| 固体超强酸S_2O_8~(2-)/TiO_2-Al_2O_3催化合成乙酸异戊酯的动力学研究 |
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| 引用本文： | 杨呈祥,毛建华,葛元燕.固体超强酸S_2O_8~(2-)/TiO_2-Al_2O_3催化合成乙酸异戊酯的动力学研究[J].四川理工学院学报(自然科学版),2007,20(1):64-67. |
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| 作者姓名： | 杨呈祥 毛建华 葛元燕 |
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| 作者单位： | 盐城师范学院化学系,江苏,盐城,224002 |
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| 基金项目： | 盐城师范学院科研资助基金 |
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| 摘 要： | 文章研究了以固体超强酸S2O82-/TiO2-Al2O3为催化剂合成乙酸异戊酯的反应,在反应温度分别为94℃﹑100℃及106℃下,测出合成乙酸异戊酯的动力学方程参数,建立了动力学方程式,并与无催化剂时酯化反应的活化能及动力学方程式进行了比较。结果表明,最佳合成条件为:醇酸摩尔比1.3∶1,催化剂用量1g,带水剂用量10mL。固体超强酸S2O82-/TiO2-Al2O3使反应活化能明显降低,是乙酸异戊酯合成的有效催化剂。
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| 关 键 词： | 固体超强酸 乙酸异戊酯 催化合成 动力学 活化能 |
| 文章编号： | 1673-1549(2007)01-0064-04 |
| 修稿时间： | 2006年5月9日 |
Study on the Kinetics of the Synthesis of Isoamyl Acetate with the Catalyst of S2O82-/TiO2-Al2O3 |
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| YANG Cheng-xiang,MAO Jian-hua,GE Yuan-yan.Study on the Kinetics of the Synthesis of Isoamyl Acetate with the Catalyst of S2O82-/TiO2-Al2O3[J].Journal of Sichuan University of Science & Engineering:Natural Science Editton,2007,20(1):64-67. |
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| Authors: | YANG Cheng-xiang MAO Jian-hua GE Yuan-yan |
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| Abstract: | The synthesis of isoamyl acetate with the solid super acidic catalyst of S2O82-/TiO2-Al2O3 is investigated.The kinetic parameters of reaction are measured at 94℃,100℃ and 106℃ respectively and the kinetic equation is thus built,which are compared with those of the reaction without catalyst.The results show that the optimum reaction conditions are: n(isoamylalcohol) :n(acetic acid)=1.3:1,the amounts of the catalyst and the water-taking reagent 1.0g and 10mL respectively.The activation energy of the reaction with solid super acidic catalyst is obviously lower than that of the reaction without catalyst,Sugesting that S2O82-/TiO2-Al2O3 is the the effective catalyst of the synthesis of amyl acetate |
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| Keywords: | solid superacid isoamyl acetate catalytic synthesis kinetic activation energy |
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