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Solid catalyst for olefin polymerization, olefin polymerization method, and olefin polymer particle produced by the method

An olefin polymer and olefin polymerization technology, applied in the field of solid catalysts for olefin polymerization, olefin polymerization and olefin polymer particles obtained from the polymerization, can solve problems such as long time and large quantities

Active Publication Date: 2009-10-14
MITSUI CHEM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in these methods requiring high-efficiency washing, a large amount of solvent is required, and a large amount of waste liquid is also generated.
Furthermore, it takes a long time in the washing process, and it can be said that it is a method with many problems from the viewpoint of industrial production.

Method used

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  • Solid catalyst for olefin polymerization, olefin polymerization method, and olefin polymer particle produced by the method
  • Solid catalyst for olefin polymerization, olefin polymerization method, and olefin polymer particle produced by the method
  • Solid catalyst for olefin polymerization, olefin polymerization method, and olefin polymer particle produced by the method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0175] Production of solid catalyst (K) for olefin polymerization

[0176] [Process P1]

[0177] A stirring bar was attached to a 100 ml four-neck flask fully replaced with nitrogen, and 5.01 g of silica gel (trade name: H-122, manufactured by Asahi SITECH Co., Ltd.) dried at 200° C. under a nitrogen atmosphere, and dehydrated toluene were added thereto. 44ml, heated to 50°C by superheating in an oil bath. 2.5 ml of a toluene solution (1M) of triisobutylaluminum was added, and 19.0 ml of a toluene solution of methylaluminoxane (manufactured by Tosoh Fine Chemicals Co., Ltd., aluminum concentration 9.1% by weight) was further added. After reacting at 50°C for 30 minutes, it was further reacted at 95°C for 4 hours. After standing still at 60° C., 36 mL of the supernatant was removed by decantation to obtain a toluene slurry of silica-supporting methylaluminoxane.

[0178] [Process P2]

[0179] The toluene slurry of the silica-supported methylaluminoxane obtained in the step ...

Embodiment 2

[0181] As silica gel (trade name: H-122, manufactured by Asahi SITECH Co., Ltd.), silica gel in which fine particles with a diameter of 4 μm or less were removed by classification, and 16.8 ml of a toluene solution of methylaluminoxane were used, and the same procedure as in Example was carried out. 1 same manufacture. As a result of analysis, zirconium in the powder was 0.18% by weight, aluminum was 16.7% by weight, and silicon was 23.2% by weight. The loss on ignition was 14.1% by weight. In addition, as a result of elemental analysis of the residue after firing, peaks derived from silicon atoms and aluminum atoms were confirmed.

Embodiment 3

[0183] Production of solid catalyst (K') for olefin polymerization

[0184] Into a 200ml flask, 10.02g of the liquid paraffin slurry produced in Example 2, 6.51g of the filtrate filtered through a membrane filter, and 30ml of hexane were added, and heated to 34°C. 2.0 ml of a hexane solution of 1 mol / L triisobutylaluminum and a 10 g / L hexane solution of polyoxyalkylene diol (trade name: Adcapac L-71, manufactured by Asahi Denka Kogyo Co., Ltd.) were added thereto 2ml. Ethylene was blown into the gas phase at a rate of 1.5 NL / h, and polymerization was performed at 35° C. for 4 hours. Residual ethylene was purged with nitrogen, and the resulting slurry was filtered through a membrane filter. Drying was performed under reduced pressure for 3 hours to obtain 7.56 g of a solid catalyst (K').

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Abstract

Disclosed are: a solid catalyst component for use in the production of an olefin polymer having an excellent particulate morphology with good efficiency without the concern of causing fouling; and a method for the polymerization of an olefin in the presence of the solid catalyst component. Specifically disclosed is a solid catalyst (K) for use in the polymerization of an olefin, which is characterized by meeting the following requirements [1] and [2]: [1] a loss of ignition is 30 wt% or less as measured on a differential thermogravimeter; and [2] after treating the catalyst with water vapor of room temperature and then contacting it with acetonitrile, a component eluted into acetonitrile comprises a compound having a molecular skeleton represented by the general formula [I], wherein R represents a hydrogen atom or an alkyl group having 1 to 12 carbon atoms.

Description

technical field [0001] The present invention relates to a solid catalyst for olefin polymerization, an olefin polymerization method using the solid catalyst, and olefin polymer particles obtained by the polymerization method. Background technique [0002] It is known that by polymerizing or copolymerizing olefins in the presence of a metallocene compound known as a homogeneous catalyst, for example, a metallocene compound containing a Group 4 metal such as zirconium and a cocatalyst component such as an organoaluminum component, it is possible to Production of olefin polymers such as polyethylene, polypropylene, ethylene-α-olefin copolymers, and propylene-α-olefin copolymers. As such metallocene-based catalysts, there are known "homogeneous catalysts" containing cocatalyst components such as metallocene compounds and aluminoxanes, and "supported solid catalysts" in which metallocenes and cocatalyst components are supported on a carrier. [0003] From the perspective of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F4/6592C08F10/00
CPCC08F10/00C08F4/65927C08F210/06C08F210/16C08F4/6592C08F4/65C08J3/12
Inventor 船谷宗人佐久间笃山下正洋
Owner MITSUI CHEM INC
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