Title:
PROCESS FOR PRODUCTION OF PROPYLENE OXIDE
Document Type and Number:
WIPO Patent Application WO/2003/057682
Kind Code:
A1
Abstract:
A process for production of propylene oxide which comprises the oxidation step of oxidizing cumene into cumene hydroperoxide, the epoxidation step of reacting a cumene solution containing cumeme hydroperoxide with an excess of propylene in a liquid phase in the presence of a solid catalyst to obtain propylene oxide and cumyl alcohol, and the hydrogenolysis step of converting the cumyl alcohol obtained in the epoxidation step into cumene through hydrogenolysis in the presence of a solid catalyst and recycling the cumene to the oxidation step as the starting material, wherein the concentration of organic acids in the cumyl alcohol fed to the hydrogenolysis step is adjusted to 200 ppm by weight or below.
Inventors:
TSUJI JUNPEI (JP)
Application Number:
PCT/JP2002/013566
Publication Date:
July 17, 2003
Filing Date:
December 26, 2002
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
TSUJI JUNPEI (JP)
TSUJI JUNPEI (JP)
International Classes:
C07B61/00; C07C1/22; C07C15/085; C07C29/132; C07C33/20; C07C407/00; C07C409/10; C07D301/19; C07D303/04; (IPC1-7): C07D301/19; C07D303/04
Foreign References:
| JP2001031662A | 2001-02-06 | |||
| JP2001270873A | 2001-10-02 | |||
| JP2001270878A | 2001-10-02 |
Other References:
See also references of EP 1471061A4
Attorney, Agent or Firm:
Kuboyama, Takashi c/o Sumitomo Chemical Intellectual Property Service (Limited 5-33, Kitahama 4-chome, Chuo-k, Osaka-shi Osaka, JP)
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