Selective Recovery of Molybdenum over Rhenium from Molybdenite Flue Dust Leaching Solution Using PC88A Extractant

Entezari-Zarandi, Ali; Azizi, Dariush; Nikolaychuk, Pavel Anatolyevich; Larachi, Faı̈çal; Pasquier, Louis-César

doi:10.3390/met10111423

Cited by 15 publications

(3 citation statements)

References 30 publications

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“…4, adding PC 88A had less impact on cobalt extraction than raising the solution pH from 2 to 5. Cobalt exists as a cation species in the solution phase, responsible for the increased cobalt extraction at a higher solution pH [39], which is easier to extract by acidic organophosphorus extractant PC-88A [40].…”

Section: Effect Of Pc 88a Concentration On Cobalt Extractionmentioning

confidence: 99%

A Preliminary Study of Cobalt Solvent Extraction from Nickel Sulphate Solution using Organic Extractant-PC-88A

Subagja

Rohman

Milandia

et al. 2023

metal.

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In present study, a solvent extraction experiment has been done to separate cobalt from the nickel sulfate solution by using 2-ethythexyl phosponic acid mono-2-ethylhexyl ester (PC-88A) as extractant. The experiment was carried out on a laboratory scale by using a separating funnel to extract cobalt from the nickel sulfate solution with PC88A. The mixed solution was shake in separating funnel for a specified period of time, and after the solvent extraction experiment was finished the organic phase PC88 was separated from the nickel sulfate solution by decantation. The nickel and cobalt content in the aqueous nickel sulfate solution were then analyzed using Atomic absorption spectrophotometry (AAS). In this experiment, the variable for experiments were covering solution pH from 2 to 6, shaking time from 30 minutes to 120 minutes, shaking speed from 20 revolutions per minute (rpm) to 80 rpm, and the volumeratio of aqueous to organic phase (A:O ratio) was from 1:1 to 1:4. The effects that experimental variables to the cobalt extraction were observed in this experiment. The result of experiment at room temperature, solution pH 5, shaking speed 60 rpm, shaking time 90 minutes, A:O ratio 1:4 and concentration of PC- 88A 40% show 97.21% of cobalt can be extracted by PC-88A from nickel sulfate solution, thererfore it was necessary to conduct two stage extraction process to extract 100% of the cobalt from the nickel sulfate solution.

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Section: Effect Of Pc 88a Concentration On Cobalt Extractionmentioning

confidence: 99%

A Preliminary Study of Cobalt Solvent Extraction from Nickel Sulphate Solution using Organic Extractant-PC-88A

Subagja

Rohman

Milandia

et al. 2023

metal.

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“…Seventeen articles have been published in this Special Issue of Metals, encompassing the fields of mineral processing and extractive metallurgy [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. These articles cover a wide range of topics in the field and provide some ideas for active researchers who are working on the production of valuable metals from primary and secondary resources.…”

Section: Contributionsmentioning

confidence: 99%

Recovery and Recycling of Valuable Metals

Azizi

2022

Metals

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“…Production of nanoporous tungsten is also of great practical interest. Processing of tungsten-rhenium alloys is important to prove the possibility of extracting more expensive rhenium [30][31][32]. The method of selective dissolution, in addition to the synthesis of a bimodal structure at the surface of tungsten, provides the extraction of rhenium in the form of chlorrenic acid or potassium chlorrenate.…”

Section: Introductionmentioning

confidence: 99%

A Porous Tungsten Substrate for Catalytic Reduction of Hydrogen by Dealloying of a Tungsten–Rhenium Alloy in an Aqueous Solution of Hydrochloric Acid

Chernyshev

Никитина

2022

Applied Sciences

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Selective dissolution of a tungsten (85 wt.%)–rhenium (15 wt.%) alloy with rhenium in hydrochloric acid at the temperature of 298 K and anodic polarization modes was carried out to develop a porous catalytic substrate and to recycle rare metals. The parameters of the effective selective anodic dissolution of the tungsten–rhenium alloy, including the differences in applied potentials and electrolyte composition, were found. It was established that samples of the tungsten–rhenium alloy possess the smallest average pore size after being exposed for 6000 s. The obtained porous tungsten samples were characterized by X-ray diffraction and scanning electron spectroscopy. A thermodynamic description of the processes occurring during the anodic selective dissolution of a binary alloy was proposed. In the course of the work, the selectivity coefficient was determined using an X-ray fluorescence wave-dispersion spectrometer XRF-1800. The existence of a bimodal structure on the tungsten surface after dealloying was proved.

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Selective Recovery of Molybdenum over Rhenium from Molybdenite Flue Dust Leaching Solution Using PC88A Extractant

Abstract: Selective solvent extraction of molybdenum over rhenium from molybdenite (MoS2) flue dust leaching solution was studied [...]

Cited by 15 publications

References 30 publications

A Preliminary Study of Cobalt Solvent Extraction from Nickel Sulphate Solution using Organic Extractant-PC-88A

A Preliminary Study of Cobalt Solvent Extraction from Nickel Sulphate Solution using Organic Extractant-PC-88A

Recovery and Recycling of Valuable Metals

A Porous Tungsten Substrate for Catalytic Reduction of Hydrogen by Dealloying of a Tungsten–Rhenium Alloy in an Aqueous Solution of Hydrochloric Acid

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