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甲基丙烯醛氧化酯化制甲基丙烯酸甲酯
Authors
李增喜
李桂花
李铭岫
陈玉焕
Publication date
1 January 2004
Publisher
Abstract
制备了用于甲基丙烯醛(MAL)一步氧化酯化为甲基丙烯酸甲酯(MMA)的新型催化剂;考察了反应温度、催化剂在反应体系中的质量分数对MAL转化率和产物选择性的影响;将离子液体bmimPF6用于该反应中,不仅提高了产物的选择性,还能有效防止产物的聚合。反应温度θ=50℃,催化剂在反应体系中质量分数为2.4%,pH=10.5,02流量6mL/min,反应时间6h时,在反应体系中添加1mL离子液体bmimPF6,MAL的转化率为96.2%,MMA单体的选择性可达98.7%
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Last time updated on 05/12/2019