Results 11 to 20 of about 2,449 (244)

DFT simulation of S-species interaction with smithsonite (0 0 1) surface: Effect of water molecule adsorption position

open access: goldResults in Physics, 2019
Surface sulfidization is the key to achieving good flotation performance of smithsonite, but its reaction mechanism at the atomic level remains poorly understood.
Jian Liu   +5 more
doaj   +2 more sources

A Strategy for Hydroxide Exclusion in Nanocrystalline Solid-State Metathesis Products [PDF]

open access: yesNanomaterials, 2013
We demonstrate a simple strategy to either prevent or enhance hydroxide incorporation in nanocrystalline solid-state metathesis reaction products prepared in ambient environments.
Jiaqi Cheng, Kristin M. Poduska
doaj   +5 more sources

Vegetation and Environmental Changes on Contaminated Soil Formed on Waste from an Historic Zn-Pb Ore-Washing Plant [PDF]

open access: yesBiology, 2021
Post-mining waste from Zn-Pb ore exploitation undergoes processes of spontaneous succession and changes in soil chemical composition. The Zakawie area was industrially transformed by historical mining activity, ore enrichment, and the metallurgical ...
Oimahmad Rahmonov   +2 more
doaj   +2 more sources

Sonication-Assisted Surface Erosion and Its Impact on the Flotation of Ultrafine Smithsonite [PDF]

open access: goldMetals
Regulating the dissolution and interfacial behavior of minerals via external force fields is considered a promising strategy for enhancing the flotation of soluble minerals.
Weiguang Zhou   +5 more
doaj   +2 more sources

Research of kinetics of zinc leaching with sulfuric acid from smithsonite

open access: greenMetalurgija, 2021
The study investigates the kinetics of zinc leaching from smithsonite with sulfuric acid in order to expand the zinc production feedstocks. The recovery rate of zinc from smithsonite into water-soluble zinc sulfate was found at different leaching time ...
R. A. Ramazanova   +5 more
doaj   +2 more sources

Oxygen Isotope Fractionation between Carbonate Minerals and Carbonic Acid Systems and Constraints for Environmental Science and Geological Processes [PDF]

open access: yesMolecules
The equilibrium oxygen isotope fractionation factor is widely used in geological thermometry. However, under most natural conditions, the oxygen isotope exchange is rare to reach equilibrium. Especially for the complex water–rock interaction process, the
Jixi Zhang
doaj   +2 more sources

Smithsonite flotation with lauryl phosphate

open access: greenMinerals Engineering, 2020
Abstract Smithsonite, the most abundant nonsulfide zinc mineral, has attracted growing attention due to the demand for zinc and the exhaustion of traditional sulfide zinc resources. Traditional flotation techniques are not efficient and do not easily separate smithsonite from other carbonate minerals, such as calcite. In this regard, lauryl phosphate
Weiping Liu   +3 more
openaire   +4 more sources

Investigation of the Leaching Kinetics of Zinc from Smithsonite in Ammonium Citrate Solution [PDF]

open access: goldMetals
In this study, the response surface method is used to develop a model for analyzing and optimizing zinc leaching experiments. An investigation into the leaching kinetics of smithsonite in ammonium citrate solution is also conducted.
Huiqin Chen, Dandan Wu, Ziang Wang
doaj   +2 more sources

Research Status of Mechanism of Flotation Reagents for Smithsonite

open access: greenKuangchan zonghe liyong
At present, the common flotation methods of smithsonite are sulfide-flotation, direct flotation and other collector flotation methods. However, smithsonite has the characteristics of fine disseminated particle size, complex structure and serious sliming,
Mingxi LI   +4 more
doaj   +2 more sources

Bonds, bands and elasticity of smithsonite rock

open access: greenSolid State Communications, 2013
Abstract The objective here is to spread out in detail the various fundamental state properties of smithsonite rock (ZnCO 3 ) for which the most intrinsic quantities remain still unknown. First-principles electronic structure calculations based on the density functional theory with the pseudopotential method were performed using diverse functionals ...
Bouibes, A., Zaoui, Ali, Tunega, Daniel
openaire   +5 more sources

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