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Fundamental Study of an Ambient Temperature Ferrite Process in the Treatment of Acid Mine Drainage

机译:常温铁氧体工艺处理酸性矿山排水的基础研究

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摘要

The feasibility of making ferrite at ambient temperature from solutions of simulated acid mine drainage is explored. The X-ray diffraction and saturation magnetization of the precipitates obtained clearly show that the spinel ferrite can be made at ambient conditions and pH 9-11. The optimum molar ratio of Fe~(3+) to Fe~(2+), a critical parameter for ferrite formation, is found to be 1.75. The effect of [Zn~(2+)] and [Ca~(2+)] in solution on ferrite formation was investigated. The former has no effect on the magnetic properties of ferrite, but the saturation magnetization of the ferrite decreases with an increase of [Ca~(2+)]. The results suggest that an ambient temperature ferrite process for acid mine drainage is worthy of further investigation.
机译:探索了用模拟酸性矿山排水溶液在环境温度下制备铁氧体的可行性。所获得的沉淀物的X射线衍射和饱和磁化清楚地表明,可以在环境条件和pH 9-11下制备尖晶石铁氧体。发现Fe〜(3+)与Fe〜(2+)的最佳摩尔比为铁素体形成的关键参数,为1.75。研究了溶液中[Zn〜(2+)]和[Ca〜(2+)]对铁素体形成的影响。前者对铁氧体的磁性能没有影响,但是铁氧体的饱和磁化强度随[Ca〜(2+)]的增加而降低。结果表明,用于酸性矿山排水的常温铁氧体工艺值得进一步研究。

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  • 来源
    《Environmental Science & Technology》 |1996年第8期|p.2604-2608|共5页
  • 作者单位

    Department of Mining & Metallurgical Engineering, McCill University, 3450 University Street, Montreal, Quebec, Canada H3A 2A7;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 环境化学;
  • 关键词

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