METHOD FOR PRODUCING A POLYSULFIDE

摘要

A method for producing a polysulfide by subjecting a solution containing a sulfide to electrolytic oxidation in an electrolytic bath (1,2) equipped with anode chambers (11, 21) having anodes (13, 23), cathode chambers (14, 24) having cathodes (15, 25), and diaphragms (16, 26) partitioning an anode chamber and a cathode chamber to, wherein conditions for electrolysis reaction are set depending upon the position in the direction of stream of a solution in the electrolytic bath. The method can be used for producing polysulfide sulfur in a high concentration while inhibiting the dissolution of an electrode material of an anode and the by-production of thiosulfate ion.