Abstract:

A preliminary kinetics model of the non-mercuric homogenous catalytic hydrochlorination of acetylene was established. Compared model（Ⅰ） and model（Ⅱ） by the phase equilibrium and reaction kinetics data in the PtCl₄/primene^TM JM-T/dodecane system， it was concluded that model Ⅰ may outperform model Ⅱ in terms of goodness of fit. And k₁^′=5.2，k₂^′=3.7 and k_－1=1287.8，test of significance F=3.801. According to model Ⅰ，the reaction mechanism is that catalyst Pt（Ⅳ）adsorbs with acetylene and then reacts with hydrogen chloride，and the former step is  rate determining.

摘要：

初步研究了以PtCl₄为催化剂，在十二烷/JM-T盐酸盐液相体系中，乙炔氢氯化制氯乙烯的均相反应动力学模型。根据测量组分在十二烷/JM-T体系中物料的气液平衡和反应动力学数据，并对实验数据进行回归方差分析，比较两个模型（Ⅰ） 和（Ⅱ） ，认为模型Ⅰ与实验数据拟合得更好，其中k₁^′=5.2，k₂^′=3.7和k_－1=1287.8，回归分析的显著性检验F=3.801。根据模型Ⅰ初步推测该反应的反应过程是：C₂H₂先和催化剂Pt（Ⅳ）发生化学吸附，再和体系中的HCl反应；其中C₂H₂和催化剂络合为反应的控制步骤。