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A kind of polymerization reaction device and its application

A technology of polymerization reaction and reactor, which is applied in the application field of preparing olefin copolymers, can solve the problems of waste of raw materials, low adjustment accuracy, increase of recycling and processing costs, etc., and achieve the effect of reducing costs and saving raw materials

Active Publication Date: 2015-08-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the feed flow rate is not adjusted, as the activity of the catalyst decreases, more and more monomers will directly enter the recovery system without participating in the reaction, which not only causes waste of raw materials, but also increases the cost of recovery treatment
In addition, manually adjust the feed flow rate according to the change of reaction temperature, that is, when the reaction temperature is lowered, the feed flow rate is lowered; when the reaction temperature is higher, the feed flow rate is increased; the monomer entering the recovery system can be reduced amount, but the adjustment accuracy is still low

Method used

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  • A kind of polymerization reaction device and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] This example is used to illustrate the preparation of the olefin polymer provided by the present invention.

[0034] exist figure 1 The preparation of olefin polymer is carried out in the polymerization reaction device shown, wherein the capacity of the reaction tank is 5L. Set the temperature of the reactor to 60°C and the pressure to 0.5MPa, and add methyl aluminoxane, dimethylsilyl bridge bis(2-methyl-4-phenylindenyl)zirconium dichloride and toluene The mixture (wherein, dimethylsilyl-bridged bis(2-methyl-4-phenylindenyl) zirconium dichloride is 100 μmol, the molar ratio of Al / Zr is 3000, and toluene is 3L) is placed in Reactor 1, The cooling water is introduced from the inlet of the jacket and drawn out from the outlet of the jacket, and the mixture of ethylene and propylene (the molar ratio is 1:1) is continuously introduced into the reactor 1 through the material inlet and polymerized (the initial feeding speed is 13.4mol / h ), the mixture of undissolved ethylene...

Embodiment 2

[0036] This example is used to illustrate the preparation of the olefin polymer provided by the present invention.

[0037] exist figure 1 The preparation of olefin polymer is carried out in the polymerization reaction device shown, wherein the capacity of the reaction tank is 5L. Set the temperature of the reactor to 30°C and the pressure to 0.1 MPa, and add methyl aluminoxane, dimethylsiloxane bis(2-methyl-4-phenylindenyl) zirconium dichloride and toluene The mixture (wherein, dimethylsilyl bridged bis(2-methyl-4-phenylindenyl) zirconium dichloride is 100 μmol, the molar ratio of Al / Zr is 500, and toluene is 3L) is placed in Reactor 1, The cooling water is introduced from the inlet of the jacket and drawn out from the outlet of the jacket, ethylene is continuously introduced into the reactor 1 through the material inlet and polymerized (the initial feeding rate is 6.7mol / h), and the undissolved ethylene is continuously drawn out through the material outlet and into the rec...

Embodiment 3

[0039] This example is used to illustrate the preparation of the olefin polymer provided by the present invention.

[0040] exist figure 1 The preparation of olefin polymer is carried out in the polymerization reaction device shown, wherein the capacity of the reaction tank is 5L. Set the temperature of the reactor to 60°C and the pressure to 0.5MPa, and add methyl aluminoxane, dimethylsilyl bridge bis(2-methyl-4-phenylindenyl)zirconium dichloride and toluene The mixture (wherein, dimethylsilyl-bridged bis(2-methyl-4-phenylindenyl)zirconium dichloride is 100 μmol, the molar ratio of Al / Zr is 1500, and toluene is 3L) is placed in Reactor 1, The cooling water is introduced from the inlet of the jacket and drawn out from the outlet of the jacket, propylene is continuously introduced into the reactor 1 through the material inlet and polymerized (the initial feeding rate is 13.4mol / h), and the undissolved propylene is continuously drawn out through the material outlet and into th...

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Abstract

The invention provides a polymerization reaction device and an application thereof. The polymerization reaction device comprises a reaction kettle (1) and a control unit (8). A pipe connecting a kettle body and a material source is provided with a first temperature measuring unit (18) and a first flow rate measuring unit (19). A second temperature measuring unit (16) and a second flow rate measuring unit (17) are arranged on a pipe connecting the kettle body and the outside. A third temperature measuring unit (11) and a third flow rate measuring unit (12) are arranged on a pipe connecting a jacket inlet and the outside. A fourth temperature measuring unit (13) and a fourth flow rate measuring unit (14) are arranged on a pipe connecting a jacket outlet and the outside. A fifth temperature measuring unit (15) is arranged on a pipe connecting the control unit (8) and the reaction kettle (1). The temperature and flow rate measuring units are respectively connected with the control unit (8). With the device, olefin feeding flow rate can be adjusted, polymerization reaction can be precisely and effectively controlled, and reaction efficiency can be improved.

Description

technical field [0001] The invention relates to a polymerization reaction device and the application of the polymerization reaction device in preparing olefin copolymers. Background technique [0002] As we all know, the method of preparing polymers from gaseous olefins is usually to continuously feed gaseous olefin monomers into the polymerization reaction system at a constant feed flow rate, or to manually adjust the gaseous olefins entering the polymerization reaction system by changing the temperature in the reaction system. Monomer feed flow. During the polymerization process, the gaseous olefin monomers that do not participate in the reaction will be separated from the reaction system and purified by the recovery system for reuse. As the polymerization reaction proceeds, the activity of the catalyst will change. For example, in a batch polymerization reaction, the activity of the catalyst decreases with time, and correspondingly, the amount of monomer reacted per uni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F2/01C08F10/00C08F210/16C08F110/02C08F110/06
Inventor 唐正伟徐一兵李传清陈建军邵眀波
Owner CHINA PETROLEUM & CHEM CORP