SAPO-34 molecular sieve and method for preparing the same

US9695057B2 · kind B2 · utility

Assignee

• DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES · CN

Inventors

• Dong Fan · Dalian, CN
• Peng Tian · 东风镇, CN
• Zhongmin Liu · 东风镇, CN
• Xiong Su · 东风镇, CN
• Ying Zhang · Woodbury, US
• Yue Yang · Suzhou, CN

Key dates

• Filing date: Sep 26, 2012
• Grant date: Jul 4, 2017
• Expiry date: Sep 26, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2231/763
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention concerns a SAPO-34 molecular sieve and method for preparing the same, whose chemical composition in the anhydrous state is expressed as: mDIPA.(SixAlyPz)O2, wherein, DIPA is diisopropylamine existing in cages and pore channels of said molecular sieve, wherein m is the molar number of diisopropylamine per one mole of (SixAlyPz)O2, and m is from 0.03 to 0.25; x, y, z respectively represents the molar number of Si, Al, P, and x is from 0.01 to 0.30, and y is from 0.40 to 0.60, and z is from 0.25 to 0.49, and x+y+z=1. The SAPO-34 molecular sieve can be used as catalysts for acid-catalyzed reaction or oxygenate to olefins reaction.