Title:
PRODUCTION OF PROPYLENE OXIDE
Document Type and Number:
Japanese Patent JP3837751
Kind Code:
B2
Abstract:
PURPOSE: To produce the subject compound in high selectivity without being influenced with a raw material gas composition in oxidizing reaction or preparing conditions of a catalyst according to a new method for directly oxidizing propylene with oxygen and hydrogen in the presence of a titanosilicate catalyst supporting a noble metal at a specific temperature.
CONSTITUTION: Propylene is directly oxidized with oxygen and hydrogen in the presence of a catalyst supporting a group VIII noble metal of the periodic table (preferably Pd or platinum) on a titanosilicate at 0-40°C, preferably 10-35°C. A titanosilicate is preferably a synthetic zeolitic substance of the formula nSiO2. (1-n)TiO2 [(n) is 0.8-0.999] capable of manifesting an X-ray diffraction pattern of a pentasil type structure. The titanosilicate is preferably obtained by hydrolyzing a tetraalkyl orthosilicate and a tetraalkyl orthotitanate with an aqueous solution of a tetraalkylammonium hydroxide and then carrying out the hydrothermal synthesis. The catalyst is preferably prepared by supporting a noble metallic compound on the titanosilicate according to an impregnating method and then conducting the reducing treatment of the noble metallic compound.
Inventors:
Akira Sato
Motohiro Oguri
Shoichi Tokumaru
Takanori Miyake
Motohiro Oguri
Shoichi Tokumaru
Takanori Miyake
Application Number:
JP7145495A
Publication Date:
October 25, 2006
Filing Date:
March 29, 1995
Export Citation:
Assignee:
Tosoh Corporation
International Classes:
C07D301/08; B01J29/89; C07B61/00; C07D303/04; (IPC1-7): C07D301/08; B01J29/89; C07D303/04; //C07B61/00
Domestic Patent References:
| JP4352771A | ||||
| JP56096720A |
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