Bayer Aktiengesellschaft

Siegfried Zingel

Rainer Neumann

Wilfried Burow

Clemens Casper

Olaf Schmidt-Park

Karl-August Lipper

Walter Bockmann

Friedrich Bruhne

Martin Anstock

Karl Morgenstern

Dieter Zeitz

A reactor for corrosive and abrasive reaction mixtures having an upper setion and a conically tapered lower reaction section, with a screw mixer consisting of a jacketed band surrounding a conveyor screw, suspended fron the top of the reactor, and an inlet for solid reactants which leads directly into the vertical conveying device.

Reactor for corrosive reaction mixtures

Benzoyl chloride is prepared by a process in which the high-boiling residue obtained in the catalytic oxidation of toluene with oxygen or oxygen-containing gases in the liquid phase is largely freed of heavy metal salts which are present, and is then chlorinated at elevated temperatures, optionally under the action of light, and the benzoyl chloride is then separated off.

Process for the preparation of benzoyl chloride

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Krefeld, Germany

Siegfried Zingel