ホリ ヒサオ   Hori Hisao
  堀 久男
   所属   神奈川大学  理学部 理学科
    神奈川大学大学院  理学研究科 理学専攻(化学領域)
   職種   教授
発表年月日 2023/06/19
発表テーマ Efficient Mineralization of Poly(vinylidene fluoride) and Related Copolymers Using Superheated Water in the Presence of Alkaline Reagent
発表学会名 Fluoropolymer 2023
主催者 American Chemical Society (ACS) Division of Polymer Chemistry
学会区分 国際学会
発表形式 口頭(招待・特別)
単独共同区分 共同
招待講演 招待講演
国際共著 国際共著
国名 アメリカ合衆国
開催地名 Denver
開催期間 2023/06/18~2023/06/21
発表者・共同発表者 Hisao Hori,1 Jin Hamaura,1 Ryo Honma,1 Abdelatif Manseri,2 Bruno Ameduri2

1 Faculty of Science, Kanagawa University, 2 Institut Charles Gerhardt, Univ Montpellier
概要 Owing to their high stability, fluoropolymers (FPs) are used in many industrial equipment. While usages of the FPs have widely spread, waste treatment techniques do not catch up with their increasing demand. Incineration is an option to treat these wastes. However, HF gas generated during the treatment seriously damages refractory bricks of incinerators. If the FPs could be decomposed to fluoride ions by means of environmentally benign techniques, the well-established protocol for treatment of fluoride ions could be used, whereby calcium hydroxide is added to the system to form calcium fluoride, which is a raw material for hydrofluoric acid.
We report herein an effective method for complete decomposition of PVDF and related copolymers to fluoride ions, by means of superheated water in the presence of an alkaline reagent.