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    万颖, 卢冠忠. 混合模板剂合成钛硅分子筛[J]. 华东理工大学学报(自然科学版), 1997, (2): 249-253.
    引用本文: 万颖, 卢冠忠. 混合模板剂合成钛硅分子筛[J]. 华东理工大学学报(自然科学版), 1997, (2): 249-253.
    Synthesis of TS Zeolite Using Mixture Templeting Reagent[J]. Journal of East China University of Science and Technology, 1997, (2): 249-253.
    Citation: Synthesis of TS Zeolite Using Mixture Templeting Reagent[J]. Journal of East China University of Science and Technology, 1997, (2): 249-253.

    混合模板剂合成钛硅分子筛

    Synthesis of TS Zeolite Using Mixture Templeting Reagent

    • 摘要: 以钛酸正丁酯为钛源,正硅酸乙酯为硅源,在443K用罩丙基溴化铵和四乙基氢氧化铵的混合物的为模板剂,合成了Ti-Si分子筛。经XRD,FT-IR,SEM以及BET比表面积分析,证实了在以TPABr+TEAOH为模板剂合成的样品中钛已进入silicalite-1的骨架,而以TPABr+二乙胺或三甲胺为模板剂则合成不出Ti-Si分子筛。SEM的结果表明用氨水和TEAOH调节反应液的碱度,对晶体的生长和形

       

      Abstract: Using the mixture templeting reagent, tetrabutyl titanate as titanium source, tetraethyl orthosilicate as silicon source, the synthesis of Ti Si zeolite was studied. TS 1 zeolite was prepared using the mixture of tetrapropyl ammonium bromide (TPABr) and tetraethyl ammonium hydroxide (TEAOH) as a templating reagent at 443K. XRD, IR and SEM were employed to characterize the synthesize samples. The surface area of samples was measured by BET. These studies indicated that the Ti 4+ entered the framework of silicalite 1 in the samples using the templating reagent of TPABr and TEAOH. But the crystal of TS 1 zeolite could not be obtained using TPABr + diethyl amine (DEA) or TPABr + trimethyl amine (TMA) as a templating reagent. The results of SEM also showed that the size of the crystal prepared with the mixture templating reagent was more irregular and larger than that with TPAOH. The influence of adding NH 4OH to adjust the pH of the solution synthesizing zeolite on the growth and topology of crystal is different with the situation of adding TEAOH. The function of organic bases (TEAOH, TEA and DMA) in the synthesis gel was also discussed.

       

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