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活性炭负载La2(SO4)3催化合成顺丁烯二酸二丁酯
Catalytic Synthesis of Dibutyl Maleate Using La2(SO4)3/C as Catalyst
【摘要】 以活性炭负载La2(SO4)3为催化剂合成了顺丁烯二酸二丁酯,在醇/酐摩尔比2.5:1,反应温度115~120℃,反应时间2.0 h,催化剂用量3.0 g(顺丁烯二酸酐0.2mol)条件下,酯收率达97.2%。催化剂经处理再生可循环使用多次,且不污染环境,其优点明显。
【Abstract】 Dibutyl maleate was synthesized by using La2( SO4)3/C as catalyst under the optimum conditions as follows: the molar ratio of n - butanol to maleic anhydride 2.5, reaction temperature 115 - 120℃, reaction time 2.0 h, mass of catalyst 3 . 0 g ( based on 0. 2 mole maleic anhydride) . The yield of dibutyl maleate was about 97.2 % . The catalyst could be repeatedly used for several times and has no pollution to environment. It had obvious advantages.
【关键词】 硫酸镧;
顺丁烯二酸二丁酯;
活性炭;
催化合成;
【Key words】 La2(SO4)3; dibutyl maleate; activated carbon; catalytic synthesis;
【Key words】 La2(SO4)3; dibutyl maleate; activated carbon; catalytic synthesis;
- 【文献出处】 精细石油化工进展 ,Advances in Fine Fetrochemicals , 编辑部邮箱 ,2002年09期
- 【分类号】O623.624
- 【被引频次】4
- 【下载频次】61