A kind of ethylene tetramerization catalyst composition and ethylene tetramerization method

An ethylene tetramerization and composition technology, which is applied to the catalyst composition of ethylene tetramerization and the field of ethylene tetramerization, can solve the problems of high cost, cumbersome preparation steps, harsh process requirements, etc. Impact strength improvement effect
CN105562102BActive Publication Date: 2017-12-19CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2017-12-19

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Abstract

The present invention relates to a kind of ethylene tetramerization catalyst composition, comprises catalyst ligand shown in formula I, transition metal compound, aluminum-containing cocatalyst, water and organic solvent; Wherein R1, R2, R3 and R4 are same or different, each independently selected from hydrogen, alkyl, alkoxy, cycloalkyl or halogen; the two R5 present may be the same or different, each independently selected from monocyclic or polycyclic aryl. The present invention also provides a method for ethylene tetramerization, comprising performing ethylene tetramerization in the presence of the catalyst composition for ethylene tetramerization.
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Description

technical field

[0001] The invention relates to the field of ethylene oligomerization, in particular to a catalyst composition for ethylene tetramerization. The present invention also relates to a method for ethylene tetramerization. Background technique

[0002] As an important organic raw material and chemical intermediate, 1-octene is mainly used to produce high-quality polyethylene (PE). The linear low-density polyethylene (LLDPE) produced by the copolymerization of 1-octene and ethylene can significantly improve the properties of PE, especially the mechanical properties, optical properties, tear strength and impact strength of polyethylene. , very suitable for packaging films and agricultural covering films such as greenhouses and sheds. At the same time, 1-octene is also used as an intermediate for plasticizers, fatty acids, alcohols for detergents, and lubricating oil additives.

[0003] Although the value of 1-octene is well known, the art is currently not producin...

Claims

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