| 白音乌拉煤田煤中砷含量及赋存特征探讨 |
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| 引用本文： | 黄少青,张恒利,张建强. 白音乌拉煤田煤中砷含量及赋存特征探讨[J]. 煤炭技术, 2020, 39(1): 69-71 |
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| 作者姓名： | 黄少青 张恒利 张建强 |
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| 作者单位： | 中国煤炭地质总局勘查研究总院,北京100039;中国煤炭地质总局勘查研究总院,北京100039;中国煤炭地质总局勘查研究总院,北京100039 |
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| 基金项目： | 中国地质调查局地质调查项目(DD20160187) |
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| 摘 要： | 通过对白音乌拉煤田勘探的煤芯煤样测试数据的统计分析,初步探讨了煤中砷的含量特征、赋存状态以及成因,结果表明:白音乌拉煤田煤中砷含量平均值达到了36.59μg/g,是中国煤中砷含量平均值的9.65倍,高度富集,属于四级含砷煤;煤中砷的含量与煤中无机的硫化物及黄铁矿关系密切,表明砷元素可能与煤中硫化物及黄铁矿结合的形式存在,另外与有机质结合也可能是煤中砷的重要赋存形式;目前的脱除技术对无机状态赋存的砷效果较好,而对与有机质结合的砷元素脱除效果不佳。
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| 关 键 词： | 白音乌拉煤田 煤中砷 赋存 硫化物 |
Discussion on Arsenic Content and Occurrence in Coal of Baiyinwula Coalfield |
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| HUANG Shao-qing,ZHANG Heng-Ii,ZHANG Jian-qiang. Discussion on Arsenic Content and Occurrence in Coal of Baiyinwula Coalfield[J]. Coal Technology, 2020, 39(1): 69-71 |
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| Authors: | HUANG Shao-qing ZHANG Heng-Ii ZHANG Jian-qiang |
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| Affiliation: | (Prospecting Institute,China National Administration of Coal Geology,Beijing 100039,China) |
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| Abstract: | Based on the statistical analysis of the test data of core coal samples in Baiyinwula coalfield exploration, discusses the content characteristics, occurrence status and causes of arsenic in coal. The results showed that the average arsenic content in the Baiyinwula coal field reached 36.59 μg/g, 9.65 times higher than average content in China, and it was highly enriched, belonging to grade 4 arseniccontaining coal. The content of arsenic in coal is closely related to inorganic sulfide and pyrite,indicating that arsenic may exist in the form of combination with sulfide and pyrite in coal, in addition,the combination with organic matter may also be an important form of occurrence of arsenic in coal.At present, the removal technology is better for the arsenic in inorganic state, but not for the arsenic combined with organic matter. |
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| Keywords: | Baiyinwula coalfield arsenic in coal occurrence sulfide |
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