Supercharge Your Innovation With Domain-Expert AI Agents!

Catalyst component for olefin polymerization, preparation method and application thereof, and catalyst for olefin polymerization and application thereof

An olefin polymerization and catalyst technology, which is applied to catalyst components and its application in olefin polymerization, can solve the problems of the difficulty of small particle size carriers and the poor regularity of large particle size carriers, and achieves good hydrogen modulation sensitivity and / or effects of stereospecificity, improved repeat stability, simple equipment

Active Publication Date: 2019-09-27
CHINA PETROLEUM & CHEM CORP +1
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is difficult to prepare a smaller particle size carrier, and the regularity of the prepared large particle size carrier is poor (prone to irregular material)

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 olefin polymerization, preparation method and application thereof, and catalyst for olefin polymerization and application thereof
  • Catalyst component for olefin polymerization, preparation method and application thereof, and catalyst for olefin polymerization and application thereof
  • Catalyst component for olefin polymerization, preparation method and application thereof, and catalyst for olefin polymerization and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0046] As mentioned above, the present invention provides a method for preparing a catalyst component for olefin polymerization, the method comprising: carrying out a contact reaction with a magnesium halide alcoholate carrier, a titanium compound and an internal electron donor, the internal donor The electron body contains an internal electron donor compound a and an internal electron donor compound b, the internal electron donor compound a is a glycol ester compound, and the internal electron donor compound b is a diether compound; the magnesium halide alcohol The preparation step of the material carrier includes: under pressure, the magnesium halide alcoholate melt passes through the structural unit with holes to contact with the liquid cooling medium.

[0047] According to the method of the present invention, preferably, the pressurizing conditions include: the pressure is 0.05-1 MPa, more preferably 0.1-0.5 MPa, further preferably 0.2-0.5 MPa. By using the preferred press...

Embodiment approach

[0053] According to a preferred embodiment of the present invention, the structural unit with holes is a mesh layer.

[0054] According to the method of the present invention, the adduct solid particles with equivalent particle morphology can be obtained by adopting the metal mesh with multi-layer large-aperture structure and the metal mesh with relatively small number of layers with small-aperture structure. When preparing small particle size (such as less than 30 μm) adduct carrier, it is preferable to use a metal mesh structure with 1-20 layers of small pore structure (such as pore size of 30-50 μm). It is preferred to use a metal mesh structure with 1-20 layers of relatively large aperture (eg, 65-200 μm aperture) structure.

[0055] According to a preferred embodiment of the present invention, the mesh layer includes 1-20 layers, preferably 2-8 layers; the thickness of each layer is 0.01-0.35mm, preferably 0.05-0.25mm, more preferably 0.1-0.15mm mm.

[0056] According t...

preparation Embodiment 1

[0149] In a 1L autoclave, add 500ml of silicone oil, 30g of magnesium chloride, and 50ml of ethanol, raise the temperature to 125°C with stirring, and stir at 125°C for 3 hours. The metal mesh (each layer thickness 0.1mm) is directly placed in 3L hexane pre-cooled to -30°C, the liquid is filtered off, the solid is washed three times with hexane, and dried in vacuum to obtain 50 grams of spherical magnesium chloride alcoholate solid particles S1, the alcohol / magnesium molar ratio is 2.6, and the characterization 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
pore sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of olefin polymerization and provides a catalyst component for olefin polymerization and a preparation method and use thereof. The preparation method comprises that a magnesium halide alcoholate carrier, a titanium compound and an internal electron donor contact and undergo a reaction, wherein the internal electron donor contains an internal electron donor compound a and an internal electron donor compound b, the internal electron donor compound a is a diol ester compound and the internal electron donor compound b is a diether compound. A preparation method of the magnesium halide alcoholate carrier comprises that magnesium halide alcoholate melt goes through a structural unit having a pore and contacts with a liquid cooling medium under pressure. The invention provides a catalyst for olefin polymerization and a use thereof. Compared with the existing catalyst, the catalyst prepared from the magnesium halide alcoholate carrier has good hydrogen sensitivity and / or stereoregularity and lays the foundation of development of high value-added polypropylene resin.

Description

technical field [0001] The present invention relates to a method for preparing a catalyst component for olefin polymerization, and the catalyst component for olefin polymerization obtained by the method and its application in olefin polymerization; and a catalyst for olefin polymerization and its application Application in olefin polymerization. [0002] technical background [0003] Polypropylene spherical catalysts are widely used in polypropylene production equipment in the loop process, and have the advantages of high apparent density of polymers, regular particle shape, high catalyst polymerization activity, and high stereospecificity. Support technology is one of the technical cores of spherical catalysts. [0004] The use of magnesium chloride alcoholate spherical supports in the synthesis of polyolefin catalysts is well known in the field of polyolefin catalysts. At present, the preparation methods of magnesium chloride alcoholate spherical carrier include spray dry...

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): C08F10/00C08F10/06C08F4/02C08F4/649C08F4/651
Inventor 赵瑾夏先知高富堂刘月祥谭扬任春红凌永泰李威莅彭人琪
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