Process for producing carboxylic acid alkylester after products extensively free from nitrogenated compounds

US4421692A · kind A · utility

Assignee

• Chemische Werke Huels Aktiengesellschaft · US

Inventors

• Peter Hofmann · Goldkronach, DE
• Wolfgang Muller · Königsfeld, DE

Key dates

• Filing date: Nov 5, 1981
• Grant date: Dec 20, 1983
• Expiry date: Nov 5, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C29/149
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A method for preparing carboxylic acid alkylester after products free of nitrogen containing compounds. These after products, free of nitrogen containing compounds, are prepared by: (1) reacting olefins with carbon monoxide and alkanols in the presence of a catalyst system consisting of a cobalt compound and pyridine, non-orthosubstituted alkylpyridines or a mixture of these pyridines at elevated pressures and elevated temperatures to produce carboxylic acid alkylesters containing nitrogenated compounds resulting from the pyridines; (2) hydrogenating the carboxylic acid alkylesters to produce after products which include alcohols; and (3) treating the after products with acid ion exchangers to remove the nitrogenated compounds.