Extraction and concentration of cobalt from acidic leach solutions containing Co–Ni by emulsion liquid membrane using TOA as extractant

Kumbasar, Recep Ali

doi:10.1016/j.jiec.2010.01.045

Cited by 46 publications

(6 citation statements)

References 34 publications

(30 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Up to now, the various techniques, such as adsorption [2][3][4][5][6][7], facilitated transport through bulk liquid membrane [8], supported liquid membrane [9,10], emulsion liquid membrane [11,12] and liquid-liquid extraction (LLE) [13,14] have been used for recovery or removal of Co(II) from aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Preparation of new polysulfone capsules containing Cyanex 272 and their properties for Co(II) removal from aqueous solution

Kazak

Tor

Akın

et al. 2015

Journal of Environmental Chemical Engineering

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Preparation of new polysulfone capsules containing Cyanex 272 and their properties for Co(II) removal from aqueous solution

Kazak

Tor

Akın

et al. 2015

Journal of Environmental Chemical Engineering

View full text Add to dashboard Cite

“…Further increase in the mixing speed resulted in a break of liquid surfactant membranes leading to an outflow of extracted lead into the external phase. This is because of a higher mixer speed which beyond limits generally results in higher water transport into the inner strip phase causing the membrane to swell [26], [27]. Therefore, 250 rpm was chosen as the optimum mixing speed for extraction of Cu (II).…”

Section: Effect Of Changes Of Stirring Speed On the Copper Removal Efmentioning

confidence: 99%

Removal of-Copper Ions-from Aqueous Solution Using Liquid-Surfactant-Membrane Technique

Salman¹,

Mohammed²

2019

IJCPE

View full text Add to dashboard Cite

Extraction of copper (Cu) from aqueous solution utilizing Liquid Membrane technology (LM) is more effective than precipitation method that forms sludge and must be disposed of in landfills. In this work, we have formulated a liquid surfactant membrane (LSM) that uses kerosene oil as the main diluent of LSM to remove copper ions from the aqueous waste solution through di- (2-ethylhexyl) phosphoric acid - D2EHPA- as a carrier. This technique displays several advantages including one-stage extraction and stripping process, simple operation, low energy requirement, and. In this study, the LSM process was used to transport Cu (II) ions from the feed phase to the stripping phase, which was prepared, using H2SO4. For LSM process, various parameters have been studied such as carrier concentration; treat ratio (TR), agitating speed and initial feed concentration. After finding the optimum parameters, it was possible to extract Cu up to 95% from the aqueous feed phase in a single stage extraction.

show abstract

“…Separation of them from each other is accepted as an important and difficult hydrometallurgical problem for scienctists and hydrometallurgists [70,88,89] . For this reason, a comprehensive study was investigated to determine Co(II) selectivity of present process over Ni(II) under optimum extraction parameters.…”

Section: Sx Process Selectivity For Co(ii) Over the Other Metal İonsmentioning

confidence: 99%

A Novel Viewpoint of Imidazolium Salts for Selective Extraction of Cobalt in the Presence of Nickel from Acidic Thiocyanate Solutions by Ionic-Liquid-Based Solvent-Extraction Technique

Eyüpoğlu

Polat

Kunduracıoğlu

et al. 2015

Journal of Dispersion Science and Technology

View full text Add to dashboard Cite

In this study, the selective extraction and stripping conditions of Co(II) from acidic thiocyanate solution containing Co(II) and Ni(II) by ionic liquid based solvent extraction technique (ILBSX) using symetric and asymetric imidazolium bromide salts substituting butyl and isobutyl groups were experimentally optimized. The molecular structure effect of IMs have been determined as main factor to extract Co(II). The executive parameters on stripping and extraction processes such as IMs concentration, pH, thiocyanate concentration, stripping reagent type and concentration and etc. were experimentaly investigated. Molecular changes in the adduct consisting between IMs and Co-SCN, was illuminated by comparison of ATR-FTIR spectrums of pure and Co-SCN loaded IMs.Stochiometric rates of the adduct was verified with slope analysis. In the light of these examinations, Co(SCN) 3 -has been determined as prominent Co-SCN species in aqueous media. Symetric IMs were identified as more effective than asymetric ones on selective separation of Co(II) from Ni(II). Under optimum conditions, 99.20% of Co(II) was extracted and 93.33% of Co(II) was recovered with higher separation factors especially in diluted solution, whereas, Ni(II) extractions were negligible. We have concluded that the separation power of this study is high in Co(II)/Ni(II) containing dilute solutions and it can be used in preconcentration purposes effectively. Downloaded by [University of Connecticut] at 05

show abstract

Extraction and concentration of cobalt from acidic leach solutions containing Co–Ni by emulsion liquid membrane using TOA as extractant

Cited by 46 publications

References 34 publications

Preparation of new polysulfone capsules containing Cyanex 272 and their properties for Co(II) removal from aqueous solution

Preparation of new polysulfone capsules containing Cyanex 272 and their properties for Co(II) removal from aqueous solution

Removal of-Copper Ions-from Aqueous Solution Using Liquid-Surfactant-Membrane Technique

A Novel Viewpoint of Imidazolium Salts for Selective Extraction of Cobalt in the Presence of Nickel from Acidic Thiocyanate Solutions by Ionic-Liquid-Based Solvent-Extraction Technique

Contact Info

Product

Resources

About