| 贵州省某村煤中砷含量及赋存状态 |
| |
| 引用本文： | 王明仕,杨娜娜,钦凡,刘克武.贵州省某村煤中砷含量及赋存状态[J].煤炭转化,2010,33(4). |
| |
| 作者姓名： | 王明仕 杨娜娜 钦凡 刘克武 |
| |
| 作者单位： | 河南理工大学资源环境学院,454003,河南焦作 |
| |
| 基金项目： | 国家自然科学基金资助项目(40703005); 河南省青年骨干教师项目(2009GGJS-039); 河南理工大学博士基金资助项目 |
| |
| 摘 要： | 基于对贵州兴仁某村煤中砷的含量及赋存状态的研究,得出研究区砷含量分布范围在17.83mg/kg～140.64mg/kg,平均值为93.31mg/kg,远高于中国(4.09mg/kg)和世界(5mg/kg)煤砷含量.其赋存状态复杂多样,煤砷各形态含量比例分布为:残渣态(56.74%)铁锰氧化物结合态(20.74%)硫化物结合态(15.20%)有机结合态(5.07%)碳酸盐结合态(1.73%)水溶态和可交换态(0.52%).煤中砷主要以残渣态形式存在,铁锰氧化物结合态砷含量也较高.其中一个煤样砷含量相对于其他样品较小,有机砷结合态所占比例相对较大,结合前人研究推断:此次研究的煤样多以大分子有机砷结合态存在,但不易提取,导致残渣态砷含量较高.
|
| 关 键 词： | 煤 砷 赋存状态 |
CONTENT AND OCCURRENCE OF ARSENIC IN COAL OF A VILLAGE IN GUIZHOU PROVINCE |
| |
| Wang Mingshi,Yang Na'na,Qin Fan,Liu Kewu.CONTENT AND OCCURRENCE OF ARSENIC IN COAL OF A VILLAGE IN GUIZHOU PROVINCE[J].Coal Conversion,2010,33(4). |
| |
| Authors: | Wang Mingshi Yang Na'na Qin Fan Liu Kewu |
| |
| Affiliation: | Wang Mingshi Yang Na'na Qin Fan and Liu Kewu(Institute of Resource and Environment,He'nan Polytechnic University,454003 Jiaozuo,He'nan) |
| |
| Abstract: | Investigation of arsenic content and occurrence in coal of Guizhou coal showed that arsenic content is large,and its arithmetic average content reaches 93.31 mg/kg,which is much larger than that in coal of other coal fields in China (4.09 mg/kg).The sequence of the average levels of arsenic occurrence in coal is:residual arsenic(56.74%)>Fe-Mn oxide arsenic (20.74%)>sulfide arsenic (15.20%)>organic arsenic (5.07%)>carbonate arsenic (1.73%)>soluble and exchangeable arsenic.Arsenic in coal is mainly residual a... |
| |
| Keywords: | coal As occurrence |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
