PDF

Pretreatment to Leaching for a Primary Copper Sulphide Ore in Chloride Media

Ví ctor Quezada, Antoni Roca

2021espretreatmentleachingcoppersulphideschloride

Abstract

Language:

The dissolution of copper sulphide ores continues to be a challenge for the copper industry. Several media and leaching alternatives have been proposed to improve the dissolution of these minerals, especially for the leaching of chalcopyrite. Among the alternatives, pretreatment prior to leaching was proposed as an option that increases the dissolution of copper from sulphide ores. In this study, a mineral sample from a copper mining company was used. The copper grade of the sample was 0.79%, and its main contributor was chalcopyrite (84%). The effect of curing time (as pretreatment) in a chloride media on copper sulphide ore was evaluated at various temperatures: 25, 50, 70 and 90 °C. The pretreated sample and leaching residues were characterized by X-ray diffraction, scanning electron microscopy, and reflected light microscopy. Pretreatment products such as CuSO4, NaFe3(SO4)2(OH)6, and S0 were identified although with difficulty, due to the low presence of chalcopyrite in the initial sample (1.99%). Under the conditions of 15 kg/t of H2SO4, 25 kg/t of NaCl, and 15 days of curing time, a copper extraction of 93.1% was obtained at 90 °C with 50 g/L of Cl− and 0.2 M of H2SO4.

Download

Cite This Work

@article{0d7ce6f2-0ad0-4c10-91a1-e7e9df65ea94,
  title={Pretreatment to Leaching for a Primary Copper Sulphide Ore in Chloride Media},
  author={Ví ctor Quezada and Antoni Roca},
  year={2021},
  language={es}
}
TY  - JOUR
TI  - Pretreatment to Leaching for a Primary Copper Sulphide Ore in Chloride Media
AU  - Ví ctor Quezada
AU  - Antoni Roca
PY  - 2021
LA  - es
ER  -

Similar Items

Treatment of manufacturing scrap TV boar

The leachability tests for manufacturing scrap TV boards (STVB) have indicated the release of metals beyond the limit levels with potential problems f

2026enPDF

Enhancing copper and cobalt hydrometallurgical leaching thr 2027 Minerals En

Mathieu Kayembe Musala, Matthieu Matthieu Tshanga

This study presents a comprehensive machine learning framework for the optimisation of metallurgical parameters for the grinding, leaching, and solid/

2026enPDF

Effect of Incorporation of Sulfation in Columnar Modeling of Oxidized Copper Minerals on Predictions of Leaching Kinetics

Elena Bruce, Rossana Sepúlveda

Mathematical modeling of columnar leaching is a useful tool for predicting and evaluating the kinetics of copper extraction. One commonly used model f

2024enPDF

Lixiviation Simultanée du Cuivre et Cobalt dans le Système CuFeS2-Fe3O4-Co2O3 régie par la boucle Fe2+- Fe3+

MBUYA ILUNGA Bienvenu, TSHIBANDA NTAKAMUTSHI Patrick, MUHUNGU TSHUYI Symphorien, KAWAMA NGOIE Francis, KASONGO KALENGA Gigi, NKULU WA NGOIE Guy

The current technological and economic constraints impose the development of efficient and eco-friendly processes for the simultaneous treatment of su

2019enPDF

Metals Recovery: Study of the Kinetic Aspects of Copper Acidic Leaching Waste Printed Circuit Boards from Discarded Mobile Phones

Martina Laubertová, Bora Derin

This study was performed to investigate the possibility of copper recovery from the waste printed circuit boards (WPCBs) of waste mobile phones using

2019enPDF

Comparative study for leaching processes of uranium, copper and cadmium from gibbsite ore material of Talet Seleim, Southwestern, Sinai, Egypt

Walaa A. Kassab

In this paper, leaching characteristics are presented, and a cost-effective process for extracting uranium, copper, and cadmium from Talet Seleim’s Gi

2022enPDF