Process for smelting ore with a cyclone combustor
阅读：387发布：2021-11-24
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1. THE PROCESS OF REDUCING A METAL OXIDE IN AN ORE COMPRISING THE STEPS, IN SEQUENCE, OF: (1) CONTINUOUSLY FEEDING A CARBON-CONTAINING MATERIAL TO A COMBUSTION ZONE; (2) COMPLETELY BURNING SAID CARBON-CONTAINING MATERIAL IN SAID COMBUSTION ZONE IN A HELICALLY SWIRLING STREAM TO PRODUCE COMBUSTION PROUDCTS CONSISTING ESSENTIALLY OF XO2 AND H2O SAID COMBUSTION PRODUCTS BEING AT A TEMPERATURE IN EXCESS OF 3000*F.; (3) PASSING SAID COMBUSTION PRODUCTS INA SWIRLING STREAM AND WHILE STILL AT A TEMPERATURE IN EXCESS OF 3000*F. INTO A SECOND ZONE; (4) CONTINUOUSLY FEEDING A FINELY DIVIDED MIXTURE OF ORE CONTAINING METAL OXIDE, SLAG FORMING CONSTITUENTS, AND CARBON-CAONTAINING MATERIAL INTO SAID STREAM OF HOT COMBUSTION PRODUCTS IN SAID SECOND ZONE DOWNSTREAM OF SAID ENTRY POINT OF SAID HOT COMBUSTION PRODUCTS THEREBY CONVERTING SAID SECOND ZONE INTO A REDUCING ZONE; (5) CONTINUOUSLY REACTNG SAID MIXTURE IN SAID STREAM IN SAID REDUCING ZONE WHEREBY AT LEAST 50% OF THE METAL OXIDE IS REDUCED TO METAL AND WHEREIN SLAG FORMING CONSTITUENTS ARE MELTED; (6) CONTINUOUSLY COLLECTING LIQUIDS AND SOLIDS SEPARATING FROMSAID STREAM AS A MIXTURE OF SLAG, ORE, CARBON-CONTAINING MATERIAL AND METAL; (7) CONTINUOUSLY PASSING SAID SWIRLING STREAM OVER THE SURFACE OF SAID MIXTURE THEREBY COMPLETING REDUCTION OF THE METAL OXIDE IN SAID ORE TO METAL; AND FINALLY (8) CONTINUOUSLY RECOVERING THE THEREBY PRODUCED METAL.
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