[1]孙晓波,刘焕,栾向海,等.己二酸二丁酯催化合成动力学研究[J].郑州大学学报(工学版),2009,30(03):101-105.
　SUN Xiaobo,LIU Huan,LUAN Xianghai,et al.Study on Catalytic Synthesis of Dibutyi Adipate and Kinetics of Esterification[J].Journal of Zhengzhou University (Engineering Science),2009,30(03):101-105.
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己二酸二丁酯催化合成动力学研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
30
期数:
2009年03期
页码:
101-105
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Study on Catalytic Synthesis of Dibutyi Adipate and Kinetics of Esterification
作者:
孙晓波; 刘焕; 栾向海; 等.
郑州大学,化学工程学院,河南,郑州,450001, 河南省计量科学研究院,河南,郑州,450008
Author(s):
SUN Xiaobo; LIU Huan; LUAN Xianghai; etc
1．College of Chemical Engineering，Zhengzhou University，Zhengzhou 450001，China；2．Henan Institute of Metrology，Zheng—zhou 450008，China
关键词:
磷钨酸;  己二酸二丁酯;  酯化反应;  动力学
Keywords:
phosphotungstic acid;  Dibutyl adipate;  esterification reactions;  Dynamics
文献标志码:
A
摘要:
采用磷钨酸为催化剂、甲苯为带水剂,利用均匀设计实验考察醇酸摩尔比、催化剂用量、带水剂用量和反应时间对己二酸二丁酯收率的影响.筛选出最佳工艺条件:醇酸摩尔比为3.3:1,催化剂用量为酸质量的1.5%,带水剂用量为体系总质量的24%,反应时间为2 h,己二酸二丁酯收率可达99.45%.对实验数据进行回归处理,获得不同反应条件下动力学参数,结果表明,该酯化反应服从二级不可逆动力学模型.反应表观活化能Ea=97.55 kJ·mol-1,指前因子k0=1.75×1011L·min.
Abstract:
Uniform design is used to obtain the optimal technic of the synthesis of dibutyl adipate，with thephosphotungstic acid as catalyst，and toluene as azeotropic solvent，with the raw material of adipic acid and nbutan01．Various factors such as molecular ratio of n—Butanol to adipic acid。amount of catalyst，reaction time，amount of azeotropic solvent which would influence the reaction were investigated．The results indicate that99．45％yield could be obtained with the following optimal reaction conditions：the molecular ratio of n—buta—nol to adipic acid 3．3：1，the amount of catalyst 1．5％by mass of adipic acid，the amount of azeotropic agent24％by total mass and the reaction time 2 hs．The experiment also researched the kinetics reaction of the catalysis esterification．The experimental results indicated that the synthesis of dibutyl adipate is a second orderirreversibale reaction，the apparent activation energy：E口=97．55 kJ·mol一1，the frequency factor was：詹o=1．75×10¨L·min～·mol～．and the kinetic equation was also tested by experiment．

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　WAN Ya-zhen,LIU Ya-nan,CHEN Di.Preparation of Supported Phosphotungstic Acid Catalyst andlts Application in the Synthesis of BEA[J].Journal of Zhengzhou University (Engineering Science),2015,36(03):49.[doi:10.3969/j. issn.1671 -6833.2015.04.012]

更新日期/Last Update: 1900-01-01