Discussion on the relationship between the content of Arsenic and the coal quality characteristic and the Arsenic modes of occurrence in Chinese high Arsenic coal
Abstract：Based on the statistic results of the related data of Arsenic in coal samples from＇Chinese coal resource database＇,the contours of Arsenic content in coals and the geography of high Arsenic diggings in China,the dependency relation of Arsenic in Chinese high-Arsenic coals with the coal quality was analyzed,and the concentration distribution of Arsenic in Chinese high-Arsenic coals was generalized in the dissertation.The distribution of high-As is wide-ranging with spot distribution.The correlation analysis between the distribution of Arsenic of Chinese high Arsenic coal,coal quality characteristic and the Arsenic modes of occurrence in Chinese high Arsenic coal were discussed,some conclusions were drawn.The high Arsenic coal is primary with the lower grade coal.The relationship between Arsenic content and ash content,total sulfur content,coal ash in high Arsenic coal are complicated.There is an obvious correlation between the content of Arsenic and total sulfur content in Chinese high Arsenic coal,the varied tendency of the content of Arsenic and total sulfur content in different density of float-sink test is concordance.The element of Arsenic in high-As mainly distribute in pyrite sulfur with single graininess,the content of pyrite sulfur with fine impregnation is relatively lower.
Keywords：Arseniccoal quality characteristicmode of occurrencecontour
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)