河南省主采煤层中锂含量调查及资源潜力评价
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摘要
为了调查河南省主要可采煤层二1煤层中锂的含量及其对煤中锂资源潜力做出评价,对河南省11个主要煤田主要生产矿井工作面进行刻槽采取全层样品,采用ICP-MS测试法对187个样品中的锂含量进行化验分析,根据化验结果计算出了全省各煤田煤中锂元平均含量,并运用统计学方法得出了全省各煤田锂含量变异系数。研究结果表明:河南省二1煤层中锂含量的平均值为62.73 mg/kg,各煤田煤中锂含量差别较大,陕渑煤田最高达114.19 mg/kg,永夏煤田最低,仅16.79 mg/kg,陕渑煤田煤中锂含量为永夏煤田的6.7倍,具有西高东低,含量越低其变异系数就相对越大的特点。圈定出陕渑煤田观音堂煤矿、杜家张沟地区及新安煤田新安煤矿等3处有综合开发利用前景的区域。
In order to investigate the lithium content in No. B1 seam of the principal mining seams in Henan Province and to make an evaluation on the lithium resources potential in the seams,the full seam samples from the carved slots were made in the coal mining faces of the main production mines in 11 principal coalfields of Henan Province. An ICP-MS testing method was applied to the chemical experiments and analysis on the lithium content of the 187 coal samples. According to the chemical experiment results,an average content of the lithium element in each coalfield of Henan Province was calculated. The statistic method was applied to have the variance coefficient of the lithium content in each coalfield of Henan Province. The study results showed that the average value of the lithium content in No. B1 seam of Henan Province was 62.73 mg/kg. The difference of the lithium content in each coalfield was high. The lithium content of Shaanmian Coalfield was 114.19 mg/kg in highest. The lithium content of Yongxia Coalfield was lowest and was only 16.79 mg/kg. The lithium content of Shaanmian Coalfield was 6.7 times higher than Yongxia Coalfield. The lithium content of the seams in Henan Province has the features with the high lithium content in the west and the low lithium content in the east and the lowest lithium content with a relative higher variance coefficient. The delineated Guanyintang Mine in Shaanmian Coalfield,Dujia Zhanggou Area and Xin 'an Mine of Xin 'an Coalfield would be the areas with comprehensive utilization prospects.
In order to investigate the lithium content in No. B1 seam of the principal mining seams in Henan Province and to make an evaluation on the lithium resources potential in the seams,the full seam samples from the carved slots were made in the coal mining faces of the main production mines in 11 principal coalfields of Henan Province. An ICP-MS testing method was applied to the chemical experiments and analysis on the lithium content of the 187 coal samples. According to the chemical experiment results,an average content of the lithium element in each coalfield of Henan Province was calculated. The statistic method was applied to have the variance coefficient of the lithium content in each coalfield of Henan Province. The study results showed that the average value of the lithium content in No. B1 seam of Henan Province was 62.73 mg/kg. The difference of the lithium content in each coalfield was high. The lithium content of Shaanmian Coalfield was 114.19 mg/kg in highest. The lithium content of Yongxia Coalfield was lowest and was only 16.79 mg/kg. The lithium content of Shaanmian Coalfield was 6.7 times higher than Yongxia Coalfield. The lithium content of the seams in Henan Province has the features with the high lithium content in the west and the low lithium content in the east and the lowest lithium content with a relative higher variance coefficient. The delineated Guanyintang Mine in Shaanmian Coalfield,Dujia Zhanggou Area and Xin 'an Mine of Xin 'an Coalfield would be the areas with comprehensive utilization prospects.
引文
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[20]董大啸,邵龙义,李明培.华北地台晚石炭世-早二叠世含煤岩系聚煤规律研究[J].煤炭科学技术,2017,45(9):175-181,187.DONG Daxiao,SHAO Longyi,LI Mingpei.Study on coal accumulating law of late Carboniferous-early Permian coal-bearing strata in north China platform[J].Coal Science and Technology,2017,45(9):175-181,187.
[21]吕大炜,高志武,李增学,等.华北石炭-二叠系火山事件沉积研究进展[J].煤炭科学技术,2018,46(2):9-18.LYU Dawei,GAO Zhiwu,LI Zengxue,et al.Stady progress on volcanicevent deposits of Permo-Carboniferous in north China[J].Coal Science and Technology,2018,46(2):9-18.
[2]孙升林,吴国强,曹代勇,等.煤系矿产资源及其发展趋势[J].中国煤炭地质,2014,26(11):1-11.SUN Shenglin,WU Guoqiang,CAO Daiyong,et al.Mineral resources in coal measures and development trend[J].Coal Geology of China,2014,26(11):1-11.
[3]秦身钧,高康,陆青锋,等.煤中锂的研究进展[C]//长春:中国矿物岩石地球化学学会第15届学术年会,2015.
[4]FINKELMAN R B.Trace and minor elementsin coal,In:Engel M H and Macko S(Eds),organic geochemistry[M].New York:Plenum Press,1993:593-607.
