Most primary-molybdenite producers use a selective-flotation process in which molybdenite is floated from the ore while other sulfide and non-sulfide gangue …
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Humic acid (HA) has been studied as a potential selective depressant for molybdenite in the flotation separation of molybdenite and talc in this paper.
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Over the past several decades, many studies have been carried out to separate the hydrophobic gangue mineral talc from molybdenite by froth flotation and other techniques.
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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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The flotation separation of talc and molybdenite is challenging due to their excellent inherent floatability. In this study, we innovatively used oxidant and inhibitor to perform reverse flotation of molybdenite and yeast infusion was evaluated as a potential depressant in the reverse flotation separation of molybdenite from talc.
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It is difficult to separate molybdenite and chalcopyrite by froth flotation due to the good floatability of the two minerals. In this paper, the separation of copper–molybdenum sulfide minerals was…
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These differences were not specifically identified by the authors of Zanin et al. (2009) but are apparent from the ToF-SIMS statistical data presented with the slow molybdenite flotation behaviour being attributed to fine hydrophilic gangue particles or adsorbed ions interfering with the molybdenite surface and reducing the available ...
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The flotation separation of talc and molybdenite is challenging due to their excellent inherent floatability. In this study, we innovatively used oxidant and inhibitor to perform reverse flotation of molybdenite and yeast infusion was evaluated as a potential depressant in the reverse flotation separation of molybdenite from talc.
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Talc is one of the most problematic hydrophobic gangue minerals that occur in sulfide ores such as molybdenite and Pt-bearing nickel sulfide ores.
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In addition, effects of gangue minerals, particle size, and oil collectors and surfactants on molybdenite recovery are also discussed in this manuscript.
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Depressing copper sulfides using sodium hydrosulfide (NaHS) in the flotation of molybdenite is a common practice. However, the effect of NaHS on the f…
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A case study of flotation of chalcopyrite-molybdenite ore using a mixture of pyrogallic acid and o-isopropyl ethylthiocarbamate: Insights from ab initio calculations
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Request PDF | A process mineralogy approach to optimize molybdenite flotation in copper - molybdenum processing plants | The Sungun copper-molybdenum operation in Iran uses a typical copper ...
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Over the past several decades, many studies have been carried out to separate the hydrophobic gangue mineral talc from molybdenite by froth flotation and …
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In the present study, the type and behavior of copper sulfide, molybdenite and associated gangue minerals, especially pyrite, have been identified through a …
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Molybdenite flotation in the bulk copper/molybdenum flotation circuit at Kennecott Utah Copper was studied by means of a combination of plant metallurgical surveys, laboratory flotation tests ...
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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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Molybdenite flotation in the bulk copper/molybdenum flotation circuit at Kennecott Utah Copper was studied by means of a combination of plant metallurgical surveys, laboratory flotation tests, mineralogical analysis (QEM-Scan), surface analysis (ToF-SIMS) and contact angle measurements.
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Recent Progress on Research of Molybdenite Flotation: A Review Gaosong Yi1, Eloy Macha1, Jeff Van Dyke1, ... addition, effects of gangue minerals, particle size, and oil collectors and surfactants ...
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Highlights Dextrins adsorbing on molybdenite. Adsorption characterised by isotherms and AFM imaging. Effect of polymers on wettability determined with contact angle measurements and bubble-surface collisions. Flotation of molybdenite correlates with polymer morphology, and subsequent effect of polymer on thin film rupture time.
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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 …
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Evaluation of Collectors for Molybdenite Flotation. Most primary-molybdenite producers use a selective-flotation process in which molybdenite is floated from the ore while other sulfide and non-sulfide gangue minerals are depressed in the same step. The process was developed at the Climax mill.
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Effect of gangue minerals on molybdenite flotation Limestone skarn ore (LSN) is reported to have a negative effect on molybdenite recovery in the Bingham …
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The quality of recycled process water is an important issue in the flotation of Cu–Mo ores. Processing of Cu–Mo ores includes two steps: a bulk flotation where molybdenite is recovered together with Cu sulfides, and a subsequent selective flotation step where molybdenite is separated from depressed copper sulfides.
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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 depressant in …
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Therefore, this study conducted fluidized-bed flotation using a molybdenite ore with different locking degrees, under three particle size classes and three bubble sizes, respectively. Note that molybdenite ore is a typical sulfide ore bearing a low content of valuable mineral.
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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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In the flotation of copper sulphides and molybdenite in the first circuit, pyrite as a sulphide gangue mineral has to be depressed and lime is added to increase flotation pH to depress pyrite when fresh water is used.
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In 2004, the price of molybdenum increased 10-fold resulting in a renewed emphasis on production of this metal, including efforts to optimize its flotation recovery. Molybdenite recovery in the ...
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Gangue minerals like talc and kaolinite can depress the flotation of molybdenite because Mg and Ca ions dissolved from their surfaces can precipitate on molybdenite as hydrophilic colloids.
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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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The influence of diesel oil from different manufacturers on flotation of molybdenite in normal pulp temperature: temperature range from 10 to 30 ... which contributes to the enhancement of collecting ability for coarse molybdenite and intergrowths of molybdenite with gangue.
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In particular, in the presence of many different kinds of silicate gangue in minerals, sodium silicate performs better than sodium carbonate in inhibiting gangue formation by flotation. The results of this study showed that sodium silicate can replace sodium carbonate and inhibit talc flotation in combination with zinc sulfate; the …
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