Abstract
AbstractMott's rapid method for the determination of sulphate and pyritic sulphur in coal can be applied to oil shale or torbanite, the pyrites content being calculated from the iron extracted. The organic sulphur is best calculated by subtracting the pyritic sulphur from the total sulphur content of the hydrochloric acid‐extracted material as determined by the quartz‐tube method [I.P.63/42(T), 1949].On the pyrolysis of the torbanite approximately only I% of added pyritic sulphur appears as organic sulphur in the oil. Similarly the addition of calcium carbonate had no effect and calcium hydroxide had only a slight effect on the organic sulphur content of the oil. None of these materials affected the oil yield significantly.
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