Direct esterification of o-phosphoric acid

US4921990A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Guenter Uphues · Monheim, DE
• Uwe Ploog · Haan, DE

Key dates

• Filing date: Aug 8, 1989
• Grant date: May 1, 1990
• Expiry date: Aug 8, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/09
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the direct esterification of o-phosphoric acid with aliphatic fatty alcohols and/or adducts thereof with alkylene oxides and alkylphenol alkoxylates, in the presence of a substoichiometric quantity of a basic, inorganic or organic compound and a water-entraining agent.