Copper is produced using pyrometallurgical techniques, traditionally. Due to
various economical reasons, alternative metal production methods from secondary metal
sources such as slag, furnace dust by using more economical methods are becoming popular
in recent years. Hydrometallurgy is an alternative metal production method that includes
some leaching techniques. In this study, metal extraction of copper slag was investigated
under conditions of intensive grinding and none-grinding by using some leaching reagents.
Contrary to conventional intensive grinding, in this study, mixture of reagent and slag was
grinded in a planetary mill subsequent to water leaching was performed. The highest metal extraction was
obtained in experiments using ammonium persulfate (APS). While more than 80% Cu extraction was
obtained in 60 min leaching time with grinding process, almost same extraction values were obtained in 360
min of leaching time without mix of slag and reagent grinding operation.
Keywords: Chalcopyrite, copper, extraction, hydrometallurgy, metal recovery, oxidative reaction.
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