Next Article in Journal
Reverse Flotation Separation of Fluorite from Calcite: A Novel Reagent Scheme
Previous Article in Journal
Synchrotron Nano-Diffraction Study of Thermally Treated Asbestos Tremolite from Val d’Ala, Turin (Italy)
Previous Article in Special Issue
Leaching of Chalcopyrite in Acidified Nitrate Using Seawater-Based Media
Article Menu

Export Article

Open AccessArticle
Minerals 2018, 8(8), 312; https://doi.org/10.3390/min8080312

Leaching of Primary Copper Sulfide Ore in Chloride-Ferrous Media

1
Departamento de Ingeniería Química y Procesos de Minerales, Universidad de Antofagasta, Antofagasta 1240000, Chile
2
Departamento Ingeniería de Minas, Universidad de Antofagasta, Antofagasta 1240000, Chile
3
Departamento de Ingeniería en Metalurgia y Minas, Universidad Católica del Norte, Antofagasta 1240000, Chile
*
Author to whom correspondence should be addressed.
Received: 28 June 2018 / Revised: 20 July 2018 / Accepted: 23 July 2018 / Published: 25 July 2018
(This article belongs to the Special Issue Recent Advances in Hydro- and Biohydrometallurgy)
View Full-Text   |   Download PDF [1068 KB, uploaded 25 July 2018]   |  

Abstract

Copper extraction from primary copper sulfide ore from a typical porphyry copper deposit from Antofagasta, Chile, was investigated after leaching with a chloride-ferrous media at two temperatures. The study focused on whether this chemical leaching system could be applied at an industrial scale. Leaching tests were conducted in columns loaded with approximately 50 kg of agglomerated ore; the ore was first cured for 14 days and then leached for 90 days. The highest copper extraction, 50.23%, was achieved at 32.9 °C with the addition of 0.6 kg of H2SO4 per ton of ore, 0.525 kg of NaCl per ton of ore, and 0.5 kg of FeSO4 per ton of ore. In respect to copper extraction, the most effective variables were temperature and the addition of NaCl. View Full-Text
Keywords: leaching; primary sulfide copper; chalcopyrite; chloride leaching; primary sulfide copper; chalcopyrite; chloride
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Salinas, K.E.; Herreros, O.; Torres, C.M. Leaching of Primary Copper Sulfide Ore in Chloride-Ferrous Media. Minerals 2018, 8, 312.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Minerals EISSN 2075-163X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top