Concentrating aqueous solutions of organic compounds which contain salts, with simultaneous reduction of the salt content

US4802965A · kind A · utility

Assignee

• BASF SE

Inventors

• Hermann Puetter · Neustadt, DE
• Eckhard Roske · Ludwigshafen, DE

Key dates

• Filing date: Dec 16, 1985
• Grant date: Feb 7, 1989
• Expiry date: Dec 16, 2005

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02A20/124
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Aqueous solutions of organic compounds which contain salts are concentrated by electrodialysis with simultaneous reduction of the salt content of these solutions, the concentrate used being an aqueous salt solution which is not less than 1 molar.