Ｎａ２Ｏ‐ＳｉＯ２系スラグと溶融アンチモン間の不純物元素の分配平衡

• AKKARAPATTANAGOON Narong

  Research Institute of Mineral Dressing and Metallurgy, Tohoku University

• 武田 要一

  岩手大学工学部金属工学科

• 矢澤 彬

  東北大学選鉱製錬研究所

書誌事項

タイトル別名

• Distribution of impurities between Na2O-SiO2 slag and molten antimony.
• Na2O SiO2ケイ スラグ ト ヨウユウ アンチモンカン ノ フジュンブツ

抄録

Reduction smelting forming a soda base slag by addition of sodium salt is applied to the extraction of oxide ore or smelter recycles. To get a fundamental data on the reduction smelting of antimony, Na₂O-SiO₂ or FeOn-Na₂O slag was equilibrated with metallic antimony containing small amount of impurities such as Fe, As, Sn, Pb, Cu at 1423 K. Dependences of the antimony solubility in slag and the distribution ratios of impurities upon oxygen potential and slag composition were clarified.<BR>The solubility of antimony in slag increases with increase of oxygen potential and the soda-ratio of nNa₂O/(nNa₂O+nSiO₂). The activity coefficient of SbO_{1, 5} (1) in the basic slag of high soda-ratio varies from 1 to 0.001 depending on oxygen potential.<BR>Iron and arsenic are removable from crude antimony to soda base slag by control of oxygen potential and slag composition. While the acidic slag of low soda-ratio is suitable for removal of iron, the basic slag of high soda-ratio is effective to eliminate arsenic from crude antimony.

収録刊行物

• 資源と素材

  資源と素材 105 (12), 971-977, 1989

  一般社団法人 資源・素材学会

詳細情報

• CRID: 1390282680993819776
• NII論文ID: 130004099326
• NII論文ID: 40004805769
• NII書誌ID: AN10062646
• DOI: 10.2473/shigentosozai.105.971
• ISSN: 18806244
• ISSN: 09161740
• NDL書誌ID: 3260513
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3260513
• 本文言語コード: ja
• データソース種別:
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