Catalyst component used for olefin polymerization and preparation method thereof as well as catalyst used for olefin polymerization and application

A technology of olefin polymerization and catalyst, which is applied in the field of catalyst components, can solve the problems of inert dispersion medium increasing solvent recovery cost and reducing carrier single-pot yield, etc., achieving good particle shape, increasing single-pot yield, and reducing recovery cost Effect

Active Publication Date: 2015-04-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the technical solutions disclosed by them reduce the raw material cost of carrier preparation and simplify the carrier preparation process, due to the need to use a large amount of inert dispersion medium in the carrier preparation process, the single-pot yield of the carrier is reduced, and the inert dispersion medium Recycling increases the cost of solvent recovery; in addition, the stereoregularity of the polymer obtained in the olefin polymerization process using the olefin polymerization catalyst supported by the patent application needs to be further improved

Method used

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  • Catalyst component used for olefin polymerization and preparation method thereof as well as catalyst used for olefin polymerization and application
  • Catalyst component used for olefin polymerization and preparation method thereof as well as catalyst used for olefin polymerization and application
  • Catalyst component used for olefin polymerization and preparation method thereof as well as catalyst used for olefin polymerization and application

Examples

Experimental program
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preparation example Construction

[0078] The present invention also provides the above-mentioned preparation method for the catalyst component of olefin polymerization, and this method comprises the following steps:

[0079] (1) Preparation of solid components, the process including:

[0080] (a) In a closed container, in the presence of at least one polymer dispersion stabilizer, magnesium halide MgX 2 and organic alcohol R 1 The mixture of OH reacts at 30-160°C to form a magnesium halide alcoholate solution;

[0081](b) reacting the magnesium halide alcoholate solution with the alkylene oxide compound represented by formula (2) at 30-160°C to generate a solid component;

[0082] Among them, X is a halogen, R 1 for C 1 -C 12 straight-chain or branched-chain alkyl;

[0083]

[0084] Among them, R 2 and R 3 same or different, each independently hydrogen or C 1 -C 5 A linear or branched alkyl group, wherein the hydrogen on the alkyl group is optionally substituted by halogen;

[0085] Wherein, in t...

preparation example 1-17

[0129] In a 500mL airtight reactor, sequentially add magnesium chloride, organic alcohol (R 1 OH) and polymer dispersion stabilizer, heated up to the reaction temperature (T) under stirring, and after constant temperature reaction for 1 hour, added alkylene oxide compound (E), maintained the temperature for 0.5 hour reaction, filtered off the liquid, and washed with hexane 5 times, vacuum drying to obtain solid component particles, the specific preparation conditions are shown in Table 1, so as to prepare spherical solid components A1-A17 respectively, wherein, the average particle diameter (D50) and particle diameter of these solid components are respectively The distribution value (SPAN) is shown in Table 1, the solid component A1 1 H-NMR spectrum as figure 1 Shown, the solid component A2's 1 H-NMR spectrum as figure 2 Shown, the solid component A13's 1 H-NMR spectrum as image 3 Shown, the solid component A15's 1 H-NMR spectrum as Figure 4 As shown, the optical mic...

Embodiment 1

[0164] This example is used to illustrate the catalyst component for olefin polymerization and its preparation method, catalyst for olefin polymerization and application of the present invention.

[0165] (1) Preparation of catalyst components

[0166] Into a 300mL glass reaction bottle, add 100ml of titanium tetrachloride successively, cool to -20°C, add 8g of the solid component A1 prepared in Preparation Example 1 above, and heat up to 110°C. Add 1.5ml (6mmol) of diisobutyl phthalate (DIBP) during the heating process, filter off the liquid, wash twice with titanium tetrachloride, wash three times with hexane, and obtain the solid catalyst component Cat -1.

[0167] (2) Propylene liquid phase bulk polymerization

[0168] The liquid-phase bulk polymerization of propylene was carried out in a 5L stainless steel autoclave. Under the protection of nitrogen, add 5ml triethylaluminum hexane solution (concentration: 0.5mmol / ml) and 1ml cyclohexylmethyldimethoxysilane (CHMMS) hex...

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Abstract

The invention relates to a catalyst component used for olefin polymerization and a preparation method thereof as well as a catalyst used for olefin polymerization and application. The catalyst component comprises reaction products of the following components: (1) a solid component and (2) at least one titanium compound, wherein the solid component comprises a magnesium compound shown in Formula (1) (shown in the description) and epoxy alkanes compounds shown in Formula (2) (shown in the description); R1 is linear alkyls or branched alkyls with C1-C12; R2 is the same as or different from R3; R2 and R3 are hydrogen, or linear alkyls or branched alkyls with C1-C5 independently; hydrogen on alkyls is optionally replaced by halogen; X is halogen, m ranges from 0.1 to 1.9, n ranges from 0.1 to 1.9, and m plus n is equal to 2. By adopting the catalyst component in the process of olefin polymerization, relatively high polymerization activity and relatively high stereotactic capability can be acquired.

Description

technical field [0001] The present invention relates to a catalyst component for olefin polymerization, a method for preparing the catalyst component, a catalyst component for olefin polymerization prepared by the method, a catalyst for olefin polymerization comprising the catalyst component, and The application of the catalyst for olefin polymerization in olefin polymerization reaction. Background technique [0002] Catalysts for olefin polymerization are mostly prepared by loading titanium halides on activated anhydrous magnesium chloride. Among them, a common method used to prepare active magnesium chloride is to anhydrous MgCl 2 React with alcohol to form the general formula MgCl 2 mROH nH 2 Magnesium chloride-alcohol adduct of O, and then use this adduct to support titanium halide to prepare solid component of olefin polymerization catalyst. Such alcoholates can be prepared by methods such as spray drying, spray cooling, high-pressure extrusion or high-speed stirrin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F10/00C08F4/649C08F4/658C08F4/654C08F4/651
Inventor 李威莅夏先知刘月祥凌永泰赵瑾张纪贵高富堂高平谭扬彭人琪张志会林洁段瑞林马长友
Owner CHINA PETROLEUM & CHEM CORP
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