Journal ArticleDOI
A review of the structure, and fundamental mechanisms and kinetics of the leaching of chalcopyrite.
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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
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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.
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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.
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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.
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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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Surface Oxidation of Chalcopyrite ( CuFeS2 ) in Alkaline Solutions
TL;DR: In this article, the surface oxidation of chalcopyrite in solutions of pH 9.2 and 12.7 has been investigated using electrochemical techniques, X-ray photoelectron spectroscopy, and Auger electron spectrographs.
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A review of chloride assisted copper sulfide leaching by oxygenated sulfuric acid and mechanistic considerations
TL;DR: In this article, the first stage leaching of chalcocite to an intermediate CuS appears to be controlled by the mass transport of oxygen to the sulfide surface.
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The Active-Passive Behavior of Chalcopyrite Comparative Study Between Electrochemical and Leaching Responses
TL;DR: In this article, the performance of chalcopyrite in H 2 O-H2S04-Fe2(S04)3-FeS04 media was studied using both electrochemical techniques and leaching experiments.
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Study of Bacterial Attachment During the Bioleaching of Pyrite, Chalcopyrite, and Sphalerite
TL;DR: In this paper, the degree of bacterial attachment of the main microorganisms involved in the bio-leaching of metal sulfides and their influence on the dissolution rate and final metal extractions were determined.
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Electronic structures of CuFeS2 and CuAl0.9Fe0.1S2 studied by electron and optical spectroscopies.
TL;DR: The Fe 3d-derived states are revealed by the valence-band XPS spectra and the Fe 3p core resonance photoemission spectra, indicating strong covalency between theFe 3d and S 3p orbitals.