Title:
触媒の選択性を改善する方法及びオレフィンのエポキシ化方法
Document Type and Number:
Japanese Patent JP4537848
Kind Code:
B2
Abstract:
A method for improving the selectivity of a supported highly selective epoxidation catalyst comprising silver in a quantity of at most 0.17 g per m2 surface area of the support, which method comprises contacting the catalyst, or a precursor of the catalyst comprising the silver in cationic form, with a feed comprising oxygen at a catalyst temperature above 250° C. for a duration of up to 150 hours, and subsequently decreasing the catalyst temperature to a value of at most 250° C.; and a process for the epoxidation of an olefin, which process comprises contacting a supported highly selective epoxidation catalyst comprising silver in a quantity of at most 0.17 g per m2 surface area of the support, or a precursor of the catalyst comprising the silver in cationic form, with a feed comprising oxygen at a catalyst temperature above 250° C. for a duration of up to 150 hours, and subsequently decreasing the catalyst temperature to a value of at most 250° C. and contacting the catalyst with the feed comprising the olefin and oxygen.
Inventors:
Locke Meyer, Jiyoung Robert
Reinalda, Donald
Yates, Randall Clayton
Reinalda, Donald
Yates, Randall Clayton
Application Number:
JP2004517758A
Publication Date:
September 08, 2010
Filing Date:
June 24, 2003
Export Citation:
Assignee:
Ciel International Research Mart Shats Pay BV
International Classes:
B01J23/68; B01J23/50; B01J37/08; B01J35/10; B01J37/02; B01J37/14; C07C29/10; C07C31/20; C07C213/04; C07C215/08; C07D301/03; C07D301/10; C07D303/04; C07B61/00
Domestic Patent References:
| JP2002504911A | ||||
| JP2104580A | ||||
| JP2002511453A | ||||
| JP63126552A | ||||
| JP2006504642A | ||||
| JP10503709A | ||||
| JP11262664A | ||||
| JP50074589A |
Attorney, Agent or Firm:
Yoshio Kawaguchi
Makoto Ono
Katsuma Osaki
Mitsuaki Tsubokura
Makoto Ono
Katsuma Osaki
Mitsuaki Tsubokura