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作 者:亢建平[1] 张伟[1] 曾纪珺[1] 郝志军[1] 王伟[1] 吕剑[1]
出 处:《石油化工》2009年第9期994-997,共4页Petrochemical Technology
基 金:陕西省"13115"科技创新工程重大科技专项项目(2007ZDKG-40)
摘 要:以Cu粉为催化剂、N,N-二甲基甲酰胺(DMF)为溶剂、CCl4和2-氯丙烯为原料,进行调聚反应合成了1,1,1,3,3-五氯丁烷。考察了催化剂用量、反应压力、反应温度对合成反应的影响;同时研究了该合成反应的动力学。实验结果表明,适宜的1,1,1,3,3-五氯丁烷合成反应的条件为:催化剂用量0028mol,04MPa,373K,CCl40.878mol,2-氯丙烯0.595mol,DMF用量1.040mol。在此条件下采用假一级动力学方法确定,在353~393K内,1,1,1,3,3~五氯丁烷合成反应为二级反应,表观活化能为76,8kJ/mol,指数前因子为1,5×10^8,得到表观反应动力学方程。1,1,1,3,3-pentachlorobutane was synthesized by telomerization from carbon tetrachloride and 2-chloropropene with copper powder as catalyst in dimethylformamide (DMF). The effects of catalyst dosage, reaction pressure, and temperature on the synthesis were investigated and reaction kinetics of 1,1,1,3,3-pentachlorobutane synthesis was studied. The proper reaction conditions are: catalyst dosage 0. 028 mol, pressure 0.4 MPa, temperature 373 K, CC]4 dosage 0. 878 mol, 2-chloropropene dosage 0.595 mol and solvent DMF dosage 1. 040 mol. The telomerization is second-order reaction in ranges of 353 - 393 K by treating with pseudo-first-order method, the apparent activation energy is 76.8 kJ/mol, the pre-exponential factor is 1.5 × 10^8 and the apparent kinetic equation is obtained.
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