Baisui Han, Batnasan Altanskhu
Sulfide copper mineral, typically Chalcopyrite (CuFeS2), is one of the most common minerals for producing metallic copper via the pyrometallurgical process. Generally, flotation tailings are produced as a byproduct of flotation and still consist of un-recovered copper. In addition, it is expected that more tailings will be produced in the coming years due to the increased exploration of low-grade copper ores. Therefore, this research aims to develop a copper recovery process from flotation tailings using high-pressure leaching (HPL) followed by solvent extraction. Over 94.4% copper was dissolved from the sample (CuFeS2 as main copper mineral) by HPL in H2O media in the presence of pyrite, whereas the iron was co-dissolved with copper according to an equation given as FeS2 + 6H2O → Fe3+ + 3SO42- + 4H+. To avoid losing a relevant selection on the subsequent copper electrowinning, solvent extraction was conducted on the generated leach solution for improving copper concentration. The result showed that 91.3% copper was recovered in a stripped solution and 98.6% was removed under the optimal extraction conditions. As a result, 86.2% of copper was recovered from the concentrate of flotation tailings by a proposed HPL-solvent extraction process.
@article{7d31d808-7080-48a7-a0d6-74d1aa6a030e,
title={Development of copper recovery process f},
author={Baisui Han and Batnasan Altanskhu},
year={2026},
language={en}
}TY - JOUR TI - Development of copper recovery process f AU - Baisui Han AU - Batnasan Altanskhu PY - 2026 LA - en ER -
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