Supported non-metallocene catalyst as well as preparation method and application thereof
A non-metallocene, supported technology, applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of high cost of silica gel and complicated treatment process
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[0080] According to the present invention, it relates to a preparation method of a supported non-metallocene catalyst, comprising the following steps: dissolving a magnesium compound and a non-metallocene complex in a solvent to obtain a magnesium compound solution; The step of adding a precipitating agent to obtain the supported non-metallocene catalyst.
[0081] The steps for obtaining the magnesium compound solution are specifically described below.
[0082] Specifically, the magnesium compound (solid) and the non-metallocene complex are dissolved in an appropriate solvent (ie, a solvent for dissolving the magnesium compound), thereby obtaining the magnesium compound solution.
[0083] As the solvent, for example, C 6-12 Aromatic hydrocarbons, halogenated C 6-12 Solvents such as aromatic hydrocarbons, esters and ethers. Specific examples include toluene, xylene, mesitylene, ethylbenzene, diethylbenzene, chlorotoluene, chloroethylbenzene, bromotoluene, bromoethylbenzene, ...
Embodiment 1
[0220] Anhydrous magnesium chloride is used for the magnesium compound, and tetrahydrofuran is used as a solvent for dissolving the magnesium compound and the non-metallocene complex. The non-metallocene complex adopts the structure compound of.
[0221] Weigh 5g of anhydrous magnesium chloride and non-metallocene complexes, add tetrahydrofuran solvent and dissolve completely at room temperature, stir for 2 hours, add precipitant hexane to make it precipitate, filter, wash 2 times, the amount of precipitant each time is the same as that added before The same amount was uniformly heated to 90° C. and vacuum-dried to obtain a supported non-metallocene catalyst.
[0222] Wherein the proportioning is that the proportioning of magnesium chloride and tetrahydrofuran is 1mol: 210ml; the molar ratio of magnesium chloride and non-metallocene complex is 1: 0.08; the volume proportioning of precipitating agent and tetrahydrofuran is 1: 1;
[0223] Supported non-metallocene catalysts a...
Embodiment 2
[0225] Basically the same as Example 1, but with the following changes:
[0226] Non-metallocene complexes using The solvent for dissolving the magnesium compound and the non-metallocene complex was changed to toluene, and the precipitating agent was changed to cyclohexane.
[0227] Wherein the ratio is, the ratio of magnesium compound to toluene is 1mol: 150ml; the molar ratio of magnesium compound to non-metallocene complex is 1: 0.15; the volume ratio of precipitant to dissolved magnesium compound and non-metallocene complex is 1 : 2.
[0228] Supported non-metallocene catalysts are designated CAT-2.
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