Process for the preparation of bromine and hydrogen bromide from ammonium bromide

US4107263A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

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

Key dates

• Filing date: Jun 15, 1977
• Grant date: Aug 15, 1978
• Expiry date: Jun 15, 1997

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B7/093
• 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.