中华医学超声杂志

应用化学 ›› 1993, Vol. 0 ›› Issue (6): 23-26.

• 研究论文 • 上一篇    下一篇

NiSO4/γ-Al2O3对丙烯齐聚反应的催化行为

蔡天锡, 齐爱华, 曹殿学, 蔡凤仙, 张丽英, 张荣, 李吕辉   

  1. 大连理工大学化工学院化学系 116012 大连
  • 收稿日期:1992-12-02 修回日期:1993-04-10 出版日期:1993-12-10 发布日期:1993-12-10

CATALYTIC BEHAVIOR OF NiSO4/γ-Al2O3 FOR PROPENE OLIGOMERIZATION

Cai Tianxi, Qi Aihua, Cao Dianxue, Cai Fengxian, Zhang Liying, Zhang Rong, Li Luhui   

  1. Department of Chemistry, School of Chemical Engineering, Dalian University of Science and Technology, 116012 Dalian
  • Received:1992-12-02 Revised:1993-04-10 Published:1993-12-10 Online:1993-12-10

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摘要： NiSO4/γ-Al2O3的酸性强烈影响其催化丙烯齐聚的活性。CO中毒实验和ESR表征证明,在反应过程中有Ni+产生,并成为反应的活性中心。推测NiSO4/γ-Al2O3上丙烯齐聚反应除通过酸中心上酸催化进行外,还通过Ni+上配位催化进行。

关键词: 丙烯, 齐聚反应, NiSO4, 酸催化, 配位催化

Abstract: The catalytic activity of NiSO4/γ-Al2O3 in propene oligomerization is greatly influenced by the acidity of the catalyst used. It was found that the acid sites related to propene oligomerization are only those of Ho≤-3.0. The generation of Ni+ and its role as an active site in the oligomerization were demonstrated by the electronspin resonance method (ESR) and CO poisoning. The oligomerization is believed to be proceeded by coordination catalysis over Ni+ as well as acid catalysis over the acid sites of the supported catalyst.

Key words: propene, oligomerization, nickel sulfate, acid catalysis, coordination catalysis

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