Results 91 to 100 of about 12,905 (231)

Electrochemical Behaviour of Chalcopyrite in Chloride Solutions

Metals, 2019
Due to the depletion of oxidized copper ores, it necessitates the need to focus on metallurgical studies regarding sulphide copper ores, such as chalcopyrite.
Luis Beiza, Víctor Quezada, Evelyn Melo, Gonzalo Valenzuela   +3 more
doaj   +1 more source

The role of nitrogen on the flotation performance of a complex sulphide ore

, 2000
Bibliography: leaves 94-99.This thesis focuses on the role of nitrogen on flotation performance of a sulphide PGM ore. Merensky ore obtained from Impala Platinum mine, Rustenburg, was used in laboratory batch flotation tests.
Bacus, Imraan
core  

Enhancement of optical absorption in Ga-chalcopirite-based intermediate-band materials for high efficiency solar cells

, 2010
We present absorption properties enhancement for two CuGaS2-based intermediate-band materials, as promising compounds for high efficiency, lower-cost photovoltaic devices.
P. Wahnón, P. Palacios, Palacios Clemente, Pablo, I. Aguilera, Aguilera Bonet, Irene, Wahnón Benarroch, Perla   +5 more
core   +1 more source

Flotation of oxidised chalcopyrite

, 2010
The effect of mineral oxidation on the flotation performance of chalcopyrite was investigated at pH 9.5 as a function of pm1icle size and collector concentration.
Shi, Y., Fornasiero, D.
core  

Novel pathway of chalcopyrite formation at low temperature in microenvironments of acidic, metal-rich sediments

Communications Earth & Environment
Chalcopyrite (CuFeS2) is the main source of copper worldwide and is usually formed at high temperature. Its occurrence at low temperature is poorly documented, and the mechanisms controlling its formation remain uncertain.
Andrey M. Ilin, Iñaki Yusta, Maxim Ilyn, Ana Martinez-Amesti, Charlotte van der Graaf, Irene Sánchez-Andrea, Andreas Scheinost, Damien Prieur, Andrea Sorrentino, Robert Oliete, Zhiquan Li, Weiduo Hao, Yuhao Li, Daniel Alessi, Kurt O. Konhauser, Javier Sánchez-España   +15 more
doaj   +1 more source

Effect of Mechanical Activation on Electrochemical Properties of Chalcopyrite in Iron-Containing Sulfuric Acid Solutions

Metals
Mechanical activation significantly enhances the leaching of chalcopyrite, a process that is fundamentally electrochemical in nature. Thus, a comprehensive understanding of its impact on the electrochemical behavior of chalcopyrite in leaching systems is
Yuxin Li, Zuyuan Tian, Xu Wang, Congren Yang   +3 more
doaj   +1 more source

Chalcopyrite Dissolution: Challenges

Chalcopyrite is the main source of copper in the world, amounting to nearly 70% of the copper reserves. Nonetheless, chalcopyrite is highly recalcitrant to chemical and biological processing for copper extraction.
Toledo, Ailton Guilherme Rissoni [UNESP], Tuovinen, Olli H., Crocco, Laíze Guimarães [UNESP], Benedetti, Assis Vicente [UNESP], Peres, Riberto Nunes [UNESP], Bevilaqua, Denise [UNESP], da Costa, Rachel Biancalana [UNESP]   +6 more
core   +1 more source

FAHLORES OF ORE FACIES OF THE YUBILEYNOE MASSIVE SULFIDE DEPOSIT (SOUTH URALS) [PDF]

Минералогия, 2018
The Ag-, Te-, Mn, Pb-bearing tennantite and minerals of the tennantite-tetrahedrite series are recognized in chalcopyrite-pyrite-sphalerite-talc-calcite smoker chimneys, bornite- and chalcopyrite-rich and quartz-carbonate-hematite diagenites and ...
A.S. Tseluyko, N.R. Ayupova, S.P. Maslennikova, V.A. Kotlyarov   +3 more
doaj  

An evaluation of sulfidisation in the flotation recovery of heavily oxidised sulfide minerals : with particular reference to oxidised Merensky ores

, 2007
Includes bibiographical references (p. 165-180)
Newell, Andrew James Haigh
core  

Iron and sulfur utilisation patterns in chemolithotrophic cultures

, 2012
In this study, the growth and behaviour of chemolithotrophic organisms in the presence of both ferrous and tetrathionate ions was investigated. Given the impact of chemolithotrophic metabolic activity upon the chemistry and leaching of mineral sulfide ...
Shiers, Denis
core