河南省二_1煤层稀土元素赋存特征研究
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摘要
为了解河南省二_1煤层及其顶底板中稀土元素含量及分布特征,评价煤系稀土元素资源潜力,对河南省11个煤田主要生产矿井进行刻槽取样,取得全层样品244个,采用ICP-MS法对样品中的稀土元素含量进行分析测试。研究结果表明:全省二_1煤层中稀土元素含量的平均值为119.75 mg/kg,其顶板平均含量为333.80 mg/kg,底板为328.49 mg/kg;各煤田煤中稀土元素含量差别较大,荥巩煤田最高为261.80 mg/kg,永夏煤田最低为78.74 mg/kg,相差的3.3倍;其含量变化受沉积环境控制,具有西高东低、南北波动特点;陕渑煤田和荥巩煤田部分二_1煤层稀土元素有综合回收利用的价值。
In order to understand the contents and distribution features of the rare earth elements in Seam B_1 as well as roof and floor in Henan Province and to evaluate the resources potential of the rare earth elements in the coal,slot samplings were conducted in major production mines in 11 coalfields of Henan Province. There were 244 full seam samples collected. An ICP-MS Method was applied to analyze and test the total rare earth elements of the samples in Seam B_1.The results showed that in whole Henan Province,the average value of the total rare earth elements in Seam B_1 was 119.75 mg/kg,the average content of the rare earth elements in the roof was 333.80 mg/kg and the average content of the rare earth elements in the floor was 328.49 mg/kg. There was a big difference between the total content of the rare earth elements in each coalfield. The total content of 261.80 mg/kg in Xinggong Coalfield was highest,the total content of 78.74 mg/kg in Yongxia Coalfield was lowest and there were 3.3 times difference between the highest and lowest. The content of the rare earth elements was affected by the sedimentary environment control with the features of the high in west and low in east and the fluctuation from south to north. The rare earth elements of some Seam B_1 in Shaanmian Coalfield and Xinggong Coalfield would have the comprehensive recovery and utilization value.
In order to understand the contents and distribution features of the rare earth elements in Seam B_1 as well as roof and floor in Henan Province and to evaluate the resources potential of the rare earth elements in the coal,slot samplings were conducted in major production mines in 11 coalfields of Henan Province. There were 244 full seam samples collected. An ICP-MS Method was applied to analyze and test the total rare earth elements of the samples in Seam B_1.The results showed that in whole Henan Province,the average value of the total rare earth elements in Seam B_1 was 119.75 mg/kg,the average content of the rare earth elements in the roof was 333.80 mg/kg and the average content of the rare earth elements in the floor was 328.49 mg/kg. There was a big difference between the total content of the rare earth elements in each coalfield. The total content of 261.80 mg/kg in Xinggong Coalfield was highest,the total content of 78.74 mg/kg in Yongxia Coalfield was lowest and there were 3.3 times difference between the highest and lowest. The content of the rare earth elements was affected by the sedimentary environment control with the features of the high in west and low in east and the fluctuation from south to north. The rare earth elements of some Seam B_1 in Shaanmian Coalfield and Xinggong Coalfield would have the comprehensive recovery and utilization value.
引文
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[18]王运泉,任德贻,雷加锦,等.煤中微量元素分布特征初步研究[J].地质科学,1997,32(1):65-73.WANG Yunquan,REN Deyi,LEI Jiajin,et al. Distribution of minor elements in Chinese coals[J].Chinese Journal of Geology,1997,32(1):65-73.
[19]吴艳艳,秦勇,易同生.贵州凯里梁山组高硫煤中稀土元素的富集及其地质成因[J].地质学报,2010,84(2):280-285.WU Yanyan,QIN Yong,YI Tongsheng. Enrichment of rare earth elements in high sulfur coal of Liangshan Formation from Kaili,Guizhou,China and geological origin[J].Acta Geologica Sinica,2010,84(2):280-285.
[20] YUDOVICH YE,KETRIS MP. Valuable trace elements in coal[M].RAS:Ekaterinburg,2006:102-150.
[21]孙玉壮,赵存良,李彦恒,等.煤中某些伴生金属元素的综合利用指标探讨[J].煤炭学报,2014,39(4):744-748.SUN Yuzhuang,ZHAO Cunliang,LI Yanheng,et al. Minimum mining grade of the selected trace elements in Chinese coal[J].Journal of China Coal Society,2014,39(4):744-748.
[2]王中刚,于学元,赵振华.稀土元素地球化学[M].北京:科学出版社,1989:279-289,310-313.
