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A systematic study has been made on the desulphurisation of organic sulphur in both feed and mercury-treated coal for their unoxidised samples as well as their oxidised samples prepared at 50, 100 and 150 o C in air under normal atmospheric pressure. A continuous increase of organic sulphur loss has been observed; the magnitude of which is substantial in mercury-treated samples. Formation...
The solubility of gypsum in organic acids namely acetic, oxalic, tartaric and succinic acids at low temperature (30 o C) was studied. The results show that sulphate sulphur content increases with increasing acid concentration from 0.1 to 0.25M and decreases again at higher concentration. It is suggested that different behaviour of the acids beyond 0.25M solution could be due to incorporation...
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