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- W2356471152 abstract "Sequential chemical extraction has been used to determine the mode of occurrence of Ba,Co,Cr,Cu,Ni,Pb,Sr,V,Y,Zn in samples of tow China oil shales:Jilin Huadian and Jilin Wangqing.The concentration of trace elements in oil shale and sequential chemical extraction states were determined using inductively coupled plasma atomic emission spectroscopy.The results show that trace elements of oil shale mainly exist as sulfide state and residue state except for Ba,Pb,Sr and V.The concentration in both of these conditions accounts for 78.96%～97.97%,where the residue state occupies more than 50%.The residue state has low mobility and the extent of pollution to environment was weak.For example Cr in Wangqing oil shale,accounts for 80.87% in the residue state.The elements which are easily extracted from oil shale have a higher mobility,so these types of elements might seriously pollute the environment if they mainly exist in forms other than the stable state.In particular,we should pay attention to Sr,because its potential leaching rate was up to 77.67% in Huadian oil shale." @default.
- W2356471152 created "2016-06-24" @default.
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- W2356471152 date "2008-01-01" @default.
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- W2356471152 title "Geochemical occurrences of selected trace elements in oil shale" @default.
- W2356471152 hasPublicationYear "2008" @default.
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