典型高砷煤样品的连续浸取实验研究——兼论黔西南高砷煤中砷的赋存状态

丁振华; 郑宝山; FinkelmamR B; 胡天斗; 周运书

Volume 28 Issue 2

Mar. 2003

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Article Navigation > Earth Science > 2003 > 28(2): 209-213

DING Zhen-hua, ZHENG Bao-shan, Finkelmam R B, HU Tian-dou, ZHOU Yun-shu, 2003. Subsequent Leaching Study of Typical High-As Coal Samples from Southwest Guizhou Province. Earth Science, 28(2): 209-213.

Citation:

DING Zhen-hua, ZHENG Bao-shan, Finkelmam R B, HU Tian-dou, ZHOU Yun-shu, 2003. Subsequent Leaching Study of Typical High-As Coal Samples from Southwest Guizhou Province. Earth Science, 28(2): 209-213.

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Subsequent Leaching Study of Typical High-As Coal Samples from Southwest Guizhou Province

1.
State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
2.
School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China
3.
National Center, US Geological Survey, Reston VA 20192, USA
4.
BEPC NL Chinese Academy of Sciences, Beijing 100039, China
5.
Sanitation and Antiepidemic Station of Qianxinan Autonomous Prefecture, Xingyi 562400, China

Received Date: 2002-05-18
Publish Date: 2003-03-25

Abstract

Abstract

Based on a previous research, two typical high-As coal samples were conducted on subsequent leaching. Combining with instrument neutron active analyses (INAA), ICP-MS, ICP-AES, X-ray absorption fine structure (XAFS), low temperature ashing, and scanning electron microscopy with X-ray energy disperse analyzer, this paper discusses the occurrence mode of the arsenic in high-As coals from southwestern Guizhou Province. It is proved that more than 50% arsenic cannnot be leached out by NH ₄Ac, HCl, HF and HNO₃, and that arsenic mainly exists in the organic (Ⅴ) form.
- high-As coal,
- southwestern Guizhou Province,
- mode of occurrence,
- subsequent leaching

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References(14)

References

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