淮北煤田煤中汞的赋存状态

郑刘根; 刘桂建; 齐翠翠; 张莹; 陈怡伟

Volume 32 Issue 2

Mar. 2007

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Article Navigation > Earth Science > 2007 > 32(2): 279-284

ZHENG Liu-gen, LIU Gui-jian, QI Cui-cui, ZHANG Ying, CHEN Yi-wei, 2007. Study on Modes of Occurrence of Mercury in Coals from the Huaibei Coalfield. Earth Science, 32(2): 279-284.

Citation:

ZHENG Liu-gen, LIU Gui-jian, QI Cui-cui, ZHANG Ying, CHEN Yi-wei, 2007. Study on Modes of Occurrence of Mercury in Coals from the Huaibei Coalfield. Earth Science, 32(2): 279-284.

ZHENG Liu-gen, LIU Gui-jian, QI Cui-cui, ZHANG Ying, CHEN Yi-wei, 2007. Study on Modes of Occurrence of Mercury in Coals from the Huaibei Coalfield. Earth Science, 32(2): 279-284.

Citation:

ZHENG Liu-gen, LIU Gui-jian, QI Cui-cui, ZHANG Ying, CHEN Yi-wei, 2007. Study on Modes of Occurrence of Mercury in Coals from the Huaibei Coalfield. Earth Science, 32(2): 279-284.

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Study on Modes of Occurrence of Mercury in Coals from the Huaibei Coalfield

1.
CAS Key Laboratory of Crust-Mantle Material and Environments, School of Earth and Space Sciences, University of Science and Technology of China, He fei 230026, China
2.
Croucher Institute for Environmental Science, and Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China

Publish Date: 2007-03-25

Abstract

Abstract

Sequential extraction tests using Flow Injection Mercury System(FIMS)were done on 29 coal samples collected from the number 3, 4, 5, 7, and 10 coal seams in the Huaibei coalfield. The average total Hg concentrations for the coal seams 3, 4, 5, 7, and 10 were 0.13, 0.18, 0.54, 0.34, and 0.19 mg/kg respectively. The average value of Hg for all of the coal samples was 0.26 mg/kg, which is higher than that of most Chinese and U.S. coals. Six modes of Hg occurrence were recognized, including water-leachable, ion-exchangeable, organic-bound, carbonate-bound, silicate-bound, and sulfidebound Hg ones.With rare exception, little Hg was found in water-soluble, ion-exchangeable or carbonate-bound forms. Sulfide-bound Hg and organic-bound Hg dominated seams 3, 4, and 10, whereas silicate-bound Hg dominated seams 5 and 7. The relatively high Hg values observed in seams 5 and 7, especially in parting samples, are attributed to Hg enrichment by magmatic intrusions.
- mercury,
- modes of occurrence,
- sequential extraction,
- Huaibei coalfield

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References(33)

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