Production of methyldichlorophosphane

US4104304A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Stefan Schafer · Aachen, DE
• Klaus Gehrmann · Lechenich, DE
• Alexander Ohorodnik · Lechenich, DE
• Karl-Heinz Steil · Hürth, DE
• Wernfried Riechmann
• Friedhelm Bylsma · Lechenich, DE

Key dates

• Filing date: Jul 11, 1977
• Grant date: Aug 1, 1978
• Expiry date: Jul 11, 1997

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/582
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Production of methyldichlorophosphane. The compound is made by reacting methane and phosphorus trichloride in a reaction zone in which a temperature higher than 500.degree. C is maintained. More specifically, hot reaction gas coming from the reaction zone is mechanically freed from solid matter, and the reaction gas freed from solid matter is passed to a quenching zone in which it is quenched with liquefied reaction mixture having 0.3 to 5 weight % of an organic barium compound or a non-ionic surfactant dissolved therein.