| 吴燕妮,郭海福,崔秀兰.红外光谱研究新型稀土固体超强酸催化剂[J].分子催化,2006,(4):369-371 |
| 红外光谱研究新型稀土固体超强酸催化剂 |
| Study on the New Type Rare Earth Solid Super Acid Catalyst by IR Spectra |
| 投稿时间：2005-10-14 |
| DOI： |
| 中文关键词: 红外光谱,固体超强酸催化剂,S2O82-/ZrO2-SiO2-Sm2O3,活性 |
| 英文关键词:Catalyst,Solid super acid,Activity |
| 基金项目:广东肇庆市科技创新项目(编号:2005004) |
| 吴燕妮 郭海福 崔秀兰 |
肇庆学院轻化系 广东肇庆526061(吴燕妮，郭海福)
，内蒙古工业大学化工学院 内蒙古呼和浩特010062(崔秀兰)
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| 中文摘要: |
| 硫酸根促进型固体超强酸催化剂,因具有活性好、适用面广、易与产物进行分离、对反应器设备腐蚀小、对环境污染小以及可重复使用等优点,成为当前催化领域的研究热点之一[1,2].但由于该类催化剂稳定性不够理想而尚未实现工业化.为了提高催化剂的稳定性和选择性,人们从催化剂制备方法上做了很多有益的尝试[3].我们通过对催化剂进行改性,在廖世军[4]等人沉淀-混合共沉淀法的基础上进一步改进,制得新型氧化钐固体超强酸催化剂S2O82-/ZrO2-SiO2-Sm2O3,在乙酸丁酯、乳酸丁酯的酯化反应中显示出较高的活性和稳定性[5].本文采用红外光谱测试技术… |
| 英文摘要: |
| The system of the catalyst S_(2)O_8~(2-)/ZrO_(2)-SiO_(2)-Sm_(2)O_(3) were studied by IR,and the effect on the catalyst characters by different Si/Zr atom ratio,immersing solution and rare earth were studied.The result showed that the catalyst has the best activity when the Si/Zr atom ratio is 15%,3.0% Sm_(2)O_(3) and immersing solution was S_(2)O_8~(2-) instead of SO_4~(2-).The deduction of S_(2)O_8~(2-) maybe formed a bridge structure with Zr not with Si were explained well here. |
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