Magnesium halide alcohol adduct and preparation method and application thereof

A technology of magnesium halide alcohol compound and polyether compound, which is applied in the field of olefin polymerization, especially in the field of propylene polymerization or copolymerization catalyst components, can solve the problems such as difficulty in forming spherical particles of particle size, easy stickiness, and reduction in fine powder content. , to achieve the effect of good particle shape, less fine powder and small particle size

Active Publication Date: 2009-09-30
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 48 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the composite spherical carrier is easily sticky during the preparation process, it is difficult to form spherical particles with a suitable particle size. The size of the disclosed spherical carrier is D50: 70-200, and its catalytic activity for propylene polymerization is only It is 406g PP / g cat h, and as Chinese patent CN101050245 discloses a kind of C, C-dioxyl compound is introduced in the support, and the average particle diameter of the obtained support is about 50 μm, and the supported catalyst has better hydrogen To adjust the sensitivity, the content of fine powder in the polymer has a certain reduction

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
  • Magnesium halide alcohol adduct and preparation method and application thereof
  • Magnesium halide alcohol adduct and preparation method and application thereof
  • Magnesium halide alcohol adduct and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Preparation of the carrier:

[0050] In a 500mL pressure-resistant reactor, sequentially add 250ml of silicone oil, 15g of magnesium chloride, 26ml of ethanol and 0.3g of polypropylene alcohol (PPG). Suction filtration and washing with hexane three times, and vacuum drying to obtain a spherical carrier referred to as Sp-p for short.

[0051] Catalyst preparation:

[0052] Into a 300 mL glass reaction bottle, add 100 ml of titanium tetrachloride and hexane, cool to -20°C, add 8 grams of the above-mentioned spherical carrier, and heat up to 110°C. During the heating process, 1.5 ml of diisobutyl phthalate was added, the liquid was filtered off, washed twice with titanium tetrachloride, washed three times with hexane, and dried in vacuo. The catalyst prepared by Sp-p carrier is called SpC-p for short.

[0053] Propylene polymerization:

[0054] The liquid-phase bulk polymerization of propylene was carried out in a 5L stainless steel autoclave. Under nitrogen protectio...

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 diameteraaaaaaaaaa
Login to view more

Abstract

The invention relates to a catalyst component used for olefin polymerization, specially for propylene polymerization or copolymerization, in particular to a novel spherical alcohol adduct containing ternary components of magnesium halide, alcohol and polyether as well as the application of the alcohol adduct in the preparation of olefin polymerization catalyst. When the catalyst prepared by taking the alcohol adduct as a carrier is used for olefin polymerization, especially for propylene polymerization, better polymerization activity, good polymer grain forms and less fine powders are shown. The invention is used in the field of petrochemical industry.

Description

technical field [0001] The present invention relates to a catalyst component for olefin polymerization, especially propylene polymerization or copolymerization, in particular to an alcoholate of a ternary component comprising magnesium halide, alcohol and polyether. Background technique [0002] In the field, titanium-based catalysts supported on magnesium halide carriers have been widely used in the synthesis of polypropylene. After magnesium halide and alcohol form alcoholate, the supported catalyst formed after reacting with titanium halide and electron donor compound has high catalytic efficiency and stereospecificity when it is used for olefin polymerization, especially propylene polymerization. In particular, the synthesized polymers have good particle morphology and high apparent density when using catalysts prepared from spherical alcoholates as supports. Good polymer particle morphology is very important in the industrial production of polypropylene synthesis. [...

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 Applications(China)
IPC IPC(8): C08F4/02C08F4/645C08F10/00
Inventor 凌永泰陈伟
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap