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VSI crusher pyritic sulfur content

The solution containing some free sulfur, ferrous chloride and any unconsumed ferric chloride is removed from the coal by filtration. The coal is then washed and dried, preferably by heating in a vacuum;vsi crusher for sale this results in the major portion of free surfur being volatized as follows: S.Coal➝S + coal. If desired, a further wash, filtration and heating will remove more of the sulfur and any residual ferrous ion. One or more extractions with a suitable organic sulfur solvent such as benzene, kerosene or para cresol may be employed to further reduce the sulfur content of the coal.

Regeneration of the unused ferric chloride and ferrous chloride solution may be accomplished by first concentrating the



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