| 在铌酸催化剂上气相酯化反应的研究 |
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| 引用本文： | 孙中琦,王旭.在铌酸催化剂上气相酯化反应的研究[J].高等学校化学学报,1989,10(11):1131-1132. |
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| 作者姓名： | 孙中琦 王旭 |
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| 作者单位： | 吉林大学化学系
(孙中琦，王旭，崔圣范，温陵生，邹乐辉，郭灿雄)，吉林大学化学系(千载虎) |
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| 摘 要： | 氧化铌在含水体系中表现出强酸性,因而得到越来越多的应用。有机羧酸酯是一类重要的化工产品,一般用硫酸等作催化剂,但存在腐蚀设备等问题。我们采用铌酸催化剂进行乙醇和6种羧酸的常压气相酯化反应。实验表明,不仅乙醇转化性高,而且酯的选择率高达100％,同时,也克服了上述液体酸催化剂的缺点,有希望成为酯化反应的有效催化剂。
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| 关 键 词： | 铌酸催化剂 酯化反应 |
The Esterification Catalyzed by Niobic Acid in Gas-phase |
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| Sun Zhongqi,Wagn Xu,Cui Shengfan,Wen Lingsheng,Zou Lehui,Guo Canxiong,Qian Zaihu.The Esterification Catalyzed by Niobic Acid in Gas-phase[J].Chemical Research In Chinese Universities,1989,10(11):1131-1132. |
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| Authors: | Sun Zhongqi Wagn Xu Cui Shengfan Wen Lingsheng Zou Lehui Guo Canxiong Qian Zaihu |
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| Abstract: | Gas-phase esterifications of six kinds of carboxylic acid with ethyl alcohol catalyzed by nio-bic acid at normal pressure were studied. The results show that the conversion of ethanol is very high in each esterification here, it is up to 92% for esterification of acetic acid with ethanol, and that, especially, the selectivities for all the esterification are up to 100%. |
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| Keywords: | Catalyst of niobic acid Esterif ication Catalysis |
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