The Interaction between Ca2+ and Molybdenite Edges and Its Effect on Molybdenum Flotation
- Release time:2024-08-09
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Affiliation of Author(s):
资源工程学院
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Journal:
MINERALS
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Abstract:
In this paper, the influence of Ca2+ on the flotation of a skarn type molybdenum ore and pure molybdenite mineral at pH 8 was studied using diesel as the collector. It was found that Ca2+ had little effect on molybdenum flotation at low concentrations. By further increasing Ca2+ concentration, the floatability of molybdenite-especially from the fine size fractions-was depressed even without the presence of fine gangue minerals. The mechanism responsible for the deleterious effect of Ca2+ on molybdenite flotation was studied by a range of techniques including zeta potential measurements, Scanning Electron Microscopy, and Energy Dispersive X-ray Spectrometer (SEM-EDS) analyses and molybdenum phase analyses. It was found that Ca2+ interacted with molybdenite edges producing CaMoO4 precipitates which were responsible for the depression of molybdenite flotation of Ca2+ by preventing the adsorption of diesel.
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Note:
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Co-author:
曹维成,刘雁鹰,杨剑波,郭林,彭勇军
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First Author:
hetingshu,yangwei,wanhe
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Indexed by:
Journal paper
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Volume:
7/8/141
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ISSN No.:
2075-163X
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Translation or Not:
no
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Date of Publication:
2017-08-25
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