ウォルフラマイト微粒子のキャリア浮選に関する研究 Studies on Carrier Flotation of Ultrafine Wolframite

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著者

    • 沼田 芳明 NUMATA Yoshiaki
    • 秋田大学工学資源学部環境物質工学科 Faculty of Engineering and Resource Science, Akita University, Akita 010–8502
    • 藤田 豊久 FUJITA Toyohisa
    • 秋田大学工学資源学部環境物質工学科 Faculty of Engineering and Resource Science, Akita University, Akita 010–8502

抄録

Carrier flotation of ultrafine wolframite (-5μm) was investigated using coarse wolframite (37∼53μm, etc.) as carriers and sodium oleate as collector. Effects of some factors on the carrier flotation of ultrafine wolframite were studied. It was found that the recovery of ultrafine wolfromite was significantly increased from about 41 % by conventional flotation to 76 % by carrier flotation. Furthermore, the recovery of ultrafine wolframite was enhanced from 76 % to 97 % by addition of Fe3+ ions during carrier flotation. Similar results were obtained for flotation of a mixture of wolframite (-5μm) and quartz (-10μm). The improved flotation results were explained by the size enlargement of the ultrafine wolframite due to the addition of carriers and stirring at high speed. The collision energy between the coarse and ultrafine particles is much greater than that between ultrafine particles. Therefore, aggregation between coarse and ultrafine particles occurs more easily. The stability of aggregate of particles is also strengthened with the addition of sodium oleate due to the hydrophobic forces between particles. Fe+3 ions decrease the zeta potential of the particles, lower the energy barrier between particles and promote aggregation.

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 115(3), 164-171, 1999-03-25 

    The Mining and Materials Processing Institute of Japan

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各種コード

  • NII論文ID(NAID)
    10002469275
  • 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
    4786594
  • 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  CJP引用  NDL  J-STAGE 
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