催化学报

催化学报 ›› 2007, Vol. 28 ›› Issue (6): 501-503.

• 研究快讯 • 上一篇    下一篇

过氧化氢和磷酸对以亚磷酸作磷源合成SAPO-41和AlPO-41的影响

陈会慧,晁然,那勃,李牛,项寿鹤,关乃佳   

  1. 南开大学化学学院新催化材料科学研究所, 天津 300071
  • 收稿日期:2007-06-25 出版日期:2007-06-25 发布日期:2011-05-28

Effects of H2O2 and H3PO4 on the Synthesis of SAPO41 and AlPO41 Molecular Sieves Using H3PO3 as the Phosphorus Source

CHEN Huihui, CHAO Ran, NA Bo, LI Niu*, XIANG Shouhe, GUAN Naijia   

  1. Institute of New Catalytic Materials Science, College of Chemistry, Nankai University, Tianjin 300071, China
  • Received:2007-06-25 Online:2007-06-25 Published:2011-05-28

PDF

912

被引次数

6

摘要： 考察了以亚磷酸作为磷源合成SAPO-41和AlPO-41时加入过氧化氢或磷酸对生成SAPO-41和AlPO-41的影响. 结果表明,向反应体系中加入过氧化氢或者使用磷酸部分替代亚磷酸,都能明显缩短SAPO-41和AlPO-41的晶化时间. 此外,使用混合磷源还能够降低模板剂的用量,获得小晶粒晶化产物.

关键词: 分子筛, SAPO-41, AlPO-41, 过氧化氢, 亚磷酸, 磷酸

Abstract: Using H3PO3 as the phosphorus source is a new route to prepare SAPO-41 and AlPO-41 molecular sieves. However, it needs a long crystallization period for the formation of these AFO structure materials. In the present communication, effects of the addition of H2O2 and H3PO4 on the synthesis of SAPO-41 and AlPO-41 have been investigated. The addition of either H2O2 or H3PO4 can promote the crystallization of AlPO-41 and SAPO-41. Besides, SAPO-41 has been obtained with the crystal size smaller than 10 μm at lower di-n-propylamine concentration when the mixture of H3PO3 and H3PO4 is used as the phosphorus source.

Key words: molecular sieve, SAPO-41, AlPO-41, hydrogen peroxide, phosphorous acid, phosphoric acid