海底砂鉄中に含まれる燐分の存在状態について

概要

論文の詳細を見る
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. Since the author discovered experimentally, in connection with this, an interesting instance of surface adsorption of phosphor, he will report here on it. 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. 2) When concentrate was boiled unground in 5% HNO_3 solution, the value of the greater part of phosphor could be obtained from the solution. 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.
社団法人日本鉄鋼協会の論文
1964-05-01