Process for the production of thiophosgene

US3979451A · kind A · utility

Assignee

• Akzona Incorporated · US

Inventors

• Gerhard Meyer · Erlangen, DE
• Helmut Magerlein · Obernburg, DE
• Hans Rupp

Key dates

• Filing date: May 22, 1974
• Grant date: Sep 7, 1976
• Expiry date: May 22, 1994

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B32/80
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process for the production of thiophosgene by the reduction of trichloromethanesulfenyl chloride with hydrogen sulfide at an elevated temperature and in contact with silica gel, the molar ratio of the hydrogen sulfide to trichloromethanesulfenyl chloride being from 1.5:1 to 4:1.