Tri-butyl citrate(TBC) is synthesized by using several kinds of ionic liquids as catalyst.The results show that the functionalized Brnsted acid ionic liquid([TEA-PS]) is the best catalytic among them;and use it as c...Tri-butyl citrate(TBC) is synthesized by using several kinds of ionic liquids as catalyst.The results show that the functionalized Brnsted acid ionic liquid([TEA-PS]) is the best catalytic among them;and use it as catalyst to optimize the reaction conditions:the proportion of reaction materiel is 1∶3.8(citric acid∶1-butanol);reaction temperature is 130℃;reaction time is 3.5h;cat./citric acid=15∶100(wt);the conversion of citric acid up to 99%.After simply separated from the products and treated with diethyl ether,the ionic liquid could be reused 8 times without noticeably decreasing in the catalytic activity.Therefore,an environmental friendly approach for synthesis of TBC could be provided with the ionic liquid as catalysts.展开更多
文摘Tri-butyl citrate(TBC) is synthesized by using several kinds of ionic liquids as catalyst.The results show that the functionalized Brnsted acid ionic liquid([TEA-PS]) is the best catalytic among them;and use it as catalyst to optimize the reaction conditions:the proportion of reaction materiel is 1∶3.8(citric acid∶1-butanol);reaction temperature is 130℃;reaction time is 3.5h;cat./citric acid=15∶100(wt);the conversion of citric acid up to 99%.After simply separated from the products and treated with diethyl ether,the ionic liquid could be reused 8 times without noticeably decreasing in the catalytic activity.Therefore,an environmental friendly approach for synthesis of TBC could be provided with the ionic liquid as catalysts.
