C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 4/64 (2006.01) C08F 10/00 (2006.01)
Patent
CA 2539111
The present invention relates to catalyst components and catalysts for olefinic polymerization. Magnesium chloride and silica are used in the catalyst components as composite carriers, and the catalyst components's granular form can be improved by adjusting the ratio of magnesium chloride and silica. Moreover, it would be to stabilize the polymerization reaction rate of the catalysts and improve the granule form of the polymers with the combination of the catalyst carriers, in order to adapt to the requirements of different polymerization processes on the catalyst performances. Meanwhile, the said catalysts possess higher polymerization activity and higher stereoregularity when used for propylene polymerization.
L'invention concerne des composants catalyseurs et des catalyseurs pour polymérisation oléfinique. On utilise dans ces composants du chlorure de magnésium et de la silice comme vecteurs composites, et on peut améliorer la forme granulaire des composants en ajustant le rapport du chlorure de magnésium et de la silice. On peut également envisager de stabiliser le taux de réaction de polymérisation des catalyseurs et d'améliorer la forme granulaire des polymères par une combinaison des vecteurs catalyseurs, en fonction des besoins propres aux différents processus de polymérisation, relativement aux performances catalytiques. Les catalyseurs considérés ont une activité de polymérisation et une stéréorégularité supérieures quand on les utilise pour la polymérisation de propylène.
Chen Wei
Du Hongbin
Guo Lei
Guo Zifang
Ji Weimin
Beijing Research Institute Of Chemical Industry China Petroleum & Chemi Cal Corporation
China Petroleum & Chemical Corporation
Robic
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