Oxidation of Olefins

... 1,198,930. Acrolein; methacrolein; acrylic acid; methacrylic acid. MONTECATINI EDISON S.p.A. 13 May, 1968 [16 May, 1967], No. 22503/68. Heading C2C. [Also in Division B1] Acrolein and/or acrylic acid, or methacrolein and/or methacrylic acid, is prepared by the vapour phase oxidation of propylene and/or acrolein, or of isobutylene and/or methacrolein, with oxygen in the presence of a catalyst comprising a mono-phase system based on molybdenum trioxide the crystal lattice of which has been altered by inclusion of atoms of a substituted metal Ms in an amount such that the atomic ratio of Ms to Mo is 1 to 9, the metal Ms being manganese, cobalt or nickel. The catalyst, which may be in the form either of a fixed bed or of a fluidized bed, optionally may include a small quantity of a salt or oxide of an alkali metal and/or may be supported on a carrier material, for example silica, carborundum or pumice stone. The oxidation is carried out either at atmospheric pressure or at elevated pressure ...

Katalysator zur Oxydation von Olefinen zu ungesaettigten Aldehyden und Saeuren