1,1,1,3,3-五氯丙烷合成的反应动力学

doi:10.3969/j.issn.0438-1157.2014.01.022

化工学报 ›› 2014, Vol. 65 ›› Issue (1): 176-181.DOI: 10.3969/j.issn.0438-1157.2014.01.022

• 催化、动力学与反应器 • 上一篇下一篇

1,1,1,3,3-五氯丙烷合成的反应动力学

许晓涛, 张未星

浙江大学化学工程与生物工程学系, 浙江杭州 310027

收稿日期:2013-05-26 修回日期:2013-09-20 出版日期:2014-01-05 发布日期:2014-01-05
通讯作者: 张未星
作者简介:许晓涛（1988-），男，硕士研究生。

Kinetics of synthesis of 1,1,1,3,3-pentachloropropane

XU Xiaotao, ZHANG Weixing

Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China

Received:2013-05-26 Revised:2013-09-20 Online:2014-01-05 Published:2014-01-05

摘要/Abstract

摘要： 以铁粉为催化剂前体，磷酸二丁酯为助催化剂，对四氯化碳与氯乙烯合成1，1，1，3，3-五氯丙烷的调聚反应动力学进行了研究。考察了铁粉用量、助催化剂用量及反应温度对反应的影响。研究结果表明：在反应物料比n（CCl₄）：n（VnCl）=1：0.25，反应温度353～388 K范围内该反应为一级反应，反应活化能为69.15 kJ·mol^-1，得到了氯乙烯消耗速率的动力学方程。动力学研究结果表明，在无催化剂条件下反应遵循纯自由基机理，而在催化剂存在条件下反应遵循非链式氧化还原机理。

关键词: 1,1,1,3,3-五氯丙烷, 合成, 反应动力学, 铁粉, 磷酸二丁酯, 自由基

Abstract: The telomerization reaction kinetics of synthesis of 1,1,1,3,3-pentachloropropane promoted with iron powder as catalyst precursor and dibutyl phosphate as co-catalyst was studied. The effects of reaction temperature, amount of iron powder and co-catalyst on the reaction were investigated. It was found that the telomerization reaction was of first order and activation energy was 69.15 kJ·mol^-¹. A reaction kinetic equation was presented. This reaction followed a free radical reaction mechanism in the absence of catalyst, but followed a non-chain redox mechanism in the presence of catalyst.

Key words: 1,1,1,3,3-pentachloropropane, synthesis, reaction kinetics, iron powder, dibutyl phosphate, radical

中图分类号:

TQ013.2

许晓涛, 张未星. 1,1,1,3,3-五氯丙烷合成的反应动力学[J]. 化工学报, 2014, 65(1): 176-181.

XU Xiaotao, ZHANG Weixing. Kinetics of synthesis of 1,1,1,3,3-pentachloropropane[J]. CIESC Journal, 2014, 65(1): 176-181.

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1,1,1,3,3-五氯丙烷合成的反应动力学

Kinetics of synthesis of 1,1,1,3,3-pentachloropropane

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