| 煤炭洗选脱除煤中有害微量元素的实验研究 |
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| 引用本文： | 王琳.煤炭洗选脱除煤中有害微量元素的实验研究[J].洁净煤技术,2007,13(3):13-17. |
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| 作者姓名： | 王琳 |
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| 作者单位： | 煤炭科学研究总院北京煤化工研究分院,北京100013 |
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| 基金项目： | 社会公益专项项目(2005D1B3J211)资助 |
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| 摘 要： | 利用浮沉试验研究了通过煤炭洗选技术脱除煤中有害微量元素的可能性。结果表明,煤中有害微量元素在选煤过程中的行为取决于其有机亲和性。大多数煤中As、Cr、Hg、Mn、Ga、Ta、Ti、W、Cs等元素均可得到较高的理论脱除率,而B、Mo、Y等元素理论脱除率在各种煤中均较低。Be、Se、Pb等元素理论脱除率在不同煤中变化幅度较大,主要是由于其在不同煤中赋存状态不同而造成的。
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| 关 键 词： | 选煤 微量元素 脱除 |
| 文章编号： | 1006-6772（2007）03-0013-05 |
| 收稿时间： | 2007-03-06 |
| 修稿时间： | 2007-03-06 |
The Study on Removal of Trace Elements in Coal by Coal Preparation |
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| WANG Lin.The Study on Removal of Trace Elements in Coal by Coal Preparation[J].Clean Coal Technology,2007,13(3):13-17. |
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| Authors: | WANG Lin |
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| Affiliation: | Belting Research Institute of Coal Chemistry, China Coal Research Institute, Beijing 100013, China |
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| Abstract: | The removal of trace elements in coal during coal preparation was researched by float- sink testa.The results show that the removal of trace elements of coal is dominated by their organic affinity.For most coals,the el- ements of As,Cr,Hg,Mn,Ga,Ta,Ti,W and Cs have higher theoretical removal percentage.Generally speak- ing,the elements of B,Mo and Y etc.are difficult to be removed during coal washing.The theoretical removal percentage of Be,Se and Pb etc.varies largely from one coal to another,in accordance with their complex modes of occurrences in coals. |
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| Keywords: | coal preparation trace elements removal |
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