Ethylene oligomerization catalyst composition and application thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of ethylene oligomerization and composition, which is applied in the field of ethylene oligomerization catalyst composition, can solve the problems of poor oligomerization process repeatability, high production cost, and harsh process requirements, and achieve rapid reaction initiation, stable operation, and repeatability Good results
Active Publication Date: 2017-10-24
CHINA PETROLEUM & CHEM CORP +1
View PDF7 Cites 4 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0003] The Institute of Chemistry, Chinese Academy of Sciences reported a catalyst for ethylene oligomerization and polymerization (Eur.J.Inorg.Chem.2009,4149–4156), which is 2-benzoxazolyl-6-acetylcondensate Amine Fe 2+ Chloride, under the action of co-catalyst methyl aluminoxane, when the molar ratio of the metal aluminum in the co-catalyst to the central metal in the main catalyst is 200-2000, and the reaction temperature is 30-50 ° C, oligomerization and Polymerization activity up to 10 7 g mol(Fe) -1 h -1 ; and whether methylalumoxane or modified methylalumoxane is used as a cocatalyst, the cost is too high and the consumption is too large. When the cocatalyst is used in large-scale ethylene oligomerization, it will inevitably lead to high cost
[0004] 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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0033] 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; then use ethylene to replace the reaction system so that the reaction system is in an ethylene environment; then add tert-butyl to the reaction kettle Hydrogen oxide and toluene solvent, add 1.37ml triethylaluminum toluene solution (concentration: 715μmol / ml), add 2ml 2-benzoxazolyl-6-acetyl chloride 2,6-diethylanilinate iron (II) after the toluene solution (concentration is 2.5 μ mol / ml), make composition total amount be 100ml, wherein, take the weight of organic solvent (being toluene) as calculation basis, the weight content of tert-butyl hydroperoxide is 25ppm , Al / Fe=196, after fully stirring, feed ethylene to start the oligomerization reaction; then keep the ethylene pressure at 1MPa and the reaction temperature at 30°C for 30 minutes; after the reaction is stopped, a small amount of reaction product is ...
Embodiment 2
[0036] With embodiment 1, difference is that the weight content of tert-butyl hydroperoxide is 100ppm. See Table 1 for the data.
Embodiment 3
[0038] 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
Login to view more
Abstract
The invention relates to an ethylene oligomerization catalyst composition which comprises a chloride 2-benzoxazolyl-6-acetyl condensed amino ferrite (II) complex shown in formula I, an aluminum-containing promoter and tert-butyl hydroperoxide. The invention further provides an ethylene oligomerization method. The ethylene oligomerization catalyst composition provided by the invention is applied to ethylene oligomerization, and is high in reaction activity at low temperature in the presence of low Al/Fe, that is, the reaction activity is up to 1.62*10<7>g.mol (Fe)<1>.h<1>.
Description
technical field [0001] The invention relates to the field of ethylene oligomerization, in particular to an ethylene oligomerization catalyst composition containing an acetylamide iron complex and an application thereof. 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 used catalyst of ethylene oligomerization mainly contains nickel series, chromium series, zirconium series and aluminum series etc., in recent years, Brookhart group (Brookhart, M et al, J.Am.Chem.Soc.,1998,120,7143-7144 ; WO99 / 02472,1999), Gibson group (Gibson, V.C.et al, Chem.Commun.,1998,849-850; Chem.Eur.J.,2000,2221-2231) found some Fe...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more