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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Silver-catalyzed bioleaching of low-grade copper ores. Part I Shake flasks tests
TL;DR: In this article, a study of the effect of different variables (inoculation, pulp density, [Ag], nutrient medium, pH and [Fe 3+ ]) on the silver-catalyzed bioleaching of a low-grade copper sulfide ore has been carried out in shake flasks.
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Bioleaching of a chalcopyrite concentrate with moderate thermophilic microorganisms in a continuous reactor system
TL;DR: In this paper, a process for continuous bio-leaching of chalcopyrite concentrates using moderate thermophilic microorganisms and silver ions was optimized using a series of three stirred-tank reactors under the following experimental conditions.
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Mechanism of enhanced bioleaching efficiency of Acidithiobacillus ferrooxidans after adaptation with chalcopyrite
TL;DR: In this article, the role and mechanism of bacterial adaptation in bioleaching, the leaching of chalcopyrite by adapted and unadapted acidithiobacillus ferrooxidans was compared.
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Electrochemical passivation of sphalerite during bacterial oxidation in the presence of galena
TL;DR: In this article, the effect of galena on the leaching of sphalerite is studied for bacterial and ferric sulphate leaching during both leaching processes, and it is believed that this selective behaviour is due to galvanic interactions between the two minerals.
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Effect of activated carbon on the bioleaching of chalcopyrite concentrate
TL;DR: In this paper, the effect of activated carbon on the bio-leaching of chalcopyrite concentrate, which contained pyrite, sphalerite and galena as sulfide gangue minerals, has been investigated using Thiobacillus ferrooxidans.