the impregnated support with ammonia gas in an amount sufficient to form an insoluble precipitate of ammonium alkyl phosphomolybdic acid within the pore structure of said support material and thereafter drying and calcining said impregnated support material so as to form a coated catalyst.
REFERENCES:
patent: 3959182 (1976-05-01), Izawa et al.
patent: 3997600 (1976-12-01), Ferlazzo et al.
Callahan James L.
Miller Arthur F.
Shaw Wilfrid G.
Curatolo Joseph G.
Evans Larry W.
Garner Vivian
The Standard Oil Company (Ohio)
LandOfFree
Method for the preparation of unsaturated carboxylic acid with h does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for the preparation of unsaturated carboxylic acid with h, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the preparation of unsaturated carboxylic acid with h will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-910320