发明名称 |
Selective dealumination of MOR type zeolites |
摘要 |
Method for the selective dealumination of the aluminum within the 12-membered ring channels of a zeolite of structure type MOR. The method includes the steps of (i) loading a MOR zeolite in the hydrogen or ammonium form with a univalent metal to obtain a metal loaded zeolite; and (ii) treating the metal loaded zeolite with steam at a temperature of at least 400° C. to obtain a metal loaded dealuminated zeolite. |
申请公布号 |
US8956588(B2) |
申请公布日期 |
2015.02.17 |
申请号 |
US200912998348 |
申请日期 |
2009.09.29 |
申请人 |
BP Chemicals Limited |
发明人 |
Armitage Gareth Gerald;Sunley John Glenn |
分类号 |
C01B33/36;C07C67/36;C07C53/08;B01J37/00;B01J29/18;B01J29/22;B01J35/02;B01J37/10;C07C51/09;C07C51/12;C07C67/37 |
主分类号 |
C01B33/36 |
代理机构 |
Nixon & Vanderhye P.C. |
代理人 |
Nixon & Vanderhye P.C. |
主权项 |
1. A method for the selective dealumination of the aluminum within the 12-membered ring channels of a zeolite of structure type MOR, which method comprises the steps:
(i) loading a MOR zeolite in the hydrogen or aluminum form with a univalent metal to obtain a metal loaded zeolite, wherein the MOR zeolite is loaded with the univalent metal to exchange all or substantially all of the Brønsted acid sites in the 8-membered ring channels but not the Brønsted acid sites in the 12-membered ring channels; (ii) treating the metal loaded zeolite with steam at a temperature of at least 400° C. to obtain a metal loaded dealuminated zeolite. |
地址 |
Middlesex GB |