Results 21 to 30 of about 9,068 (209)
Selective flotation of chalcopyrite from pyrite via seawater oxidation pretreatment
International Journal of Mining Science and Technology, 2023 The flotation separation of chalcopyrite from pyrite has attracted increasing attention due to the consumption of vast water resources and depressants.
Wanqing Li +4 more
doaj +1 more source
Limited role of sessile acidophiles in pyrite oxidation below redox potential of 650 mV
Scientific Reports, 2017 Pyrite oxidation by mixed mesophilic acidophiles was conducted under conditions of controlled and non-controlled redox potential to investigate the role of sessile microbes in pyrite oxidation.
Chang Liu +6 more
doaj +1 more source
Thermal Behavior of Pyrite in the CO2 and N2 Atmosphere for Obtaining Pyrrhotite: A Magnetic Material [PDF]
Materials Research, 2018 In the southern of Brazil the coal is composed of a large amount of pyrite (FeS2), an environmental problem for this region because the pyrite turns a waste.
Eunice Machado de Oliveira +4 more
doaj +1 more source
DFT Study into the Influence of Carbon Material on the Hydrophobicity of a Coal Pyrite Surface
Molecules, 2019 From the macroscopic point of view, the hydrophilicity of symbiotic carbon pyrite is weakened overall compared to that of pure pyrite. It is very important to explain the impact of elemental carbon accreted on a pyrite surface on the surface’s ...
Peng Xi +3 more
doaj +1 more source
Desulphurization of coals of different ranks in the presence of slimes by reverse flotation
Energy Reports, 2019 In this paper, the flotation separation of pyrite from sub-bituminous and meta-bituminous coals in the presence of slimes was investigated. The sub-bituminous coal and the meta-bituminous coal have significant differences in their surface properties ...
You Zhou +5 more
doaj +1 more source
The Morphological Characteristics of Authigenic Pyrite Formed in Marine Sediments
Journal of Marine Science and Engineering, 2022 Pyrites are widely distributed in marine sediments, the morphology of which is applied as a proxy to infer the redox conditions of bottom water, and identify diagenetic stages and hydrocarbon leakage activities.
Jingyi Chang, Yuanyuan Li, Hailong Lu
doaj +1 more source
Plaid‐Like Spin Splitting and Chirality of Magnon Bands in Antiferromagnetic MnTe2
Advanced Science, EarlyView.Helicity‐ and angle‐resolved Raman spectroscopy reveals chiral magnons in the non‐coplanar antiferromagnet MnTe 2. Combined with first‐principles calculations and spin‐wave theory, the results establish its altermagnetic character through circular Raman dichroism, reduced rotational symmetry, and a distinctive plaid‐like momentum‐space magnon spin ...
Dirk Wulferding +10 more
wiley +1 more source
Metals, 2017 The effect of pyrite and the role of ammonium alcohol polyvinyl phosphate (AAPP) during gold leaching in ammoniacal thiosulfate solutions were investigated using pure gold foils.
Xiaoliang Liu +7 more
doaj +1 more source
Microbiology Indonesia, 2020 Given the low-cost and eco-friendly method, biotechnology has been widely utilized in industries as an alternative for physical and chemical processes, including in the biomining process (e.g., bioflotation and biobeneficiation).
Edy Sanwani +5 more
doaj +1 more source
Advanced Energy Materials, EarlyView.A vacancy‐stabilized Pt,Mo‐NiSeO4/NiSe2@Co2P heterostructure with atomically dispersed Pt sites and Mo‐regulated electronic structure enables efficient bifunctional water splitting. Strong interfacial coupling and defect‐assisted Pt stabilization promote rapid charge transfer and optimized intermediate adsorption, delivering outstanding HER/OER ...
Thokchom Anjali Devi +7 more
wiley +1 more source