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STUDY OF DISTRIBUTION AND EXISTENCE REGULARITY OF ARSENIC IN COAL, MENGZHUANG COALMINE, HUAIBEID

ZHAO Kai-quan,WU Su-zhen(Geological Division of North Anhui Coal Power Group Ltd,Suzhou,Anhui 234001,China)  
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.
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