CATALYTIC BEHAVIOR OF NiSO4/γ-Al2O3 FOR PROPENE OLIGOMERIZATION

Chinese Journal of Applied Chemistry ›› 1993, Vol. 0 ›› Issue (6): 23-26.

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CATALYTIC BEHAVIOR OF NiSO₄/γ-Al₂O₃ FOR PROPENE OLIGOMERIZATION

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

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

Abstract

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 H_o≤-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

Cai Tianxi, Qi Aihua, Cao Dianxue, Cai Fengxian, Zhang Liying, Zhang Rong, Li Luhui. CATALYTIC BEHAVIOR OF NiSO₄/γ-Al₂O₃ FOR PROPENE OLIGOMERIZATION[J]. Chinese Journal of Applied Chemistry, 1993, 0(6): 23-26.

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CATALYTIC BEHAVIOR OF NiSO₄/γ-Al₂O₃ FOR PROPENE OLIGOMERIZATION

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