Study on Catalytic Synthesis of Dibutyi Adipate and Kinetics of Esterification
[1]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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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
30
Number of periods:
2009年03期
Page number:
101-105
Column:
Public date:
1900-01-01
- Title:
- Study on Catalytic Synthesis of Dibutyi Adipate and Kinetics of Esterification
- CLC:
- -
- DOI:
- -
- 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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Last Update:
1900-01-01