公开(公告)号：EP1732685A1

公开(公告)日：2006-12-20

申请号：EP05731146.6

申请日：2005-03-31

Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.

Inventor： LU, Jian

IPC: B01J23/50 ,  B01J23/68 ,  B01J37/02 ,  C07D301/10 ,  C07C213/04

CPC classification number: B01J23/50 ,  B01J21/04 ,  B01J23/66 ,  B01J23/68 ,  B01J23/683 ,  B01J23/688 ,  B01J35/1009 ,  B01J35/1038 ,  B01J37/0201 ,  B01J37/0203 ,  B01J37/0213 ,  C07D301/10

Abstract: A process for preparing a catalyst comprising silver on a support, which process comprises - depositing silver on the support, and - depositing on the support a base having a pKb of at most 3.5 when measured in water at 25 °C, in a quantity of at least 50 mmole per kg of the support, simultaneously with or later than depositing silver on the support; the catalyst; and a process for preparing an olefin oxide by reacting an olefin with oxygen in the presence of the catalyst.

公开(公告)号：EP1979092A2

公开(公告)日：2008-10-15

申请号：EP07763582.9

申请日：2007-02-01

Applicant: Shell Internationale Research Maatschappij B.V.

Inventor： LU, Jian

IPC: B01J21/04 ,  B01J23/50 ,  B01J23/656 ,  B01J35/10 ,  B01J37/14

CPC classification number: B01J21/04 ,  B01J23/50 ,  B01J23/688 ,  B01J35/10 ,  B01J35/1009 ,  B01J35/1038 ,  B01J35/1042 ,  B01J35/1066 ,  B01J35/1071 ,  B01J35/1076 ,  B01J37/14 ,  C07D301/10

Abstract: A process for treating a supported epoxidation catalyst comprising silver in a quantity of at most 0.15 g per m2 surface area of the support, which process comprises: - contacting the catalyst, or a precursor of the catalyst comprising silver in cationic form, with a treatment feed comprising oxygen at a catalyst temperature of at least 350°C for a duration of at least 5 minutes; the catalyst; a process for the epoxidation of an olefin; and a process for producing a 1,2-diol, 1,2-diolether, or an alkanolamine.