Recovery of Iron from Chromium Vanadium-Bearing Titanomagnetite Concentrate by Direct Reduction

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• 作者：Mingyu Wang ; Shengfan Zhou ; Xuewen Wang ; Bianfang Chen ; Haoxiang Yang ; Saikui Wang…
• 刊名：JOM Journal of the Minerals, Metals and Materials Society
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：68
• 期：10
• 页码：2698-2703
• 全文大小：856 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Materials Science
  Metallic Materials
  Nanotechnology
  Crystallography
  
• 出版者：Springer Boston
• ISSN：1543-1851
• 卷排序：68

文摘

The recovery of iron from chromium vanadium-bearing titanomagnetite concentrate was investigated by direct reduction, followed by magnetic separation. The results indicated that the metallization rate of iron can reach 98.9% at a temperature of 1200°C for a reduction duration of 60 min with the addition of 16% graphite powder and 0.5% sodium oxalate. Although the addition of borax, sodium carbonate and sodium oxalate to the chromium vanadium-bearing titanomagnetite concentrate can all improve the metallization rate of iron, the effect of sodium oxalate was the best. Sodium oxalate not only increases the metallization rate of iron but also promotes the growth of metallic iron. After magnetic separating, the recovery of iron was 92.8% and the iron content of magnetic concentrate was 88.4%.