| 申请日期 | 2025-08-16 | 申请号 | WOUS09000094 |
| 公开（公告）号 | WO2009089020A1 | 公开（公告）日 | 2009-07-16 |
| 公开国别 | WO | 申请人省市代码 | 全国 |
| 申请人 | W R GRACE CO CONN; DEITZ Philip S; SUAREZ Wilson; KUMAR Ranjit; WORMSBECHER Richard Franklin | ||
| 简介 | This is invention is a composition comprising discrete particles that comprise rare earth carbonate, preferably lanthanum carbonate, dispersed in a matrix. The composition may be combined with zeolite-containing cracking catalysts to enhance catalytic activity and/or selectivity in the presence of metals (Ni and V). | ||
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