摘要
以TS分子筛为催化剂,H_2O_2为氧化剂,催化氧化正丁醇制备正丁酸.研究反应温度、反应时间、投料方式、H_2O_2与正丁醇的物料比等对反应转化率和选择性的影响;并通过正交实验法对反应条件进行优化,探索最佳反应条件.最佳合成工艺条件:W(TS)/n(正丁醇)=6.1 g/mol,n(正丁醇):n(H_2O_2,30%)=1:3,反应温度90℃,反应时间12h;正丁醇的转化率可达到100%,选择性在99.5%以上.该合成工艺具有高效、清洁、低成本等特点,并且催化剂易于回收利用,具有广阔的应用和市场前景.
Using TS as catalyst and H_2O_2 as the oxidant, n-butyric acid is prepared via the oxidation of n-butanol. The effects of the reaction conditions, including reaction temperature, reaction time, feeding mode and feed ratio, on the conversion and selectivity of the reaction were investigated. The results show that the optimal reaction conditions of the synthesis of n-butyric acid are found as follows： W（TS）： n（n-butanol） = 6.1 g/mol, n（n-butanol） /n（H_2O_2, 30%） = 1： 3, the reaction temperature was maintained 90 °C and the optimal reaction time is 12 h. The conversion of n-butanol was 100% and the selectivity is up to 99.5%.
出处
《湖南理工学院学报（自然科学版）》
CAS
2015年第4期57-59,81,共4页
Journal of Hunan Institute of Science and Technology(Natural Sciences)
基金
湖南省教育厅产业化培育项目(13CY020)
2014年度湖南省大学生研究性学习和创新性实验计划项目(362)
关键词
催化氧化
催化剂
正丁醇
正丁酸
catalytic oxidation
titanium silicalite（TS）
n-butanol
n-butyric acid
