Amino-silicone bridge nitrogen-blending allyl zirconium catalyst and preparation method and application thereof

A technology of heteroallyl zirconium and heteroallyl lithium, which is applied in the field of ethylene polymerization IVB transition metal catalyst, can solve the problems of complicated preparation of raw materials, limited application and promotion, low catalytic activity, etc., and achieves simple and easy-to-obtain raw materials and high Catalytic activity, effect of simple preparation method
CN101786018AInactive Publication Date: 2010-07-28SHANXI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANXI UNIV
Publication Date
2010-07-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides an amino-silicone bridge nitrogen-blending allyl zirconium catalyst, relating to a vinyl-polymerization IVB transition metal catalyst, in particular to a nitrogen-blending allyl ligand zirconium catalyst with an N-C-C-Si-N skeleton. The preparation method of the catalyst comprises the following steps of: dehydrogenating ketimine containing a substituent group in the protection of nitrogen by using lithium diisopropylamide (LDA); adding equimolar magnesium bromide to obtain magnesium salts A and then adding equimolar silane compounds to prepare a compound B; dehydrogenating once again by using the LDA to prepare amino-silicone bridge nitrogen-blending allyl lithium C; and finally reacting with ZrC14 to obtain the amino-silicone bridge nitrogen-blending allyl zirconium catalyst. The preparation method has the advantages of simplicity, simple and easy obtainment of materials, low cost and higher yield; and the catalyst displays very high catalytic activities when used for vinyl polymerization.
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Description

technical field

[0001] The invention relates to ethylene polymerization IVB transition metal catalysts, in particular to a zirconium complex catalyst with an N-C-C-Si-N skeleton, more specifically to an amino-silicon-bridged azaallyl Zirconium-based catalyst and its preparation method and application. Background technique

[0002] At present, industrial olefin polymerization catalysts include Ziegler-Natta catalysts, Phillips catalysts and metallocene catalysts. These catalysts can control the catalytic activity and polymer properties by adjusting the structure of the ligand. Among them, the reports of aziallyl metal compound catalysts are very rare, and there are disadvantages such as complex raw material preparation process, high price, low yield and low catalytic activity, which limit the development of this type of azaallyl metal compound catalysts. App promotion. Contents of the invention

[0003] The object of the present invention is to provide an amino silicon-br...

Claims

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