蒸汽相法硼硅MFI沸石的合成与表征

SYSTHESIS AND CHARACTERIZATION ON B-Si MFI ZEOLITE FROM THE VAPOUR PHASE METHOD

在三乙胺（Ｅｔ３Ｎ）－乙二胺（ＥＤＡ）－Ｈ２Ｏ蒸汽相中，无定形凝胶Ｎａ２Ｏ－Ｂ２Ｏ２－ＳｉＯ２－Ｈ２Ｏ晶化生成硼硅ＭＦＩ（ＺＳＭ—５）沸石．研究了硼硅ＭＦＩ沸石的适宜晶化条件，以及氯化钠、碳酸钠和磷酸钠取代氢氧化钠作为钠源的影响．晶体结构参数、１１ＢＮＭＲ、ＦＴ－ＩＲ的结果表明，由蒸汽相法合成的硼硅ＭＦＩ沸石，其硼原子进入了沸石骨架．

morphous gel-Na2O-B2O3-SiO2-H2O grows into zeolite B-Si MFI in vapour-tricthylaminc (Et3N)-ethyldiamine (EDA)-H2O. They are studied suitable crystalline conditions for B-Si MFI and the influence of which NaCl, Na2CO3, and Na3PO4 replace NaOH as sodium source. The results of crystalline structure parameter, 11B NMR, and FT-IR illustrate that boron atoms of B-Si MFI zeolite from the vapour phase method are inside of zeolitic framework.