Discussion on the determination of the sulphur trioxide in coal ash

@inproceedings{Junjian2008DiscussionOT,
  title={Discussion on the determination of the sulphur trioxide in coal ash},
  author={Hui Jun-jian},
  year={2008}
}
The determination of the sulphur trioxide in coal ash with coulometric titration method is analyzed in this paper.For a few ash samples with ultra-high calcium sulfate content,the results of determination are not good.And the corresponding tests show that the addition of activated carbon in coal ash can improve the speed and accuracy of tests obviously. 

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