Effect of preparation conditions on the performance of Ziegler-Natta catalyst
The core key of polyolefin technology is the catalyst,and the preparation conditions of the catalyst have a significant impact on its performance.The main factors affecting the performance of Ziegler Natta(Z-N)polyolefin catalysts are investigated,including the transfer time of the mother liquor,the molar ratio of TiCl4 to MgCl2,the molar ratio of internal electron donors(ID)to MgCl2 substances and the aging reaction temperature.The results show that the transfer time of the mother liquor,the stirring speed of the titanium loading process and the molar ratio of TiCl4 to MgCl2 have a significant impact on the average particle size of the catalyst.The molar ratio of ID to MgCl2 has a significant impact on the particle morphology and catalytic activity of the catalyst.The aging reaction temperature has a significant impact on the titanium content and catalytic activity.
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