Electrochemical and metallurgical industry . ii oil inthe free state, and chlorine, wliicli conilnncs with the metals. Ferric chloride, if formed, wonid immediately he redncedto ferrous in the presence of the sulphide ore. The fact thatit is possible to obtain chlorides of the metals and sulphur bytreating sulphide with S:C1, or at dco to 700° sonu- such action as the alnive is possible The management of the transformer is cxceednigl> simpleand can be mastered by an intelligent laborer in eight , if the temperature falls below the prescribed limit,sulphur ch
Electrochemical and metallurgical industry . ii oil inthe free state, and chlorine, wliicli conilnncs with the metals. Ferric chloride, if formed, wonid immediately he redncedto ferrous in the presence of the sulphide ore. The fact thatit is possible to obtain chlorides of the metals and sulphur bytreating sulphide with S:C1, or at dco to 700° sonu- such action as the alnive is possible The management of the transformer is cxceednigl> simpleand can be mastered by an intelligent laborer in eight , if the temperature falls below the prescribed limit,sulphur chloride begins to form, and in coming over with thesulphur vapor alters the color of it. Its presence is also indi-cated by its characteristic odor, and consequently the manhas to increase the speed of working by adding more oreand turning on more chlorine. If the temperature rises abovethe limit, the sulphur vapor is colored white, owing to thezinc chloride conmiencing to distil over. This is a sign to do Chlorinr Inlfft 8he»t Iron Caaine. , Spom Chloride Oullol FK;. I.—CONSTRrCTION OF TRANSFORMER. crease the speed of working. When the whole of the sul-phide is decomposed, the fact is proclaimed by the produc-tion of chocolate-colored vapor of ferric chloride, and thesulphur vapor ceases to come off. The transformer reaction is strongly exothermic, so thatno external heat is required to continue the reaction, thetemperature l>eing governed simply by the rate at whichchlorine is passed through the fused mixture. It seems im-possible to pass the chlorine so quickly as to obtain it pass-ing out with the sulphur vapor. Immediate absorpti(^>n takesplace and the only effect of passing the chlorine rapidly is toraise the temperature. It is possible to work so rapidly thatthe chlorides arc raised to their distilling temperature—infact, with ores very rich in sulphide the rate of working de-l>end» fin thr rate of Cfw)ling of the walls of the transformer,(ja;
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