| SDY型沸石的浸取处理及其对催化性能的影响 |
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| 引用本文： | 傅军,鲍书林.SDY型沸石的浸取处理及其对催化性能的影响[J].高等学校化学学报,1994,15(1):89-92. |
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| 作者姓名： | 傅军 鲍书林 |
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| 作者单位： | 复旦大学化学系，南京大学化学系 |
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| 摘 要： | 分别用Ｎａ２Ｈ２ＥＤＴＡ、Ｈ４ＥＤＴＡ和Ｈｃｌ对ＳＤＹ型沸石的非骨架铝进行了浸取处理，并应用化学分析、ＸＲＤ、高真空苯吸附、低温Ｎ２吸附、ＮＨ３－ＴＰＤ和正庚烷裂解脉冲微型反应等物理和化学实验技术对浸取前后样品的结构、酸性和催化性能进行了研究。发现Ｎａ２Ｈ２ＥＤＴＡ能选择地浸取沉积于沸石微孔和二次孔中的非骨架铝碎片，且不损伤沸石骨架，浸取出部分非骨架铝后的样品，其正庚烷裂解和抗氮性能均有所提高。
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| 关 键 词： | SDY型 沸石 浸取 催化 裂化 |
The Leaching Treatment of SDY Zeolite and Its Influence on Catalytic Properties |
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| FU Jun.The Leaching Treatment of SDY Zeolite and Its Influence on Catalytic Properties[J].Chemical Research In Chinese Universities,1994,15(1):89-92. |
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| Authors: | FU Jun |
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| Abstract: | The extra-framework aluminum of SDY zeolite has been leached out with Na2H2EDTA,H4EDTA and HCl respectively.The structures,acidities and catalytic properties of these samples have been studied by using chemical analyses,XRD,N2 adsorption,NH3-TPD and n-heptane cracking reaction.It is found that Na_2H_2EDTA is a selective extractant which removes only amorphous extra-framework aluminum deposited in the zeolite pores without destroying the framework aluminum,Both the n-heptane cracking activity and nitrogen-resistance properties of SDY-NaE are higher than those of SDY. |
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| Keywords: | SDY zeolite Leaching Extra-framework aluminum Catalytic cracking |
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