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

Broad distribution polypropylene catalytic component, component preparation method and catalyst

A technology for polypropylene catalysts and catalytic components, which is applied in the field of catalysts and can solve the problems of complex preparation, unfavorable industrial application and promotion, etc.

Active Publication Date: 2021-06-01
PETROCHINA CO LTD
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the preparation of cyanosuccinate compounds in the prior art is complicated, and dangerous metal potassium, potassium ethylate and other substances are used, which is not conducive to industrial application and promotion.

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
  • Broad distribution polypropylene catalytic component, component preparation method and catalyst
  • Broad distribution polypropylene catalytic component, component preparation method and catalyst
  • Broad distribution polypropylene catalytic component, component preparation method and catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-8

[0044] Introduce 230ml TiCl into a 500ml three-necked round-bottomed flask purged with nitrogen at -15°C 4 Get spherical magnesium chloride carrier 6.8g to add wherein while stirring, flask is heated to 60 ℃, then add the corresponding ester compound (prepared by the aforementioned method) in 5.5mol table 1, temperature is raised to 120 ℃, reaction 2 hours, then the stirring was stopped and the liquid was filtered off. Add 230ml fresh TiCl again 4 , continue to react at 120°C for 2 hours, filter out the liquid, wash the obtained solid with anhydrous hexane at 60°C until no titanium can be detected in the cleaning solution, and then vacuum-dry to obtain the catalytic component, which is ready for use.

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 discloses a wide distribution polypropylene catalytic component, which comprises 10-25% of magnesium, 1-10% of titanium, 40-60% of halogen and 1-30% of internal electron donor in weight percentage , the internal electron donor is a compound containing at least one general formula (I): wherein R 1 and R 2 from C 1 ~C 20 straight chain or branched chain alkyl, more preferably C 1 ~C 5 straight-chain or branched-chain alkyl groups. The catalytic component is used as a propylene polymerization catalyst to obtain a more ideal molecular weight distribution. The invention further discloses a preparation method of the catalytic component and a catalyst containing the component.

Description

technical field [0001] The invention relates to a propylene polymerization catalyst component, a preparation method of the component and a catalyst containing the component, in particular to a polypropylene catalyst component and a catalyst for preparing a wider molecular weight distribution. Background technique [0002] At present, the high-efficiency Ziegler-Natta catalyst is still the main catalyst for polypropylene used in industrial production. During catalyst preparation and polymerization, it is necessary to add electron-rich Lewis base compounds, that is, electron donor compounds. The addition of electron donor compounds can improve the activity and stereoselectivity of the catalyst, control the relative molecular mass and distribution of the polymer, and optimize the performance of the catalyst, so as to achieve the purpose of improving the performance of the polymer. According to different ways of addition, electron donor compounds can be divided into internal el...

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): C08F110/06C08F4/651C08F4/649C08F4/646
CPCC08F110/06C08F4/651C08F4/6495C08F4/6465C08F2500/04C08F2500/15
Inventor 张文学朱博超徐人威黄安平高琳李忠宋赛楠王霞刘强邓守军张平生刘小燕刘永军巨娟霞
Owner PETROCHINA CO LTD