Invention Grant
- Patent Title: Silver catalysts with improved size and distribution density of silver particles
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Application No.: US15054447Application Date: 2016-02-26
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Publication No.: US10040773B2Publication Date: 2018-08-07
- Inventor: Wojciech L. Suchanek , Nabil Rizkalla , Andrzej Rokicki
- Applicant: Scientific Design Company, Inc.
- Applicant Address: US NJ Little Ferry
- Assignee: Scientific Design Company, Inc.
- Current Assignee: Scientific Design Company, Inc.
- Current Assignee Address: US NJ Little Ferry
- Agency: Scully Scott Murphy and Presser
- Main IPC: B01J23/50
- IPC: B01J23/50 ; C07D301/10 ; B01J23/68 ; B01J35/10 ; B01J21/04 ; B01J35/00 ; B01J35/02
Abstract:
A silver-based ethylene epoxidation catalyst is provided that exhibits improved performance, i.e., selectivity and activity decline. The catalyst that exhibits the improved performance includes greater than about 20% by weight of silver disposed on an alpha-alumina carrier, and a promoting amount of one or more promoters disposed on the alpha-alumina carrier. The silver is present on the alpha-alumina carrier as silver particles having a diameter of greater than about 150 nm and a distribution density of about 20 particles per 1 square micron or less.
Public/Granted literature
- US20160251326A1 SILVER CATALYSTS WITH IMPROVED SIZE AND DISTRIBUTION DENSITY OF SILVER PARTICLES Public/Granted day:2016-09-01
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