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Synthesis of a novel triple-site diphosphinoamine (PNP) ligand and its applications in ethylene tetramerization

  • Articles/Polymer Chemistry
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Chinese Science Bulletin

Abstract

A novel triple-site diphosphinoamine (PNP) ligand was synthesized and characterized. In combination with Cr(III) and methylaluminoxane (MAO), it generated active catalytic systems for ethylene tetramerization toward 1-octene with high catalytic activity and long lifetime. The effects of reaction temperature, molar ratio of Al/Cr and molar ratio of ligand/Cr on catalytic activity and selectivity to 1-octene were studied with reaction kinetics of the catalytic system for ethylene tetramerization described. At the Al/Cr molar ratio of 100, the catalytic activity is up to 2.29x106 g·mol−1 (Cr)·h−1 and the selectivity to 1-octene is 49.65 wt%.

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Authors and Affiliations

  1. Department of Chemistry and Chemical Engineering, Daqing Petroleum Institute, Daqing, 163318, China

    GuoLiang Mao, YingNan Ning, WenBo Hu, ShanMing Li, XianFeng Song, Bo Niu & Tao Jiang

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  1. GuoLiang Mao
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  2. YingNan Ning
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  3. WenBo Hu
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  4. ShanMing Li
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  5. XianFeng Song
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  6. Bo Niu
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  7. Tao Jiang
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Corresponding author

Correspondence to Tao Jiang.

Additional information

Supported by the Program for New Century Excellent Talents in University (NCET) and the Program for New Century Excellent Talents in Heilongjiang Provincial Universities (Grant No. NCET-06-010)

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Mao, G., Ning, Y., Hu, W. et al. Synthesis of a novel triple-site diphosphinoamine (PNP) ligand and its applications in ethylene tetramerization. Chin. Sci. Bull. 53, 3511–3515 (2008). https://doi.org/10.1007/s11434-008-0479-y

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  • DOI: https://doi.org/10.1007/s11434-008-0479-y

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