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

XU Xiaotao; ZHANG Weixing

doi:10.3969/j.issn.0438-1157.2014.01.022

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

更新时间：2025-12-10

- Kinetics of synthesis of 1,1,1,3,3-pentachloropropane
- CIESC Journal Issue 1, Pages: 176-181(2014)
- 作者机构：
  
  浙江大学化学工程与生物工程学系,浙江,杭州,310027
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.01.022
  CLC： Q013.2
- Online First：05 January 2014，
  
  Published：05 January 2014
- 稿件说明：
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XU Xiaotao, ZHANG Weixing. Kinetics of synthesis of 1,1,1,3,3-pentachloropropane[J]. CIESC Journal, 2014, (1): 176-181.
DOI：

XU Xiaotao, ZHANG Weixing. Kinetics of synthesis of 1,1,1,3,3-pentachloropropane[J]. CIESC Journal, 2014, (1): 176-181. DOI： 10.3969/j.issn.0438-1157.2014.01.022.

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。

Abstract

The telomerization reaction kinetics of synthesis of 1

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.

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