ビリジンまたはその誘導体の存在下でリン酸ジ-2-エチルヘキシルによる塩酸溶液からの希土類元素の液-液抽出 Liquid-Liquid Extraction of Rare-Earth Elements from Hydrochloric Acid Solutions by Di-(2-Ethylhexy1)-Phosphoric Acid in the Presence of Pyridine or Its Derivatives

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The distributions of trivalent rare-earth elements such as lanthanum, cerium, praseodymium, neodymium. samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium between hydrochloric acid solutions and solutions of di-(2-ethylhexyl)-phosphoric acid (DEHPA) + pyridine (py) or its derivatives in kerosene have been examined under different conditions. Infrared and nuclear magnetic resonance spectra were made for the organic extracts. As a result, the addition of pyridine or its derivatives gave the synergistic effect on the extraction of rare-earth elements from hydrochloric acid solutions by DEHPA. In those extraction systems, however, the variation of the distribution coefficients for rare-earth elements plotted as a fuction of their elements in the atomic numbers revealed the curve in tetrad effect similar to the extraction by DEHPA alone. It was found that the seperation factors of adjacent elements resemble each other.

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  • 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(4), 252-256, 1999-04-25 

    The Mining and Materials Processing Institute of Japan

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各種コード

  • NII論文ID(NAID)
    10002469499
  • 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
    4728194
  • 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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