ケロシンを用いたオフィス古紙の共凝集磁選 Coagulation and Magnetic Deinking of Waste Office Paper Using Kerosene

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著者

    • 大木 達也 OKI Tatsuya
    • 産業技術総合研究所 環境調和技術研究部門粒子分離グループ National Institute of Advanced Industrial Science and Technology (AIST)
    • 四元 弘毅 [他] YOTSUMOTO Hiroki
    • 産業技術総合研究所 環境調和技術研究部門粒子分離グループ National Institute of Advanced Industrial Science and Technology (AIST)
    • 田沼 洋和 TANUMA Hirokazu
    • 早稲田大学理工学研究科環境資源及材料理工学専攻修士課程 Graduate Student, Graduate School of Waseda University
    • 竹内 雄 TAKEUCHI Yuu
    • 早稲田大学理工学研究科環境資源及材料理工学専攻修士課程 Graduate Student, Graduate School of Waseda University

抄録

Recently, a new method for deinking waste officer paper by magnetic separation after hetero-coagulation of magnetic and non-magnetic toner has been reported. The selection of flocculants which can produce large and strong coagulates is very important to reject toner coagulates effectively in this method. 1-octadecanol whose melting point is 60 °C is used in their report. Coagulation was carried out at 70 °C and then the 1-octadecanol liquid was cooled to make strong solid coagulates. Although high toner liberation must also be achieved before magnetic separation to obtain high deinking and paper recovery, no investigations on liberation methods were done in that report. A paper disintegration method using kerosene was reported in our previous paper, and it was shown that almost 100 % of toner liberation could be attained. As kerosene has ability to soften toner, strong coagulates may be produced by that adhesion when used as a flocculant. In this study, the size of liberated toner by the kerosene disintegration method has been investigated, and the bonding strength between toner particles by adding kerosene as a flocculant has been compared with that by 1-octadecanol. After these investigations, coagulating and deinking properties of kerosene and that of 1-octadecanol have been compared by rejecting toner coagulates with a NdB magnet. From the results, close to 100 % of deinking can be expected with little paper loss even in room temperature because large and strong coagulates can be produced by the use of kerosene as a flocculant. When kerosene was used in the disintegration and coagulation stages, the average coagulate size was 1114um and 98.4 % of deinking was attained by separation with the NdB magnet.

収録刊行物

  • 資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan

    資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan 118(3), 185-190, 2002-04-25

    The Mining and Materials Processing Institute of Japan

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各種コード

  • NII論文ID(NAID)
    10008226312
  • NII書誌ID(NCID)
    AN10062646
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09161740
  • NDL 記事登録ID
    6151615
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-315
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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