Process for preparing zeolites using pyrrolidinium cations
申请人:——
公开号:US20020081262A1
公开(公告)日:2002-06-27
The present invention relates to a process for preparing zeolites using pyrrolidinium cations as structure directing agents.
本发明涉及一种使用吡咯烷基阳离子作为结构定向剂制备沸石的方法。
Zeolite SSZ-52x
申请人:Chevron U.S.A. Inc.
公开号:US10150676B2
公开(公告)日:2018-12-11
The present invention relates to new crystalline zeolite SSZ-52x prepared using a quaternary ammonium cation templating agent, for example, having the structure:
wherein X− is an anion which is not detrimental to the formation of the SSZ-52x. SSZ-52x is useful as a catalyst and shows improved durability, particularly with regard to NOx conversion.