| 稀土固体超强酸SO42-/SnO2-Al2O3-Sm2O3的制备及其催化性能 |
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| 引用本文： | 闫鹏,郭海福,王赵志,陈志胜,郝向英.稀土固体超强酸SO42-/SnO2-Al2O3-Sm2O3的制备及其催化性能[J].化学世界,2011,52(4):193-196,210,238. |
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| 作者姓名： | 闫鹏 郭海福 王赵志 陈志胜 郝向英 |
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| 作者单位： | 肇庆学院,化学化工学院,广东,肇庆,526061 |
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| 基金项目： | 广东省自然科学基金，肇庆市科技计划项目 |
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| 摘 要： | 采用沉淀-浸渍法制备了新型稀土固体超强酸SO42-/SnO2-Al2O3-SmO3,通过IR、TG等手段对其进行了表征分析,应用于合成丁醛乙二醇缩醛,考察其催化性能,较系统地研究了稀土氧化物种类、用量、焙烧温度、焙烧时间、浸渍液浓度等因素对产品收率的影响.实验结果表明适宜的催化剂制备条件为:稀土氧化钐含量为3%,焙烧温...
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| 关 键 词： | 稀土固体超强酸 氧化锡 氧化钐 丁醛乙二醇缩醛 合成 |
The Preparation and Catalytic Property of Rare Earth Solid Superacid SO2-4/SnO2-Al2O3-Sm2O3 Catalyst |
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| YAN Peng,GUO Hai-fu,WANG Zhao-zhi,CHEN Zhi-sheng,HAO Xiang-ying.The Preparation and Catalytic Property of Rare Earth Solid Superacid SO2-4/SnO2-Al2O3-Sm2O3 Catalyst[J].Chemical World,2011,52(4):193-196,210,238. |
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| Authors: | YAN Peng GUO Hai-fu WANG Zhao-zhi CHEN Zhi-sheng HAO Xiang-ying |
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| Abstract: | New rare earth solid superacid SO42-/SnO2-Al2O3-Sm2O3 was prepared by deposition-steep method,characterized by IR,TG,and used to synthesize diacetal of ethandiol.The effect of rare earth oxide type and dosage,calcination temperature and time,and impregnation concentation on the yield of diacetal of ethandiol product was discussed in detail.The results showed that the optimum preparation conditions were: the rare earth oxide was Sm2O3 and the mass fraction was 3% in the SnO2-Al2O3 oxides;the calcination temperature was 550 ℃;the calcination time was 3 h;and the impregnation solutions was 3.0 mol/L H2SO4.The stability of catalytic active center was improved effectively by adding Sm2O3,which restrained catalyst deactivation. |
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| Keywords: | rare earth solid superacid tin oxide Sm2O3 diacetol of ethandiol synthesize |
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