Flotation Gangue Molybdenite
Collectorless flotation separation of molybdenite from …
DOI: 10.1016/j.seppur.2023.124207 Corpus ID: 258972450; Collectorless flotation separation of molybdenite from complex sulfide minerals employing a bi-carbonyl depressant @article{Zhang2023CollectorlessFS, title={Collectorless flotation separation of molybdenite from complex sulfide minerals employing a bi-carbonyl depressant}, author={Wanjia Zhang …
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The Life Cycle of Water Used in Flotation: a Review
For instance, the entrainment and entrapment of gangue minerals in coal flotation were investigated by Wang and Peng ... As seawater is detrimental to molybdenite flotation under alkaline conditions (> 9.5), the wide application of seawater in separating chalcopyrite and molybdenite is restricted.
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Recent progress on research of molybdenite flotation: A review
Effect of gangue minerals on molybdenite flotation. Limestone skarn ore (LSN) is reported to have a negative effect on molybdenite recovery in the Bingham Canyon mine. …
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Recent progress on research of molybdenite flotation: A review
Cations like Ca 2+ and Mg 2+ are reported to have negative effects on the flotation of molybdenite in alkaline solution, and dispersants and oil collectors need to be added to restore the flotation of molybdenite. In addition, effects of gangue minerals, particle size, and oil …
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The Interaction between Ca2+ and Molybdenite Edges …
directly depress molybdenite flotation even in the absence of fine gangue particles. Lucay et al. [16] studied the effect of gypsum on the floatability of molybdenite in saline solutions using a ...
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A novel copper depressant for selective flotation of chalcopyrite …
Cations like Ca 2+ and Mg 2+ are reported to have negative effects on the flotation of molybdenite in alkaline solution, and dispersants and oil collectors need to be added to restore the flotation of molybdenite. In addition, effects of gangue minerals, particle size, and oil collectors and surfactants on molybdenite recovery are also ...
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Adsorption of modified dextrins on molybdenite: AFM imaging…
Molybdenite particles used for adsorption isotherms and flotation were purchased from Fluka (purum powder). The Brunauer–Emmett–Tellet (BET) surface area was measured at 3.1 m 2 g −1.Using a Malvern Instrument Mastersizer, the apparent particle size distribution of the particulate sample was distributed between 0.4 and 30.2 μm with the …
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Polyethylene oxide assisted separation of molybdenite from …
In some mineral flotation, oily collectors are added to increase the difference in surface hydrophobicity between target minerals and gangue minerals, such as molybdenite flotation [9], so as to ...
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The Interaction between Ca2+ and Molybdenite Edges and …
directly depress molybdenite flotation even in the absence of fine gangue particles. Lucay et al. [16] studied the effect of gypsum on the floatability of molybd enite in saline solutions using a ...
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Contact angle of molybdenite in sulfate solution at pH 10
Similar results were obtained in the flotation of two copper ores; however, the grade of chalcopyrite and molybdenite was much lower as a result of increased recovery of unwanted or gangue ...
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SURFACE PROPERTIES AND FLOATABILITY OF …
Molybdenite is naturally floatable and can be separated from copper sulfide mineral using froth flotation. Properties of molybdenite such as mineralogy, microstructure, surface wettability, zeta ...
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Improved flotation of molybdenite from talc using a …
Talc is one of the most problematic gangue minerals for molybdenite flotation owing to its strong natural hydrophobicity. In this work, pullulan polysaccharide (PU) was evaluated as a potential ...
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Effects of solution pH and polyethylene oxide concentrations …
Molybdenite (MoS2), a major resource for Mo, is often associated with some gangue minerals, such as kaolinite and quartz. The flotation separation of fine-grained molybdenite from gangue minerals ...
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A process mineralogy approach to optimize molybdenite flotation …
Optical microscopic studies (Zeiss SM-LUX-POL reflective polarizing microscope) have been used in order to determine the degree of liberation 1 as well as the association of sulphide minerals and gangue in feed, concentrate and tailings of the molybdenite flotation circuit. From each sample of feed, concentrate and tailings, three standard ...
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Mineralogical characterisation of naturally floatable gangue …
Using methodology developed at the University of Cape Town to decouple the NFG from entrained gangue recovered in flotation, a series of concentrate samples have been analysed in this study using quantitative mineralogical analysis methods. ... The role of morphology and host rock lithology on the flotation behaviour of molybdenite at Kennecott ...
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Oxidation-reduction effects in the flotation of copper sulfide …
Copper-molybdenum porphyry ores often contain copper sulfide minerals, molybdenite, pyrite, iron oxides, and gangue minerals. Due to the differences in the flotation properties of sulfide minerals and associated gangues, flotation is the most common method for processing copper-molybdenum sulfide ores.
