Method for preparing hydrogen chloride for the ethyleneoxichlorination process

US4528174A · kind A · utility

Assignee

• Wacker Chemie AG · DE

Inventors

• Ludwig Schmidhammer · Haiming, DE
• Gerhard Dummer · Altötting, DE
• Rudolf Strasser · Baoshan, TW
• Klaus Haselwarter · Burghausen, DE
• Hermann Klaus · Marktl, DE
• Eduard Pichl · Mehring, DE

Key dates

• Filing date: May 29, 1984
• Grant date: Jul 9, 1985
• Expiry date: May 29, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C17/156
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A method for preparing hydrogen chloride resulting from chlorination reactions for use in the ethyleneoxichlorination process by reacting the chlorine contained in the hydrogen chloride with ethylene in the gaseous phase in the presence of carrier catalysts based on an iron-free transition metal chloride having an activity profile which increases in the flow direction, while maintaining the space-flow rates relatively high and the residence time of the gas in the reactor short. After discharge of the reaction product from the reactor the product is subjected to partial condensation advantageously performed in several steps.