公开(公告)号：US06177374B1

公开(公告)日：2001-01-23

申请号：US08784150

申请日：1997-01-17

申请人： Ajit Ramchandra Pradhan ,  Nagabhatla Viswanadham ,  Surendranath Suresh ,  Nirmalya Ray ,  Uma Shanker ,  Turaga Sundara Rama Prasada Rao

发明人： Ajit Ramchandra Pradhan ,  Nagabhatla Viswanadham ,  Surendranath Suresh ,  Nirmalya Ray ,  Uma Shanker ,  Turaga Sundara Rama Prasada Rao

IPC分类号： B01J2906

CPC分类号： B01J29/061 ,  Y10S423/22

摘要： This invention relates to a novel porous crystalline synthetic catalyst having the general formula expressed in the form of oxides: M 2/n o. x Al2O3 Y SiO2, Z ZnO wherein, M represents a proton and/or a metallic cation, n is the valence of the said cation, Y/x is a number ranging from 5 to 1000 (SiO2/Al2OS molar ratio), and a process for preparing such catalyst by (a) forming a reaction medium comprising water, a silicon source, an aluminium source, a zinc source and a source of structure directing agent capable of providing organic cations, (b) heating the said reaction mixture to a temperature ranging from 80° C. to 230° C. at autogeneous phase, and (c) heating the solid content obtained at the end of step (b) to a temperature greater than 400° C., so as to eliminate the organic species present due to the use of the structuring agent.

摘要翻译： 本发明涉及具有以氧化物形式表示的通式M 2 / n o的新型多孔结晶合成催化剂。 x Al 2 O 3 Y SiO 2，Z ZnO其中，M表示质子和/或金属阳离子，n为所述阳离子的化合价，Y / x为5〜1000的数（SiO 2 / Al 2 OS摩尔比） （a）形成包含水，硅源，铝源，锌源和能够提供有机阳离子的结构导向剂源的反应介质的制备方法，（b）将所述反应混合物加热至 温度范围为80〜230℃，（c）将步骤（b）结束时得到的固体成分加热至400℃以上，以除去有机物质 由于使用结构剂而存在。