Results 21 to 30 of about 2,617 (212)

Trace Element Composition of Molybdenite: Deposit Type Discrimination and Limitations [PDF]

open access: yes, 2023
Molybdenite is a common sulfide hosting many trace elements. Trace elements in molybdenite from individual deposits have been widely used to constrain the source and conditions of ore-forming fluids.
Houmingrui Tan   +3 more
core   +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

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

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

Refining of a low-grade molybdenite concentrate [PDF]

open access: yes, 2007
This study aims to refine an indigenous off-grade molybdenite [41.5% Mo] to one of high-grade MoS2 for industrial applications. Investigations were carried out on the removal of the oxide/silicate gangue and the base metal sulphide associations by their ...
Murthy, D S R   +4 more
core   +1 more source

A molybdenite province in Norrbotten and Västerbotten, northern Sweden [PDF]

open access: yes, 1983
During the period 1967-1980 private prospectors recovered 122 molybdenite mineralized samples from Norrbotten and Vsterbotten, northern Sweden, representing acid igneous rocks of intrusive character, including quartz veins, supracrustal rocks of ...
Öhlander, Björn,
core   +1 more source

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

Flotation Separation of Chalcopyrite and Molybdenite Assisted by Microencapsulation Using Ferrous and Phosphate Ions: Part II. Flotation

open access: yesMetals, 2021
Porphyry-type deposits are the major sources of copper and molybdenum, and flotation has been adopted to recover them separately. The conventional reagents used for depressing copper minerals, such as NaHS, Na2S, and Nokes reagent, have the potential to ...
Ilhwan Park   +4 more
doaj   +1 more source

An enhanced dissolution rate of molybdenite and variable activation energy [PDF]

open access: yes, 2018
In this study, mechanical activation was applied to improve leaching rate of molybdenite concentrate. Milling experiments were performed at different conditions of ball to powder weight ratios and activation time.
Ida De Michelis   +11 more
core   +1 more source

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