Results 21 to 30 of about 50,853 (257)

The effect of quartz on the flotation of pyrite depressed by serpentine

open access: yesJournal of Materials Research and Technology, 2015
The effect of quartz particles on the flotation of pyrite depressed by serpentine has been investigated through flotation tests, adsorption tests, zeta potential measurements and DLVO calculation.
Bo Feng, Yiping Lu, Xianping Luo
doaj   +1 more source

Experimental Study on the Oxidation Reaction of Coal-Pyrite and Mineral-Pyrite with the Participation of Fe(III) and Bacteria under Acidic Conditions

open access: yesEnergies, 2023
As one of the crucial factors contributing to coal spontaneous combustion, the oxidation of pyrite is a complex process involving multiple reactions, particularly in the presence of oxidants (Fe3+ and O2) and bacteria. However, experimental results based
Mengya Ma   +3 more
doaj   +1 more source

Chalcopyrite Dissolution at 650 mV and 750 mV in the Presence of Pyrite

open access: yesMetals, 2015
The dissolution of chalcopyrite in association with pyrite in mine waste results in the severe environmental issue of acid and metalliferous drainage (AMD).
Yubiao Li   +3 more
doaj   +1 more source

Selective flotation of chalcopyrite from pyrite via seawater oxidation pretreatment

open access: yesInternational 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

Thermal Behavior of Pyrite in the CO2 and N2 Atmosphere for Obtaining Pyrrhotite: A Magnetic Material [PDF]

open access: yesMaterials 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

Sulphur in Pyrites [PDF]

open access: yesScientific American, 1882
n ...
openaire   +2 more sources

Limited role of sessile acidophiles in pyrite oxidation below redox potential of 650 mV

open access: yesScientific 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

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