کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
68850 48524 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The role of aluminum species in biphasic butene dimerization catalyzed by nickel complexes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
The role of aluminum species in biphasic butene dimerization catalyzed by nickel complexes
چکیده انگلیسی

The effect of the composition of the 1-butyl-3-methyl-imidazolium organochloroaluminate ionic liquid on the activity and distribution of the products of 1-butene dimerization catalyzed by a nickel complex under biphasic conditions is described. Three classes of ionic liquids have been employed, the first one with an aluminum (AlCl3) molar fraction of 0.50, the second one with an aluminum molar fraction of 0.55 and the third one with an aluminum molar fraction of 0.65. These ionic liquids were modified with different amounts of AlEtCl2 co-catalyst. An increase in the amount of co-catalyst added to the ionic liquid increases the global activity of the system, except for an AlCl3 molar fraction of 0.50. Changing the cation from 1-butyl-3-methylimidazolium to 1-butyl-2,3-dimethylimidazolium gives rise to no modification in selectivity towards dimer products.

A systematic approach on the effects of the addition of different amounts of co-catalyst on organoaluminate ionic liquids bulk composition taking into account the interaction between the original anions and the added co-catalyst and, particularly, the effects on catalytic performance of cationic nickel complexes is evaluated. Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis A: Chemical - Volume 264, Issues 1–2, 1 March 2007, Pages 293–298
نویسندگان
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