Results 11 to 20 of about 9,030 (251)

Exploration of amino trimethylene phosphonic acid to eliminate the adverse effect of seawater in molybdenite flotation

open access: yesInternational Journal of Mining Science and Technology, 2021
In this investigation, a chelating agent of amino trimethylene phosphonic acid (ATMP) was introduced to eliminate the adverse effect of seawater in molybdenite flotation.
Guanghua Ai   +3 more
doaj   +1 more source

Activation of peroxymonosulfate by natural molybdenite for the degradation of atrazine [PDF]

open access: yesE3S Web of Conferences, 2020
In this work, molybdenite was used as a catalyst to activate peroxymonosulfate (PMS) for atrazine (ATZ) degradation. First, the effects of molybdenite dosage (0.05-0.30 g/L), PMS dosage (0.02-0.15 mM) and the initial pH (3.0-11.0) in the aqueous solution
Lai Leiduo, Lai Bo
doaj   +1 more source

Dissecting the Re-Os molybdenite geochronometer [PDF]

open access: yesScientific Reports, 2017
AbstractRhenium and osmium isotopes have been used for decades to date the formation of molybdenite (MoS2), a common mineral in ore deposits and the world’s main source of molybdenum and rhenium. Understanding the distribution of parent 187Re and radiogenic daughter 187Os isotopes in molybdenite is critical in interpreting isotopic measurements because
Fernando Barra   +5 more
openaire   +7 more sources

The study of molybdenite types related to the ore processing plant of the Sar Cheshmeh mine

open access: yesJournal of Economic Geology, 2011
Molybdenite occurs in five forms in the Sar Cheshmeh porphyry copper deposit, namely, (1)-veinlets with quartz-molybdenite, (2)-veinlets with quartz-molydenite that were filled with pyrite, (3)-veinlets with quartz-molybdenite-pyrite–chalcopyrite, (4 ...
Balandeh Aminzadeh   +2 more
doaj   +1 more source

Supramolecular Assembly and Interfacial Hydration of Tandem Repeat Dipeptides on 2D Nanomaterials: Insights From 3D-AFM Measurements and MD Simulations. [PDF]

open access: yesSmall
High‐resolution AFM visualization of nr‐YH dipeptide assemblies on graphite and MoS2 by 3D‐AFM reveals localized 3D hydration structures. These results underscore the critical role of water in stabilizing and organizing peptide assemblies on solid surfaces, thereby providing a highly potent biofunctionalization platform for biomedical and ...
Yurtsever A   +11 more
europepmc   +2 more sources

Anomalous supply of bioessential molybdenum in mid-Proterozoic surface environments [PDF]

open access: yes, 2016
We are grateful to A. Sandison and W. Thayalon for skilled technical support, and Mike Porter and an anonymous reviewer, who helped to clarify the manuscript.Peer ...
Lindgren, Paula, Parnell, John
core   +1 more source

Geochronology (Re–Os and U–Pb) and fluid inclusion studies of molybdenite mineralisation associated with the Shap, Skiddaw and Weardale granites, UK [PDF]

open access: yes, 2008
Late Devonian magmatism in Northern England records key events associated with the Acadian phase of the Caledonian-Appalachian Orogen (C-AO). Zircon U-Pb and molybdenite Re-Os geochronology date emplacement and mineralisation in the Shap (405·2±1·8 Ma ...
Conliffe, J.   +3 more
core   +1 more source

EFFECT of Pb2+ on the flotation of molybdenite in the presence of sulfide ion

open access: yesResults in Physics, 2019
Although Na2S doesn’t depress the flotation of molybdenite, as the most utilized depressant, its effect on the flotation of molybdenite in the case where Pb2+ is involved has not been investigated yet.
Qi Zhang   +6 more
doaj   +1 more source

Adsorption Characteristics and Mechanism of Calcium Ions on Different Molybdenite Surfaces via Experiments and DFT Simulations

open access: yesSeparations, 2021
Calcium ions are common in flotation process water, and have a significant effect on the molybdenite floatability, making separation of molybdenite from other minerals more difficult.
Liqing Sun   +3 more
doaj   +1 more source

Optimization of molybdenite flotation using response surface method [PDF]

open access: yes, 2018
Purpose. The paper is aimed to study the molybdenite flotation from a low-grade uranium ore containing 0.2% of Mo. Methods. Three control parameters including frother (MIBC) dosage, collector (gasoline) dosage and pH, each in five levels, were ...
Badri, R   +3 more
core   +1 more source

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