Production of phosphine

US4136155A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Klaus Hestermann · Lechenich, DE
• Gero Heymer · Lechenich, DE

Key dates

• Filing date: May 8, 1978
• Grant date: Jan 23, 1979
• Expiry date: May 8, 1998

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B25/06
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Phosphine (hydrogen phosphide) is made by reacting gaseous yellow phosphorus with steam at temperatures of 280 to 400.degree. C in the presence of ammonia in contact with a carbon catalyst.