The effect of seawater based media on copper dissolution from low-grade copper ore

•Seawater based media affect copper dissolution from low-grade copper ore.•Presence of the Cl− ions causes the formation of chloro-copper complexes.•Use of seawater in mining processes has advantages in the northern part of Chile. Due to the scarcity of water in the north of Chile, there is interest...

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Bibliographic Details
Published in:Minerals engineering 2015-02, Vol.71, p.139-145
Main Authors: Torres, C.M., Taboada, M.E., Graber, T.A., Herreros, O.O., Ghorbani, Y., Watling, H.R.
Format: Article
Language:English
Subjects:
Chloro-complex
Copper
COPPER ALLOYS (10 TO 40 CU)
COPPER MINERALS
Copper ores
Copper sulfide
Cupric ion
DISSOLUTION
Extraction
EXTRACTIVE METALLURGY
Formations
Leaching
Marine
ORES
Sea water
SEAWATER
Small scale
TAP WATER
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Summary:•Seawater based media affect copper dissolution from low-grade copper ore.•Presence of the Cl− ions causes the formation of chloro-copper complexes.•Use of seawater in mining processes has advantages in the northern part of Chile. Due to the scarcity of water in the north of Chile, there is interest in small-scale mining using seawater to leach the minerals. This situation has led to this research aimed to determine the effect of different process variables on the extraction of copper based on the ore type of these small-scale mining activities. The extraction of copper from finely ground (
ISSN:0892-6875
1872-9444
DOI:10.1016/j.mineng.2014.11.008