SAPO-56分子筛的晶化区研究  

Study on Crystallization Area of SAPO-56 Molecular Sieve

作　　者：詹予忠[1] 董贺新[1] 董佳佳[1] 宋孟璐[1] 韩丽[1] 

机构地区：[1]郑州大学化工与能源学院,河南郑州450001

出　　处：《郑州大学学报（工学版）》2016年第3期32-35,共4页Journal of Zhengzhou University（Engineering Science）

基　　金：国家自然科学基金资助项目(U1204215);中国石油天然气股份有限公司项目(12-08-05-05)

摘　　要：以N,N,N’,N’-四甲基-1,6-己二胺(TMHD)为模板剂、拟薄水铝石为铝源、白炭黑为硅源、磷酸为磷源,采用静态水热法合成SAPO-56分子筛.产物晶相和结晶度采用XRD确定,考察原料配比对分子筛合成的影响,获得了合成SAPO-56分子筛的晶化区.结果表明,可合成SAPO-56分子筛的摩尔比范围大致为:0.16<n(SiO_2/M)<0.31,0.35<n(Al_2O_3/M)<0.56,0.26<n(P_2O_5/M)<0.45,其中M=SiO_2+Al_2O_3+P_2O_5;调节水量和模板剂的量还可以扩展SAPO-56分子筛的晶化区.SAPO-56 molecular sieve was synthesized hydrothermally using N, N, N＇ , N＇ ,-tetramehtyl-hexane- 1, 6-diamine （TMHD） as template agent, pseudo-boehmite as aluminum source, white carbon black as sili- con source, and phosphate acid as phosphorus source. The crystal phase and crystallinity of product were i- dentified by XRD. The influence of synthetic conditions on the molecular sieves was studied and the crystalli- zation area of SAPO-56 molecular sieve was obtained. The results showed that the crystallization area of SAPO- 56 was n（0.16 〈 n（SiO2/M） ） 〈0.31,0.35 〈 n（A1203/M） 〈 0.56 and 0.26 〈 n（P2OJM） 〈0.45, where M = SiO2 ＋ A1203 ＋ P205 The crystallization area can be extended by adjusting the amount of water and tem- plate agent.

关 键 词：磷酸硅铝分子筛 水热合成 晶化区 模板剂 

分 类 号：TQ426.95[化学工程]