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Olefin polymerization catalyst spherical component, preparation method and applications thereof, olefin polymerization catalyst and applications thereof, and olefin polymerization method

A technology of olefin polymerization and catalyst, applied in the field of spherical catalyst components for olefin polymerization, can solve the problems of low polymer bulk density and isotacticity, no industrial application value, low activity, etc., and achieve high bulk density and isotacticity High degree, saving production cost, high activity effect

Active Publication Date: 2018-04-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

By applying this method, spherical particles below 100 microns can be obtained, the surface shape is smooth and the particle shape is good, but when used for olefin polymerization, the activity is not high, the bulk density and isotacticity of the obtained polymer are low, and there is no industrial application value

Method used

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  • Olefin polymerization catalyst spherical component, preparation method and applications thereof, olefin polymerization catalyst and applications thereof, and olefin polymerization method

Examples

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preparation example Construction

[0030] On the one hand, the invention provides a kind of preparation method for the spherical catalyst component of olefin polymerization, the method comprises:

[0031] (1) In the presence of an inert solvent, the titanium compound, alkoxymagnesium, cyclic ether compound and alcohol compound are first contacted to obtain a uniform solution;

[0032] (2) second contacting the homogeneous solution obtained in step (1) with the titanium compound to precipitate a solid;

[0033] (3) In the presence of an inert solvent, conduct the third contact with the product obtained in step (2) with the titanium compound and the internal electron donor at a temperature of 120-150° C. to obtain a suspension containing the catalyst component.

[0034] According to the preparation method of the present invention, wherein, the amount of each raw material used to prepare the spherical catalyst component can be a conventional amount in the art, but under preferred conditions, the amount of alcohol ...

preparation example 1

[0081] This preparation example is used to illustrate the catalyst component provided by the invention and its preparation method

[0082] In the reaction kettle that has been repeatedly replaced by high-purity nitrogen, 5.8 grams of anhydrous magnesium ethylate, 140 milliliters of toluene, 3 milliliters of titanium tetrachloride, 9.6 milliliters of tetrahydrofuran, and 9.2 milliliters of butanol were added successively, at a temperature of 60 ° C. React for 2 hours, cool down to 10°C at a rate of 2°C / min, add 5 ml of titanium tetrachloride dropwise, then raise the temperature to 93°C at a rate of 0.5°C / min, keep the temperature constant for one hour, filter off the mother liquor, and wash with toluene for 2 time, then add 48 milliliters of titanium tetrachloride, 72 milliliters of chlorobenzene, keep the temperature at 130 ° C for 1 hour, add 48 milliliters of titanium tetrachloride, 72 milliliters of chlorobenzene, di-n-butyl phthalate (DNBP) 2.1 ml, kept at 130° C. for 1.5 ...

preparation example 2

[0084] This preparation example is used to illustrate the catalyst component provided by the invention and its preparation method

[0085] In the reaction kettle that has been repeatedly replaced by high-purity nitrogen, 5.8 grams of anhydrous butoxymagnesium, 176 milliliters of toluene, 3 milliliters of titanium tetrachloride, 9.6 milliliters of tetrahydrofuran, and 9.2 milliliters of amyl alcohol were added successively. , react for 2 hours, cool down to 20°C at a rate of 1°C / min, add 5 ml of titanium tetrachloride dropwise, then raise the temperature to 85°C at a rate of 0.3°C / min, keep the temperature for one hour, and then add titanium tetrachloride 48 ml, 72 ml of chlorobenzene, kept at 140°C for 1 hour, then added 48 ml of titanium tetrachloride, 72 ml of chlorobenzene, 2.1 ml of di-n-butyl phthalate (DNBP), kept at 120°C for 1.5 hours, filtered and washed 5 times with hexane, and the remaining solid product was vacuum-dried to obtain a solid titanium catalyst component...

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Abstract

The present invention relates to the field of catalysts for olefin polymerization, and discloses an olefin polymerization catalyst spherical component, a preparation method and applications thereof, an olefin polymerization catalyst and applications thereof, and an olefin polymerization method, specifically a preparation method of a spherical catalyst component for olefin polymerization, the spherical catalyst component used for olefin polymerization and obtained through the preparation method, a catalyst for olefin polymerization, applications of the spherical catalyst component and the catalyst in olefin polymerization reactions, and an olefin polymerization method using the catalyst system for olefin polymerization. According to the present invention, with the application of the methodto prepare the spherical catalyst component for the olefin polymerization reaction, the complicated equipment is not required, the process is simple, the production cost can be substantially saved, and the activity of the catalyst component of the present invention is higher than the activity of the spherical catalyst component prepared in the prior art; and with the application of the prepared catalyst system in the olefin polymerization reaction, the olefin polymerization obtained through the catalysis has high bulk density and high isotacticity.

Description

technical field [0001] The invention relates to the field of catalysts for olefin polymerization, in particular, to a method for preparing a spherical catalyst component for olefin polymerization, and the spherical catalyst component for olefin polymerization obtained by the method; and for olefins Catalysts for polymerization and their use in olefin polymerization; and a process for olefin polymerization using the catalyst system for olefin polymerization of the present invention. Background technique [0002] The currently disclosed methods for preparing solid titanium catalyst components for olefin polymerization are divided into two categories, one is supported catalyst, that is, an active component containing titanium is supported on a carrier of a certain shape, and the main raw material used for the carrier is generally magnesium chloride or silica gel. The shape is mostly spherical, such as the methods disclosed in patents such as US4399054 and EP-B-65700; the other ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F10/00C08F110/06C08F4/658C08F4/651C08F4/649
CPCC08F4/6494C08F4/651C08F4/6585C08F10/00C08F110/06C08F2500/18C08F2500/15
Inventor 郭正阳刘萃莲雷世龙王迎
Owner CHINA PETROLEUM & CHEM CORP
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