文献类型：期刊文献

英文题名：Molecular transport and SAPO-11 crystal growth in an i-Pr2NH-AlPO4-H3PO4-SiO2-H2O system

作者：Tian, HP; Zhu, ZL; Bekheet, MEA; Yuan, JB; Li, CL

机构：[1]E CHINA UNIV SCI & TECHNOL, RES CTR PETR PROC, SHANGHAI 200237, PEOPLES R CHINA

年份：1997

卷号：194

期号：1

起止页码：89

外文期刊名：JOURNAL OF COLLOID AND INTERFACE SCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:A1997YG92600011)】；

语种：英文

外文关键词：SAPO-11; crystal growth; molecular transport; i-Pr2NH template

摘要：The crystal growth of SAPO-11 molecular sieve synthesized with i-Pr2NH as a novel template from mixtures of Si, Al, and P sources were studied by XRD, MAS-NMR, IR, and AAS techniques. It was found that the crystallization was improved partially by the desorption of i-Pr2NH from the crystallite products at high temperatures. The growth on (010) face was enhanced by stepwise adding external silica sol to the reaction mixtures during the synthesis process. The molecular transport and mechanism of the crystallization were discussed. (C) 1997 Academic Press.