在Pr_3N－P_2O_5－Al_2O_3－H_2O体系中合成AlPO_4－5分

A Study on Synthesis of Aluminophosphate Molecular Sieve AlPO_4-5 in Pr_3N-P_2O_5-Al_2O_3-H_2O System

选用三正丙胺为模板剂．采用水热晶化法合成ＡｌＰＯ４－５分子筛。在Ｐｒ３Ｎ－Ｐ２Ｏ５－Ａｌ２Ｏ３－Ｈ２Ｏ体系中研究了水热晶化条件──模板剂用量、反应混合物ｐＨ值、晶化时间和晶化温度等。对ＡｌＰＯ４－５分子筛晶相形成和产物结晶度的影响。通过ＸＲＤ、ＩＲ、ＳＥＭ及ＤＴＡ、ＴＧ等分析手段，表征了ＡｌＰＯ４－５的结构和热稳定性能。

The AlPO4-5 molecular sieve was synthesized hydrothermally in the presence of organic amine (Pr3N) as the template.A systematic investigation was made into the effects of conditions for hydrothermal crystallization,amount of template(Pr3N),PH value of reactive mixture.crystallization time and crystallization temperature etc.,on the formation of AlPO4-5 molecular sieve and crystallinity of the product.The structure and properties of AlPO4-5 were characterized by means of XRD,IR,SEM,DTA and TG.