H_3PO_4修饰TiO_2/SO_4~(2-)固体超强酸催化合成原乙酸三甲酯
Journal of Shanxi University(Natural Science Edition)（2012）
Abstract
以钛酸四正丁酯为前驱体,以硫酸为抑制剂,采用溶胶-凝胶法制备了纯的TiO2/SO24-和TiO2/PO43-/SO42-催化剂.通过使用电镜、红外以及氮气吸附脱附对其进行表征,结果表明催化剂为具有孔结构的球形纳米催化剂,微粒分布较分散.并应用于乙腈的加成反应,以乙腈和甲醇为原料在低温条件下合成了原乙酸三甲酯,并讨论了反应工艺,得到最佳反应条件.
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Key words
acetonitrile,catalytic,the original three acetic acid methyl ester
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