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

Solid titanium catalyst component for ethylene polymerization, ethylene polymerization catalyst and ethylene polymerization method

A technology of ethylene polymerization and titanium catalyst, which is applied in the field of solid titanium catalyst components for ethylene polymerization, which can solve the problems of activity decline and other problems, and achieve the effects of less generation of solvent-soluble components, excellent hydrogen responsiveness, and excellent control of molecular weight distribution

Active Publication Date: 2013-05-29
MITSUI CHEM INC
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the molecular weight is adjusted by adding hydrogen, but when the amount of hydrogen is increased to produce a low molecular weight part, the activity tends to decrease

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
  • Solid titanium catalyst component for ethylene polymerization, ethylene polymerization catalyst and ethylene polymerization method
  • Solid titanium catalyst component for ethylene polymerization, ethylene polymerization catalyst and ethylene polymerization method
  • Solid titanium catalyst component for ethylene polymerization, ethylene polymerization catalyst and ethylene polymerization method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0405] "Preparation of Solid Titanium Catalyst Components for Ethylene Polymerization"

[0406] Make 4.76g (50 mmol) anhydrous magnesium chloride, 28.1ml decane and 16.3g (125 mmol) 2-ethylhexanol (EHA) carry out heating reaction at 130 ℃ for 3 hours, after forming a uniform solution, add 0.94 g (20 mmol) of ethanol (EtOH) was heated at 50° C. for 1 hour. To this solution, 0.96 g (3.75 mmol) of diisopropyl cis-cyclohexane-1,2-dicarboxylate was added, stirred and mixed at 50° C. for 1 hour, and then gradually cooled to room temperature.

[0407] The entire amount of the homogeneous solution thus obtained was dropped into 200 ml (1.8 mol) of titanium tetrachloride at 0° C. over 1 hour while stirring. The temperature was kept at 0°C during the dropwise addition. After the addition, the temperature of the mixture was kept at 0°C for 1 hour, then raised to 110°C over 1 hour and 45 minutes, stirred for another 30 minutes and kept at the same temperature, and then filtered at the sam...

Embodiment 2

[0412] "aggregation"

[0413] In addition to adding the solid titanium catalyst component (I-1) for ethylene polymerization in an amount equivalent to 0.015 millimoles in terms of titanium atoms, the temperature was raised to 80° C., hydrogen was supplied at 0.55 MPa, and ethylene was continuously supplied for 1.5 hours to make the gauge pressure 0.6. Except MPa, ethylene was polymerized in the same manner as in Example 1. The results are shown in Table 1.

Embodiment 3

[0415] "aggregation"

[0416] In addition to adding the solid titanium catalyst component (I-1) for ethylene polymerization in an amount equivalent to 0.015 millimoles in terms of titanium atoms, the temperature was raised to 80° C., hydrogen was supplied at 0.58 MPa, and ethylene was continuously supplied for 1.5 hours to bring the total pressure to 0.6. Except MPa, ethylene was polymerized in the same manner as in Example 1. The 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

Provided are a solid titanium catalyst component for ethylene polymerization which can polymerize ethylene at a high activity and which can provide an ethylene polymer having an excellent particle property, an ethylene polymerization catalyst and an ethylene polymerization method in which the catalyst is used. The solid titanium catalyst component (I) for ethylene polymerization according to the present invention is obtained by bringing a liquid magnesium compound (A) including a magnesium compound, an electron donor (a) having 1 to 5 carbon atoms and an electron donor (b) having 6 to 30 carbon atoms into contact with a liquid titanium compound (C) under the presence of an electron donor (B) and includes titanium, magnesium and a halogen. The ethylene polymerization catalyst of the present invention includes the component (I) and an organic metal compound catalyst component (II). Further, the ethylene polymerization method of the present invention is a method for polymerizing ethylene under the presence of the catalyst.

Description

technical field [0001] The present invention relates to a solid titanium catalyst component for ethylene polymerization, a catalyst for ethylene polymerization, and a catalyst for ethylene that can obtain an ethylene-based polymer with a small amount of solvent-soluble components and a good particle shape with extremely high activity, and has excellent molecular weight control performance. aggregation method. Background technique [0002] Ethylene polymers such as homopolyethylene and linear low-density ethylene polymer (LLDPE) are excellent in transparency, mechanical strength, and the like, and are widely used as films and the like. Various methods for producing such ethylene polymers have been known so far, and it is known that a solid titanium catalyst containing a titanium catalyst component containing titanium, magnesium, halogen and an electron donor as an optional component is used as a polymerization catalyst. , it is possible to produce ethylene polymers with high...

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): C08F4/654C08F4/611C08F10/00
CPCC08F10/00C08F110/02C08F4/6543C08F4/651C08F4/654C08F2500/12C08F2500/17C08F2500/24C08F2500/18
Inventor 松永和久山本英生山本邦雄筱崎哲德高桥清
Owner MITSUI CHEM INC
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