Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Catalyst component for vinyl polymerization and catalyst comprising the same

A technology of ethylene polymerization and catalyst, which is applied in the field of catalyst components, can solve the problem of unsatisfactory hydrogen adjustment sensitivity, etc., and achieve the effect of less subdivision content and high catalytic activity

Inactive Publication Date: 2012-02-08
CHINA PETROLEUM & CHEM CORP +1
View PDF9 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hydrogen tuning sensitivity of the catalyst systems mentioned above is not satisfactory.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Catalyst component for vinyl polymerization and catalyst comprising the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1) Preparation of catalyst components: In a reactor fully replaced by high-purity nitrogen, 4.0g magnesium dichloride (0.042mol), 60ml toluene, 19.2g (0.084mol) tetraethoxytitanium, 6.9ml (0.1176mol) ethanol, 2.1ml (0.0126mol) triethoxyborane, heated to 70°C for reaction under stirring, and reacted at 70°C for 1 hour after the solid was completely dissolved to form a uniform solution. Cool down to 65°C, slowly add 21ml of 2M monochlorodiethylaluminum heptane solution dropwise, and maintain the reaction at 65°C for 1 hour, then raise the temperature to 90°C and continue the reaction for 1 hour. Cool the system to 30°C, let the solid precipitate, filter the filtrate, and wash the solid twice with 60ml hexane, add 60ml hexane to the solid and stir, slowly add 60ml titanium tetrachloride dropwise, and react at 30°C for 1 hour. Stirring was stopped, and the suspension was left to stand, the suspension was quickly separated into layers, the upper clear layer was removed, was...

Embodiment 2

[0046] (1) The synthesis of catalyst is the same as in Example 1. Only the amount of ethanol was changed from 6.9ml to 4.9ml.

[0047] (2) Ethylene polymerization is with embodiment 1. The catalyst composition and polymerization results are shown in Table 1.

Embodiment 3

[0049] (1) The synthesis of catalyst is the same as in Example 2. Just change diethylaluminum chloride to isobutylaluminum dichloride.

[0050] (2) Ethylene polymerization is with embodiment 1. The catalyst composition and polymerization results are shown in Table 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a catalyst component for vinyl polymerization, a catalyst containing the component, and a preparation method of the component. The catalyst component is prepared by the following steps: (1)reacting a magnesium compound, an organic alcoholic compound, at least an organic titanium compound with at least a boron compound to obtain a reaction product A; (2) reacting the reaction product A with at least an organo-aluminum compound to obtain a reaction product B; (3) reacting the reaction product B with at least an inorganic titanium compound to obtain the final catalyst component. The catalyst disclosed herein has high catalytic activity, good hydrogen response, narrow polymer particle size distribution and the like, and is very suitable for being applied in vinyl slurry polymerization technology and composite polymerization technology that requiring a high catalytic activity catalyst.

Description

technical field [0001] The present invention relates to a catalyst component for ethylene polymerization, a method for preparing the catalyst component and the catalyst. technical background [0002] As we all know, the catalyst system containing Ti / Mg composite plays a dominant role in the industrial production of polyethylene, and the core of its research is nothing more than the polymerization activity of the catalyst, the particle shape and particle size distribution of the catalyst, the hydrogen adjustment sensitivity and Copolymerization performance and so on. In the slurry polymerization process of ethylene, in addition to requiring the catalyst to have high catalytic activity, it is very important to control the particle size and particle size distribution of the produced ethylene polymer. In the process of ethylene polymerization, especially the slurry polymerization of ethylene, it is easy to produce polymer fine powder, which is easy to generate static electricit...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08F10/02C08F4/658C08F4/654C08F4/657C08F4/655C08F4/653
Inventor 郭子方张韬毅周俊领杨红旭苟清强
Owner CHINA PETROLEUM & CHEM CORP
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com