Results 1 to 10 of about 3,525 (209)

Mechanism of Microwave Activation on Molybdenite [PDF]

Materials, 2021
The effect of microwave activation on the properties of oxidation roasting for molybdenite was investigated under the protection of inert gas, and the specific surface area, the oxidation properties, lattice constant, microstructure, and shape of molybdenite were analyzed and characterized by a laser particle size analyzer, thermogravimetry (TG), X-ray
Yang, Shuangping, Zhang, Tiantian, Liu, Shouman, Sun, Haixing   +3 more
europepmc   +4 more sources

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,
Hui Li, Yongjun Peng, He Wan
exaly   +4 more sources

A novel molybdenite depressant for efficient selective flotation separation of chalcopyrite and molybdenite

International Journal of Mining Science and Technology
A novel small molecule depressant (M-DEP) was used to separate chalcopyrite and molybdenite via flotation. The results showed that M-DEP had an excellent selective depression on molybdenite, while had little effect on the flotation of chalcopyrite.
Weijun Peng, Mengyao Qi, Longyu Zhang
exaly   +4 more sources

Adsorption Equilibrium and Mechanism and of Water Molecule on the Surfaces of Molybdenite (MoS2) Based on Kinetic Monte-Carlo Method [PDF]

Molecules, 2022
The oxidation/weathering of molybdenite (MoS2) is too slow to be monitored, even under pure oxygen and high temperatures, while it proceeds rapidly through humid air.
Ruilin Wang, Xinyu Wang, Zhijun Zuo, Shijun Ni, Jie Dai, Dewei Wang   +5 more
doaj   +2 more sources

Study on Degradation of Sulfamethoxazole in Water by Activated Persulfate of Molybdenite Supported on Biochar [PDF]

Molecules
In this study, the advanced oxidation system of peroxymonosulfate (PMS) was activated by molybdenite supported on biochar (Molybdenite@BC), and the degradation efficiency, influencing factors and degradation mechanism of sulfamethoxazole (SMX) were ...
Xuemei Li, Jian Wang, Xinglin Chen, Shengnan Li, Hai Lu   +4 more
doaj   +2 more sources

Using pectin to separate talc and molybdenite through the surface modification with Cu2+: Applications and mechanism

International Journal of Mining Science and Technology, 2023
Organic depressants have low selectivity in separating molybdenite and talc because their metal sites lack activity for organics chemisorption. In this study, surface modification by copper sulfate was used to induce the differential adsorption of pectin
Changtao Wang, Qilin Zhai, Runqing Liu, Meirong Wu, Wei Sun, Nianwen Jing, Feifei Xie   +6 more
doaj   +2 more sources

Experimental and Mechanistic Study on Flotation Separation of Chalcopyrite and Molybdenite Using the Novel Depressant 2-Mercapto-6-Methylpyrimidin-4-ol [PDF]

Molecules
Chalcopyrite and molybdenite are vital strategic metal resources. Due to their close association in ores, flotation methods are commonly used for separation.
Xiangwen Lv, Anruo Luo, Xiong Tong, Jianhua Chen, Sheng Jian   +4 more
doaj   +2 more sources

Alternative sources of molybdenum for Methanococcus maripaludis and their implication for the evolution of molybdoenzymes [PDF]

Communications Biology
Molybdoenzymes are essential in global nitrogen, carbon, and sulfur cycling. To date, the only known bioavailable source of molybdenum (Mo) is molybdate.
Devon Payne, Lisa M. Keller, James Larson, Brian Bothner, Daniel R. Colman, Eric S. Boyd   +5 more
doaj   +2 more sources

Exploration of amino trimethylene phosphonic acid to eliminate the adverse effect of seawater in molybdenite flotation

International Journal of Mining Science and Technology, 2021
In this investigation, a chelating agent of amino trimethylene phosphonic acid (ATMP) was introduced to eliminate the adverse effect of seawater in molybdenite flotation.
Guanghua Ai, Kaihua Huang, Cheng Liu, Siyuan Yang   +3 more
doaj   +1 more source

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