磁硫鉄鉱の自然酸化が浮選におよぼす2, 3の問題

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タイトル別名
  • The Effects of Aeration and Oxidation of Pyrrhotite on Flotation
  • ジリュウテッコウ ノ シゼン サンカ ガ フセン ニ オヨボス 2 , 3 ノ モンダイ

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In this paper, the effects of oxidation of pyrrhotite in room temperature and of aeration with oxygen in pulp of pyrrhotite were studied, and these results were mainly correlated with flotation. The main results are as follows:<BR>(A) Aeration in pulp<BR>1) The aeration with oxygen reduces the recovery of flotation of pyrrhotite. The flotation recovery with aeration of nitrogen is higher than that of aerated pulp with oxygen.<BR>2) The aeration with oxygen is detrimental to leaching of pyrrhotite in acid solution. The aeration with nitrogen gives a Fe extraction of 41%, on the other hand oxygen aerated pulp affords 5% extraction.<BR>(B) Oxidation in room temperature<BR>1) In the oxidation of pyrrhotite in room temperature, some amounts (6-15%) of water promote the reaction of oxidation.<BR>2) During the oxidation of pyrrhotite, elementaly sulphur and soluble iron compounds are produced, and floatability of oxidized pyrrhotite is chiefly proportional to the amounts of elementaly sulphur produced.<BR>3) The rates of oxygen consumption by sulphide minerals in the oxidation decrease in the following order; pyrrhotite, pyrite, chalcopyrite, zincblende and galena.

収録刊行物

  • 日本鑛業會誌

    日本鑛業會誌 80 (916), 881-886, 1964

    一般社団法人 資源・素材学会

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