Results 31 to 40 of about 7,257 (220)

Incorporation of incompatible trace elements into molybdenite: Layered PbS precipitates within molybdenite

American Mineralogist, 2022
Abstract Trace elements in molybdenite can provide important information regarding the composition of ore-forming fluid and the evolution and genesis of ore deposits. However, the occurrence states and behavior of relatively incompatible trace elements (e.g., Pb and Os) in natural molybdenite remain ambiguous.
Yiping Yang, Hongping He, Wei Tan, Qi Tao, Junming Yao, Haiyang Xian, Shangying Li, Jiaxin Xi, Jianxi Zhu, Huifang Xu   +9 more
openaire   +1 more source

Improving fine molybdenite flotation using a combination of aliphatic hydrocarbon oil and polycyclic aromatic hydrocarbon

Results in Physics, 2019
Kerosene is widely used as a collector in molybdenite flotation. However, it can only adsorb on molybdenite faces but not on molybdenite edges, which is unfavorable for the flotation of fine molybdenite particles with high edge/face ratios. In this study,
Tingshu He, Hui Li, Jianping Jin, Yongjun Peng, Yubin Wang, He Wan   +5 more
doaj   +1 more source

Flotation separation of chalcopyrite and molybdenite by externally controlled potential method

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, SONG Yong-sheng, ZHANG Qi-dong, LI Wen-juan, LE Guan   +4 more
doaj   +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]

, 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., Crowley, Q.G., Feely, M., Selby, D.   +3 more
core   +1 more source

Optimization of molybdenite flotation using response surface method [PDF]

, 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, Khanchi, A, Rahmani, A, Zojaji, A   +3 more
core   +1 more source

Comparative study of mechanical activation of molybdenite (MoS2) with and without magnesium (Mg) addition

Mongolian Journal of Chemistry, 2016
Molybdenite concentrate was mechanically activated in the presence of magnesium metal using a planetary mill in order to try to form elemental molybdenum.
J. Temuujin, N. Setoudeh, N.J. Welham
doaj   +1 more source

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

Yankuang 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, LIN Bin, WANG Li-qiang, LI Chao, WANG Kuo   +4 more
doaj   +1 more source

Rhythmical patterns of quartz-molybdenite and interpretation of its origin

Литосфера, 2016
Subject of the study was molybdenite aggregate (0.9 × 0.5 cm) in granite from Cu ± Mo-porphyry mineralisation (Altynai Massif, eastern part of Middle Urals).
O. B. Azovskova, A. I. Grabezhev, V. V. Khiller, V. N. Smirnov, S. P. Glavatskih   +4 more
doaj   +2 more sources

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

Metals, 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, Seunggwan Hong, Sanghee Jeon, Mayumi Ito, Naoki Hiroyoshi   +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

Química 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, Denise Bevilaqua, Oswaldo Garcia Júnior   +2 more
doaj   +1 more source