METHOD OF PRODUCING SULFUR Russian patent published in 1997 - IPC

FIELD: sulfur production. SUBSTANCE: in order to increase productivity of sulfur production owing to raising sulfur capacity of solvent and sulfur dissolution rate, into alkali metal hydroxide aqueous solution, prior to be pumped in into the bed, hydrogen sulfide in quantity 1-8 wt % is introduced. The latter is obtained when isolating sulfur from sulfur-saturated solvent by acid treatment. EFFECT: increased sulfur production.