Supported non-metallocene catalyst, preparation method and application
A non-metallocene, supported technology, applied in the field of non-metallocene catalysts, can solve the problems of complex preparation process, difficult adjustment, low catalytic ethylene polymerization activity, etc., and achieve the effect of simple preparation method
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[0104] The invention relates to a preparation method of a supported non-metallocene catalyst, comprising the following steps: dissolving a magnesium compound in a first solvent in the presence of alcohol to obtain a magnesium compound solution; making a chemical compound selected from group IVB metal compounds Dissolving the treatment agent in the precipitant to obtain a chemical treatment agent solution; adding the chemical treatment agent solution to the magnesium compound solution to obtain a modified carrier; making the non-metallocene complex and the modified carrier in the second step contacting in the presence of two solvents to obtain a mixed slurry; and directly drying the mixed slurry to obtain the supported non-metallocene catalyst.
[0105] The magnesium compound will be specifically described below.
[0106] According to the present invention, the term "magnesium compound" refers to an organic or inorganic solid anhydrous magnesium-containing compound conventional...
Embodiment 1
[0322] The magnesium compound adopts anhydrous magnesium chloride, the first solvent adopts tetrahydrofuran, the alcohol adopts butanol, the chemical treatment agent of IVB metal compound adopts titanium tetrachloride, the precipitating agent adopts hexane, and the non-metallocene complex adopts the structure The compound, the second solvent adopts dichloromethane.
[0323] Weigh 5g of anhydrous magnesium chloride, add the first solvent and alcohol, and dissolve completely at room temperature to obtain a magnesium compound solution. Dissolve the chemical treatment agent in the precipitant to obtain a chemical treatment agent solution. Drop the chemical treatment agent solution over 30 minutes. Add it to the magnesium compound solution, stir and react at 60°C for 4 hours to make it completely precipitate, filter, wash twice with the precipitating agent, each time the amount of precipitating agent is 60ml, evenly heat to 60°C and vacuum-dry to obtain the modified carrier.
[03...
Embodiment 1-1
[0328] Basically the same as Example 1, but with the following changes:
[0329] Alcohol adopts ethanol, the first solvent is changed to toluene, and the chemical treatment agent of IVB group metal compound is changed to zirconium tetrachloride (ZrCl 4 ), the precipitant was changed to cyclohexane, and the non-metallocene complexes were The second solvent was changed to toluene.
[0330] Wherein the ratio is as follows: the ratio of the magnesium compound to the first solvent is 1mol: 150ml; the molar ratio of the magnesium compound to the alcohol is 1: 1.64; the molar ratio of the magnesium compound to the non-metallocene complex is 1: 0.15; the precipitation agent and the first solvent The volume ratio is 1:2; the molar ratio of the magnesium compound to the chemical treatment agent in terms of IVB group metal elements is 1:0.20.
[0331] Supported non-metallocene catalysts are designated CAT-1-1.
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