On the Constitution of Phosphor Contained in Undersea Iron Sand

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  • 海底砂鉄中に含まれる燐分の存在状態について
  • カイテイ サテツ チュウ ニ フクマレル リン ブン ノ ソンザイ ジョウタイ ニ ツイテ

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In view of very high content of phosphor found in a part of undersea iron sand which is recently developed in Japan as an unused mineral, enthusiastic efforts are being made at each research institute concerned to discover phosphor-containing minerals mixed in iron sand as the basic study of dephosphorization method.<BR>Since the author discovered experimentally, in connection with this, an interesting instance of surface adsorption of phosphor, he will report here on it.<BR>1) When iron sand concentrate was burned unground and daubed on its surface with ammonium molybdate solution, plenty of phosphor was observed to get separated from the surface of iron sand.<BR>2) When concentrate was boiled unground in 5% HNO3 solution, the value of the greater part of phosphor could be obtained from the solution.<BR>3) There are various kinds of phosphorous compounds at sea bottom, which seem to have been adsorbed on the surface of iron sand that has strong affinity by nature.

Journal

  • Tetsu-to-Hagane

    Tetsu-to-Hagane 50 (5), 830-831, 1964

    The Iron and Steel Institute of Japan

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