Supported non-metallocene catalyst, its preparation method and application
A non-metallocene and non-metallocene ligand technology, applied in the field of non-metallocene catalysts, can solve the problems of difficult control of polymer morphology, difficult to control the carrier forming process and particle morphology, and achieve the effect of simple preparation method
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0087] The present invention relates to a method for preparing a supported non-metallocene catalyst, which includes the following steps: reacting a Grignard reagent with a halogenated reagent to obtain a magnesium-based carrier; combining a chemical treatment agent selected from group IVB metal compounds with the The step of reacting the magnesium-based carrier to obtain a modified magnesium-based carrier; contacting the non-metallocene ligand with the modified magnesium-based carrier in the presence of a solvent to obtain a mixed slurry; and directly drying the mixed slurry to obtain the Supported non-metallocene catalyst steps.
[0088] According to the present invention, a magnesium-based carrier (also called nascent magnesium halide) is obtained by reacting a Grignard reagent with a halogenating reagent.
[0089] The Grignard reagent will be specifically described below.
[0090] According to the present invention, as the Grignard reagent, for example, at least one selected from...
Embodiment 1
[0293] The Grignard reagent uses methyl magnesium chloride (MeMgCl), the solvent for dissolving the Grignard reagent uses tetrahydrofuran, the halogenated reagent uses chloro-n-butane, the chemical treatment agent uses titanium tetrachloride, and the non-metallocene ligand uses the structure The second solvent is dichloromethane.
[0294] Add 0.1 mol of the halogenated reagent dropwise to the Grignard reagent solution at room temperature for 30 minutes, and stir for 2 hours at room temperature after the drop. Filter, wash with hexane twice, using 60 ml of hexane each time, and dry under vacuum at room temperature to obtain a magnesium-based carrier.
[0295] Then 60ml of hexane was added to the magnesium-based carrier, and the chemical treatment agent was added dropwise for 30 minutes under stirring at room temperature. The reaction was stirred at 60°C for 4 hours, filtered, and washed with hexane twice, each time with hexane. The dosage is 60ml, and the modified magnesium-based c...
Embodiment 2
[0300] It is basically the same as embodiment 1, but has the following changes:
[0301] The Grignard reagent is ethyl magnesium chloride (EtMgCl), the solvent for dissolving the Grignard reagent is ether, the halogenated reagent is chloro-n-butane, and the non-metallocene ligand is used. The chemical treatment agent uses zirconium tetrachloride (ZrCl 4 ), the second solvent is chloroform.
[0302] Wherein the ratio is that the ratio of the Grignard reagent and the solvent for dissolving the Grignard reagent in terms of Mg element is 1mol:1000mL, the molar ratio of the Grignard reagent to the halogenated reagent is 1:2; The molar ratio of the metal ligand is 1:0.1; the molar ratio of the Grignard reagent to the chemical treatment agent is 1:0.20; the ratio of the non-metallocene ligand to the second solvent is 0.15 g / ml.
[0303] The supported non-metallocene catalyst is referred to as CAT-2.
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More