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
Kinetics of copper dissolution from sulfidized chalcopyrite at high pressures in H2SO4–O2
TL;DR: In this article, a kinetic study of the pressure leaching of sulfidized chalcopyrite concentrate in H 2 SO 4 -O 2 solutions was performed and the results indicated that the copper dissolution rate increases with increasing temperature and partial pressure of oxygen.
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Effect of activated carbon on chalcopyrite bioleaching with extreme thermophile Acidianus manzaensis
Chang-li Liang,Jin-lan Xia,Xiao-juan Zhao,Yi Yang,Gong Sanqiang,Zhen-yuan Nie,Chen-yan Ma,Lei Zheng,Y. B. Zhao,Guanzhou Qiu +9 more
TL;DR: In this article, the effect of activated carbon on chalcopyrite bioleaching by extreme thermophile Acidianus manzaensis YN25 at 65°C was evaluated.
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Investigation of the kinetics of chalcopyrite oxidation by potassium dichromate
TL;DR: In this paper, the kinetics of chalcopyrite oxidation by potassium dichromate in sulphuric acid were investigated and the activation energy was 48-54 kJ/mol.
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p-type transparent conductor: Zn-doped CuAlS2
TL;DR: A series of Zn-doped CuAlS2 bulk samples was synthesized by spark plasma sintering, and the CuAl090Zn010S2 film was prepared on a glass substrate by channel spark ablation as discussed by the authors.
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Electrochemical hysteresis and bistability in chalcopyrite passivation
TL;DR: In this paper, a literature review of studies where the kinetic response of chalcopyrite leaching has been investigated as a function of controlled slurry potential, and the results of potentiostatic anodic polarizations, show that this mineral passivates at potentials higher than either 440mV or SCE.