Process for preparing alkyl esters of aliphatic carboxylic...

C - Chemistry – Metallurgy – 07 – C

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260/495.1

C07C 69/24 (2006.01) B01J 31/02 (2006.01) B01J 31/20 (2006.01) C07C 67/38 (2006.01) C11C 3/02 (2006.01)

Patent

CA 1167058

Abstract of the Disclosure The invention provides a process for preparing alkyl esters of saturated aliphatic carboxylic acids by reacting an olefin with carbon monoxide and an alkanol in the presence of a cobalt compound as catalyst and pyridine and/or a non-ortho-substituted alkyl-pyridine, at elevated temperature and pressure. Unreacted charge materials are returned to the reaction mixture. To reduce or eliminate build up of high-boiling impur- ities formed by side reactions, charge materials to be returned to the reaction are treated to separate as much as possible of any water pre- sent in the charge material.

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