摘要
用Ｈ－ＺＳＭ－５沸石分子筛作催化剂，在釜式反应器内对丁醇和乙酸的酯化反应进行了研究，考察了分子筛的焙烧温度、硅铝比、催化剂用量、反应物摩尔比和反应温度等对酯化反应的影响。结果表明，当醇酸比为１．２，在５５０℃下焙烧的Ｈ－ＺＳＭ－５（５０）用量为３％，反应温度为１２０℃时，反应５小时乙酸的转化率大于９２％，提出了在无催化剂和以Ｈ－ＺＳＭ－５为催化剂情况下酯化反应动力学模型。
The esterification reaction of acetic acid with n-butyl alcohol in liquid phase on HZSM-5 zeolites was studied. The effect of calcination temperature of HZSM-5 on ac-tivity,the ratlo of SiO_ 2/Al_2O_3 in the zeolite,the amount of the catalyst used,the ratio of reac-tants,and reaction temperatures on the reaction rate were investigated. When mole ratio of alcohol to acid is 1.2,and 3%(wt)HZSM-5(50)catalyst calcined at 550℃ is used,the reac-tion rate is over 92%at 120℃ for 5 houres, The kinetic equations for the noncatalytic esteri-fication and those of the esterification with HZSM-5 as catalvst are established.
出处
《曲阜师范大学学报（自然科学版）》
CAS
1995年第1期61-64,共4页
Journal of Qufu Normal University(Natural Science)
