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1978-06-27
Method for recovering vanadium-values from vanadium-bearing iron ores and iron ore concentrates
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1977-07-07
Recovery of non-ferrous metals from oxide ores and concen- trates
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1980-01-24
Shaft furnace for direct reduction of iron ores
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1974-07-10
Method and apparatus for suspension smelting of fine oxide and / or sulphide ores and concentrates.
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1974-08-08
Recovery of vanadium from titaniferous iron ores
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1978-01-09
Vertical furnace for direct reduction of iron ore
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1973-05-22
Process for a pyrometallurgical treatment of sulfidic iron ores or iron ore concentrates
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1976-05-10
Method for pre-reduction and agglomeration of fine ores and concentrates for furnace smelting.
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1977-10-13
Smelting sulphidic copper ore concentrates
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1973-12-31
Shaft furnace smelting of oxidic ores, concentrates or calcines
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1979-07-05
Process and device for suspension smelting of finely divided sulfidic and/or oxidic ores or concentrates
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1975-03-27
Flash smelting of iron ore
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1971-04-28
Improvements in methods and furnaces for steel manufacture by direct reduction and melting of iron ore
ZA754727B
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1976-06-30
Process of controlling the fe++ content of sintered iron ore
CA915440A
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1972-11-28
Methods and furnaces for steel manufacture by direct reduction and melting of iron ore
ZA713324B
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1972-01-26
Feeding ores or concentrates to smelting furnaces
AU447438B2
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1972-08-31
Process fora pyrometallurgical treatment of sulphidic iron ores or iron ore concentrates
AU2579271A
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1972-08-31
Process fora pyrometallurgical treatment of sulphidic iron ores or iron ore concentrates
CA878997A
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1971-08-24
Method of blast furnace reduction of iron ores
AU451682B2
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1974-07-30
Method of blast furnace reduction of iron ores
JPS5252118A
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1977-04-26
Method of obtaining metals from raw ore concentrates
AU479204B2
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1975-05-01
Process and device tobe used inthe flash smelting of sulphide ores or concentrates
CA896896A
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1972-04-04
Process of pyrometallurgically treating sulfidic iron ores or iron ore concentrates
SU521328A1
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1976-07-15
The method of preparation of sinter from ores of non-ferrous metals to ore-smelting smelting
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1973-05-15
Iron ore smelting process