Method for the separation of oil-in-water emulsions

US4686066A · kind A · utility

Inventors

• Manfred Hofinger · Altötting, DE
• Martin Hille · Liederbach, DE
• Roland Bohm · Altenberge, DE

Key dates

• Filing date: Dec 18, 1985
• Grant date: Aug 11, 1987
• Expiry date: Dec 18, 2005

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D17/047
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The separation of oil-in-water emulsions can be considerably improved if an effective amount of a homopolymer of diallyldimethylammonium chloride, which contains in addition 5 to 10% by weight of residual monomer, is added as a demulsifying substance.