鉄鋼中の稀土金属の分離法

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タイトル別名
  • Separation of Rare Earth Elements in Iron and Steel
  • テッコウ チュウ ノ キド キンゾク ノ ブンリホウ

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抄録

Recently Mischmetall is often used to manufacture high-alloy steels. This technique requires the establishment of adequate methods of chemical analysis for the rare earth elements in iron and steel. In the present paper a method was introduced which is superior in simplicity, rapidity and accuracy than those ever used in this field. In these methods, rare earth elements were isolated from the many coexisting metals by one of the following three methods. (1) The principal constituent, iron, was extracted by methyl-isbutylketone, then the remaining Fe and Cr were separated by electrolysis and next the rare earth elements were separated by precipitation as fluorides. (2) For the sample containing tungsten, the precipitated WO3 was redissolved in ammonia water and adding HF, the rare earth elements were regained as fluorides. (3) The sample was dissolved in perchloric acid and hydrofluoric acid, and the rare earth elements were separated directly as fluorides.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 23 (5), 267-270, 1959

    公益社団法人 日本金属学会

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