Results 101 to 110 of about 2,611 (212)

Comparative study on the selective chalcopyrite bioleaching of a molybdenite concentrate with mesophilic and thermophilic bacteria

, 2001
This study evaluates different bioleaching treatments of a molybdenite concentrate using mesophilic and thermophilic bacterial cultures. Further studies on the chemical leaching and the electrochemical behavior of the MoS2 concentrate were carried out ...
Romano, P., Alguacil, Francisco José, Blázquez, M. L., González, F., Muñoz, J. A., Ballester, Alicia   +5 more
core   +1 more source

Investigation of chalcopyrite removal from low-grade molybdenite using response surface methodology and its effect on molybdenum trioxide morphology by roasting. [PDF]

RSC Adv, 2023
Behmadi R, Mirzaei M, Afshar MR, Najafi H.   +3 more
europepmc   +1 more source

Molybdenite occurrences in Greece: mineralogy, geochemistry and depositional environment

, 2010
Molybdenite occurs mainly in three mineralization types in Greece: (a) porphyry Mo-Cu-(±Te-Ag-Au), (b) reduced intrusion-related Mo-W systems (skarn, intrusion-hosted) and (c) shear zone-related Cu-Au-Bi-Mo. In porphyry-Mo-Cu prospects the molybdenite is
Moritz, Robert, Voudouris, P., Ortelli, Mélissa, Melfos, V., Kartal, T., Spry, P.G.   +5 more
core  

Inhibiting Mechanism of High pH on Molybdenite Flotation. An Experimental and DFT Study [PDF]

The inhibiting mechanism of high pH on the molybdenite flotation was studied using an experimental and DFT method. The experimental results found that adverse effects of pH on molybdenite flotation should be attributed to the adsorption of OH− on ...
Enxiang Wang, Wan, He, Qu, Juanping, Bu, Xianzhong, Juanping Qu, Yi, Peng, Wang, Enxiang, Peng Yi, He Wan, Xianzhong Bu   +9 more
core   +1 more source

Efficient and Green Flotation Separation of Molybdenite from Chalcopyrite Using 1-Thioglycerol as Depressant

Metals
The effective and environmental separation of chalcopyrite and molybdenite has long presented a challenge in mineral processing due to their similar floatability and close association at room temperature. This study explores the non-toxic 1-thioglycerol (
Feng Jiang, Shuai He, Wei Sun, Yuanjia Luo, Honghu Tang   +4 more
doaj   +1 more source

Structural, elastic, electronic, optical and vibrational properties of single-layered, bilayered and bulk molybdenite MoS₂-2H. [PDF]

J Appl Crystallogr, 2023
Ulian G, Valdrè G.
europepmc   +1 more source

Reactivity of a molybdenite concentrate against chemical or bacterial attack

, 2001
A study is made on the reactivity of a molybdenite concentrate (46.7% Mo) in response to chemical attack, using HNO3, H2SO4 of mixtures or both acids, or to attack by bacteria (mesophiles and moderate or extreme thermophiles).
Romano, P., Alguacil, Francisco José, Blázquez, M. L., González, F., P. Romano, A. Ballester, F. González, F.J. Alguacil, Ballester, Alicia, M.L. Blázquez   +9 more
core   +1 more source

Foaming Properties of Lignosulfonates in the Flotation Process. [PDF]

Polymers (Basel), 2023
Chique J, Uribe L, Pawlik M, Ramirez A, Gutierrez L.   +4 more
europepmc   +1 more source

Effect of water quality on chalcopyrite and molybdenite flotation

, 2010
The objective of this study is to investigate the effects of water quality on mineral floatability. For this, the species commonly found in process water, such as metal and sulphate ions, were investigated for their potential impact on the flotation ...
Sinche Gonzalez, M.M., Levay, G., Fornasiero, D.   +2 more
core  

Determination of 9 Elements in Molybdenum Ore by Wavelength Dispersive X-ray Fluorescence Spectrometry with Pressed Powder Pellet Preparation

Yankuang ceshi, 2014
In X-ray Fluorescent Spectrometric (XRF) analysis, particle size effect and the matrix effect were reported when the powder tableting method was used. However, under certain particle size, tableting time and pressure, the effects existed only for light ...
LI Qing-cai, ZHAO Qing-ling
doaj