[5]KETRIS M P,YUDOVICH Ya E.Estimations of clarkes for carbonaceous biolithes:world averages for trace tlement contents in Black Shalesand coals[J].International Journal Coal Geology,2009,78:135-148.
[6]SUN Yuzhuang,LI Yanheng,ZHAO Cunliang,et al.Concentrations of lithium in Chinese coals[J].Energy Exploration&Exploition2010,28:97-104.
[7]DAI Shifeng,REN Deyi,CHOU Chenlin,et al.Geochemistry of trace elements in Chinese coals:a review of abundances,genetic types,impacts on human health,and industrial utilization[J].International Journal of Coal Geology,2012,94(3):3-21.
[8]SUN Yuzhuang,YANG Jingjing,ZHAO Cunliang.Minimum mining grade of associated li deposits in coal seams[J].Energy Exploration&Exploitation,2012,30:167-170.
[9]SUN Yuzhuang,ZHAO Cunliang,LI Yanheng,et al.Li Distribution and mode of occurrences in Li-bearing coal seam No.6 from the Guanbanwusu mine,Inner Mongolia,northern China[J].Energy Exploration&Exploitation,2012,30:109-130.
[10]SUN Yuzhuang,ZHAO Cunliang,LI Yanheng,et al.Further information of the associated li deposits in No.6 coal seam at Jungar Coalfield,Inner Mongolia,Northern China[J].Acta Geologica Sinica:English Edition,2013,87:801-812.
[11]SEREDIN Vladimir V,DAI Shifeng,SUN Yuzhuang,et al.Coal deposits as promising sources of rare metals for alternative power and energy efficient technologies[J].Applied Geochemistry,2013,31:1-11.
[12]宁树正,邓小利,李聪聪,等.中国煤中金属元素矿产资源研究现状与展望[J].煤炭学报,2017,42(9):2214-2225.NING Shuzheng,DENG Xiaoli,LI Congcong,et al.Research status and prospect of metal element mineral resources in China[J].Journalof China Coal Society,2017,42(9):2214-2225.
[13]衣姝,王金喜.安家岭矿9号煤中锂的赋存状态和富集因素分析[J].煤炭与化工,2014,37(9):7-10.YI Shu,WANG Jinxi.Lithium occurrences and enrichment factor law in No.9 coal seam of Anjialing Mine[J].Coal and Chemical Industry,2014,37(9):7-10.
[14]李华,许霞,杨凯.山西平朔矿区4号煤中锂、镓资源成矿地质特征研究[J].中国煤炭地质,2014,26(12):17-19.LI Hua,XU Xia,YANG Kai.Lithium and gallium resources metallogenic geological characteristics in No.4 coal,Pingshuo Mining Area,Shanxi[J].Coal Geology of China,2014,26(12):17-19.
[15]丁睿.丁集矿煤中伴生元素分布及其环境意义[D].合肥:中国科学技术大学,2009.
[16]庄新国,龚家强,王占岐,等.贵州六枝、水城煤田晚二叠世煤的微量元素特征[J].地质科技情报,2001,20(3):53-68.ZHUANG Xinguo,GONG Jiaqiang,WANG Zhanzhi,et al.Trace elements of the late Permian coal in Shuicheng and Liuzhi Coal Fields,Guizhou[J].Geological Science and Technology Information,2001,20(3):53-68.
[17]张年茂,杨起,李宝芳.豫西荥巩-新密煤田太原组、山西组的沉积环境和聚煤规律[J].现代地质,1988,2(2):226-240.ZHANG Nianmao,YANG Qi,Li Baofang.Depositional environments and coal-accumulating characteristics of Late Paleozoic Taiyuan and Shanxi Formation in Xinggong-Xinmi Coalfields,Western Henan Province[J].Geoscience,1988,2(2):226-240.
[18]HOU Quanlin,LI Hunjun,FAN Junjia,et al.Structure and coalbed methane occurrence in tectonically deformed coals[J].Sci China,2012,55(11):1755-1763.
[19]CAO Yunxing,MITCHELL Gareth D,DAVIS Alan,et al.Deformation metamorphism of bituminous and anthracite coals from China[J].International Journal of Coal Geology,2000,43(1/4):227-242.
[20]董大啸,邵龙义,李明培.华北地台晚石炭世-早二叠世含煤岩系聚煤规律研究[J].煤炭科学技术,2017,45(9):175-181,187.DONG Daxiao,SHAO Longyi,LI Mingpei.Study on coal accumulating law of late Carboniferous-early Permian coal-bearing strata in north China platform[J].Coal Science and Technology,2017,45(9):175-181,187.
[21]吕大炜,高志武,李增学,等.华北石炭-二叠系火山事件沉积研究进展[J].煤炭科学技术,2018,46(2):9-18.LYU Dawei,GAO Zhiwu,LI Zengxue,et al.Stady progress on volcanicevent deposits of Permo-Carboniferous in north China[J].Coal Science and Technology,2018,46(2):9-18.