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
Electrochemical study of leached chalcopyrite using solid paraffin-based carbon paste electrodes
Maziar Sauber,David G. Dixon +1 more
TL;DR: In this article, the pyrite-assisted leaching of chalcopyrite concentrate in iron sulfate media was investigated and it was shown that the catalytic effect of pyrites is variable depending on the source of the sample.
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Relationship and effect of redox potential, jarosites and extracellular polymeric substances in bioleaching chalcopyrite by acidithiobacillus ferrooxidans
TL;DR: In this article, the changes of pH, redox potential, concentrations of soluble iron ions and Cu 2+ with the time of bio-leaching chalcopyrite concentrates by acidithiobacillus ferrooxidans were investigated under the different conditions of initial total-iron amount as well as mole ratio of Fe(III) to Fe(II) in the solutions containing synthetic extracellular polymeric substances (EPS).
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Comparison of bioleaching ability of two native mesophilic and thermophilic bacteria on copper recovery from chalcopyrite concentrate in an airlift bioreactor
Seyyed Mohammad Mousavi,Soheila Yaghmaei,Manouchehr Vossoughi,Arezou Jafari,Seyed Ali Hoseini +4 more
TL;DR: A mesophilic iron oxidizing bacterium, Acidithiobacillus ferrooxidans, has been isolated (33 °C) from a typical chalcopyrite copper concentrate of the Sarcheshmeh copper mine in the region of Kerman located in the south of Iran as mentioned in this paper.
Journal ArticleDOI
Magnetically ordered multinary semiconductors
TL;DR: In this paper, the correlation between crystal chemistry, electronic structure and magnetic state has been studied and a number of features such as low magnetic dimensionality, spin glass and cluster glass, helimagnetism are considered as a result of the predominant or disordered distribution of magnetic cations over the ordered crystal lattice.
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ESR-analysis of the chalcopyrite structure: CuGaS2:Fe3+
J. Schneider,A. Räuber,G. Brandt +2 more
TL;DR: In this paper, the electron spin resonance spectrum of Fe3+ impurity ions in the ternary semiconductor CuGaS2 has been analyzed and two magnetically inequivalent metal sites in the chalcopyrite lattice could be distinguished via fourth order terms in the spin Hamiltonian.