A nano-organized ethylene oligomerization catalyst:: Characterization and reactivity of the Ni(MeCN)6(BF4)2/[Al]-MCM-41/AlEt3 system

被引：14
作者：
de Souza, Michele O.
Rodrigues, Larissa R.
Pastore, Heloise O.
Ruiz, Juan A. C.
Gengembre, Leon
Gauvin, Regis M.
de Souza, Roberto F.
机构：
[1] Univ Fed Rio Grande Sul, Inst Quim, BR-91501970 Porto Alegre, RS, Brazil
[2] Univ Estadual Campinas, Inst Quim, BR-13080970 Campinas, SP, Brazil
[3] Univ Lille 1, Lab Catalyse Lille, UMR CNRS 8010, F-59655 Villeneuve Dascq, France
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2006年 / 96卷 / 1-3期
基金：
巴西圣保罗研究基金会;
关键词：
nickel; MCM-41; XPS; ethylene; oligomerization; 1-butene;
D O I：
10.1016/j.micromeso.2006.06.023
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The complex Ni(MeCN)(6)(BF4)(2) has been immobilized on [Al]-MCM-41 (Ni/[Al]-MCM-41) and characterized by X-ray diffraction (XRD), N-2 adsorption, transmission electron microscopy (TEM), diffuse reflectance infrared spectroscopy (DRIFTS) and X-ray photoelectron spectroscopy (XPS). The heterogeneized system retains the catalytic properties of its molecular precursor: the immobilized complex associated with AlEt3 is active in heterogeneous phase ethylene oligomerization under mild reaction conditions. The AlEt3/nickel molar ratio Al/Ni has shown to be a fundamental parameter to control the selectivity of the system into 1-butene. Under typical reaction conditions, 313 K and 0.98 MPa of ethylene and Al/Ni molar ratio of 15, selectivities of ca. 84% in 1-butene have been obtained. (c) 2006 Elsevier Inc. All rights reserved.
引用
收藏
页码：109 / 114
页数：6
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