乙酸和丙烯一步合成乙酸异丙酯工艺  

Technology of one-step synthesis of isopropyl acetate by acetic acid and propylene

作　　者：李有林[1] 崔咪芬[1] 乔旭[1] 汤吉海[1] 

机构地区：[1]南京工业大学化学化工学院,材料化学工程国家重点实验室,江苏南京210009

出　　处：《南京工业大学学报（自然科学版）》2010年第3期30-34,共5页Journal of Nanjing Tech University(Natural Science Edition)

基　　金：国家高技术研究发展计划(863计划)资助项目(2009AA03Z504);江苏省高校自然科学研究重大资助项目(09KJA530004)

摘　　要：在Ti材高压釜中进行了催化剂的筛选和工艺条件的优化.考察催化剂种类及用量、反应温度、压力、时间等因素对反应的影响.通过催化剂的筛选,发现自制固体催化剂的活性高于采用对甲苯磺酸、β型分子筛作为催化剂的活性.采用自制固体催化剂,适宜的反应工艺条件为:反应温度130℃,催化剂用量为乙酸质量的7.5%,压力1.5MPa,反应时间6 h.在此条件下,乙酸转化率可达到85.43%,乙酸异丙酯对丙烯的选择性为98.52%.The catalysts and the optimization of process conditions were investigated in a titanium lined autoclave.Some influencing factors,such as catalysts,the dosage of catalysts,temperature,pressure,reaction time and so on were studied.From the results,it was found that the catalytic activity of self-made solid catalyst was higher than the other two catalysts of p-toluenesulfonic acid and β-zeolite.The optimum reaction conditions for the self-made solid catalyst were shown as follows：reaction temperature 130℃,the catalyst amount of 7.5% of acetic acid,pressure 1.5MPa,and reaction time 6h.Under these conditions,the conversion of the acetic acid and the selectivity of the isopropyl acetate reached 85.43% and 98.52%.

关 键 词：乙酸 丙烯 乙酸异丙酯 原子经济反应 

分 类 号：TQ03[化学工程]