Recovery of Pig Iron from Copper Smelting Slag by Reduction Smelting

Copper slag is a by-product obtained during smelting and refining of copper. Copper smelting slag typically contains about 1 wt.% copper and 40 wt.% iron depending upon the initial ore quality and the furnace type. Main components of copper slag are iron oxide and silica. These exist in copper slag...

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Bibliographic Details
Published in:Archives of metallurgy and materials 2018-01, Vol.63 (4), p.1793-1798
Main Authors: Erdenebold, U, Choi, H -M, Wang, J -P
Format: Article
Language:English
Subjects:
Copper
Copper ores
copper slag
Fayalite
Iron oxides
Metallurgy
Pig iron
Recovery
Reduction
Scrap
Silicon dioxide
Slag
Smelting
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Summary:Copper slag is a by-product obtained during smelting and refining of copper. Copper smelting slag typically contains about 1 wt.% copper and 40 wt.% iron depending upon the initial ore quality and the furnace type. Main components of copper slag are iron oxide and silica. These exist in copper slag mainly in the form of fayalite (2FeO ·SiO2). This study was intended to recover pig iron from the copper smelting slag by reduction smelting method. At the reaction temperature of below 1400°С the whole copper smelting slag was not smelted, and some agglomerated, showing a mass in a sponge form. The recovery behavior of pig iron from copper smelting slag increases with increasing smelting temperature and duration. The recovery rate of pig iron varied greatly depending on the reaction temperature.
ISSN:1733-3490
2300-1909
DOI:10.24425/amm.2018.125106