METHOD FOR SEPARATING HIGH-BOILING CARBOXYLIC ACID VINYL ESTER/CARBOXYLIC ACID MIXTURES

摘要

The invention relates to a method for separating a mixture containing at least one carboxylic acid vinyl ester of general formula R'-C(O)O-CH=CH2 and at least one carboxylic acid of general formula R'-COOH, wherein R' in either case can be an aliphatic group having 12 to 22 C atoms or a cycloaliphatic group having 12 to 22 C atoms, or an aromatic group having 12 to 22 C atoms, and R' can be identical or different, characterized in that the carboxylic acid is converted to its anhydride R'-C(O)-O-C(O)-R' and the carboxylic acid vinyl ester is subsequently separated.