Results 71 to 80 of about 2,824 (186)

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

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  

Effect and Mechanism of New Chalcopyrite Depressant GX3 on Flotation Separation of Copper and Molybdenum

Kuangchan zonghe liyong
In view of the problems of environmental pollution and large consumption of reagents in traditional chalcopyrite depressant, it is of great significance to develop new depressant to achieve effective separation of copper and molybdenum.
Wentao XU, Yuemeng LIN, Baisui HAN, Haoyu XIE   +3 more
doaj   +1 more source

Advancing green flotation: Separation of Cu-Pb minerals through the application of eco-friendly organic double reaction group depressant

International Journal of Mining Science and Technology
Achieving efficient flotation separation of chalcopyrite and galena while maintaining environmental friendliness poses a challenge. This study utilized the environmentally friendly copolymer acrylic acid-2-acrylamide-2-methylpropanesulfonic acid (AA/AMPS)
Siqi Yang, Xianping Luo, Rufeng Chen, Louyan Shen, Xun Fan, Jiancheng Miao, Xuekun Tang   +6 more
doaj   +1 more source

Electrolysis of chalcopyrite

, 2018
Copper is one of the most important metals globally, due to its wide application range and excellent chemical properties. Today it is commonly produced from chalcopyrite concentrates by the pyrometallurgical route with high emissions of greenhouse gasses.
openaire   +1 more source

Chalcopyrite dissolution rate law from pH 1 to 3

Geologica Acta, 2009
Chalcopyrite dissolution kinetics in the pH range of 1 to 3 were studied by means of long-term flow-through experiments to obtain a dissolution rate law which can be coupled with reactive transport models to forecast Acid Rock Drainage.
P. ACERO, J. CAMA, C. AYORA, M.P. ASTA
doaj  

The role of Fe(III) and water in the oxidation of chalcopyrite. [PDF]

J Mol Model
Bazan SF, Duarte HA, de Lima GF.
europepmc   +1 more source

Adsorption Characteristics and Mechanistic Role of Ionic Species on the Chalcopyrite (112) Surface Based on DFT Simulations. [PDF]

Int J Mol Sci
Rios-Colque L, Robles PA, Quezada GR, Rios-Colque V.   +3 more
europepmc   +1 more source

Optimization of copper recovery from oxide-sulfide ores through gravity separation and flotation techniques. [PDF]

Sci Rep
Sobouti A, Rezai B.
europepmc   +1 more source