Results 21 to 30 of about 2,611 (212)

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

E3S 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

Effects of Sodium Alginate on the Flotation Separation of Molybdenite From Chalcopyrite Using Kerosene as Collector

Frontiers in Chemistry, 2020
In this paper, the effect of sodium alginate (SA) on the flotation separation of molybdenite (MoS2) from chalcopyrite using kerosene as collector was systematically investigated.
Guangsheng Zeng, Leming Ou, Wencai Zhang, Yuteng Zhu   +3 more
doaj   +1 more source

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

Separations, 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, Yijun Cao, Lin Li, Qingliang Zeng   +3 more
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The depressing effect of kaolinite on molybdenite flotation in seawater

, 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., Reyes-Bozo L., Vega-Garcia D., Gutierrez L.   +3 more
core   +2 more sources

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

Vestnik 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. , Kaulina T. V. , Serov P. A.   +2 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

Trace Element Composition of Molybdenite: Deposit Type Discrimination and Limitations

, 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, Yumiao Meng, Xiaowen Huang, Mao Tan   +3 more
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

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
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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
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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
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