高等学校化学学报 ›› 1984, Vol. 5 ›› Issue (4): 585.

• 论文 • 上一篇    下一篇

有机镁化合物提高乙烯聚合催化效率的作用

王海华, 张启兴, 许家瑞, 陆耘, 林尚安   

  1. 中山大学高分子研究所
  • 收稿日期:1983-01-28 出版日期:1984-10-24 发布日期:1984-10-24

Organomagnesium Compounds as Promoters for Increasing the Catalytic Efficiency in the Polymerization of Ethylene

Wang Haihua, Zhang Qixing, Xu JiaruiLu Yun, Lin Shangan   

  1. Institute of Polymer Science, Zhongshan University, Guangzhou
  • Received:1983-01-28 Online:1984-10-24 Published:1984-10-24

摘要: 本文报导了有机镁化合物能促进提高几种钛系载体催化剂的乙烯聚合催化效率,载体MgCl2含量增加,这种促进作用增大.认为有机镁具有促使载体疏松化和改变催化活性中心Ti的配位基电效应等作用.

Abstract: The action of organomagnesium compounds on promoting the catalytic efficiency of the highly active catalyst of Ti system with MgCl3 as carrier for polymerization of ethylene has been studied. It was found that the promotive effect increases with the content of MgCl3 in the composited carrier. The scanning electron micrographs of several MgCl, supported catalysts before and after treatment with organomagnesium compound show that morphology of the treated catalyst displays globular micrograin cluster which is finer and more porous than that of the untreated one. It has been suggested that the promotive action given by organomagnesium compounds includes raising porosity of the carrier, as well as electronic effect of the modifying ligand's towards the active center Ti+3.

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