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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Journal ArticleDOI
Bacterial leaching of complex sulfide ore samples in bench-scale column reactors
Lasse Ahonen,Olli H. Tuovinen +1 more
TL;DR: In this article, column bio-leaching of a complex sulfide ore material which contained chalcopyrite, pentlandite, pyrite and sphalerite as the main sulfide minerals was examined.
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The dissolution of chalcopyrite in chloride solutions Part 1. The effect of solution potential
TL;DR: In this paper, a study of the dissolution of several copper concentrates under controlled potential conditions in chloride solutions has demonstrated that the rate of dissolution of chalcopyrite is strongly dependent on the potential of the solution.
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Bioleaching of chalcopyrite by pure and mixed cultures of Acidithiobacillus spp. and Leptospirillum ferriphilum
TL;DR: In this paper, the authors investigated the bio-leaching of chalcopyrite in shake flasks with pure and mixed cultures of acidithiobacillus ferrooxidans, acidity thermophilic L. ferriphilum and A. caldus.
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Galvanic Interaction Studies on Sulphide Minerals
S. R. Rao,James A. Finch +1 more
TL;DR: In this paper, the potentials of pyrite electrodes in galvanic contact with a second sulphide were found to be significantly lower than the rest potential, which suggested electron transfer to pyrites which made it more reducing.
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Dissolution kinetics of chalcopyrite in acidic potassium dichromate solution
TL;DR: In this paper, the dissolution of chalcopyrite in acidic potassium dichromate solution was investigated with respect to the effects of sulphuric acid and pH by changing stirring speed, leaching temperature and particle size.