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.
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Oxidation of chalcopyrite by Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans in shake flasks
TL;DR: In this paper, acidithiobacillus thiooxidans in pure culture did not oxidize CuFeS2 but oxidized externally added S0 in the presence of Cu FeS2.
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Competitive bioleaching of pyrite and chalcopyrite
Jochen Petersen,David G. Dixon +1 more
TL;DR: In this article, an experimental study was conducted to investigate the heap bio-leaching of a copper-gold concentrate using the Geocoat™ technique using small-scale columns were operated at selected temperatures using bacterial consortia suited to these temperatures.
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The role of iron-oxidizing bacteria in stimulation or inhibition of chalcopyrite bioleaching
TL;DR: A series of bacterial and chemical leaching experiments were conducted to clarify contradictory reports in the literature regarding the role of bacteria in the bio-leaching of chalcopyrite as discussed by the authors.
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Synergistic effect of cupric and ferrous ions on active-passive behavior in anodic dissolution of chalcopyrite in sulfuric acid solutions
TL;DR: In this article, the effects of the addition of cupric and ferrous ions on anodic polarization curves and AC impedance spectra were investigated in 0.1 kmol m−3 sulfuric acid with stirring at 298 K in nitrogen.
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Acid leaching and dissolution of major sulphide ore minerals: processes and galvanic effects in complex systems
TL;DR: In this paper, the kinetics and mechanisms of dissolution of the major base metal sulphide minerals, pyrite, chalcopyrites, galena and sphalerite in acidic (chloride) media have been investigated.