Catalyst component for ethene polymerization and catalyst
An ethylene polymerization and catalyst technology, which is applied in the field of catalyst components and catalysts, can solve the problem of insufficient catalyst activity, and achieve the effects of low oligomer content and low hexane extractives
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Embodiment 1
[0034] (1) Preparation of catalyst
[0035] Add 1.5 grams of TiCl successively to a 250ml three-neck bottle that has been purged with nitrogen 4 , 4.4 grams of anhydrous MgCl 2 , 6.1 g of trichloroethanol and 100 ml of tetrahydrofuran, heated to 65° C. under stirring, and reacted at a constant temperature at this temperature for 3 hours. Cool down to 35°C.
[0036] Add 6 grams of silica gel (Cabot Corporation TS-610, particle size 0.02 to 0.1 micron) into a 250ml three-neck bottle that has been purged with nitrogen, add the mother liquor after cooling down, keep the temperature at 35°C, and stir for 1 hour. The blended mother liquor was spray-dried with a spray dryer under the spray conditions: inlet temperature 180°C, outlet temperature 110°C, to obtain a solid catalyst component, wherein the titanium content was 2.2wt%.
[0037] (2) Ethylene slurry polymerization
[0038] Add 1 liter of hexane into the 2 liter polymerization kettle that has been purged with nitrogen, add...
Embodiment 2
[0040] (1) The preparation of the catalyst is the same as in Example 1. Only the amount of trichloroethanol was 12.2 g, and the titanium content of the resulting solid catalyst component was 2.2 wt%.
[0041] (2) Ethylene slurry polymerization is the same as in Example 1. The aggregation results are shown in Table 1.
Embodiment 3
[0043] (1) The preparation of the catalyst is the same as in Example 1. Only the amount of trichloroethanol was 15.3 g, and the titanium content of the resulting solid catalyst component was 2.3 wt%.
[0044] (2) Ethylene slurry polymerization is the same as in Example 1. The aggregation results are shown in Table 1.
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