Abstract: A continuous process of desulfurizing coal and other ores contaminated with sulfur and recovering the sulfur in relatively pure crystal form, the process for coal including the steps of crushing sulfur bearing coal ore, mixing the crushed ore in a solvent forming a solvent liquor in which the sulfur is dissolved, centrifuging the solvent liquor separating a coal slurry from the solvent liquor, centrifuging the coal slurry separating the coal from the tailings including rare metals for further refining to recover the rare metals, drying the coal slurry and recovering the solvent, filtering the remaining solvent liquor removing ash, crystallizing the sulfur in the filtered solvent, centrifugally separating the crystallized sulfur from the solvent and recovering the solvent, drying the crystallized sulfur and further recovering the solvent, heating the crystallized sulfur to form a sulfur liquid and casting the sulfur in preformed molds to produce building materials.