公开(公告)号：US20190022628A1

公开(公告)日：2019-01-24

申请号：US16043296

申请日：2018-07-24

Applicant: Scientific Design Company, Inc.

Inventor： Serguei PAK ,  Andrew MCFARLAND

IPC: B01J23/68 ,  B01J21/04 ,  B01J35/00 ,  B01J37/02 ,  C07D301/03

Abstract: The present disclosure is directed to the preparation of silver-based HSCs. During preparation of the catalyst a selected carrier is co-impregnated with a solution containing a catalytically effective amount of silver and a promoting amount of rhenium and other promoters. After co-impregnation, the carrier is subjected to a separate heat treatment prior to calcination. Such heat treatment is conducted for between about 1 minute and about 120 minutes at temperatures between about 40° C. and about 300° C. Catalysts prepared by the present methodology evidence improved selectivity, activity and/or stability resulting in an increase in the useful life of the catalyst.