Catalyst component for olefin polymerization, preparation method of catalyst component, catalyst for olefin polymerization and olefin polymerization method

A technology of olefin polymerization and catalyst, which is applied in the field of olefin polymerization, can solve problems such as the complexity of the catalyst process, and achieve good economic benefits, improved morphology, and good hydrogen adjustment performance

Active Publication Date: 2019-03-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a catalyst component for olefin polymerization and a preparation method thereof as well as a catalyst for olefin polymerization and an olefin polymerization method in order to overcome the complex problem of preparing the catalyst in the prior art

Method used

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  • Catalyst component for olefin polymerization, preparation method of catalyst component, catalyst for olefin polymerization and olefin polymerization method
  • Catalyst component for olefin polymerization, preparation method of catalyst component, catalyst for olefin polymerization and olefin polymerization method
  • Catalyst component for olefin polymerization, preparation method of catalyst component, catalyst for olefin polymerization and olefin polymerization method

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preparation example Construction

[0020] One aspect of the present invention provides a method for preparing a catalyst component for olefin polymerization, wherein the preparation method comprises:

[0021] (1) the general formula is the magnesium halide of MgXY and the general formula is R 1 The alcohol compound of OH is mixed and emulsified, and the obtained emulsion is contacted and reacted with the oxirane compound shown in formula (1), and then solid-liquid separation is carried out;

[0022]

[0023] Wherein, in the general formula MgXY, X is halogen, Y is halogen, C 1 -C 14 Alkyl, C 6 -C 14 Aryl, C 1 -C 14 alkoxy or C 6 -C 14 The aryloxy group; general formula R 1 OH, R 1 for C 1 -C 8 Alkyl or C 3 -C 8 Cycloalkyl; formula (1), R 2 and R 3 each independently hydrogen, C 1 -C 5 Alkyl or haloalkyl;

[0024] (2) The solid phase obtained by solid-liquid separation is directly mixed with an inert solvent without washing, and the temperature of the resulting mixture is adjusted to -50°C t...

preparation example 1

[0064]In a 0.6L reactor, add 0.08mol magnesium chloride and 0.96mol ethanol, raise the temperature to 80°C under stirring, and react at constant temperature for 2 hours. Add 0.48mol (38ml) of epichlorohydrin, and press filter after half an hour of reaction. After the press filter product is directly mixed with 200mL hexane, cool down to -30°C, add 150mL (1.35mol) of titanium tetrachloride, and Stir at -30°C for 30min, then slowly heat up to 110°C, add 1.5mL of diisobutyl phthalate during the temperature rise, maintain at 110°C for 30min, then filter off the liquid. The obtained solid was washed twice with titanium tetrachloride and three times with hexane, and dried to obtain catalyst component C1 for olefin polymerization.

[0065] The catalyst component C1 for olefin polymerization was observed by an optical microscope, and it was not substantially broken.

preparation example 2

[0067] In a 0.6L reactor, add 0.08mol magnesium chloride and 1.6mol ethanol, raise the temperature to 90°C under stirring, and react at constant temperature for 3 hours. Add 0.32 mol of epichlorohydrin, react for half an hour, press filter, mix the press filter product with 100mL hexane directly, cool down to -20°C, add 145mL of titanium tetrachloride, and stir at -20°C for 30min, Then began to slowly raise the temperature to 120°C, and added 1.3mL of diisobutyl phthalate during the heating process, maintained at 120°C for 40min, and then filtered off the liquid. The obtained solid was washed twice with titanium tetrachloride and three times with hexane, and dried to obtain catalyst component C2 for olefin polymerization.

[0068] The catalyst component C2 for olefin polymerization was observed with an optical microscope, and it was not substantially broken.

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Abstract

The invention relates to the field of olefin polymerization and discloses a catalyst component for olefin polymerization, a preparation method of the catalyst component, a catalyst for olefin polymerization and an olefin polymerization method. The method comprises the following steps: (1) magnesium halide with the general formula of MgXY and an alcohol compound with the general formula of R1OH aremixed and emulsified, obtained emulsion is subjected to a contact reaction with an ethylene oxide compound shown as formula (I) in the description, and solid-liquid separation is performed, wherein Xis halogen, Y is halogen, C1-C14 alkyl, C6-C14 aryl, C1-C14 alkoxy or C6-C14 aryloxy; R1 is C1-C8 alkyl or C1-C8 naphthenic group; R2 and R3 are hydrogen, C1-C5 alkyl or haloalkyl independently; (2)a solid phase obtained by solid-liquid separation is directly mixed with an inert solvent without washing, and temperature of the obtained mixture is adjusted to subzero 50 DEG C-10 DEG C; (3) the mixture obtained in step (2) is subjected to a contact reaction with a titanium compound and an optional internal electron donor compound. The prepared catalyst component has high catalytic activity andbetter hydrogen response sensitivity.

Description

technical field [0001] The present invention relates to the field of olefin polymerization, in particular to a method for preparing a catalyst component for olefin polymerization, and the catalyst component for olefin polymerization obtained by the preparation method, containing the catalyst group for olefin polymerization Catalysts and Olefin Polymerization Processes for Olefin Polymerization. Background technique [0002] It is well known that the performance of Ziegler-Natta catalysts supported by magnesium chloride is significantly better than catalysts supported by other supports when used in propylene polymerization. Therefore, most catalysts for olefin polymerization are supported by titanium halide on activated magnesium chloride. Spherical magnesium chloride can be prepared as a spherical catalyst, which has good fluidity and is widely used. For example, in patents WO99 / 44009 and US4399054, etc., the spherical carrier is prepared by emulsifying the magnesium chlor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F10/00C08F110/06C08F4/02C08F4/646
CPCC08F10/00C08F110/06C08F4/022C08F4/6465C08F2500/15C08F2500/12
Inventor 夏先知凌永泰刘月祥任春红赵瑾李威莅彭人琪高富堂谭扬陈龙张天一
Owner CHINA PETROLEUM & CHEM CORP
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