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Flotation separation of copper–molybdenum sulfides using ...

Chitosan, a natural biodegradable polymer, was studied as a selective depressant in copper–molybdenum sulfide separation by flotation. Although chitosan depressed both molybdenite and chalcopyrite in single mineral flotation, selective flotation was achieved during the flotation of molybdenum-bearing copper sulfide concentrate at pH 6; the …

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Molybdenum processing | Britannica.com

Molybdenum processing, preparation of the ore for use in various products. Molybdenum (Mo) is a white platinum-like metal with a melting point of 2,610 °C (4,730 °F). In its pure state, it is tough and ductile and is characterized by moderate hardness, high thermal conductivity, high resistance to ...

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Dual effects of sodium sulfide on the ... - SpringerLink

Abstract. This study explores the flotation behavior of chalcopyrite in the presence of different concentrations of sodium sulfide (Na 2 S·9H 2 O) at pH 12 under controlled potential conditions. It was observed that the flotation of chalcopyrite is not depressed completely when the pulp potential is low, even at high concentrations of sodium sulfide, i.e., 10 −1 –10 −2 mol/L.

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molybdenite processing - mine-equipments.com

Recovery of rhenium from molybdenite calcine by a resin-in-pulp ... This paper introduces a resin-in-pulp (RIP) hydrometallurgical process, which is ... Up-gradation of MoO3 and separation of copper, iron, zinc from roasted molybdenum ore by a leaching process. ...

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The Effect of Sodium Silicate as pH Modifier and ...

In flotation of porphyry molybdenite ores or copper-molybdenite ores using oil collector, a molybdenite (MoS 2) ... frother (Aeroforth 65) were added into pulp, and finally molybdenite was floated with adsorbed onto bubbles. At this time, a reaction time per reagent was 3min and final ... separation efficiency of molybdenite was effective ...

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Mineral processing - Wikipedia

In the field of extractive metallurgy, mineral processing, also known as ore dressing, is the process of separating commercially valuable minerals from their ores Contents 1 History

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copper froth flotation process pulp density

Froth flotation is a process for selectively separating, Froth flotation cells to concentrate copper and nickel, transport between the pulp and the froth, . [Live Chat] Patent US3313412 - Recovery of molybdenite from copper,

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A Brief Review of Pulp Potentials in Sulfide Flotation ...

The concentrate grades are plotted in Fig. Sepalveda-Suarez and Castro (1996) also used a platinum electrode with Ag/AgCl reference electrode to monitor the effect of Anamol-D on copper –molybdenite separation. most likely it was Ag/AgCl.

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Up-gradation of MoO3 and separation of copper, iron, zinc ...

Up-gradation of MoO 3 and separation of copper, iron, zinc from roasted molybdenum ore by a ... (CaMoO 4), the main commercial source of molybdenum is molybdenite (MoS ... copper, iron and zinc, the pulp density influence follows the order: copper > zinc > iron. Especially in the case of copper the pulp density reached 20% and even though the ...

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Hydrosulphide Depression of Copper-sulphide Minerals ...

Hydrosulfide addition is commonly used to achieve separation of copper sulfides from molybdenite. Depression of chalcocite and chalcopyrite floated by ethylxanthate and o-isobutyl- n-ethoxycarbonylthionocarbamate collectors occurred in similar fashion by two mechanisms.

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COPPER Copper production - TU Delft

flotation of the ore pulp, which exploits the different surface properties of the sulfidic copper ore and the gangue [46]. ... Separation of special copper ores such as those containing molybdenite or with high zinc or lead content (Canada) is also possible by flotation methods. ...

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Treatment of Process Water From Molybdenum Flotation ...

Treatment of Process Water From Molybdenum Flotation - Download as PDF File (.pdf), Text File (.txt) or read online. ... The predominant process employed to produce molybdenite from copper concentrate is to depress ... The thiosulphate content in the overflow from the solid-liquid separation of the oxidised pulp was completely converted to ...

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Preconcentration of Molybdenum from a Low-grade Primary Mo ...

The flotation response of molybdenite as a function of pulp pH was studied at insitu pH, about 7.9 and, at two other higher levels, 9.3 and 10.0. The pulp pH was …

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US4231859A - Molybdenite flotation - Google Patents

Molybdenite (MoS 2 ) is recovered from copper sulfide flotation concentrates by froth flotation utilizing steam-air injection into the concentrate flotation pulp at a temperature of about 70° to 100° C. in the presence of activated carbon and soluble sulfide reagents.

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Separation of rhenium from electric-oxidation leaching ...

separation of rhenium from the electro-oxidation leachate of molybdenite and its mechanism were investigated. The results show that pH of the leachate significantly affects adsorption rate compared with other experimental parameters.

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Minerals Engineering International Online - Commodities ...

Z. Yin, W. Sun, Y. Hu, J. Zhai, G. Qingjun, Evaluation of the replacement of NaCN with depressant mixtures in the separation of copper–molybdenum sulphide ore by flotation, Separation and Purification Technology, Vol. 173, 2016

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1 Froth Flotation – Fundamental Principles

Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a mineral/water slurry.

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Copper-Molybdenum ores - Danafloat - Home

Copper-Molybdenum ores Molybdenite (MoS2) is the predominant economic molybdenum mineral. While naturally very hydrophobic and can effectively be floated with just frother, addition of a hydrocarbon oil extender enhances its recovery.

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Acidic Leaching with Chlorate as Oxidizing Agent to ...

Separation of molybdenite from copper bearing minerals ... pulp density remained constant. The scheme of the experimen-tal setup is given in Fig. 7. ... Acidic Leaching with Chlorate as Oxidizing Agent to Extract Mo and Re from Molybdenite Flotation Concentrate in a Copper Plant ...

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Electrolysis Oxidation of Chalcopyrite and …

Separation of these minerals is dif˚cult, and molybdenite contamination of the ... suggests that recovery of chalcopyrite and molybdenite is dif-ferent with speci˚c pulp potential7). From this knowledge, ... copper mineral, and molybdenite. In fact, with oxidation, chalcopyrite becomes more hydrophilic than molybdenite

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how does orp affect moly flotation - BINQ Mining

 · Abstract– Molybdenite flotation in the Sarcheshmeh Copper Complex was studied as a function … Natarajan and Iwasaki studied the effect of pulp potential by applying a … However there is no control applied for the grade of molybdenum which usually varies … measured by an ORP electrode as well as a potentiometer.

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Investigation on selective rhenium leaching from ...

It does not form its own minerals but leaching condition has a pulp density of 20%, exists in trace amounts associated with temperatures as high as 80 °C, agitation speed of molybdenite in porphyry copper …

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separation copper from molybdenite pulp

separation copper from molybdenite pulp stone crusher molybdenum crusher, a pe series jaw crusher in open pit mining,in the process vsi crusher, Read More Molybdenum Flotation Selectivity - …

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United States Patent (19) (11) 4,231,859 Huiatt et al. …

lybdenite separation from primary copper sulfide flota tion concentrates. Conventional processes are, how ever, generally complicated, expensive, and variable ... iron sulfides and molybdenite. An aqueous pulp of the concentrate, containing about 20 to 60 percent solids, is initially introduced to a suitable vessel. A pressurized

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