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The effect of sodium hydrosulfide on molybdenite flotation in …
The previous study did not consider the effect of seawater on the role of NaHS in molybdenite flotation. In fact, a number of copper-molybdenum flotation plants are located in areas where freshwater resources are scarce and seawater has to be used as the process water (Cisternas and Gálvez, 2018).In seawater, due to the presence of salts, the hydration layer …
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Selective Depression of Talc in Cuprite Sulfidation Flotation …
As a common gangue mineral with natural hydrophobicity, talc is normally found in nickel sulfide ores, molybdenite ores and copper oxide ores [1,2,3].In fact, when talc particles are crushed and ground as flotation feed, the basal surface accounts for about 90% of the total surface of talc particles, and the basal face is hydrophobic [4, 5], which does not have …
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Fluidized-bed flotation of coarse molybdenite particles: …
It is believed that the outcomes of this work could facilitate the optimization of fluidized-bed flotation in coarse gangue rejecting for sulfide ores. ... This study carried out fluidized-bed flotation of molybdenite ores under three particle size fractions and three bubble sizes, respectively. The effect of surface mineral exposure pattern ...
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Effect of Cu2+ and Fe3+ on the depression of molybdenite in flotation
The flotation separation of fine-grained molybdenite from gangue minerals is always difficult due to the low efficiency of capturing fine particle by bubbles and the heterogeneous agglomeration ...
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Recent progress on research of molybdenite flotation: A …
Effect of gangue minerals on molybdenite flotation. Limestone skarn ore (LSN) is reported to have a negative effect on molybdenite recovery in the Bingham Canyon mine. [14] Laboratory and plant scale tests demonstrated that molybdenite recovery decreased significantly when limestone skarn ore was blended with the quartzite ore (with high ...
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Selective flotation separation of molybdenite and talc by …
DOI: 10.1016/J.MINENG.2017.12.005 Corpus ID: 103586575; Selective flotation separation of molybdenite and talc by humic substances @article{Yuan2018SelectiveFS, title={Selective flotation separation of molybdenite and talc by humic substances}, author={Duowei Yuan and Lei Xie and Xingwei Shi and Longsheng Yi and Guofan Zhang and …
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Review of the Influence of Native and Modified Biopolymers …
During flotation, the structure and hydrophobic nature of carbonaceous materials such as graphitic carbon pose significant challenges in achieving selectivity (Sime et al. Citation 2022).In particular, the hydrophobic gangue can readily attach to air bubbles along with valuable minerals with their surfaces made hydrophobic through the addition of collectors, resulting in …
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The Interaction between Ca2+ and Molybdenite Edges …
minerals Article The Interaction between Ca2+ and Molybdenite Edges and Its Effect on Molybdenum Flotation He Wan 1,2,*, Wei Yang 1,*, Weicheng Cao 2, Tingshu He 1, Yanying Liu 2, Jianbo Yang 3, Lin Guo 3 and Yongjun Peng 4 1 College of Materials and Mineral Resources, Xi'an University of Architecture and Technology, Xi'an 710055, China; …
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Flotation separation of molybdenite from talc using a new …
Talc is the main gangue mineral of molybdenite, it has good natural hydrophobicity and a similar layered structure as molybdenite, so inhibitors are often used to separate them. ... Wang et al. (2016) reported that the combination of zinc sulfate and sodium carbonate can inhibit talc without affecting molybdenite flotation at pH 7.5 to 10.5.
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Flotation CirCuit Design For aDanaC Moly Corp
True flotation of non-sulphide gangue (NSG) only occurs due to attachment to molybdenite; the very low Mo grade of the ore results in very low NSG R max values. As a comparison, copper …
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Nanobubble-enhanced flotation of ultrafine molybdenite …
1. Introduction. Froth flotation, a separation and concentration process based on the difference in the physicochemical properties of minerals to realize the selective separation of valuable minerals from gangue minerals, is deemed the most efficient and common recovery technology for most mineral resources [1], [2], [3].With the gradual improvement of production …
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Froth Flotation of Chalcopyrite/Pyrite Ore: A Critical Review
However, there was no significant effect on molybdenite, which could confirm a selective separation of these minerals. The presence of Cu +2 was detrimental to the flotation of chalcopyrite and molybdenite. The authors indicated that copper ions drastically reduced the recoveries of copper and molybdenum and increased the inhibition of sodium ...
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A process mineralogy approach to study the efficiency of …
In the present study, the type and behavior of copper sulfide, molybdenite and associated gangue minerals, especially pyrite, have been identified through a process mineralogy approach toward ...
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The Life Cycle of Water Used in Flotation: a Review
Luo et al. found that as compared to other flotation parameters such as collector, grinding time, and pH, the pulp concentration most significantly influenced galena flotation …
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