...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fuel >Modes of occurrence of fluorine in the Late Paleozoic No. 6 coal from the Haerwusu Surface Mine, Inner Mongolia, China
【24h】

Modes of occurrence of fluorine in the Late Paleozoic No. 6 coal from the Haerwusu Surface Mine, Inner Mongolia, China

机译：内蒙古哈尔乌苏露天矿晚古生代6号煤中氟的赋存方式

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 No. 6 coal from the Haerwusu Surface Mine, Inner Mongolia, China, is enriched in Al and Ga, which are valuable metal resources that could be extracted from fly ash. However, fluorine in the coal is unusually high (mean 286 μg/g) and potentially toxic to the environment in the extraction process. In this paper, a sequential extraction/density separation procedure (SE/DS) was designed to examine the modes of occurrence of fluorine in the coal. The results show that fluorine extracted in distilled water, NH_4Ac (1 mol/1), and HC1 (0.5%) leachates is low, and that in sulfide fraction is below the detection limit. The organic and silicate associations are inferred to account for more than 90% of the total fluorine in the coal. Boehmite and kaolinite are prime carriers of fluorine (the fluorine content in silicate fraction of the boehmite-enriched sample H-14 is up to 1906 ug/g, and that of the kaolinite-enriched sample H-29 is 384 ug/g). In bench samples H-2 and H-3, a minor amount of fluorine is related to goyazite. The relationship between fluorine and boehmite indicates that they were probably derived from the sediment source region, the weathered bauxite of the uplifted Benxi Formation situated to the northeastern Jungar coalfield.
机译：来自中国内蒙古哈尔乌苏露天煤矿的6号煤富含Al和Ga，这是可以从粉煤灰中提取的宝贵金属资源。但是，煤中的氟异常高（平均286μg/ g），并且在提取过程中可能对环境有毒。本文设计了一种顺序萃取/密度分离程序（SE / DS），以检查煤中氟的生成方式。结果表明，在蒸馏水中提取的氟，NH_4Ac（1 mol / 1）和HCl（0.5％）的浸出液中的氟含量低，并且硫化物中的氟含量低于检出限。推断有机和硅酸盐缔合占煤中总氟的90％以上。勃姆石和高岭石是氟的主要载体（富含勃姆石的样品H-14的硅酸盐级分中的氟含量高达1906 ug / g，富含高岭石的样品H-29的氟含量为384 ug / g）。在工作台样品H-2和H-3中，少量的氟与方沸石有关。氟和勃姆石之间的关系表明，它们可能来自沉积物源区，即准Jun尔煤田东北部隆起的本溪组风化铝土矿。

著录项

  • 来源
    《Fuel》 |2011年第1期|p.248-254|共7页
  • 作者

    Wang Xibo; Dai Shifeng; Sun Yingying; Li Dan; Zhang Weiguo; Zhang Yong; Luo Yangbing;

  • 作者单位

    State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), D11, Xueyuan Road, Haidian District, Beijing 100083, China School of Geosciences and Surveying Engineering, China University of Mining and Technology (Beijing), D11, Xueyuan Road, Haidian District, Beijing 100083, China;

    State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), D11, Xueyuan Road, Haidian District, Beijing 100083, China School of Geosciences and Surveying Engineering, China University of Mining and Technology (Beijing), D11, Xueyuan Road, Haidian District, Beijing 100083, China;

    State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), D11, Xueyuan Road, Haidian District, Beijing 100083, China School of Geosciences and Surveying Engineering, China University of Mining and Technology (Beijing), D11, Xueyuan Road, Haidian District, Beijing 100083, China;

    State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), D11, Xueyuan Road, Haidian District, Beijing 100083, China School of Geosciences and Surveying Engineering, China University of Mining and Technology (Beijing), D11, Xueyuan Road, Haidian District, Beijing 100083, China;

    State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), D11, Xueyuan Road, Haidian District, Beijing 100083, China School of Geosciences and Surveying Engineering, China University of Mining and Technology (Beijing), D11, Xueyuan Road, Haidian District, Beijing 100083, China;

    State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), D11, Xueyuan Road, Haidian District, Beijing 100083, China School of Geosciences and Surveying Engineering, China University of Mining and Technology (Beijing), D11, Xueyuan Road, Haidian District, Beijing 100083, China;

    State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), D11, Xueyuan Road, Haidian District, Beijing 100083, China School of Geosciences and Surveying Engineering, China University of Mining and Technology (Beijing), D11, Xueyuan Road, Haidian District, Beijing 100083, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    fluorine; modes of occurrence; boehmite; coal; inner mongolia;

    机译：氟;发生方式;勃姆石煤;内蒙古;

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