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Load type polymerization catalyzed system, preparation method and application

A catalytic system and carrier technology, applied in the field of supported catalytic systems and their preparation, can solve problems such as inability to directly apply, and achieve the effects of simplified post-processing process, easy availability of raw materials, and control of polymerization rate

Inactive Publication Date: 2007-12-26
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned technologies mainly involve late-transition metal nickel catalysts with high activity for norbornene polymerization, which can be applied in homogeneous polymerization, but such homogeneous catalysts cannot be directly applied to existing industrial slurry and gas phase catalysts. On the polymerization device

Method used

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  • Load type polymerization catalyzed system, preparation method and application
  • Load type polymerization catalyzed system, preparation method and application
  • Load type polymerization catalyzed system, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1 Preparation process of supported catalyst

[0038] Vacuumize and fill nitrogen in the reaction kettle, repeat several times, add 4.54 grams of MgCl 2 .2.97C 2 h 5 OH, and about 100 ml of n-hexane was added, and 29.3 ml of 10% MAO toluene solution was added dropwise at -30°C (in about 0.5 to 1.0 hours), stirred at -30°C for 4 hours, then suction filtered and washed with hexane Twice, dry.

[0039] Add 50 ml of toluene solution of 0.1388 g of nickel complex as shown in the figure below, and stir at room temperature for 4 hours. Filter with suction, wash with hexane until the filtrate is almost colorless, and then dry to obtain a light yellow powder.

[0040]

[0041] 2 Catalyst analysis results

[0042] 3 norbornene polymerization:

[0043] Polymerization medium toluene: Vacuumize a dry 100 ml Schlenk bottle with a stirring magnet in sequence, fill it with nitrogen and replace it three times, make the reaction system in a nitrogen environment, add 0.1630 g of...

Embodiment 2

[0046] 1 Preparation process of supported catalyst

[0047] Vacuumize and fill the reactor with nitrogen, repeat several times, add 5.48 grams of MgCl 2 2.97C 2 h 5 OH, and about 100 ml of n-hexane was added, 35.4 ml of 10% MAO toluene solution was added dropwise at 0°C (within about 0.5 to 1.0 hours), stirred at 0°C for 4 hours, then suction filtered and washed twice with hexane ,dry.

[0048] Add 50 ml of toluene solution of 0.1675 g of nickel complex as follows, and stir at room temperature for 4 hours. Filter with suction, wash with hexane until the filtrate is almost colorless, and then dry to obtain a light yellow powder.

[0049]

[0050] 2 Catalyst analysis results

[0051] 3 norbornene polymerization:

[0052]Polymerization medium toluene: vacuumize the dry 100 milliliter Schlenk bottle with a stirring magnet, and replace it with nitrogen for three times, so that the reaction system is in a nitrogen environment, add 0.1048 grams of the catalyst described i...

Embodiment 3

[0055] 1 Preparation process of supported catalyst

[0056] Vacuumize and fill nitrogen in the reaction kettle, repeat several times, add 3.42 grams of MgCl 2 2.97C 2 h 5 OH, and about 100 ml of n-hexane was added, 33.9 ml of 10% MAO toluene solution was added dropwise at -30°C (within about 0.5 to 1.0 hours), stirred at -30°C for 4 hours, then suction filtered and washed with hexane Twice, dry.

[0057] Add 50 ml of toluene solution of 0.4182 g of nickel complex as shown in the figure below, and stir at room temperature for 4 hours. Filter with suction, wash with hexane until the filtrate is almost colorless, and then dry to obtain a light yellow powder.

[0058]

[0059] 2 Catalyst analysis results

[0060] 3 norbornene polymerization:

[0061] Polymerization medium toluene: vacuumize the dry 100 ml Schlenk bottle with a stirring magnet, and replace it with nitrogen for three times, so that the reaction system is in a nitrogen environment, add 0.0381 grams of the...

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Abstract

This invention relates to a catalyst system for bicyclo [2.2.1] hept-2-ene and its derivatives, its preparation method and its application. The catalyst system comprises: carrier, major catalyst and auxiliary catalyst. The carrier is MgCl2.xROH (x = 1-3, ROH is C3-C8 alcohol) or silica gel. The auxiliary catalyst is methylaluminoxane. The major catalyst is nickel complex with ligands containing nitrogen and oxygen. The catalyst system is prepared by supporting nickel complex with spherical MgCl2 carrier or silica gel carrier. This invention has such advantages as simple process, abundant raw materials and high catalytic activity.

Description

technical field [0001] The invention relates to a supported catalytic system and its preparation method and application, in particular to a catalytic system for catalytic polymerization of bicyclo[2.2.1]hept-2-ene and derivatives thereof, its preparation method and application. Background technique [0002] Currently, bicyclo[2.2.1]hept-2-ene is commonly known as norbornene. Bicyclo[2.2.1]hept-2-ene and its derivatives can be polymerized in three ways as shown in the diagram below: [0003] [0004] Polymers with different structures and properties can be obtained by different polymerization methods. The first type of polymerization is called ring-opening metathesis polymerization (ROMP), and the resulting polymer chain still contains double bonds, so it can be processed by hydrogenation or cross-linking for different purposes, and is the most studied type of norbornene polymerization Way. St. The second polymerization method, cationic or radical polymerization, is not...

Claims

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Application Information

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IPC IPC(8): C08F4/70C08F36/00
Inventor 张德胜孙文华张红红侯俊先东升魁杜娟孙艳红刘洪伟
Owner PETROCHINA CO LTD
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