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AssigneeKorea Research Institute of Chemical Technology
InventorsSoo Bok Lee, In Jun Park, Dong-Kwon Kim, Jeong-Hoon Kim, Jong-Wook Ha, Bong-Jun Chang, Kwang-won Lee, Kwang-Han Kim, Jaewon Kim
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The present invention relates to a method for preparing hexafluoropropylene oxide with high yield, and particularly to a method for preparing hexafluoropropylene oxide comprising the step of performing a two-phase interfacial reaction between an organic phase containing hexafluoropropylene and an aqueous phase containing a hypochlorite oxidant in the presence of a phase-transfer catalyst and a non-ionic surfactant to improve the degree of emulsification and dispersion of the organic phase and to increase the contact interfacial area, thereby increasing the efficiency and the yield of the reaction.
A method for preparing a hexafluoropropylene oxide, comprising the step of performing a two-phase interfacial reaction between an organic phase containing hexafluoropropylene and an aqueous phase containing a hypochlorite oxidant in the presence of a phase-transfer catalyst, wherein the interfacial reaction is performed by using a non-ionic surfactant having an amine oxide group and perfluoroalkyl group of CnF2n+1CH2CH2—, n=3−21 in the amount of 0.1-5 wt % relative to the total weight of the aqueous phase and the organic phase.
A method for preparing a hexafluoropropylene oxide, comprising the step of performing a two-phase interfacial reaction between an organic phase containing hexafluoropropylene and an aqueous phase containing a hypochlorite oxidant in the presence of a phase-transfer catalyst, wherein the interfacial reaction is performed by using a non-ionic surfactant of C17H25NO(CH3)2in the amount of 0.1-5 wt % relative to the total weight of the aqueous phase and the organic phase.
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