Surface-active sulfophosphoric-acid-(partial)-alkyl-esters

US5041597A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Bernd Fabry · Korschenbroich, DE
• Hans-Herbert Friese · Monheim, DE
• Friedrich Pieper · Langenfeld, DE
• Guenter Uphues · Monheim, DE

Key dates

• Filing date: May 25, 1990
• Grant date: Aug 20, 1991
• Expiry date: May 25, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/091
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention concerns a process for the manufacture of surface-active sulfophosphoric-acid-(partial)-alkyl-esters and their alkali-, alkaline earth-, ammonium- and amine salts by the sulfonation of phosphoric acid esters and subsequent hydrolysis of the sultone intermediate stages formed.