Production of methacrolein

Details Production of methacrolein Production of methacrolein

C - Chemistry, Metallurgy

07

C

260/568.6

C07C 47/22 (2006.01) B01J 23/28 (2006.01) B01J 23/88 (2006.01) B01J 27/192 (2006.01) C07C 45/35 (2006.01) C07C 45/37 (2006.01)

Patent

CA 1126294

IMPROVEMENTS IN THE PRODUCTION OF METHACROLEIN Abstract of the Disclosure The specification relates to a process for the production of methacrolein by vapor phase catalytic oxidation of isobutylene and/or ti-butyl alcohol, while suppressing the amount of acetone by-produced therewith. The process comprises contacting a gaseous mixture comprising isobutylene or t-butyl alcohol, molecular oxygen and steam with a metal oxide catalyst composition comprising molybdenum and bismuth as the essential metal components, the amount of steam in the gaseous mixture being maintained at no more than 4 mol per mol of isobutylene or no more than 3 mol per mol of t-butyl alcohol. The methacrolein thus produced can be used without separation or purification in the production of methacrylic acid by vapor phase catalytic oxidation without reducing the activity of the catalyst.

354843

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