FIELD: chemistry.
SUBSTANCE: oxygen recovering catalyst ruthenium sulphide chemically stable in hydrochloric medium with dissolved chlorine and, optionally dissolved oxygen added. Aforesaid catalyst is prepared from impregnated carrier or from conducting carrier impregnated in initial humidifying with solution containing, at least, one ruthenium precursor salt, or from ruthenium oxide precipitated on conducting carrier dispersed in aqueous solution. Impregnated carrier is dried. Derived product is processed in medium of hydrogen sulphide optionally diluted with inert gas-carrier.
EFFECT: high corrosion stability and availability for electrolysis of oxydepolarised aqueous hydrochloric acid.
47 cl, 1 tbl, 5 ex
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