摘要
以安徽省淮北煤田孟庄煤矿3,5和6煤层为研究对象,系统刻槽采取3个煤层的15个样品,采用仪器中子活化法(INNA)测试了煤中砷和稀土等元素的含量,研究了砷在3,5和6煤层的空间分布,分析了砷与灰分、稀土元素、硫以及含量之间的相关性。研究结果表明:孟庄煤矿煤中的砷的含量略高于与华北-石炭二叠纪煤中砷的算术平均含量,低于全国煤中砷的平均值;煤中的砷与灰分含量、稀土元素以及铝含量之间存在较好的相关性,表明研究区煤中的砷与陆源存在一定的关系,无机组分的砷可能主要被粘土矿物吸附。
With coalseams 3,5 and 6 of the Mengzhuang coalmine,Huaibei,Anhui Province as research subject,based on INNA measurements of arsenic contents in 15 samples from 3 coalseams acquired by systematic trenching,this paper studied the spatial distribution of arsenic in the three coalseams,analyzed the correlation of arsenic with ash,REE,sulphur and content.The results indicate that the arsenic content in the Mengzhuang coal is slightly higher than arithmetic average of arsenic in the North China Carbonaceous-Permian coal,and lower than the national average of arsenic in coal.The well shown correlation of arsenic with ash,REE and aluminum suggests that the coal arsenic in the studied area is somewhat terrigenous and the inorganic arsenic is possibly absorbed mainly by clay minerals.
出处
《安徽地质》
2010年第1期34-37,共4页
Geology of Anhui
关键词
砷
分布和赋存
孟庄煤矿
arsenic
distribution and existence
Mengzhuang coalmine
