Patent Number: 6,307,112

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

Abstract: 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.

Inventors: Weber; Manfred (Haltern, DE), Gerlich; Otto (Gladbeck, DE), Kleine-Boymann; Michael (Bottrop, DE), Pompetzki; Werner (Dorsten, DE), Sigg; Reinhard (Marl, DE), Michalik; Christian (Essen, DE), Volke; Jurgen (Gladbeck, DE)

Assignee: Phenolchemie GmbH & Co. KG

International Classification: C07C 37/00 (20060101); C07C 37/08 (20060101); C07C 45/53 (20060101); C07C 45/00 (20060101); C07C 037/08 ()

Expiration Date: 10/23/2018