Abstract:
Preparation of allyl esters of carboxylic acids in the gaseous phase by reacting propylene, oxygen and carboxylic acids at elevated temperatures in the presence of a catalyst consisting of an inert carrier and a salt of a noble metal of the 8th group of the periodic system and 0.01 to 20 per cent by weight of bismuth.
Abstract:
VINYL ACETATE IS PREPARED FROM ETHYLENE, OXYGEN AND ACETIC ACID IN THE GASEOUS STATE IN THE PRESENCE OF PALLADIUM COMPOUNDS AND ACETATES OF METALS OF THE MAIN GROUP I AND/OR THE GROUP 2 OF THE PERIODIC TABLE BY ADDITIONALLY FEEDING TO THE REACTION ZONE SMALL AMOUNTS OF THE CATALYTICALLY ACTIVE ACETATES.
Abstract:
Sorbic acid is prepared by splitting the ketene/crotonic aldehyde polyester in the presence of a macro-reticulated exchange resin having a pore diameter of at least 200 A on the average and a water content of less than 20 percent by weight. The process can be carried out discontinuously or continuously with a good yield, the sorbic acid obtained having a high quality.
Abstract:
Process for the manufacture of allyl acetate in the gaseous phase from propylene, oxygen and acetic acid in the presence of a catalysts containing palladium, alkali metal acetate and a copper and/or vanadium salt of a 1,3-dicarbonyl compound.
Abstract:
A process for the preparation of propionaldehyde by reacting carboxylic acid allyl esters in the gaseous phase, while using acid catalysts, in the presence of water.
Abstract:
Process for the isomerization of cis-isomeric hexadienoic acids to sorbic acid in the presence of complex compounds of the platinum metals as catalysts.