首页> 外文期刊>Journal of Applied Polymer Science >The second life of Ziegler catalyst. Ethylene polymerization reactions with TiCl4-Al[C2H5](2)Cl/Mg(C4H9)(2) catalyst
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The second life of Ziegler catalyst. Ethylene polymerization reactions with TiCl4-Al[C2H5](2)Cl/Mg(C4H9)(2) catalyst

机译:齐格勒催化剂的第二寿命。 乙烯聚合反应与TiCl4-Al [C 2 H 5](2)Cl / Mg(C4H9)(2)催化剂

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摘要

The Ziegler catalyst, a combination of TiCl4 and Al(C2H5)(2)Cl, was widely used since 1950s for the commercial manufacture of linear polyethylene. We found that addition of Mg(C4H9)(2) to this catalyst at [Al]:[Mg](molar) 2 leads to the formation of a very active catalyst system for homopolymerization of ethylene and for copolymerization of ethylene and 1-alkenes. The principal advantages of the ternary TiCl4-Al(C2H5)(2)Cl/Mg(C4H9)(2) catalyst are very high activity (six to seven times higher than the activity of the original Ziegler catalyst), low cost, and the ease of use: the catalyst is prepared in situ from three commercially available cheap compounds soluble in aliphatic and aromatic hydrocarbons. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47340.
机译:自20世纪50年代以来,Ziegler催化剂,TiCl4和Al(C 2 H 5)(2)Cl的组合用于线性聚乙烯的商业制造。 我们发现在[Al]:[Mg](摩尔)&gt中加入该催化剂的Mg(C 4H9)(2)。 2导致形成乙烯和1-烯烃的均聚和共聚的非常活泼的催化剂体系。 三元TiCl4-Al(C 2 H 5)(2)Cl / Mg(C 4 H 9)(2)催化剂的主要优点是非常高的活性(比原始Ziegler催化剂的活性高6倍),成本低,成本低 易用性:催化剂原位制于三种可溶于脂族和芳烃的可溶于三种商业上可获得的廉价化合物。 (c)2018 Wiley期刊,Inc.J.Phill。 聚合物。 SCI。 2019,136,47340。

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