Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of catalyst composition and application for ethylene oligomerization

A technology for ethylene oligomerization and composition, which is applied to catalysts, hydrocarbons, hydrocarbons, etc., can solve the problems of poor repeatability and harsh process requirements of oligomerization reaction process, and achieve catalytic effect and cost balance and good repeatability. , causing rapid effects

Active Publication Date: 2020-05-12
CHINA PETROLEUM & CHEM CORP +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, it is generally believed that water and oxygen are very unfavorable to the ethylene oligomerization process. CN200810111717.8 discloses a method for ethylene oligomerization, which is strictly controlled in an anhydrous and oxygen-free environment. Therefore, the current ethylene oligomerization reaction The process requirements are very harsh, resulting in very poor reaction initiation and repeatability of the oligomerization process

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
  • A kind of catalyst composition and application for ethylene oligomerization
  • A kind of catalyst composition and application for ethylene oligomerization
  • A kind of catalyst composition and application for ethylene oligomerization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The ethylene oligomerization reaction specifically includes the following steps: (1) Replace the reaction system by high temperature drying, vacuum replacement and other operations to ensure that there is no water and oxygen in the reaction system; (2) Use ethylene to replace the reaction system to make the reaction system The system is in an ethylene environment; (3) Add tert-butyl hydroperoxide and toluene solvent to the reaction kettle, add 1.37ml triethylaluminum toluene solution (concentration is 715μmol / ml), add 2ml 2-isobutyryl-chloride 5,6-dimethyl-1,10-phenanthroline-2,6-diethylaniline iron (II) complex (ie R 3 and R 4 is methyl, R 1 , R 2 , R 5 and R 6 After the toluene solution (concentration is 2.5 μ mol / ml) of hydrogen), make composition total amount be 100ml, wherein, take the weight of organic solvent (toluene) as calculation basis, the weight content of tert-butyl hydroperoxide is 25ppm, Al / Fe=196, after fully stirring, feed ethylene to start the ol...

Embodiment 2

[0026] With embodiment 1, difference is that the weight content of tert-butyl hydroperoxide is 100ppm. See Table 1 for the data.

Embodiment 3

[0028] With embodiment 1, difference is that the weight content of tert-butyl hydroperoxide is 250ppm. See Table 1 for the data.

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 catalyst composition used in an ethylene oligomerization reaction process and its application. The composition includes a main catalyst chlorinated substituted 2-isobutyryl-1,10-phenanthroline represented by formula (I). Phenolide-2,6-diethylaniline iron(II) complex, aluminum-containing cocatalyst and tert-butyl hydroperoxide. According to the present invention, the catalyst composition of the present invention is used in the ethylene oligomerization reaction process, which has very high oligomerization reaction activity, high selectivity of α-olefins, and the oligomerization reaction is initiated quickly, runs smoothly, and is repeatable. Good; even at a low aluminum / iron ratio, it still has very good oligomerization reaction activity; this overcomes the technical bias of those skilled in the art and achieves unexpected technical effects, and the catalytic effect and cost are better A good balance greatly reduces the cost of ethylene oligomerization reaction, has strong practicability and broad prospects for industrialization.

Description

technical field [0001] The invention relates to the field of ethylene oligomerization, in particular to a catalyst composition used in an ethylene oligomerization process. The present invention also relates to the use of the catalyst composition described above. Background technique [0002] Linear α-olefins are widely used in the fields of ethylene comonomers, surfactant synthesis intermediates, plasticizer alcohols, synthetic lubricating oils and oil additives. In recent years, with the continuous development of the polyolefin industry, the worldwide demand for α-olefins has grown rapidly. At present, the vast majority of α-olefins are prepared by ethylene oligomerization. The catalysts used in ethylene oligomerization mainly contain nickel series, chromium series, zirconium series and aluminum series etc. WO99 / 02472,1999), Gibson group (Gibson, V.C.et al, Chem.Commun., 1998,849-850; Chem.Eur.J., 2000,2221-2231) found some Fe(II) and Co( The tridentate pyridine imine c...

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): B01J31/22C07C2/22C07C11/107C07C11/02C07C11/08
CPCC07C2/22B01J31/143B01J31/183C07C2531/22B01J2531/842B01J2540/10B01J2531/0241B01J35/19C07C11/107C07C11/02C07C11/08Y02P20/52
Inventor 郑明芳刘珺张海英王怀杰吴红飞
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com