Results 21 to 30 of about 29,721 (224)
Microwave improving copper extraction from chalcopyrite through modifying the surface structure
Journal of Materials Research and Technology, 2020 Microwave-assisted leaching as a green and efficient method for leaching chalcopyrite has attracted increasing attention. Researchers have actively explored the reasons why microwaves have a positive impact on copper extraction.
Tong Wen +6 more
doaj +1 more source
Research Status of the Effect of Typical Impurity Minerals and Ions on Chalcopyrite Leaching
Kuangchan zonghe liyong, 2022 Chalcopyrite is often associated with some impurity minerals such as pyrite, quartz, carbonateand silicate minerals, and the presence of these minerals will affect the leaching of chalcopyrite.
Hongguang Leng +3 more
doaj +1 more source
Utilization of flotation in copper extraction from polymetallic ore [PDF]
, 2020 The aim of this study was to examineflotation of utility metals from poor polymetallic ores and verify the potential for profitable yields in connection withpotentially economic deposits of non-ferrous metals.The paper describes results in ...
Janáková, Iva +2 more
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Chalcopyrite Dissolution at 650 mV and 750 mV in the Presence of Pyrite
Metals, 2015 The dissolution of chalcopyrite in association with pyrite in mine waste results in the severe environmental issue of acid and metalliferous drainage (AMD).
Yubiao Li +3 more
doaj +1 more source
Kinetics of nitric acid leaching of bornite and chalcopyrite
Chimica Techno Acta, 2023 The paper presents a study of the process of nitric acid dissolution of the natural minerals chalcopyrite and bornite. The influence of various parameters, including temperature, nitric acid concentration and particle sizes, on this process was examined.
Yuri Shklyaev +4 more
doaj +1 more source
Synthesis and Optical Properties of Cu2CoSnS4 Colloidal Quantum Dots [PDF]
, 2011 Monodisperse quaternary chalcopyrite Cu2CoSnS4 colloidal quantum dots have been synthesized by acid peptization of a tailored Cu2CoSnS4 precursor displaying loosely packed, ultrafine primary crystallites.
Balocchi, Andréa +4 more
core +2 more sources
International Journal of Electrochemical Science, 2017 In this work, bioleaching of chalcopyrite-pyrite and chalcopyrite-bornite mixed ores in the presence of moderately thermophilic microorganisms (A.caldus, L.ferriphilum and mixed culture) were carried out.
Yulin Huang +9 more
doaj +1 more source
Metals, 2020 Porphyry Cu-Mo deposits, which are the most important sources of copper and molybdenum, are typically processed by flotation. In order to separate Cu and Mo minerals (mostly chalcopyrite and molybdenite), the strategy of depressing chalcopyrite while ...
Ilhwan Park +4 more
doaj +1 more source
Sulfur isotope rations of sulfide minerals from the deposit of the Tsuchikura mine, Shiga Prafecture, Japan [PDF]
, 1998 Sulfur isotope rations of sulfide minerals in the ore specimens from the deposit of the Tsuchikura mine are distrib-uted in a range from -0.8 to 5.4%, mostly from +0.5 to 3.0%, close to the previous data (from +1 to +3%) by Miyake and Sasaki (1980).
Harada, Kaori +2 more
core +1 more source
Raman microprobe characterization of electrodeposited S-rich CuIn(S,Se)2 for photovoltaic applications: Microstructural analysis [PDF]
, 2007 This article reports a detailed Raman scattering and microstructural characterization of S-rich CuIn(S,Se)2 absorbers produced by electrodeposition of nanocrystalline CuInSe2 precursors and subsequent reactive annealing under sulfurizing conditions ...
Bermudez, V. +10 more
core +1 more source