...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fuel >Effect of leaching high sulphur subbituminous coal by potassium hydroxide and acid on removal of mineral matter and sulphur
【24h】

Effect of leaching high sulphur subbituminous coal by potassium hydroxide and acid on removal of mineral matter and sulphur

机译：氢氧化钾和酸浸出高硫亚烟煤对去除矿物质和硫的影响。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The effect of leaching coal samples from Boragolai and Ledo collieries of Makum coal fields, Assam, situated in north eastern region of India with potassium hydroxide solution alone at 95 and 150℃ as well as followed by mild acid on demineralization and desulphurization was investigated. Potassium hydroxide alone leads to 2-19% demineralization and 16-30% desulphurization of the coal samples at 95℃. Demineralization of the coals decreases to 1-11 and desulphurization increases to 26-43% on increasing the temperature to 150℃. The decrease in demineralization is due to increased precipitation of potassium aluminosilicates. Demineralization of the coal may be enhanced to 28-45 and 39-68% and desulphurization to 22-35 and 34-53% at 95 and 150 ℃, respectively, by leaching the potassium hydroxide treated coal with 10% hydrochloric acid which decomposes the potassium aluminosilicates to certain extent. The treatment almost completely remove the inorganic and up to 37% organic sulphur from the coal samples.
机译：研究了印度东北部阿萨姆邦马库姆煤田Boragolai和Ledo煤矿的煤样品在95和150℃下单独用氢氧化钾溶液浸提，然后再用弱酸浸提对脱矿和脱硫的影响。在95℃下，仅氢氧化钾会导致2-19％的脱盐和16-30％的煤样品脱硫。当温度升至150℃时，煤的脱盐率降至1-11，脱硫率升至26-43％。脱矿质的减少是由于铝硅酸钾的沉淀增加。用10％的盐酸浸出氢氧化钾处理过的煤使其分解，在95和150℃下煤的脱盐率分别提高到28-45和39-68％，脱硫到22-35和34-53％。铝硅酸钾在一定程度上。处理几乎完全从煤样品中除去了无机硫和高达37％的有机硫。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号