Title

合山超高有机硫煤中Fe-Mn-Hg-Zn-Ni-Cr-V的赋存状态及意义

Translated Titles

Occurrence of Fe-Mn-Hg-Zn-Ni-Cr-V and Its Significance in High Organosulfur Coal from Heshan Coalfield

Authors

赵峰华(Feng-Hua Zhao);彭苏萍(Su-Ping Peng);唐跃刚(Yue-Gang Tang);任德贻(De-Yi Ren)

Key Words

高硫煤 ; 有机硫 ; 赋存状态 ; 逐级化学提取 ; 合山煤田 ; high-sulfur coal ; organosulfur ; occurrence ; sequential chemical high-sulfur coal ; organosulfur ; occurrence ; sequential chemical

PublicationName

中國礦業大學學報

Volume or Term/Year and Month of Publication

34卷1期(2005 / 01 / 01)

Page #

33 - 36

Content Language

簡體中文

Chinese Abstract

采用逐级化学提取方法,研究了广西合山超高有机硫煤中Hg, Ni, Zn, Mn, Cr, V等有害元素赋存状态。解结果表明:超高有机硫煤中与无机质结合的Ni, Cr, V, Zn, Hg, Mn均大于90%,而有机结合状态硫小于10%。酸在各种无机结合态中,硫化物结合态、铁锰氧化物结合态或铝硅酸盐结合态为主要赋存状态;如,Ni和Zn主要与硫化物和铝硅酸盐结合;Hg主要与硫化物结合;Cr和Mn主要与硫化物和铁锰氧化物结合;V主要与铭硅酸盐和铁锰氧化物结合;Fe主要与硫化物和铁锰氧化物结合.因此,从煤的洁净利用角度看,超高有机硫煤中的这些有害元素有可能通过洗选来脱除。特殊的局限碳酸盐台地成煤环境决定了合山超高有机硫煤中Fe, Ni, Cr, V, Zn, Hg, Mn的上述赋存特征。

English Abstract

The occurrence of hazardous elements such as Hg, Ni, Zn, Mn, Cr, and V in Heshan high organosulfur coal formed in sedimentary environment of restricted carbonate platform was studied using sequential chemical extract. More than 90% of Ni, Cr, V, Zn, Hg, and Mn in the studied coal samples exist in inorganic state, less than 10% of these elements are associated with organic phase. Among various occurrences of these elements, the dominant occurrence modes are sulfide state, iron-manganese oxide or silicate state. For examples, nickel and zinc in these coal samples is mainly associated with sulfide and aluminosilicate; mercury mainly occurs in sulfide; chromium and manganese are mainly in sulfide and iron-manganese oxides. Vanadium mainly combines with aluminosilicate and iron-manganese oxides. Iron mainly occurs in sulfide and iron-manganese oxides. Hence, from the point of view of clean coal technology, it is possible to remove Ni, Cr, V, Zn, Hg, and Mn in Heshan high organosulfur coal together with pyrite by coal preparation. Special coal-forming environment of restricted carbonate platform results in such occurrence modes as Fe, Ni, Cr, V, Zn, Hg, and Mn in the investigated Heshan's coal samples.

Topic Category 基礎與應用科學 > 基礎與應用科學綜合
基礎與應用科學 > 地球科學與地質學
工程學 > 工程學綜合
工程學 > 機械工程