化工进展

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固态离子交换制备Cu(Ⅰ)分子筛研究进展

宁慧青1,卢兴鲁2,刘 泉2,任 军2,李 忠2   

  1. 1太原科创生物技术公共服务平台公司,山西 太原 030006;2太原理工大学,山西省煤科学与技术重点实验室——省部共建国家重点实验室培养基地,山西 太原 030024
  • 出版日期:2012-09-05 发布日期:2012-09-05

Process for the preparation of copper containing zeolites by solid state ion-exchange method

NING Huiqing1,LU Xinglu2,LIU Quan2,REN Jun2,LI Zhong2   

  1. 1 Taiyuan Kechuang Biotechnology Public Service Company, Taiyuan 030006, Shanxi, China;2Key Laboratory of Coal Science and Technology,Ministry of Education and Shanxi Province,Taiyuan University of Technology,Taiyuan 030024,Shanxi ,China
  • Online:2012-09-05 Published:2012-09-05

摘要: 固态离子交换是将金属离子引入分子筛结构中一种十分简单而有效的方法,它克服了溶液离子交换存在的诸多不利因素。本文介绍了固态离子交换制备Cu(Ⅰ)型分子筛的反应原理、制备条件的影响以及不同结构Cu(Ⅰ)型分子筛的应用。鉴于微波场中离子运动速率显著加快的特点,提出采用微波加热可以显著提高固态离子交换反应速率,对于提高Cu+离子交换度,消除残留CuCl的影响,获得高性能的Cu(Ⅰ)Y催化剂具有重要的应用价值。

关键词: Cu(Ⅰ)分子筛, 固态离子交换, 微波辐射

Abstract: Solid-state ion exchange (SSIE) is a simple and effective method to introduce metal ions into the zeolite framework,which can overcome many adverse factors related to the aqueous ion-exchange method. This work introduces the mechanism of SSIE,the influence of preparation parameters,as well as the application of different types of Cu(Ⅰ) zeolites. The authors propose the preparation of Cu(Ⅰ) zeolites by microwave heating in view of the advantage that the movement of ions is significantly accelerated in the microwave field. The novel preparation method is of great significance in overcoming the difficulty related to the conventional heating method,enhancing ion-exchange degree and removing the influence of residual CuCl,so as to obtain highly efficient Cu(Ⅰ) zeolites.

Key words: copper containing zeolites, solid-state ion exchange, microwave irradiation

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