| 发明名称 | Catalyst and process using the catalyst | ||
| 摘要 | A new chromium-containing fluorination catalyst is described. The catalyst comprises an amount of zinc that promotes activity. The zinc is contained in aggregates which have a size across their largest dimension of up to 1 micron. The aggregates are distributed throughout at least the surface region of the catalyst and greater than 40 weight % of the aggregates contain a concentration of zinc that is within ±1 weight % of the modal concentration of zinc in those aggregates. | ||
| 申请公布号 | US9556079(B2) | 申请公布日期 | 2017.01.31 |
| 申请号 | US200912737956 | 申请日期 | 2009.09.04 |
| 申请人 | MEXICHEM AMANCO HOLDING S.A. DE C.V. | 发明人 | Sharratt Andrew P |
| 分类号 | B01J21/00;B01J23/00;B01J25/00;B01J29/00;B01J23/02;C07B39/00;B01J23/26;B01J35/00;B01J37/00;B01J37/03;C07C17/20;C07C17/21;B01J35/10;B01J37/26 | 主分类号 | B01J21/00 |
| 代理机构 | Ryan Kromholz & Manion, S.C. | 代理人 | Ryan Kromholz & Manion, S.C. |
| 主权项 | 1. A chromium-containing fluorination catalyst which comprises from 0.5 to 25% by weight of zinc based on the total weight of the catalyst, said zinc being contained in aggregates which have a size across their largest dimension of up to 1 micron and which are distributed throughout at least the surface region of the catalyst and wherein greater than 40 weight % of the zinc-containing aggregates contain a concentration of zinc that is within ±1 weight % of the modal concentration of zinc in the zinc-containing aggregates and, wherein the catalyst is amorphous or partially crystalline containing from 0.4 to 5% by weight of one or more crystalline compounds of chromium and/or one or more crystalline compounds of zinc. | ||
| 地址 | Tlanlnepantla MX | ||