PROCESS FOR PRODUCING &agr -METHYLSTYRENE

Title:

PROCESS FOR PRODUCING &agr -METHYLSTYRENE

Document Type and Number:

WIPO Patent Application WO/2005/030684

Kind Code:

A1

Abstract:

A process for producing &agr -methylstyrene which comprises dehydrating cumyl alcohol in the presence of activated alumina, characterized in that the concentration of propylene oxide in a raw material containing cumyl alcohol is 0 to 10,000 wt.ppm.

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Inventors:

TSUJI JUNPEI (JP)

Application Number:

PCT/JP2004/013588

Publication Date:

April 07, 2005

Filing Date:

September 10, 2004

Export Citation:

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Assignee:

SUMITOMO CHEMICAL CO (JP)
TSUJI JUNPEI (JP)

International Classes:

C07D321/00; C07B61/00; C07C1/24; C07C5/05; C07C15/085; C07C15/44; C07C29/132; C07C33/20; C07C407/00; C07C409/10; C07D301/19; C07D303/04; (IPC1-7): C07C15/44; C07C1/24

Foreign References:

JP2004250430A	2004-09-09
JPS5012403B1	1975-05-12

Other References:

KAGAKU DAIJITEN HENSHU IINKAI: "Kagaku daijiten 9", 25 August 1962, KYORITSU SHUPPAN CO.,LTD., article "Alpha-methylstyrene", pages: 166, XP008107492
KAGAKU DAIJITEN HENSHU IINKAI: "Kagaku daijiten 5", 15 July 1962, KYORITSU SHUPPAN CO.,LTD., article "Catalyst for dehydratation", pages: 652, XP008107493
See also references of EP 1674439A4

Attorney, Agent or Firm:

Enomoto, Masayuki c/o Sumitomo Chemical Intellectual Property Service (Limited 5-33, Kitahama 4-chome, Chuo-k, Osaka-shi Osaka 50, JP)

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