Unlock instant, AI-driven research and patent intelligence for your innovation.

Catalyst component and catalyst for olefin polymerization

A technology of olefin polymerization and catalyst, which is applied in the field of catalysts and can solve the problems of narrow molecular weight distribution and high preparation cost of olefin polymers

Active Publication Date: 2019-01-01
CHINA PETROLEUM & CHEM CORP +1
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation cost of this type of compound is high, and the molecular weight distribution of the prepared olefin polymer is narrow

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 and catalyst for olefin polymerization
  • Catalyst component and catalyst for olefin polymerization
  • Catalyst component and catalyst for olefin polymerization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0121] 1. Preparation of Catalyst Components

[0122] (1) Configuration of the alcoholate solution: In a reaction kettle that has been repeatedly replaced with high-purity nitrogen, add 15.0g of anhydrous magnesium chloride, 60mL of toluene, and 63.5mL of iso-octanol in sequence, at a stirring speed of 300rpm and a temperature of 110°C. , and reacted for 2.0 hours to obtain a stable and uniform solution. Add 0.8 mL of 3,5-heptanediol dibenzoate and 3.0 mL of diisobutyl phthalate, and react for 1.5 hours under the condition of stirring speed of 300 rpm and temperature of 110°C. Then 2.25 mL of tetrabutyl titanate was added, and the mixture was reacted for 1.5 hours at a stirring speed of 300 rpm and a temperature of 110° C. Add 90 mL of toluene, and react for 0.5 hour under the condition of stirring speed of 300 rpm and temperature of 110° C., then cool to room temperature to obtain an alcoholate solution.

[0123] (2) Compounding of internal electron donor compound: compound...

Embodiment 2

[0128] The preparation of the catalyst component is the same as in Example 1, except that in step (2), compound A is replaced by compound B to obtain catalyst component 2.

[0129] The propylene polymerization method is the same as in Example 1, except that catalyst component 1 is replaced by catalyst component 2, and the polymerization results are shown in Table 1.

Embodiment 3

[0131] The preparation of the catalyst component was the same as in Example 1, except that in step (2), compound A was replaced by compound C to obtain catalyst component 3.

[0132] The propylene polymerization method is the same as in Example 1, except that catalyst component 1 is replaced by catalyst component 3, and 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

No PUM Login to View More

Abstract

The present invention relates to a catalyst component for olefin polymerization, and a catalyst thereof, wherein the catalyst component comprises magnesium, titanium, a halogen and an internal electron donor compound, and the internal electron donor compound comprises at least a 2,2'-biphenyl diphenol ester compound represented by a general formula (I) and at least a 2-cyano-2,3-dihydrocarbyl diethyl succinate compound represented by a general formula (II). According to the present invention, with the application of the catalyst in olefin polymerization reactions, the catalyst has advantages of high activity and good hydrogen sensitivity, and the obtained polyolefin resin has advantages of good stereospecificity and wide molecular weight distribution, and is particularly suitable for the development of polypropylene resins. The formulas I and II are defined in the specification.

Description

technical field [0001] The invention belongs to the technical field of catalysts, and in particular relates to a catalyst component for olefin polymerization and a catalyst thereof. Background technique [0002] A solid titanium catalyst component based on magnesium, titanium, halogen and an electron donor, known in the art as a Ziegler-Natta catalyst, can be used for CH 2 =CHR Polymerization of olefins, especially in the polymerization of α-olefins with 3 carbon atoms or more, can give polymers with higher yield and higher stereoregularity. It is well known that internal electron donor compounds are one of the essential components in Ziegler-Natta catalyst components. From the early disclosed monobasic carboxylate compounds, such as ethyl benzoate, to the widely used dibasic aromatic carboxylate compounds, such as di-n-butyl phthalate or diisobutyl phthalate , to the recently disclosed 1,3-diethers (CN1020448C), succinates (CN1313869) and α-cyanosuccinates (CN101811983A) ...

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): C08F10/00C08F4/649C08F4/645C08F4/646C08F110/06
CPCC08F10/00C08F110/06C08F4/6494C08F4/6465C08F4/645C08F2500/12C08F2500/15C08F2500/04C08F2500/18
Inventor 张锐谭忠周奇龙徐秀东尹珊珊李凤奎于金华宋维玮
Owner CHINA PETROLEUM & CHEM CORP