二仲丁基二硫醚合成反应动力学研究  

Kinetic Study on Synthesis of Di-sec Butyl Disulfide

作　　者：胡国勤[1] 吴培培[1] 谢帮海[1] 张素娟[1] 

机构地区：[1]郑州大学化工与能源学院,河南郑州450001

出　　处：《郑州大学学报（工学版）》2014年第1期73-76,共4页Journal of Zhengzhou University（Engineering Science）

基　　金：河南省科技攻关重点资助项目(112102210236)

摘　　要：研究了氯代仲丁烷和二硫化钠溶液在相转移催化剂的作用下合成二仲丁基二硫醚的反应动力学,建立了动力学模型.该反应属于一级反应,其表观动力学方程：rA=-dcA/dt=47 098.67exp（-5 153.99/T）cA,表现活化能为42.85 kJ/mol,介于一般化学反应活化能40～200 k J/mol之间,属于化学反应控制过程,并对提出的动力学模型进行了实验验证,证实了该模型具有可靠性.Kinetics for synthesizing di-sec butyl disulfide from 2-chlorobutane and sodium disulfide in the presence of phase transfer catalyst was studied in this experiment. And the reaction and the kinetics model of the whole process were established. It was proved to be a first order reaction and the chemical reaction kinetics characterization equation can be expressed as rA = -dcA/dt =47 098.67exp（ -5 153.99/T）cA. The activation energy was determined to be 42.85 kJ/mol in the Arrhenius equation. And the reaction of synthesizing di sec butyl disulfide belonged to control production of chemical reaction because the apparent activation energy was in range of 40 -200 kJ/mol. And to our satisfaction, through experimental verification, the kinetic model was proved to be valid.

关 键 词：二仲丁基二硫醚 氯代仲丁烷 二硫化钠 动力学 

分 类 号：TQ013.2[化学工程]