Journal ArticleDOI
A review of the structure, and fundamental mechanisms and kinetics of the leaching of chalcopyrite.
TLDR
There is general agreement in the literature that chalcopyrite leaching is significantly affected by solution redox potential with an optimum E(h) range suggesting the participation of leach steps that involve both oxidation and reduction.About:
This article is published in Advances in Colloid and Interface Science.The article was published on 2013-09-01. It has received 338 citations till now. The article focuses on the topics: Chalcopyrite & Leaching (metallurgy).read more
Citations
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Journal ArticleDOI
Kinetics of oxidative degradation/mineralization pathways of the antibiotic tetracycline by the novel heterogeneous electro-Fenton process with solid catalyst chalcopyrite
Natija Barhoumi,Natija Barhoumi,Hugo Olvera-Vargas,Nihal Oturan,David Huguenot,Abdellatif Gadri,Salah Ammar,Enric Brillas,Mehmet A. Oturan +8 more
TL;DR: In this article, the degradation of solutions of the antibiotic tetracycline (TC) has been studied by a novel electrochemical advanced oxidation process, consisting in electro-Fenton (EF) process using chalcopyrite as heterogeneous catalyst.
Journal ArticleDOI
Chalcopyrite hydrometallurgy at atmospheric pressure: 1. Review of acidic sulfate, sulfate–chloride and sulfate–nitrate process options
TL;DR: In this paper, the authors present a review of current knowledge in respect of sulfate-sulfuric acid systems and highlight potentially rewarding areas for future research, including the potential to exploit alternative oxidants to ferric ion.
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Current scenario of chalcopyrite bioleaching: a review on the recent advances to its heap-leach technology.
TL;DR: Advances in the designing of heap bioleaching plant along with microbial and environmental factors of importance have been reviewed with conclusions into the future prospects of chalcopyriteBioleaching.
Journal ArticleDOI
A Review of the Occurrence and Promising Recovery Methods of Rare Earth Elements from Coal and Coal By-Products
TL;DR: In this article, a review of the abundance, mode of occurrence, and recovery methods of rare earth elements in coal and coal by-products is provided along with issues associated with their use with coal resources.
Journal ArticleDOI
Heap Leaching Technology—Current State, Innovations, and Future Directions: A Review
TL;DR: Heap leaching is a well-established extractive metallurgical technology enabling the economical processing of various kinds of low-grade ores, which could not otherwise be exploited as mentioned in this paper.
References
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Journal ArticleDOI
ToF-SIMS and SEM study on the preferential oxidation of chalcopyrite
TL;DR: In this paper, the ToF-SIMS was used to qualitatively characterize various fracture planes in freshly fractured chalcopyrite particles, prior to and after hydrometallurgical treatment.
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Shape of the Cu 2p core level photoemission spectrum for monovalent, divalent and trivalent Cu compounds
TL;DR: In this paper, the shape of the 2p core level photoemission spectrum for Cu2O, CuO and NaCuO2, where Cu is formally mono-, di-and trivalent, respectively, was calculated.
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Mathematical modeling of thermophilic bioleaching of chalcopyrite
Javier Vilcáez,Chihiro Inoue +1 more
TL;DR: In this article, a thermophilic bio-leaching of chalcopyrite is investigated based on the assumption that thermophiles' preference to oxidize S 0 or Fe 2+ is reflected by different [Fe 3+ ]/[Fe 2+ ] levels in solution.
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XANES in chalcopyrites semiconductors: CuFeS2, CuGaS2, CuInSe2
TL;DR: In this article, the XANES spectra at the K-edges and L -edges of the anions and cations of CuFeS 2, CuGaS 2 and CuInSe 2 have been recorded.
Journal ArticleDOI
Voltammetry and XPS analysis of a chalcopyrite CuFeS2 electrode
TL;DR: A chalcopyrite CuFeS 2 electrode obtained from the “El Teniente” mine (Chile) has been studied by cyclic voltammetry (CV) in a borax alkaline solution at pH 9.2 and by X-ray photoelectron spectroscopy (XPS) before and after the electrochemical treatment at oxidation and reduction potentials as mentioned in this paper.