Process for the production of acetaldehyde by the

专利名称：Process for the production of acetaldehyde

by the reaction of methanol with synthesisgas

发明人：Brian R. Gane申请号：US05/957701申请日：19781106公开号：US04225517A公开日：19800930

摘要：Acetaldehyde is produced by reacting methanol with hydrogen and carbonmonoxide at elevated temperature and pressure in the presence of a catalyst cobalt, aniodide or a bromide and one of the elements arsenic, antimony or bismuth, in the form ofa compound thereof, and in the additional presence of one or more of the followingadditives:< P>

(i) an inert liquid such as chlorobenzene, decanoic acid, a polydimethylsiloxane fluid ora methyl phenyl silicone fluid,

< P>(ii) an acid and/or an acid derivative such as acetic acid, acetic anhydride, propionicacid, phenylacetic acid, benzoic acid, methyl acetate or butyl acetate.

(iii) and 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 improvesthe yield and selectivity to acetaldehyde.

申请人：THE BRITISH PETROLEUM COMPANY LIMITED

代理机构：Brooks, Haidt, Haffner & Delahunty

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