On Magnesium Deposite Produced by Reduction of Dolomite with Fe-Si Alloy

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  • ドロマイトのFe-Si還元による生成Mgについて
  • ドロマイト ノ Fe-Si カンゲン ニ ヨル セイセイ Mg ニ ツイテ

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Abstract

By studying the crystal size of magnesium deposite, the temperature range in which magnesium is condensed and the distribution of impurities in the subject reduction the following results were obtained. (1) With the rise of reduction temperature and the temperature gradient in the sleeve, magnesium condenses at the higher temperature side and becomes more coarse at the position of the water jacket (b) in Fig. 1. It is desirable to set the water jacket at the position of (a) for production of fine grains of magnesium. (2) With higher vacuum, magnesium condenses at the lower temperature side in the sleeve and becomes rather fine. (3) In longitudinal direction, Mn, Cu, Al and Si are distributed poorly in the middle part and densely in both ends of the sleeve, while Zn shows high value at the lower temperature side. (4) Most of the impurity metals show high values of distribution at the first stage of reduction and then decrease in content in the radial direction.

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