Selective recovery of zinc from mining sulfuric liquor employing aqueous two-phase systems

Leite, Daniela da Silveira; Assis, Roberta C.; Domingues, Junielly Tomaz; Carvalho, Pablo Luis Gutierrez; Castro, Mateus Carvalho Monteiro de; Cruz, Gustavo Henrique da; Silva, Izabella Cristina Gonçalves; Rodrigues, Guilherme Dias

doi:10.1016/j.jwpe.2021.102138

Cited by 4 publications

(2 citation statements)

References 39 publications

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“…33 Albeit ATPS offers a proven ability to extract heavy metal ions from aqueous phases. 45,46 To the best of our knowledge, the extraction of Chromium(VI) and Rhodamine B using micellar ATPSs has not been explored. We put forward the ability of studied micellar ATPSs to extract RB and Cr 6+ .…”

Section: Introductionmentioning

confidence: 99%

“…Owing to the lower cost associated with micellar ATPS, and huge volumes of industrial effluent to be processed, micellar ATPS is suggested as the cost-effective and circular platform for wastewater processing . Albeit ATPS offers a proven ability to extract heavy metal ions from aqueous phases. , To the best of our knowledge, the extraction of Chromium(VI) and Rhodamine B using micellar ATPSs has not been explored. We put forward the ability of studied micellar ATPSs to extract RB and Cr 6+ .…”

Section: Introductionmentioning

confidence: 99%

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Liquid–Liquid Equilibrium Data of Various Micellar Aqueous Two-Phase Systems for the Extraction of Rhodamine B and Hexavalent Chromium

Boravelli,

Vir

2024

J. Chem. Eng. Data

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Micellar aqueous two-phase systems (ATPSs) find prominent applications in the extraction of hydrophobic solutes owing to their low interfacial tension. In this study, we investigated the liquid–liquid equilibrium (298.15 T/K and 101.325 P/kPa) and phase-forming abilities of organic (trisodium-citrate dihydrate and potassium sodium tartrate tetrahydrate) and inorganic (ammonium sulfate and ammonium phosphate dibasic) salts with an amphiphilic surfactant, Triton X-100. The experimental binodal curves for four micellar ATPSs were determined employing the cloud point method, and tie-line compositions were calculated using the gravimetric approach. The experimentally determined equilibrium data were thermodynamically correlated using effective excluded volume theory. For tie-line data accuracy, the Othmer–Tobias and Bancroft equations were used, and the corresponding correlation coefficients were reported. The phase separation ability of organic and inorganic salts was analyzed by using the Hofmeister series. Furthermore, we explored the effectiveness of micellar ATPSs in extracting hazardous pollutants from the textile industry, Rhodamine B (RB) and Chromium(VI) (Cr6+). Extraction experiments showed RB partitioning almost entirely (%E ∼ 99%) into a surfactant-rich phase, and ammonium sulfate-based ATPSs offered the highest extraction for the Cr6+ metal ion (% E = 81%). This study showcases the cost-effective way for the extraction of harmful hydrophobic industrial pollutants.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Equilibrium Data of Various Micellar Aqueous Two-Phase Systems for the Extraction of Rhodamine B and Hexavalent Chromium

Boravelli,

Vir

2024

J. Chem. Eng. Data

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A review of recent developments in sugars and polyol based soluting out separation processes

Dhamole

Joshi

Bhat

2023

Separation and Purification Technology

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Recent advances in drug delivery applications of aqueous two-phase systems

Baghbanbashi,

Shiran,

Kakkar

et al. 2024

PNAS Nexus

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Aqueous two-phase systems (ATPSs) are liquid-liquid equilibria between two aqueous phases that usually contain over 70% water content each, which results in a non-toxic organic solvent-free environment for biological compounds and biomolecules. ATPSs have attracted significant interest in applications for formulating carriers (microparticles, nanoparticles, hydrogels, and polymersomes) which can be prepared using the spontaneous phase separation of ATPS as a driving force, and loaded with a wide range of bioactive materials, including small molecule drugs, proteins, and cells, for delivery applications. This review provides a detailed analysis of various ATPSs, including strategies employed for particle formation, polymerization of droplets in ATPS, phase-guided block copolymer assemblies, and stimulus-responsive carriers. Processes for loading various bioactive payloads are discussed, and applications of these systems for drug delivery are summarized and discussed.

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Selective recovery of zinc from mining sulfuric liquor employing aqueous two-phase systems

Cited by 4 publications

References 39 publications

Liquid–Liquid Equilibrium Data of Various Micellar Aqueous Two-Phase Systems for the Extraction of Rhodamine B and Hexavalent Chromium

Liquid–Liquid Equilibrium Data of Various Micellar Aqueous Two-Phase Systems for the Extraction of Rhodamine B and Hexavalent Chromium

A review of recent developments in sugars and polyol based soluting out separation processes

Recent advances in drug delivery applications of aqueous two-phase systems

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