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Phenolchemie Gmbh & Co. Kg

Christian Michalik

Otto Gerlich

Michael Kleine-Boymann

Manfred Weber

Reinhard Sigg

Andrei K Griaznov

Irina I Vasilieva

Werner Pompetzki

Vladimir M Zakoshansky

Werner Kleinloh

Heinrich Van Barnefeld

Youry Nikolaevitch Youriev

J&uuml;rgen Volke

Phenol and acetone are prepared by a process comprising homogeneously cleaving cumene hydroperoxide in the presence of acid catalyst in a cleavage apparatus comprising at least one reactor having plug flow characteristics thereby producing a cleavage product; recycling some of the cleavage product stream by combining the recycled cleavage product stream with the cumene hydroperoxide-containing feed stream fed to said cleavage apparatus under the condition that the mass flow ratio of the recycled partial cleavage product stream to the cumene hydroperoxide-containing feed stream sent to the cleavage reactor is less than 10.

Process for preparing phenol and acetone by acid-catalyzed cleavage of cumene hydroperoxide

The present invention relates to an improved method for producing phenol and acetone by oxidizing cumene into technical cumol hydroperoxide (CHP) through catalytic cleavage of the CHP. According to the invention, the oxidation products are concentrated to up to a cumene content ranging from 21 to 30 wt % in the technical cumol hydroperoxide, said mixture being used for the catalytic cleavage.

Process for the production of phenol and acetone from cumene

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Essen, Germany

Christian Michalik