Method for the separation of acids from chemical reaction mixtures by means of ionic fluids

US7767852B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Martin Volland · Heidelberg, DE
• Verena Seitz · Ludwigshafen, DE
• Matthias Maase · Speyer, DE
• Miguel Flores · Mannheim, DE
• Rainer Papp · Speyer, DE
• Klemens Massonne · Bad Dürkheim, DE
• Veit Stegmann · Mannheim, DE
• Klaus Halbritter · Heidelberg, DE
• Ralf Noe · Mannheim, DE
• Michael Bartsch · Neustadt, DE
• Wolfgang Siegel · Schifferstadt, DE
• Michael Becker · Ludwigshafen, DE
• Oliver Huttenloch · Ispringen, DE

Key dates

• Filing date: Jan 21, 2003
• Grant date: Aug 3, 2010
• Expiry date: Apr 23, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2601/16
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Process for preparing aminodihalophosphines, diaminohalophosphines, triaminophosphines, phosphorous ester diamides, aminophosphines, diaminophosphines, phosphorous ester amide halides and aminophosphine halides with elimination of an acid in the presence of an auxiliary base, wherein the auxiliary base