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Catalyst carrier for olefin polymerization, catalyst for olefin polymerization and preparation methods and application of catalyst carrier and catalyst

A catalyst carrier and olefin polymerization technology, which is applied in the field of olefin polymerization, can solve the problems of poor carrier molding effect, difficult control of experimental conditions, unstable preparation results, etc., and achieve good product molding effect, reduce production costs, and increase stability. Effect

Active Publication Date: 2017-03-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the nature of high-viscosity liquid, the experimental conditions are not easy to control, the preparation result of this method is unstable, and the phenomenon of carrier adhesion is prone to occur, resulting in the disadvantage of poor carrier molding effect.

Method used

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  • Catalyst carrier for olefin polymerization, catalyst for olefin polymerization and preparation methods and application of catalyst carrier and catalyst
  • Catalyst carrier for olefin polymerization, catalyst for olefin polymerization and preparation methods and application of catalyst carrier and catalyst
  • Catalyst carrier for olefin polymerization, catalyst for olefin polymerization and preparation methods and application of catalyst carrier and catalyst

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preparation example Construction

[0031] In a first aspect, the present invention provides a method for preparing a catalyst carrier for olefin polymerization, the method comprising:

[0032] 1) the magnesium halide shown in the general formula MgXY and the general formula R 1 The alcohol compound represented by OH and the optional inert liquid medium are contacted to form an emulsion;

[0033] 2) The emulsion obtained in step 1) is contacted with the oxirane compound represented by the general formula (I) at a flow ratio of 1.5-6:1;

[0034] Wherein, in the general formula MgXY, X is chlorine or bromine, and Y is selected from chlorine, bromine, C 1 -C 14 Alkyl, C 1 -C 14 Alkoxyl, C 6 -C 14 Aryl or C 6 -C 14 A group consisting of aryloxy groups;

[0035] In general formula R 1 OH, R 1 for C 1 -C 12 Alkyl, C 3 -C 10 Cycloalkyl or C 6 -C 10 the aryl group;

[0036] The oxirane compound has a structure shown in formula (I):

[0037]

[0038] In formula (I), R 2 and R 3 each independently ...

preparation example 1

[0097] In a 0.6L reactor, add 0.08mol magnesium chloride and 1.7mol ethanol, and raise the temperature to 90°C with stirring. After 1 hour of constant temperature reaction, high-speed stirring (1800rpm) 0.5h, pressurized input pipeline, make the flow of described emulsion in described pipeline be 15mL / min, input flow from the inlet of another pipeline simultaneously is 5mL / min, temperature It is 90°C epichlorohydrin (the angle between the two pipes is 12°), and the two are mixed in the tubular area into the reaction kettle equipped with hexane. It was washed 5 times and dried in vacuum to obtain catalyst carrier Z1 for olefin polymerization.

[0098] The average particle diameter (D50) of the catalyst carrier Z1 for olefin polymerization is 70 microns, and the particle size distribution ((D90-D10) / D50) is 0.8. The particle shape of the catalyst carrier Z1 for olefin polymerization is relatively regular, the surface is smooth, basically spherical, the particle size distributio...

preparation example 2

[0103] In a 0.6L reactor, add 0.08mol magnesium chloride and 1.2mol ethanol, and raise the temperature to 65°C under stirring. After constant temperature reaction for 1 hour, stir at high speed (1800rpm) for 0.5h and then raise the temperature to 85°C, pressurize the input pipeline, so that the flow rate of the emulsion in the pipeline is 20mL / min, and at the same time, the input flow rate from the inlet of another pipeline is 5mL / min, epichlorohydrin at a temperature of 85°C (the angle between the two pipes is 12°), the two are mixed in the tubular area into the reaction kettle filled with hexane, after the delivery is completed, press filter, and press The filtered product was washed 5 times with hexane and dried in vacuum to obtain the catalyst carrier Z2 for olefin polymerization.

[0104] The average particle diameter (D50) of the catalyst carrier Z2 for olefin polymerization is 72 microns, and the particle size distribution ((D90-D10) / D50) is 0.8. The particle shape of ...

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Abstract

The invention relates to the field of olefin polymerization, and discloses a catalyst carrier for olefin polymerization, a catalyst for olefin polymerization and preparation methods and application of the catalyst carrier and the catalyst. The preparation method of the catalyst carrier for olefin polymerization comprises the steps that (1) magnesium halide shown in the general formula MgXY, an alcohol compound shown in the general formula R1OH and an optional inert liquid medium are in contact to form emulsion; and (2) the emulsion obtained in the step (1) and an ethylene oxide compound shown in the general formula (I) are subject to contact reacting according to the flow ratio being (1.5-6):1. By means of the method, the catalyst carrier which is used for olefin polymerization and is better in feature, high in yield and low in production cost can be obtained under the condition that a surface active agent is not needed.

Description

technical field [0001] The present invention relates to the field of olefin polymerization, in particular to a method for preparing a catalyst carrier for olefin polymerization and a catalyst carrier for olefin polymerization prepared by the method, a method for preparing a catalyst for olefin polymerization and a catalyst carrier prepared by the method Catalysts for olefin polymerization and their applications. Background technique [0002] It is well known that the Ziegler-Natta catalyst supported by magnesium chloride alcoholate is significantly better than catalysts supported by other supports when it is used for the polymerization of olefins (especially propylene). Therefore, most of the catalysts currently used for olefin polymerization are prepared by loading titanium halide on magnesium chloride alcoholate. In order to obtain a spherical carrier, it can be prepared by spray drying, spray cooling, high-pressure extrusion, high-speed stirring, emulsifying machine meth...

Claims

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Application Information

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IPC IPC(8): C08F10/00C08F110/06C08F4/02C08F4/649C08F4/646
Inventor 夏先知林小杰凌永泰刘月祥李威莅赵瑾任春红谭扬高富堂彭人琪张志会张天一万真马长友段瑞林
Owner CHINA PETROLEUM & CHEM CORP
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