Method for selective production of bromine

US4105753A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Lothar Schulz · Eppstein, DE
• Hans-Jurgen Arpe

Key dates

• Filing date: Jan 28, 1975
• Grant date: Aug 8, 1978
• Expiry date: Jan 28, 1995

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B7/096
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for the preparation of bromine and hydrogen bromide, which comprises reacting ammonium bromide with an oxygen containing gas at temperatures of from 200.degree. to 800.degree. C. in the presence of oxidation catalysts is disclosed. Catalysts based on platinum group metals favor formation of HBr. Most other metal catalysts cause chiefly formation of bromine.