Acid-,base-free depolymerization of poly(ethylene terephthalate)(PET)with ethanol catalyzed by FeCl_(3),FeBr3(1.0–5.0 mol%)gave diethyl terephthalate(DET)and ethylene glycol(EG)exclusively(98–99%,160–180°C),an...Acid-,base-free depolymerization of poly(ethylene terephthalate)(PET)with ethanol catalyzed by FeCl_(3),FeBr3(1.0–5.0 mol%)gave diethyl terephthalate(DET)and ethylene glycol(EG)exclusively(98–99%,160–180°C),and FeCl_(3)showed better catalytic performance in terms of activity.The FeCl_(3)catalyst enabled exclusive,selective depolymerization of PET from textile waste to afford DET(and recovered cotton waste),strongly suggesting the possibility of chemical recycling of cloth waste by the transesterification in this catalysis.展开更多
基金supported by JST-CREST(grant number JPMJCR21L5)the authors express their thanks to Ms.Yuriko Ohki and Mr.Asahi Tanaka(Tokyo Metropolitan University)for some technical support。
文摘Acid-,base-free depolymerization of poly(ethylene terephthalate)(PET)with ethanol catalyzed by FeCl_(3),FeBr3(1.0–5.0 mol%)gave diethyl terephthalate(DET)and ethylene glycol(EG)exclusively(98–99%,160–180°C),and FeCl_(3)showed better catalytic performance in terms of activity.The FeCl_(3)catalyst enabled exclusive,selective depolymerization of PET from textile waste to afford DET(and recovered cotton waste),strongly suggesting the possibility of chemical recycling of cloth waste by the transesterification in this catalysis.
