Winning copper and other nonferrous metals from ores - using flame smelter followed by electric redn. furnace and converter

The flame smelting produces material (1) contg. 70-98% Cu; fly ash which is re-smelted; and slag (F1) contg. 1% S, which is treated with coke at 1300-1550 degrees C. in the electric furnace to obtain Cu-Pb-Fe material (2) and slag (E1) contg. 0.5% Cu. Materials (1,2) are refined in the converter to...

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Bibliographische Detailangaben
Hauptverfasser:	KALEVI TUOMINEN,TAPIO, PELLERVO,. SAARI,HEIKKI, AUGUST AALTONEN,OLAVI, TAPANI,DR.TECHN. JUUSELA,JYRKI
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The flame smelting produces material (1) contg. 70-98% Cu; fly ash which is re-smelted; and slag (F1) contg. 1% S, which is treated with coke at 1300-1550 degrees C. in the electric furnace to obtain Cu-Pb-Fe material (2) and slag (E1) contg. 0.5% Cu. Materials (1,2) are refined in the converter to produce blister copper and slag (C1) contg. 1% S recycled to the electric furnace. The fly ash obtd. is used as a source of other metals, e.g. Zn, Pb. When the ore or concentrate contains significant amts. of Co and/or Ni, the bulk of these metals occurs in material (2) which is pref. treated separately to recover the Co and/or Ni, esp. by using a two stage electric furnace treatment. Used for the recovery of Cu and other metals from unusual ores etc.