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Catalyst component used for olefin polymerization and catalyst used for olefin polymerization and application

A technology of olefin polymerization and catalyst, which is applied in the application field of catalyst in olefin polymerization reaction, can solve problems such as high melt mass flow rate, product separation problems, and overshooting, and achieve low melt mass flow rate and high polymerization activity , the effect of low isotactic index

Active Publication Date: 2016-03-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Those skilled in the art know that the use of metallocene catalysts will increase the cost of polypropylene resins, and most of the catalysts are homogeneous catalysts, and there are also problems in the separation of products.
[0009] In addition, the melt mass flow rate is one of the most important quality indicators in polypropylene products. However, the polypropylene prepared by using the catalyst in the above patent exceeds the measurable range of the instrument due to its excessive melt mass flow rate. , so none of them can provide the melt mass flow rate data of the polymer

Method used

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  • Catalyst component used for olefin polymerization and catalyst used for olefin polymerization and application
  • Catalyst component used for olefin polymerization and catalyst used for olefin polymerization and application
  • Catalyst component used for olefin polymerization and catalyst used for olefin polymerization and application

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preparation example Construction

[0068] According to the present invention, the above-mentioned preparation method for the catalyst component of olefin polymerization comprises the following steps:

[0069] (1) Carrying out the first contact reaction between the oxirane compound shown in formula (4) and the titanium compound, the conditions of the first contact reaction include: the reaction temperature is -30°C to 50°C, the reaction time 2-30min;

[0070] (2) The magnesium compound shown in formula (1), formula (2) or formula (3) is carried out the second contact reaction with the product that step (1) obtains, and in described magnesium compound and the product that step (1) obtains Adding an internal electron donor in one or more time periods before, during and after the second contact reaction of the product,

[0071] (R 1 O) m MgT n Formula (1), MgX k (R 4 Oh) p (H 2 O) q Formula (2),

[0072] (R 5 O)Mg(OR 6 ) formula (3), Formula (4),

[0073] Among them, T is

[0074] R 1 and R 4 th...

preparation example 1

[0147] This preparation example is used to illustrate the catalyst component for olefin polymerization provided by the present invention and its preparation method.

[0148] (1) In a 1.6L reactor, add 200mL No. 5 white oil (Sigma-Aldrich Company), 8.0g (0.084mol) anhydrous magnesium chloride, 6g surfactant span80 (Sigma-Aldrich Company), 100mL (1.70mol ) ethanol, under stirring, the temperature was raised to 90°C. After reacting at constant temperature for 1 hour, the resulting mixture was stirred and dispersed for 30 minutes for emulsification. And add 25mL (0.32mol) epichlorohydrin in the obtained emulsification product, maintain temperature reaction 0.5 hour, carry out pressure filtration then, filter off liquid, wash 5 times with hexane, vacuum-dry, obtain magnesium compound A1, through infrared spectrum Law and 1 H-NMR method measures, magnesium compound A1 structural formula is as follows formula (9) expression (R 1 is ethyl, R 2 for hydrogen, R 3 is chloromethyl, X...

preparation example 2

[0152] This preparation example is used to illustrate the catalyst component for olefin polymerization provided by the present invention and its preparation method.

[0153] (1) The magnesium-containing compound is prepared according to the disclosed method of Example 1 in CN1718595A, specifically as follows:

[0154] In a stirred 150L reactor, 10kg (105mol) of magnesium chloride and 12.6kg (273mol) of ethanol were added into 60L of white oil with a viscosity of 30 centipoise (20°C) and reacted at 125°C for 2 hours. Then transfer the mixture of molten adduct and white oil to the medium of methyl silicone oil which has been preheated to 125°C; the viscosity of methyl silicone oil is 300 centipoise (20°C), and the amount of methyl silicone oil is 120L ; Stir at a speed of 200 rpm for 10-30 minutes to obtain a mixed solution. Introduce the mixed solution into a high-gravity rotating bed for dispersion, and introduce the dispersed mixed solution into a hexane medium that has been...

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Abstract

The present invention discloses a catalyst component used for olefin polymerization and a catalyst used for the olefin polymerization and application. The catalyst component comprises the following reaction products: 1, a magnesium compound shown as a formula (1), (2) or (3); 2, at least one titanium compound; 3, at least one internal electron donor and 4, an oxirane compound shown as a formula (4). The catalyst used for the olefin polymerization can be used for preparation of low isotactic index and low melt flow rate olefin polymers and has higher activity. The formula (1), the formula (2) and the formula (3) are as follows: (1) (R1O)mMgTn, (2) MgXk(R4OH)p(H2O)q, (3)(R5O)Mg(OR6) and the formula (4) as shown in the specification.

Description

technical field [0001] The present invention relates to a catalyst component for olefin polymerization, a catalyst for olefin polymerization comprising the catalyst component, and the application of the catalyst for olefin polymerization in olefin polymerization. Background technique [0002] As we all know, according to the three-dimensional structure of the methyl side chain in the polymer chain, polypropylene homopolymer can be divided into isotactic polypropylene, syndiotactic polypropylene and random polypropylene, among which isotactic polypropylene has been widely used application. Atactic polypropylene is also widely used in waterproofing membranes made of modified petroleum asphalt because of its good adhesion, excellent hydrophobicity, chemical resistance, electrical insulation, adhesion and good compatibility. Adhesives, made of self-adhesive films, vacuum grease tackifiers, lubricant modifiers, anti-oil mist additives for lubricants, printing ink additives, meta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F10/00C08F4/649C08F4/645C08F4/651C08F10/06
Inventor 凌永泰夏先知刘月祥李威莅赵瑾高富堂张纪贵谭扬彭人琪高平张天一张志会
Owner CHINA PETROLEUM & CHEM CORP
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