SO3H-functionalized ionic liquid as efficient, green and reusable acidic catalyst system for oligomerization of olefins

Catalysis Communications

Volumn 4, Issue 11, 2003, Pages 597-601

  Gu, Yanlong ^a   Shi, Feng ^a   Deng, Youquan ^a  

^a LANZHOU INSTITUTE OF CHEMICAL PHYSICS   (China)

Author keywords

Catalysis; Ionic liquid; Olefins; Oligomerization

Indexed keywords

ACIDITY; ACTIVATION ANALYSIS; CATALYSIS; CATALYST SELECTIVITY; IONIC STRENGTH; OLIGOMERS; SOLVENTS; SULFUR COMPOUNDS;

IONIC LIQUIDS; OLIGOMERIZATION;

OLEFINS;

EID: 1642369564     PISSN: 15667367     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.catcom.2003.09.004     Document Type: Article

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23. 2 (368.36): calcd. C 29.34, H 4.10, N 7.61, S 17.41; found C 29.39, H 4.28, N 7.54, S 17.27. All reactions were conducted in a 90 ml autoclave with a glass tube inside equipped with magnetic stirring. In each reaction, 0.01 mol ionic liquid (7.2-8.6 g), 0.04 mol olefin were successively introduced and reacted at 120 °C for 6 h. After the reaction, cooled the autoclave to room temperature (the autoclave was cooled to -40 °C when gaseous olefin is used), then the upper organic phase containing the oligomeric products was simply separated from the ionic liquid by decantation. The dissolved organic product in ionic liquid can be removed by distillation under vacuum, and the distillate was combined with upper organic phase followed by GC analysis. The ionic liquid could be reused in next run without any additional treatment. Qualitative and quantitative analyses of organic products were conducted with a HP 6890/5973 GC/MS and a HP 1790 GC equipped with a FID detector. The concentration of reactant and product was directly given by the system of GC chemstation according to the area of each chromatograph peak.