| 发明名称 |
SILVER CATALYSTS WITH IMPROVED SIZE AND DISTRIBUTION DENSITY OF SILVER PARTICLES |
| 摘要 |
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. |
| 申请公布号 |
US2016251326(A1) |
申请公布日期 |
2016.09.01 |
| 申请号 |
US201615054447 |
申请日期 |
2016.02.26 |
| 申请人 |
Scientific Design Company, Inc. |
发明人 |
Suchanek Wojciech L.;Rizkalla Nabil;Rokicki Andrzej |
| 分类号 |
C07D301/10;B01J35/02;B01J35/10;B01J23/68 |
主分类号 |
C07D301/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A silver-based ethylene epoxidation catalyst comprising:
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 said alpha-alumina carrier, wherein said silver is present on said alpha-alumina carrier as silver particles, said silver particles having a diameter of greater than about 150 nm and having a distribution density of about 20 particles per 1 square micron or less. |
| 地址 |
Little Ferry NJ US |
