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This paper reported the speciation of sulphur in two parent Victorian brown coals and their upgraded derivatives through the use of direct, non-destructive synchrotron-based S K-edge XANES. Victorian brown coal is the single largest source for power generation in Victoria, Australia. To date little has been known about its sulphur speciation. The results here demonstrated the predominance of organosulphur...
This paper addressed the probability of the generation of ultra-clean coal from chemical leaching of low-rank Victorian brown coal. Sequential leaching was employed to determine the modes of occurrence of the major elements in the two coals studied, including Na, K, Mg, Ca, Fe, Al, Ti, and Si. The results indicate that, the modes of occurrence of individual metals vary greatly with brown coal sample...
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