Results 71 to 80 of about 19,320 (212)

Kinetics of Sphalerite Leaching by MnO₂-KI Oxidation System in Sulfuric Acid

Metals
Efficient extraction of zinc from polymetallic concentrates is crucial for the metallurgical industry. Traditional leaching techniques often rely on strong oxidizing agents, which can be wasteful and environmentally harmful.
Mladen Bugarčić, Aleksandar Jovanović, Dimitrije Anđić, Ivana Jelić, Milica Miletić, Branislav Marković, Miroslav Sokić   +6 more
doaj   +1 more source

Supernormal enrichment of cadmium in sphalerite via coupled dissolution-reprecipitation process

Communications Earth & Environment, 2023
Supernormal enrichment of cadmium in sphalerite is frequently observed in some sedimentary-hosted zinc-lead deposits, although related fluid process remains unconstrained.
Hongyu Duan, Changming Wang, Rong Hu, Jiaxuan Zhu, Jun Deng   +4 more
doaj   +1 more source

Petrography and mineral chemistry of Northeast Africa 053—A remnant of Martian crystal mush

Meteoritics &Planetary Science, EarlyView.
Abstract In Earth's igneous systems, crystal mushes, crystal‐rich frameworks permeated by silicate melt, represent a common and fundamental stage in the evolution of magma bodies. However, whether crystal mushes occur within Martian igneous systems and play a comparable role is unknown. Here, we present a comprehensive petrography and mineral chemistry
Xhonatan Shehaj, Eleonora Ammannito, Giovanni Pratesi   +2 more
wiley   +1 more source

Base metal mineralisation associated with Ordovician shales in south-west Scotland [PDF]

, 1984
Several narrow, lenticular belts of black cherty mudstone and siltstone (the Moffat Shales), alternating with thick greywacke sequences, strike north-east to south-west across Galloway with uniformly steep dip.
Jones, R.C., Leake, R.C., Stone, P.
core  

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, Volume 36, Issue 21, 12 March 2026.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Particle Shape-Based Evaluation of the Leaching of Sphalerite Ore in Dilute Acid Solutions

Journal of Advanced Research in Natural and Applied Sciences
In this study, the effects of changes in particle shapes on dissolution efficiencies in zinc (Zn) recovery from a lead-zinc (Pb-Zn) ore by acid leaching method were investigated.
Tuğba Deniz Tombal, İlgin Kurşun Ünver, Mert Terzi   +2 more
doaj   +1 more source

Influence of the Interaction between Sphalerite and Pyrite on the Copper Activation of Sphalerite [PDF]

Minerals, 2018
In this paper, the effect of pyrite on the activation of sphalerite was investigated by micro-flotation, copper adsorption experiments, X-ray photoelectron spectroscopy (XPS), and electrochemical measurement. The micro-flotation test results showed that the recovery and flotation rate of sphalerite with copper sulphate as activator and butyl xanthate ...
Bo Yang, Xiong Tong, Zhuoyue Lan, Yiqi Cui, Xian Xie   +4 more
openaire   +1 more source

Robust and Biocompatible Functionalization of ZnS Nanoparticles by Catechol-Bearing Poly(2-Methyl-2-Oxazoline)s. [PDF]

, 2018
Zinc sulfide (ZnS) nanoparticles (NPs) are particularly interesting materials for their electronic and luminescent properties. Unfortunately, their robust and stable functionalization and stabilization, especially in aqueous media, has represented a ...
Benetti, Em, Causin, V, De Fazio, Af, Gross, S., Ischia, G, Mognato, M, Morgese, G, Pedron, D, Piotto, C, Rosenboom, Jg   +9 more
core   +2 more sources

Ultra‐Durable Information‐Encoded Anti‐Counterfeiting Self‐Assembled Nanocrystal Labels

Advanced Optical Materials, Volume 14, Issue 11, 20 March 2026.
Ultra‐durable cost‐effective information‐encoded anti‐counterfeiting labels are fabricated to secure semiconductor chips. A novel method is used to self‐assemble colloidal quantum wells (CQWs) into color bars. Information can be encoded spatially, spectrally, and opto‐spatially.
Taha Haddadifam, Farzan Shabani, Mustafa Kalay, Aisan Khaligh, Evren Mutlugun, Mustafa Serdar Onses, Hilmi Volkan Demir   +6 more
wiley   +1 more source

On the sphalerite geobarometer.

GEOCHEMICAL JOURNAL, 1988
Even though the sphalerite geobarometer enjoys wide support as a very reliable parameter which gives pressure values consistent with the pressures obtained by different silicates equilibrium, thermodynamically the internal consistency of its experimental data may be questioned. The pressure read from the geobarometer should be regarded tentatively.
openaire   +2 more sources