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首页> 外文期刊>High temperature materials and processes >A Thermodynamic Analysis of the Selective Sulphidation of Nickel from a Nickeliferous Lateritic Ore
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A Thermodynamic Analysis of the Selective Sulphidation of Nickel from a Nickeliferous Lateritic Ore

机译：含镍红土矿石中镍选择性硫化的热力学分析

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摘要

The production of a nickel sulphide concentrate through selective sulphidation of a nickeliferous lateritic ore at temperatures lower than current smelting temperatures, is being studied as a potential production method for upgrading lateritic ores. The ability to produce such a nickel sulphide concentrate at economically attractive grades, while achieving reasonable nickel recoveries, relies on the conversion of the maximum amount of nickel oxide to sulphide, while minimizing the amount of iron sulphide. This paper examines the thermodynamic basis for this selective sulphidation. The analysis includes both pure component equilibrium as well as various solid and liquid solution phases, which are anticipated to set limits on the maximum achievable grade/recovery combinations. Thermodynamic calculations show that, for high iron limonitic ores, grades of up to 20 to 25 mass percent nickel should be possible, while maintaining recoveries of greater than 80 percent.
机译：通过研究在低于当前熔炼温度的温度下选择性硫化含镍红土矿石来生产硫化镍精矿，这是一种升级红土矿石的潜在生产方法。以经济上有吸引力的等级生产这种硫化镍精矿的能力，同时实现合理的镍回收率，取决于将最大量的氧化镍转化为硫化物，同时将硫化铁的量降至最低。本文研究了这种选择性硫化的热力学基础。该分析既包括纯组分平衡，也包括各种固液和液相溶液，预计会限制最大可达到的品位/回收率组合。热力学计算表明，对于高铁锂铁矿石，镍的品位应达到20％至25％（质量），同时回收率保持在80％以上。

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  • 来源
    《High temperature materials and processes》 |2012年第5期|p.603-611|共9页
  • 作者

    C. T. Harris; C. A. Pickles; J. G. Peacey;

  • 作者单位

    Robert M. Buchan Department of Mining, Queen's University, Kingston, Ontario, Canada, K7L 3N6;

    Robert M. Buchan Department of Mining, Queen's University, Kingston, Ontario, Canada, K7L 3N6;

    Robert M. Buchan Department of Mining, Queen's University, Kingston, Ontario, Canada, K7L 3N6;

  • 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
  • 关键词

    thermodynamic analysis; nickel sulphide concentrate; sulphidation;

    机译：热力学分析;硫化镍精矿;硫化;

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