Results 71 to 80 of about 12,905 (231)

An initial electrochemical study into the (Bio)Leaching of chalcopyrite

open access: yes, 2011
Includes abstract.Includes bibliographical references.Hydrometallurgical methods are increasingly considered as alternatives to conventional pyrometallurgical techniques for extraction of metals from mineral ores. Chalcopyrite is a key copper mineral due
Namane, Mpho
core  

Chalcopyrite-Derived NaxMO2 (M = Cu, Fe, Mn) Cathode: Tuning Impurities for Self-Doping

open access: yes, 2019
Discovering cathode materials composed of earth-abundant elements has become the current priority for developing sodium-ion batteries (SIBs) to meet the ever-increasing demand of large-scale energy storage. Herein, for the first time, layered NaxMO2 (M =
Yue Yang (52715)   +17 more
core   +1 more source

Impact and Crystallization Modeling of the Sudbury Basin and Its Implications for a Hadean Crust

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract The 1.85 Ga Sudbury Structure hosts Earth's largest and best‐preserved impact‐induced melt sheet, the Sudbury Igneous Complex (SIC), which crystallized into distinct noritic, gabbroic, and granophyric layers. We conduct impact simulations with iSALE‐2D and crystallization modeling using alphaMELTS 2 to track the formation and evolution of the ...
Nicolas B. Litza   +10 more
wiley   +1 more source

Effects of intermittent irrigation on the extraction of copper from heap bioleaching systems.

open access: yes, 2013
Includes bibliographical references.The use of microorganisms for the regeneration of leach agents in the heap leaching of mineral sulfide ores is finding increasing application as a hydrometallurgical unit operation applicable to the treatment of the ...
Vries, Eustice
core  

Anhydrous minerals in asteroid Bennu: Evidence for well‐preserved primordial components

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 6, Page 963-986, June 2026.
Abstract Aqueously altered carbonaceous astromaterials are dominated by secondary minerals, but a minor fraction of primary, anhydrous silicates and oxides escape alteration, offering insight into the original composition of asteroid parent bodies. We report the mineralogy, petrology, mineral chemistry, and oxygen isotopes of anhydrous minerals—50 ...
S. S. Russell   +23 more
wiley   +1 more source

Factors affecting the attachment of Metallosphaera hakonensis during the colonisation of low grade mineral sulphide heaps

open access: yes, 2011
This thesis pertains to the extraction of copper via heap bioleaching, focussing specifically on the bioleaching of the mineral sulphide, chalcopyrite (CuFeS2).
Bromfield, Lucinda
core  

Electron paramagnetic resonance, optical absorption and Raman spectral studies on a pyrite/chalcopyrite mineral

open access: yes, 2012
Pyrite and chalcopyrite mineral samples from Mangampet barite mine, Kadapa, Andhra Pradesh, India are used in the present study. XRD data indicate that the pyrite mineral has a face centered cubic lattice structure with lattice constant 5.4179 Å. Also it
Seshamaheswaramma, K.   +5 more
core   +1 more source

Microbially-induced separation of chalcopyrite and galena

open access: yes, 2008
Cells of Paenibacillus polymyxa and their metabolic products such as bioproteins and exopolysaccharides could be effectively used in the separation of galena from chalcopyrite.
Patra, Partha, Natarajan, K. A.
core   +2 more sources

Effects of turbomilling parameters on the simultaneous grinding and ferric sulfate leaching of chalcopyrite [PDF]

open access: yes
"As part of its mission, the U.S. Bureau of Mines continues to develop technologies that will enable cost-effective compliance with environmental requirements.

core  

Trace elements in hydrothermal chalcopyrite

open access: yes, 2018
Concentration data are reported for 18 trace elements in chalcopyrite from a suite of 53 samples from 15 different ore deposits obtained by laser-ablation inductively-coupled plasma-mass spectrometry.
Ciobanu, Cristiana L.   +7 more
core   +1 more source

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