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A method for preparing high activity olefin polymerization catalyst

A technology for olefin polymerization and catalyst, which is applied in the field of preparing high-activity olefin polymerization catalyst and can solve problems such as low catalyst activity

Active Publication Date: 2017-05-24
PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the catalyst has low activity

Method used

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  • A method for preparing high activity olefin polymerization catalyst
  • A method for preparing high activity olefin polymerization catalyst
  • A method for preparing high activity olefin polymerization catalyst

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Embodiment Construction

[0021] The present invention relates to a method for preparing a highly active olefin polymerization catalyst, which can be described by the following aspects.

[0022] Any aspect shown herein is intended to include other aspects of the invention, unless otherwise stated.

[0023] definition

[0024] All technical and scientific terms used herein have the meaning as would be understood by one of ordinary skill in the art, unless defined otherwise.

[0025] Unless otherwise stated, any instrument, device, method or chemical mentioned herein should be understood as an instrument, device, method or chemical commonly used or practiced by those skilled in the art, unless otherwise stated they are only used in the present invention specific tools, equipment, methods, or chemicals.

[0026] Use of the singular noun or pronoun when used in conjunction with "comprise" in the claims and / or specification means "a" and also includes "one or more", "at least one", and "one or more in ...

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Abstract

The present invention relates to a method for preparing a high activity olefin polymerization catalyst, which is easy to be produced, reducing complicated steps, and can be produced at low temperature, wherein said method comprising the following steps: (a) adding a magnesium halide into an alcohol solvent; (b) precipitating the solution obtained from (a) in a solution of an organic solvent containing an organo compound of group III element; (c) adding a titanium compound into the mixture obtained from (b) to obtain a catalyst; (d) treating the catalyst obtained from (c) with an organoaluminium compound at a temperature ranging from 0 to 60 DEG C for 2 to 5 hours, wherein the mole ratio of aluminium to titanium (Al / Ti) for treatment is in a range of 1 to 30.

Description

technical field [0001] The present invention relates to chemical mixtures and chemical processes for the preparation of highly active olefin polymerization catalysts. Background technique [0002] It is well known that the physical and mechanical properties of polymers depend on the catalyst used in the polymerization reaction. Therefore, many attempts have been made in the research and development of catalytic systems for preparing polymers with good properties suitable for industrial needs. [0003] The hitherto known Ziegler-Natta catalysts are suitable catalysts for polyolefin polymerization processes. However, the production of industrial polyolefins using said catalysts always has the problem of formation of low molecular weight polyolefins or waxes as by-products, which are cheap and unwanted products. Therefore, highly active catalysts have been developed to overcome this problem. [0004] Furthermore, the use of Ziegler-Natta catalysts invariably results in broad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F10/02C08F110/02C08F4/655
CPCC08F10/02C08F110/02C08F2500/04C08F2500/07C08F4/6555C08F4/6557C08F10/00C08F4/6421C08F4/643C08F2/38
Inventor 素提瓦特·萨明帕让廷库·康宛永那勒德·培拉克
Owner PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED