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研究了在25℃加氢汽油介质中,铁系胶体催化剂[Fe(naph)2Al(iBu)3—CH2CHCH2Cl]单组分、多组分按不同配比混合,非水体系电导率与浓度的关系,结合Tyndal效应,聚合实验结果,得出Al(iBu)3以缔合状态存在并解离成离子对;它同环烷酸亚铁的作用是形成胶核的主要反应,与氯丙烯反应生成的氯化异丁基铝,在胶核表面参与形成活性中心;由过量Al(iBu)3解离的离子对形成的双电层结构,使胶粒保持相对稳定.催化剂各组分较佳配比对应稳定胶粒的形成;它具有颗粒小、均匀、较高的催化活性.催化体系加入丁二烯引起电导率下降表明活性中心是正离子性的.
The effects of single component and multiple components of iron-based colloidal catalyst [Fe (naph) 2Al (iBu) 3-CH2CHCH2Cl] mixed in different proportions on the hydrogenation gasoline medium at 25 ℃ were studied. The conductivity and concentration The results show that Al (i-Bu) 3 exists as an association state and dissociates into ion pairs in combination with the Tyndal effect and the polymerization results. Its interaction with ferrous naphthenate is the main reaction for the formation of gel nuclei, and Allylchloride produced by the reaction of allyl chloride in the core surface to participate in the formation of the active center; by excessive Al (i Bu) 3 ion pair formed by the electric double layer structure, the rubber particles remain relatively stable. The best ratio of each component of the catalyst corresponds to the formation of stable micelles; it has small, uniform and high catalytic activity. The addition of butadiene to the catalytic system causes a decrease in conductivity indicating that the active site is cationic.