Extraction of amino acids from aqueous mixtures and quaternary ammonium salt intermediates produced therein

US4661606A · kind A · utility

Assignee

• Henkel Limited

Inventors

• Francis W. Tuominen · Minneapolis, US
• Ronald R. Swanson · Taylors Falls, US
• Phillip L. Mattison · Santa Rosa, US
• Kenneth Mackay · Meylan, FR
• Bradley W. Glorvigen · Windom, US

Key dates

• Filing date: Jun 6, 1984
• Grant date: Apr 28, 1987
• Expiry date: Jun 6, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D209/20
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Amino acids can be purified and/or concentrated by extracting aqueous mixtures such as fermentation broths by contacting an aqueous mixture containing amino acids with an organic solution containing a water insoluble extractant.