[3]代世峰,任德贻,周义平,等.煤型稀有金属矿床:成因类型、赋存状态和利用评价[J].煤炭学报,2014,39(8):1707-1715.DAI Shifeng,REN Deyi,ZHOU Yiping,et al. Coal-hosted rare metal deposits:genetic types modes of occurrence and utilization evaluation[J]. Journal of China Coal Society,2014,39(8):1707-1715.
[4] SUN Yuzhuang,ZHAO Chunliang,LI Yanheng,et al.Anomalous concentrations of rare metal elements,rare-scattered(dispersed)elements and rare earth elements in the coal from Iqe Coalfield,Qinghai Province,China[J].Acta Geologca Sinica,2015,89(1):229-241.
[5] FRANUS Wojciech,WIATROS-MOTYKA M M,WDOWIN Magdalena.Coal fly ash as a resource for rare earth elements[J].Environmental Science and Pollution Research,2015,22(12):9464-9474.
[6] World Energy Council.2007 Survey of Energy Resource[R].London:World Energy Council,2007:1-586.
[7] KETRIS MP,YUDOVICH YE.Estimations of Clarkes for carbonaceous biolithes:World averages for trace element contents in black shales and coals[J].International Journal of Coal Geology,2009,78:135-148.
[8]赵志根,唐修义.中国煤中的稀土元素[J].中国煤炭地质,2002,14(S1):70-74.ZHAO Zhigen,TANG Xiuyi.Rare-earth elements in coal of China[J].Coal Geology of China,2002,14(S1):70-74.
[9] 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,2012,94:3-21.
[10] REN Deyi,ZHAO Fenghu,WANG Yunquan,et al.Distributions of minor and trace elements in Chinese coals[J]. International Journal of Coal Geology,1999,40:109-118.
[11]黄文辉,杨起,汤达祯,等.华北晚古生代煤的稀土元素地球化学特征[J].地质学报,1999,73(4):360-369.HUANG Wenhui,YANG Qi,TANG Dazhen,et al.Geochemistry of rare earth elements in Late Paleozoic coals in the North China[J].Acta Geologica Sinica,1999,73(4):360-369.
[12] ESKENAZY G M.Rare earth elements in a sampled coal from the Pirin deposit,Bulgaria[J].International Journal of Coal Geology,1987,7:301-314.
[13] BIRK D,WHITE JC.Rare earth elements in bituminous coals and under clays of the Sydney basin,Nova Scotia:element sites,distribution,mineralogy[J]. International Journal of Coal Geology,1991,19:219-251.
[14] SEREDIN VV.Rare earth element-bearing coals from the Russian Far East deposits[J]. International Journal of Coal Geology,1996,30:101-129.
[15] HOWER J C,RUPPERT L F,EBLE C F.Lanthanide,yttrium,and zirconium anomalies in the fire clay coal bed,Eastern Kentucky[J].International Journal of Coal Geology,1999,39:141-153.
[16]李春辉,宋党育,宋播艺,等.豫西裴沟矿二叠系构造煤中稀土元素分布与赋存特征[J].地球化学,2017,46(4):345-357.LI Chunhui,SONG Dangyu,SONG Boyi,et al. Distribution and occurrence of REE in the Permian tectonically deformed coals from the Peigou Mine,western Henan Province[J].Geochemical,2017,46(4):345-357.
[17]郭熙年,唐仲林,李万程,等.河南省晚古生代聚煤规律[M].武汉:中国地质大学出版社,1991,80-93.
[18]王运泉,任德贻,雷加锦,等.煤中微量元素分布特征初步研究[J].地质科学,1997,32(1):65-73.WANG Yunquan,REN Deyi,LEI Jiajin,et al. Distribution of minor elements in Chinese coals[J].Chinese Journal of Geology,1997,32(1):65-73.
[19]吴艳艳,秦勇,易同生.贵州凯里梁山组高硫煤中稀土元素的富集及其地质成因[J].地质学报,2010,84(2):280-285.WU Yanyan,QIN Yong,YI Tongsheng. Enrichment of rare earth elements in high sulfur coal of Liangshan Formation from Kaili,Guizhou,China and geological origin[J].Acta Geologica Sinica,2010,84(2):280-285.
[20] YUDOVICH YE,KETRIS MP. Valuable trace elements in coal[M].RAS:Ekaterinburg,2006:102-150.
[21]孙玉壮,赵存良,李彦恒,等.煤中某些伴生金属元素的综合利用指标探讨[J].煤炭学报,2014,39(4):744-748.SUN Yuzhuang,ZHAO Cunliang,LI Yanheng,et al. Minimum mining grade of the selected trace elements in Chinese coal[J].Journal of China Coal Society,2014,39(4):744-748.