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Olefinic polymerization and copolymerization method of supported non-metallocene catalyst

A supported catalyst, non-metallocene technology, applied in the field of heterogeneous catalysts, can solve the problems of high equipment requirements and huge investment in fixed assets, and achieve the effect of high olefin polymerization activity

Inactive Publication Date: 2006-06-21
YANGZI PETROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high-pressure process has high requirements on equipment, and the investment in fixed assets is huge

Method used

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  • Olefinic polymerization and copolymerization method of supported non-metallocene catalyst
  • Olefinic polymerization and copolymerization method of supported non-metallocene catalyst
  • Olefinic polymerization and copolymerization method of supported non-metallocene catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0118] Preparation of the supported catalyst: ES70 silica gel (product of Crosfield Company) was used for fluidization activation at a constant temperature of 650° C. for 6 h in a nitrogen atmosphere. Analytical pure magnesium chloride was calcined at 500°C for 3 hours to obtain anhydrous magnesium chloride. Under a nitrogen atmosphere (water and oxygen content are both lower than 5ppm), weigh 3 grams of anhydrous magnesium chloride, add 60ml of refined tetrahydrofuran (THF), then dropwise add 2.5ml of refined absolute ethanol, and then add 3g of heat-activated ES70 carrier , stirred and reacted at 20° C. for 18 h, washed the mixture with 30 ml×4 toluene, filtered, and finally dried in vacuum to obtain 5 g of composite carrier. Add 50ml of toluene to the composite carrier, drop 5ml of methylalumoxane (10wt% MAO in toluene) and 25ml of TiCl 4 (5v / v%TiCl 4 hexane solution), stirred at 20°C for 16 hours. Wash the mixed solution with 30ml×4 toluene, filter, and finally vacuum-d...

Embodiment 2

[0123] The preparation of supported catalyst is basically the same as in Example 1, but the non-metallocene catalyst selects the following structure:

[0124]

[0125] The cocatalyst adopts methyl aluminoxane;

[0126] The concentration of the supported catalyst is 0.01 g / L; the concentration of the co-catalyst is 0.0001 g / L;

[0127] The carrier adopts aluminum oxide;

[0128] The feeding method uses a non-metallocene catalyst and a cocatalyst to mix first, and then add it to the reactor;

[0129] Reaction solvent adopts toluene;

[0130] The reaction pressure is 0.1Mpa; the temperature is 100°C;

[0131] polymerized monomer is propylene

[0132] The reaction time was 1 hour.

Embodiment 3

[0134] The preparation of supported catalyst is basically the same as in Example 1, but the non-metallocene catalyst selects the following structure:

[0135]

[0136] Cocatalyst adopts ethyl aluminoxane;

[0137] The concentration of the supported catalyst is 1 gram / liter; the concentration of the co-catalyst is 100 grams / liter;

[0138] The carrier adopts: magnesium oxide;

[0139] The feeding method adopts non-metallocene catalyst and co-catalyst to add to the reactor respectively;

[0140] Reaction solvent adopts: heptane;

[0141] The reaction pressure is 2Mpa; the temperature is 10°C;

[0142] The polymerized monomer is: ethylene

[0143] The copolymerization monomer is: butene.

[0144] The reaction time was 3 hours.

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Abstract

A method of alkene polymerization and copolymarization with f load non- metallocene catalyst: emplying the load non- metallocene catalyst and catalyst promoter forming the catalytic system, introducing polymer monomer or comonomer for alkene polymerization or copolymarization; adding the load non- metallocene catalyst into dissolvent and mixing with catalyst promoter and then transferring the mixture into polymerization reactor, or adding the load non- metallocene catalyst and catalyst promoter into the polymerization reactor in order or simultaneously. The catalyst promoter is chosen from: alkyl aluminium, aluminium oxane, Lewis acid, boralotano, alkyl borane or alkyl borane ammonium salt. The load non- metallocene catalyst is loaded to multiple poral solid by employing methods of solution dipping, equivoluminal dipping or solution dipping-before-equivoluminal dipping to form organic integral of property stable and strong binding force. The invention is characterized by the high alkene polymerization active, high fusion point and good normalization of the produced polymer, and the sastification of the demand of high level product production.

Description

technical field [0001] The invention belongs to the technical field of heterogeneous catalysts, and relates to a class of supported non-metallocene olefin polymerization catalysts, a method for catalyzing olefin polymerization and copolymerization between two or more different olefins. Background technique [0002] Homogeneous transition metal catalysts known to be highly active in olefin polymerization, such as unsupported Ziegler-Natta catalysts, metallocene olefin polymerization catalysts, constrained geometry olefin polymerization catalysts or non-metallocene olefin polymerization catalyst. [0003] During homogeneous polymerization, the formed polymer will stick to the kettle and entangle the stirring paddle, which has a great impact on the normal operation of the reactor and the heat exchange of materials in the reactor, which is not conducive to industrial continuous production. In addition, a large amount of co-catalyst methylaluminoxane is required in the homogeneo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F10/00C08F4/642
Inventor 戴厚良尤侯平李传峰姚小利马忠林周立进王亚明李晓强柏基业
Owner YANGZI PETROCHEM
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