Supercharge Your Innovation With Domain-Expert AI Agents!

Catalyst compsns. for olefin polymerization and catalyst thereof

A technology of olefin polymerization and catalyst, which is applied in the field of catalyst components and catalysts, and can solve the problems of large amount of titanium tetrachloride and complex synthesis process of spherical catalysts, etc.

Active Publication Date: 2008-09-10
CHINA PETROLEUM & CHEM CORP +1
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the synthesis of the catalyst, the amount of titanium tetrachloride is relatively large
In addition, the synthesis process of spherical catalysts is too complicated, especially the preparation of spherical supports

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 compsns. for olefin polymerization and catalyst thereof
  • Catalyst compsns. for olefin polymerization and catalyst thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] 1. Catalyst synthesis: Add 5.0 grams of anhydrous MgCl in turn to a glass bottle fully replaced by high-purity N2 2 , 120ml of toluene, 8.0ml of epichlorohydrin, and 10.0ml of tributyl phosphate were completely dissolved at 50°C, and the solution was cooled to -25°C, then 50ml of titanium tetrachloride was dropped into it, and dissolved at -25°C Stir at low temperature for half an hour, add 3.0 g of silica gel (Davison XPO2485, dry at 600°C for 4 hours before using the silica gel), then slowly raise the temperature to 90°C, add 2-isopropyl-2-isopentyl-1,3- 1ml of dimethoxypropane was treated with 40ml of titanium tetrachloride, washed twice with toluene and hexane after filtration, and vacuum-dried to obtain 10.8 grams of solid catalyst.

[0053] 2. Propylene polymerization: After the stainless steel kettle with a volume of 2 liters is fully replaced by N2, add 11.3 mg of the above-mentioned solid catalyst, 1.0 mmol of triethylaluminum, 0.1 mmol of CHMMS, add 1 L (stand...

Embodiment 2

[0055] 1, the synthesis of catalyst: with embodiment 1.

[0056] 2. Polymerization: Same as Example 1 except adding 5L of hydrogen, the polymerization results are shown in Table 1.

Embodiment 3

[0058] 1. Synthesis of catalyst: same as Example 1 except adding 2 ml of 2-isopropyl-2-isoamyl-1,3-dimethoxypropane.

[0059] 2. Polymerization: with embodiment 1, the 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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

This invention relates to a catalyst component for alkene polymerization and its catalyst. Magnesium chloride-silica gel composite gel is adopted for this component, and 1, 3-diether compounds which have a common formula (I) is introduced in the preparation of the catalyst component as internal donors. When the catalyst component in this invention is used in alkene polymerization, not only the catalyst is of high activity, but also the obtained polymer is of high apparent density and outstanding hydrogen sensitivity, that is, polymer with high melt index can be obtained in high-concentration hydrogen atmosphere. And when it is specifically used in propylene polymerization, the obtained polymer has high stereo orientation and outstanding comprehensive properties.

Description

technical field [0001] The present invention relates to a catalyst component and catalyst for olefin polymerization, especially propylene polymerization or copolymerization, more specifically, to a catalyst component and catalyst using a diether electron donor and a composite carrier. technical background [0002] As we all know, in the synthesis technology of polypropylene, titanium / magnesium catalyst system is widely used in the synthesis process of isotactic polypropylene due to its high efficiency and high stereospecificity (isotacticity). In the industrial production of polypropylene, there are two main requirements for the catalyst, one is to have higher activity and better hydrogenation sensitivity in the polymerization reaction, and the other is that the obtained polymer should have relatively good comprehensive properties . The main properties of polypropylene include the isotacticity of the polymer, the molecular weight distribution and the particle shape of the p...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C08F10/06C08F4/646
Inventor 刘月祥陈伟谭杨马兆文纪卫民
Owner CHINA PETROLEUM & CHEM CORP
Features
  • R&D
  • 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