ホリ ヒサオ   Hori Hisao
  堀 久男
   所属   神奈川大学  理学部 化学科
   職種   教授
言語種別 英語
発行・発表の年月 2020/04
形態種別 学術雑誌
査読 査読あり
標題 Complete Mineralization of Fluorinated Ionic Liquids in Subcritical
Water in the Presence of Potassium Permanganate
執筆形態 共著
掲載誌名 Industrial and Engineering Chemistry Research
掲載区分国外
出版社・発行元 American Chemical Society
巻・号・頁 59(13),pp.5566-5575
著者・共著者 Hisao Hori, Satomi Oishi, Hiroki Kato, Ryota Kodama
概要 Reactions of [Me3PrN][(CF3SO2)2N] and [C3mpip][(CF3SO2)2N] (C3mpip = 1-methyl-1-propylpiperidium) in subcritical water were investigated to develop a technique for recycling fluorine element. By adding KMnO4 to the system, quasi complete
mineralization of the ionic liquids was achieved at 300 oC. When [Me3PrN][(CF3SO2)2N] was reacted for 18 h with 158 mM KMnO4, F−, SO42−, and NO3
− yields were 98, 98, and 91%, respectively, and the amount of total organic carbon (TOC) was below the detection limit. [C3mpip][(CF3SO2)2N] was also almost completely mineralized via the same treatment, affording F−, SO42−, and NO3− yields of 94, 97, and 96%, respectively, with no detectable TOC. The rest of the nitrogen atoms were well accounted for by the formation of NO2−. Compared with a previous reported method using FeO, our approach reduces the reaction temperature for complete mineralization by 76 °C and suppresses the formation of environmentally undesirable CHF3.
DOI 10.1021/acs.iecr.9b06198