发明名称 |
Process for preparing silicoaluminophosphate (SAPO) molecular sieves, catalysts containing said sieves and catalytic dehydration processes using said catalysts |
摘要 |
A new process for producing a SAPO molecular sieve is disclosed wherein a mixture of a P source with an Al source is subjected to a digestion step under stirring before adding a Si source and a template. The slurry resulting after addition of all chemicals is subjected to a pH adjustment followed by the usual hydrothermal treatment at higher temperature in an autoclave. In this way, very pure highly crystalline SAPO molecular sieves such as SAPO-34 are obtained with a very high yield. In addition, the SAPOs produced this way have an exceptional activity in the dehydration reactions and can be employed as a active component of catalysts for the production of valuable dehydration products from methanol such as, but not limited to, olefins and dimethylether (DME). |
申请公布号 |
US8603431(B2) |
申请公布日期 |
2013.12.10 |
申请号 |
US20080666407 |
申请日期 |
2008.06.30 |
申请人 |
FERRINI CRISTINA;HEREIN DANIEL;LINKE DAVID;RODEMERCK UWE;KONDRATENKO EVGENY;CASALE CHEMICALS S.A. |
发明人 |
FERRINI CRISTINA;HEREIN DANIEL;LINKE DAVID;RODEMERCK UWE;KONDRATENKO EVGENY |
分类号 |
B01J29/90;B01J29/06 |
主分类号 |
B01J29/90 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|