Supported nonmetallocene catalyst, preparation and use thereof
AssigneesChina Petroleum & Chemical Corporation, Sinopec Yangzi Petrochemical Company Ltd.
InventorsHongping Ren, Chuanfeng Li, Xiaoli Yao, Feng Guo, Zhonglin Ma, Haibin Chen, Kaixiu Wang, Jingwei Liu, Yaming Wang
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Abstract
This invention relates to a supported nonmetallocene catalyst and preparation thereof. The supported nonmetallocene catalyst can be produced with a simple and feasible process and is characterized by an easily controllable polymerization activity. This invention further relates to use of the supported nonmetallocene catalyst in olefin homopolymerization/copolymerization, which is characterized by a lowered assumption of the co-catalyst as compared with the prior art.
Claims23
1-15. (canceled)
A process for producing a supported nonmetallocene catalyst, comprising the steps of:
- dissolving a magnesium compound and a nonmetallocene complex in a solvent, to obtain a magnesium compound solution;
- and drying the magnesium compound solution, or introducing into the magnesium compound solution a precipitating agent, to obtain the supported nonmetallocene catalyst.
A process for producing a supported nonmetallocene catalyst, comprising the steps of:
- dissolving a magnesium compound and a nonmetallocene complex in a solvent, to obtain a magnesium compound solution;
- drying the magnesium compound solution, or introducing into the magnesium compound solution a precipitating agent, to obtain a modified carrier;
- and treating the modified carrier with a chemical treating agent selected from the group consisting of a Group IVB metal compound to obtain the supported nonmetallocene catalyst.
Dependencies are inferred from the claim text.