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硅桥联茂金属催化1-癸烯聚合的研究 被引量:5
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作者 江洪波 俞凯健 +1 位作者 洪显忠 宋上飞 《石油炼制与化工》 CAS CSCD 北大核心 2017年第1期61-66,共6页
用硅桥联茂金属催化体系rac-Me_2Si(1-Ind)_2ZrCl_2/Al(i-Bu)_3/[Me_2NHPh]^+[B(C_6F_5)_4]^-催化1-癸烯聚合,考察了茂金属浓度、Al/Zr摩尔比、B/Zr摩尔比、反应温度、反应时间对聚合产物性能的影响。结果表明:在Zr/1-癸烯摩尔比为4... 用硅桥联茂金属催化体系rac-Me_2Si(1-Ind)_2ZrCl_2/Al(i-Bu)_3/[Me_2NHPh]^+[B(C_6F_5)_4]^-催化1-癸烯聚合,考察了茂金属浓度、Al/Zr摩尔比、B/Zr摩尔比、反应温度、反应时间对聚合产物性能的影响。结果表明:在Zr/1-癸烯摩尔比为4×10^(-5)、Al/Zr摩尔比为80、B/Zr摩尔比为1.2、反应温度为80℃、反应时间为1h的条件下,1-癸烯的转化率达到97.6%,运动黏度(100℃)为599.4mm^2/s,黏度指数为285,倾点为-26℃,数均相对分子质量为12 608,相对分子质量分布为1.86。同时结合聚合反应机理和催化剂微观构型,对比分析了硅桥联茂金属催化体系rac-Me_2Si(1-Ind)_2ZrCl_2/Al(i-Bu)_3/[Me_2NHPh]^+[B(C_6F_5)_4]^-与亚乙基桥联茂金属催化体系rac-Et(1-Ind)_2ZrCl_2/Al(i-Bu)_3/[Me_2NHPh]^+[B(C_6F_5)4]^-在催化1-癸烯聚合方面的不同表现,表明无论是从催化剂的活性还是从产物相对分子质量来看,硅桥联茂金属催化剂的性能明显优于亚乙基桥联催化剂。最后釆用全自动反应量热仪进行放大反应,得到此反应的聚合反应热为61.8kJ/mol。 展开更多
关键词 硅桥联茂金属 聚合 1-癸烯 量热反应仪
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Venting Design for Di-tert-butyl Peroxide Runaway Reaction Based on Accelerating Rate Calorimeter Test 被引量:6
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作者 魏彤彤 蒋慧灵 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2012年第4期710-714,共5页
In order to design the relief system size of di-tert-butyl peroxide(DTBP) storage tanks,the runaway re-action of DTBP was simulated by accelerating rate calorimeter(ARC).The results indicated that under adiabatic cond... In order to design the relief system size of di-tert-butyl peroxide(DTBP) storage tanks,the runaway re-action of DTBP was simulated by accelerating rate calorimeter(ARC).The results indicated that under adiabatic conditions the initial exothermic temperature was 102.6 ℃,the maximum self-heating rate was 3.095×107 ℃·min-1,the maximum self-heating temperature was 375.9 ℃,and the pressure produced by unit mass was 4.512 MPa·g-1.Judged by ARC test,the emergency relief system for DTBP was a hybrid system.Based on Design Institute for Emergency Relief System(DIERS) method,the releasing mass flow rate W was determined by Leung methods,and the mass velocity G was calculated by two modified Omega methods.The two relief sizes calculated by monograph Omega method and arithmetic Omega method are close,with only 0.63% relative error.The monograph Omega method is more convenient to apply. 展开更多
关键词 di-tert-butyl peroxide accelerating rate calorimeter runaway reaction venting size
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