C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/572.1
C07C 47/06 (2006.01) B01J 31/00 (2006.01) C07C 45/49 (2006.01)
Patent
CA 1094105
Case 4571 ABSTRACT OF THE DISCLOSURE Acetaldehyde is produced by reacting methanol with hydrogen and carbon monoxide at elevated temperature and pressure in the presence of a catalyst comprising cobalt, an iodide or a bromide and one of the elements arsenic, antimony or bismuth, either in the form of the free element or a compound thereof, and in the additional presence of one or more of the following additives: (i) an inert liquid such as chlorobenzene, decanoic acid, a polydimethylsiloxane fluid or a methyl phenyl silicone fluid, (ii) an acid and/or an acid derivative such as acetic acid, acetic anhydride, propionic acid, phenylacetic acid, benzoic acid, methyl acetate or butyl acetate. (iii) an oxygen-containing organic compound such as 1,4- dioxane, tetrahydrofuran, di-n-propylether, diphenylether, acetone, acetaldehyde, n-propanol or n-butanol. (iv) a non-polar solvent such as an alkane, benzene or an alkyl-substituted benzene. The presence of the additive suppresses by-product formation and thereby improves the yield and selectivity to acetaldehyde.
315128
British Petroleum Company Limited (the)
Fetherstonhaugh & Co.
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