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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 Review of the flotation of molybdenite. Part I: Surface ,Particle size is a very important factor affecting flotation properties of molybdenite. In porphyry copper–molybdenite ores the flotation conditions (grinding, Recent progress on research of molybdenite flotation: A ,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
The Anaconda Corporation reported that the combination of lignosulfonate and lime (CaO) could selectively depress the molybdenite flotation while allowing the A process mineralogy approach to study the efficiency of ,Molybdenite is a sulfide mineral and is often found in coppermolybdenum porphyry deposits, which is processed as a byproduct of copper during the flotation The effect of sodium hydrosulfide on molybdenite ,1. Introduction. Molybdenite, the principal mineral containing molybdenum, is closely associated with copper sulfides (Hirajima et al., 2014).The recovery of
a selective molybdenite floatation circuit followed by a bulk flotation circuit.[26] Liu et al.[23] modified the flowsheet in Fig. 1(b) by adding a nonthiol collector in the first molybdenite(PDF) Study of the natural floatability of ,The flotation separation of finegrained molybdenite from gangue minerals is always difficult due to the low efficiency of capturing fine particle by bubbles and the heterogeneous agglomerationMolybdenum Processing IMOA,The milled ore/gangue powder is mixed with a liquid and aerated in the flotation step. The less dense ore rises in the froth to be collected, while the gangue sinks to be discarded. Flotation separates the metallic minerals
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 alsoFrontiers The Behavior of Gangue During the ,Similar to what has been shown in this present work on the depression of gangue, an investigation into the role of Ca 2+ ions on the surface properties of molybdenite in copper porphyries by Li et al. () showed that the Minerals Special Issue : Fine Particle Flotation: ,All the experimental data validate the hypothesis that kaolinite covers molybdenite, reducing its flotation recovery. The depressing effect of kaolinite on molybdenite flotation in seawater is enhanced by the magnesium and calcium hydroxo complexes at pH > 9, which induce heterocoagulation between kaolinite and
1. Introduction. Molybdenite, the principal mineral containing molybdenum, is closely associated with copper sulfides (Hirajima et al., 2014).The recovery of molybdenite from copper ores is usually achieved by bulk flotation to obtain a coppermolybdenum concentrate, followed by molybdenite flotation against copper sulfides in the presence of Minerals Free FullText Flotation of ,This increase in frothing may contribute to unselective flotation of gangue minerals. Also, the addition of OM increased water recovery in the concentrates by approximately 10%, which results in a Review of the flotation of molybdenite. Part I: Surface ,However, it is always difficult for the flotation separation of finegrained molybdenite from gangue mineral, resulting from the low efficiency of capturing fine particle by bubbles and the
a selective molybdenite floatation circuit followed by a bulk flotation circuit.[26] Liu et al.[23] modified the flowsheet in Fig. 1(b) by adding a nonthiol collector in the first molybdenite(PDF) Recovery of molybdenum and copper ,A copper–molybdenum isoflotability flotation process has been developed to efficiently improve the recovery of molybdenite from Duobaoshan porphyry Cu–Mo ores. The effects of flotationA Review of Recent Advances in Depression Techniques ,Singlemineral flotation of bare molybdenite and in presence of 5 mg/L CMC ((a) HSHB and (b) LSLB) at three studied electrolyte conditions: 10 2 M KCl, 2. 76 × 10 2 M KCl, and SPW, all at pH 9
molybdenite has been achieved with sulfide bulk flotation followed by selective molybdenite flotation by Na 2 S/NaSH addition, because Na 2 S/NaSH acts as a depressant for copper sulfide in the appropriate pulp potential [7]. It was found that changes in pulp potential as an effective factor resulted in dual effects of Na 2Recent progress on research of molybdenite flotation: A ,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 alsoA novel pHresponsive flocculant for efficient separation ,Additionally, it also can cause the nonselective agglomeration of fine valuable minerals and gangue minerals, render serious entrain of bubbles, worsen the flotation selectivity, and reduce concentrate grade (Peleka et al., ). Therefore, the recovery of fine particles by flotation has been a challenging problem to the world mineral industry.
The origin and chemistry, organic depressantgangue minerals interaction mechanism, and the use of organic depressants in the most common chalcopyriteflotation instances, including chalcopyrite separation from galena, molybdenite, sphalerite, pyrite, pyrrhotite, talc, serpentine and carbonaceous materials, are discussed.Minerals Special Issue : Fine Particle Flotation: ,All the experimental data validate the hypothesis that kaolinite covers molybdenite, reducing its flotation recovery. The depressing effect of kaolinite on molybdenite flotation in seawater is enhanced by the magnesium and calcium hydroxo complexes at pH > 9, which induce heterocoagulation between kaolinite and Review of the flotation of molybdenite. Part I: Surface ,However, it is always difficult for the flotation separation of finegrained molybdenite from gangue mineral, resulting from the low efficiency of capturing fine particle by bubbles and the
The flotation separation of finegrained molybdenite from gangue minerals is always difficult due to the low efficiency of capturing fine particle by bubbles and the heterogeneous agglomerationUse of dispersants in flotation of molybdenite in seawater,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 gangueThe effect of sodium hydrosulfide on molybdenite ,The flotation tests on mineral mixtures confirmed OCMC could efficiently depress the molybdenite flotation without dramatically reducing chalcopyrite recovery and selective separation of
Batch flotation results showed that the mixed collector at a mass ratio of 95:5 of main collector to auxiliary collector at pH 11.0 improved molybdenite flotation, that is, the Mo recovery wasFlotation of molybdenite AMERICAN CYANAMID CO,In the past it has been considered very difficult to obtain molybdenite concentrates of sufficiently high grade by the use of heretofore known flotation agents and methods. In some instances the molybdenite containing ores also contain and are closely associated with a gangue material of the mica class from which it is very difficult to,
