Catalyst component for olefin polymerization and use thereof and catalyst for olefin polymerization and use thereof and olefin polymerization method
An olefin polymerization and catalyst technology, applied in the field of catalyst components, can solve the problems of carrier adhesion, unstable preparation process, poor carrier molding effect, etc., and achieve the effect of increasing bulk density
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[0047] According to a preferred embodiment of the present invention, the average particle diameter of the olefin polymerization catalyst carrier may be 10-100 microns, preferably 40-60 microns; the particle size distribution is less than 1.2, preferably 0.6-0.8. In this preferred embodiment, the catalyst prepared from the olefin polymerization catalyst support is capable of yielding olefin polymers with higher bulk density. In the present invention, the average particle diameter and particle size distribution of the olefin polymerization catalyst carrier can be measured by using a MasterSizer 2000 laser particle size analyzer (manufactured by Malvern Instruments Ltd).
[0048] According to the present invention, the water contained in the carrier of the olefin polymerization catalyst comes from the trace amount of water carried by the synthesis raw materials and the reaction medium.
[0049]In the present invention, the titanium compound may be various titanium compounds conve...
preparation example 1
[0086] This preparation example is used to illustrate the olefin polymerization catalyst carrier provided by the present invention and its preparation method.
[0087] In a 1.6L reactor, add 200mL white oil, 8.0g (0.08mol) magnesium chloride, 3g (0.01mol) octadecyl alcohol, 95mL (1.6mol) ethanol, 9.8mL (0.08mol) 2,2-dimethoxy base propane, heated to 90°C with stirring. After reacting at a constant temperature for 1 hour, the mixture was stirred at a low speed (400 rpm) to disperse for 30 minutes for emulsification. Add 35 mL (0.45 mol) of epichlorohydrin to the emulsified product above, react for half an hour and press filter for 9 minutes. The press-filtered product was washed 5 times with hexane, and press-filtered after each wash. The total time of the press-filtering process was 20 minutes. Finally, the product was vacuum-dried to obtain the olefin polymerization catalyst carrier Z1.
[0088] The average particle diameter (D50) of the olefin polymerization catalyst carr...
preparation example 2
[0090] This preparation example is used to illustrate the olefin polymerization catalyst carrier provided by the present invention and its preparation method.
[0091] In a 1.6L reactor, add 300mL white oil, 8.0g (0.08mol) magnesium chloride, 10.8g (0.04mol) stearyl alcohol, 28mL (0.48mol) ethanol, 1mL (0.008mol) 2,2-dimethoxy base propane, heated to 100°C with stirring. After reacting at a constant temperature for 0.5 hour, the mixture was stirred at a low speed (800 rpm) to disperse for 30 minutes for emulsification. Add 12.5 mL (0.16 mol) of epichlorohydrin to the above emulsified product, react for 20 minutes, and press filter for 10 minutes. The press-filtered product was washed 5 times with hexane, and press-filtered after each wash. The total time of the press-filtering process was 25 minutes. Finally, the product was vacuum-dried to obtain the olefin polymerization catalyst carrier Z2.
[0092] The average particle diameter (D50) of the olefin polymerization catalys...
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