| 煤中砷赋存状态与其脱洗率的关系 |
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| 引用本文： | 王明仕,郑宝山,R B Finkelman,胡军,吴代赦,李社红. 煤中砷赋存状态与其脱洗率的关系[J]. 燃料化学学报, 2005, 33(2): 253-256 |
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| 作者姓名： | 王明仕 郑宝山 R B Finkelman 胡军 吴代赦 李社红 |
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| 作者单位： | 中国科学院地球化学研究所,环境地球化学国家重点实验室,贵州,贵阳,550002;中国科学院研究生院,北京,100039;中国科学院地球化学研究所,环境地球化学国家重点实验室,贵州,贵阳,550002;National Center,U.S.Geological Survey,Reston VA 20192,USA |
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| 基金项目： | 国家自然科学基金(40133010)。~~ |
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| 摘 要： | 煤中砷是环境危害敏感有害微量元素之一，美国在1990年通过的清洁空气法修正案，对包含砷在内的11种微量元素表示关切。Swaine也把煤中砷列为对人类明显有害的元素之一。由于燃煤，砷曾经引起过诸多环境问题，在这些问题中尤以捷克和我国因燃用高砷煤所引发的环境问题最为突出。在捷克某使用高砷煤的发电厂下行风向的蜜蜂大量死亡，而我国则在贵州西南出现了大批的砷中毒患。
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| 关 键 词： | 原煤 洗煤 砷 脱洗率 赋存状态 |
| 文章编号： | 0253-2409(2005)02-0253-04 |
| 收稿时间： | 2004-07-13 |
| 修稿时间： | 2004-07-13 |
Relationship between occurrence mode of arsenic in coal and its washing rate |
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| WANG Ming-shi,ZHENG Bao-shan,R B Finkelman,HU Jun,WU Dai-she,LI She-hong. Relationship between occurrence mode of arsenic in coal and its washing rate[J]. Journal of Fuel Chemistry and Technology, 2005, 33(2): 253-256 |
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| Authors: | WANG Ming-shi ZHENG Bao-shan R B Finkelman HU Jun WU Dai-she LI She-hong |
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| Affiliation: | WANG Ming-shi~ |
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| Abstract: | Based on the analysis of 15 raw coals and washed coals collected from Southwestern, the washing rate of arsenic, sulfur and ash from raw coals was studied. The average washing rate of arsenic in raw coal is 38%. Arsenic of raw coals is mainly associated with pyrite and sulfide. However, arsenic of some raw coals is mainly or wholly associated with organic matter and mineral enwrapped by organic matter. It is difficult to remove such part of arsenic and it will enrich in the washed coals. The results show that there is a little relationship between occurrence mode of arsenic associated with organic sulfur and rank of coal, but it is complicated with age of coal-bearing strata. |
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| Keywords: | raw coal washing coal arsenic washing rate occurrence mode |
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