Results 21 to 30 of about 3,676 (209)

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

Comparison of isotope data obtained with Sm-Nd and Re-Os methods for minerals and rocks from the Ozernoe ore occurrence, Salla-Kuolajarvi belt

open access: yesVestnik MGTU, 2021
Sm-Nd isochrone, drawn for rock-forming and sulfide minerals from the Ozernoe ore occurrence, indicates albitite age of 1,759 ± 11 Ma. It shows synchronous formation of albitite and sulfide mineralization, and fully corresponds to the earlier defined age
Kalinin A. A.   +2 more
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

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

Flotation separation of chalcopyrite and molybdenite by externally controlled potential method

open access: yes工程科学学报, 2019
Chalcopyrite-molybdenite separation has always been a major difficulty in mineral processing. At present, chemical agents are commonly used to regulate the pulp potential.
SONG Kun   +4 more
doaj   +1 more source

The depressing effect of kaolinite on molybdenite flotation in seawater

open access: yes, 2020
Copper-molybdenum grades of important mining deposits have progressively decayed, which is associated with high levels of clay minerals which affect froth flotation.
Ramirez A.   +3 more
core   +2 more sources

ICP-MS Analysis of Rare Earth Elements and Trace Elements of Molybdenite in the Jiama Super-large Copper Polymetallic Deposit, Tibet

open access: yesYankuang ceshi, 2015
The Jiama super-large copper polymetallic deposit has molybdenum resources in excess of one million tons, and molybdenite is the most important molybdenum mineral.
YING Li-juan   +4 more
doaj   +1 more source

Estudo da oxidação dos sulfetos sintéticos molibdenita (MoS2) e covelita (CuS) por Acidithiobacillus ferrooxidans via respirometria celular Oxidation study of the synthetic sulfides molybdenite (MoS2) and covellite (CuS) by Acidithiobacillus ferrooxidans using respirometric experiments

open access: yesQuímica Nova, 2009
This paper analyses the oxidation of covellite and molybdenite by Acidithiobacillus ferrooxidans strain LR using respirometric experiments. The results showed that both sulfides were oxidized by A.
Wilmo E. Francisco Junior   +2 more
doaj   +1 more source

Selective Leaching of Molybdenum from Bulk Concentrate by Electro-Oxidation

open access: yesMetals, 2021
This paper proposes selective leaching of molybdenum from Mo/Cu complex bulk concentrates in a 5 M NaCl solution using the electro-oxidation method. Here, the effects of several factors such as pH, pulp density, current density, and temperatures were ...
Kyeong Woo Chung   +3 more
doaj   +1 more source

Study on Process Mineralogy and Mineral Processing Technology of A Low Grade Copper-Molybdenum Ore

open access: yesKuangchan zonghe liyong, 2023
A copper-molybdenum ore in Qinghai contains 0.084% Mo and 0.067% Cu. Process mineralogical study shows that molybdenum in the ore mainly exists in the form of molybdenite, while copper in the form of chalcopyrite, chalcocite and bornite.
Xingwang Zhang, Zhiyong Sun
doaj   +1 more source

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