還元マンガン鉱石中の金属マンガンと酸化第一マンガンの分別定量法

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タイトル別名
  • Fractional Determination of Metallic Manganese and Manganese Monoxide in Reduced Manganese Ores
  • カンゲン マンガン コウセキ チュウ ノ キンゾク マンガン ト サンカ ダイイチ マンガン ノ フンベツ テイリョウホウ

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抄録

For the production of ferro-manganese or silico-manganese with a good yield it is essential to obtain accurate results of rational analysis and of reduction test of the raw materials, and for the reduction test it is required to carry out an adegnate state analysis of reduced manganese ore. Various aqueous salt solutions and halogenated organic solvents were tried to dissolve metallic manganese fraction alone in the material to be tested but they were all found unsuitable because manganese monoxide is more or less dissolved out together with the metallic fraction. A treatment of 0.10 to 0.20 g of reduced manganese ore sample in a 30-mL methyl alcohol solution, containing 5 g of mercuric chloride kept at 70°C for an hour, was found most suitable to bring only the metallic manganese fraction into solution with only a negligible amount of manganese monoxide. Then the solution is filtered and washed thoroughly with methyl alcohol, and the combined solution of filtrate and washing solvent is used for the determination of manganese by means of ferrous-permanganate method after oxidation with persulfate.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 24 (4), 217-221, 1960

    公益社団法人 日本金属学会

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