Method for the recovery of sulfur.

摘要

A method for the recovery of sulfur involves contacting a hydrogen sulfide-containing gas with an iron salt aqueous solution containing a trivalent iron ion at a temperature which is above a melting point of sulfur. This method also enables a separation of hydrogen from the aqueous solution from which sulfur has been separated by electrochemical treatment as well as an iron salt aqeuous solution in which a trivalent iron ion is present. This method permits an extremely high recovery of sulfur from hydrogen sulfide with high efficiency and purity.