| LaF_3对固体超强酸性质及催化萘齐聚反应的影响 |
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| 引用本文： | 房永征,金鸣林,钱湛芬.LaF_3对固体超强酸性质及催化萘齐聚反应的影响[J].煤炭转化,2009,32(1). |
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| 作者姓名： | 房永征 金鸣林 钱湛芬 |
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| 作者单位： | 1. 上海应用技术学院材料系,200233,上海
2. 安徽工业大学化工与环境学院,243002,安徽马鞍山 |
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| 基金项目： | 上海市高校优秀青年教师后备人才项目，上海教委创新基金 |
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| 摘 要： | 研究了稀土化合物LaF3的引入对固体超强酸催化剂SO42-/ZrO2性质的影响.用热台偏光显微镜及X射线衍射方法分析了固体超强酸在焙烧过程中形态结构变化及晶相转变过程.研究发现,LaF3引入对固体超强酸形态结构及晶相转变产生了影响.使用差示扫描量热(DSC)及热重(TG)技术分析了固体超强酸的热稳定性.引入LaF3提高了固体超强酸的结晶温度及催化剂中SO42-分解温度.红外光谱分析表明,引入LaF3后固体超强酸更易于脱除其中所含的水分.同时考察了LaF3引入对固体超强酸酸强度、SO42-含量及萘齐聚反应的影响.
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| 关 键 词： | 固体超强酸 晶相转变 热稳定性 齐聚反应 |
EFFECT OF LaF_3 INTRODUCTION ON PROPERTIES OF SOILD SUPERACID SO_4~(2-)/ZrO_2 AND ITS APPLICATION TO NAPHTHALENE OLIGOMERIZATION |
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| Fang Yongzheng,Jin Minglin,Qian Zhanfen.EFFECT OF LaF_3 INTRODUCTION ON PROPERTIES OF SOILD SUPERACID SO_4~(2-)/ZrO_2 AND ITS APPLICATION TO NAPHTHALENE OLIGOMERIZATION[J].Coal Conversion,2009,32(1). |
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| Authors: | Fang Yongzheng Jin Minglin Qian Zhanfen |
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| Affiliation: | Materials Engineering Department;Shanghai Institute of Technology;200233 Shanghai;School of Chemistry and Chemical Engineering;Anhui University of Technology;243002 Maanshan;Anhui |
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| Abstract: | The effect of LaF3 introduction on properties of solid superacid SO2-4/ZrO2 was studied in this paper.The crystal transformation and morphology of solid superacid SO2-4/ZrO2 and SO2-4/ZrO2-LaF3 were investigated with polarized microscope and XRD when they were calcinated.It was found that there was some influence of LaF3 introduction on crystal transformation and morphology of solid superacid.The thermal stability of solid super acid was determined by using DSC and TG technique.The crystal transforming temp... |
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| Keywords: | solid superacid crystal transformation thermal stability oligomerization |
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