Bayer Aktiengesellschaft

Helmut H&auml;rle

Helmut Waldmann

Fritz Gestermann

Hans-Ulrich Dummersdorf

Franz-Rudolf Minz

J&uuml;rgen Schneider

In the process for working up the reaction gas consisting of chlorine, hydrogen chloride, oxygen and water vapour produced in a chlorine reactor, the reaction gas leaving the reactor is first cooled until the water of reaction and hydrogen chloride condense in the form of concentrated hydrochloric acid. The concentrated hydrochloric acid is then separated from the reaction gas in a phase separation column and discharged. The remaining reaction gas, from which the substantial proportion of the water and a proportion of the hydrogen chloride has been removed, is then post-dried in a drying tower The post-dried reaction gas consisting of chlorine, oxygen and hydrogen chloride is then compressed to 1 to 30 bar by a compressor In the subsequent stage, the compressed reaction gas is passed through a cooled chlorine recuperator wherein the chlorine is very largely liquefied. Finally, the components of the reaction gas which could not be condensed in the chlorine recuperator are at least partially returned to the reactor

Growing community of inventors

Leverkusen, Germany

Helmut Härle

Growing community of inventors

Leverkusen, Germany

Helmut H&auml;rle

Helmut Härle