Improving the Extraction of Tetracycline from Aqueous Solution by the Use of Acetone as an Adjuvant in ATPS Containing Poly(ethylene glycol) and Organic Salts and the Study of Its Phase Behavior

Torabi, Seyed Ali; Samimi Choukami, Fatemeh; Nikkhah, Iman; Khayati, Gholam

doi:10.1021/acs.iecr.3c00154

Cited by 3 publications

(2 citation statements)

References 49 publications

(85 reference statements)

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“…The least soluble component in the consolute is named as salting-out agent and causes phase splitting by competing for the consolute molecules . The phase separation of ATPS has been increasingly studied given its promising potential for industrial application, particularly to what pertains their biocompatibility and nontoxicity (suitable for protein purification and cell culture − ), selectivity and extraction efficiency (advantageous for bioprocessing and biotechnology , ), and low environmental impact (crucial in waste treatment and recovery − ).…”

Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Equilibria Determination and Modeling of ATPS Based on PEG4000 and PVP29000 at 298.15 K and 0.1 MPa

Velho,

Madaleno,

Macedo

2024

J. Chem. Eng. Data

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Additionally to the known nontoxicity and eco-friendliness of aqueous two-phase systems (ATPS), polymeric ATPS, which are composed of at least one polymer [e.g., poly(ethylene glycol) or poly(vinylpyrrolidone)], provide extractive media with enhanced potential for drug delivery and biomolecule extraction. Nevertheless, the lack of liquid−liquid equilibria (LLE) data concerning these systems still limits their large-scale application and hampers proper thermodynamic modeling, delaying advancements in the design of novel materials and processes based on polymers. In this work, the LLE, i.e., solubility curves and tieline compositions, of the ATPS {PEG4000 (1) + NaFormate (2) + Water (3)} and {PVP29000 (1) + NaFormate or Na 2 Tartrate or K 2 Tartrate (2) + Water (3)} were determined at 298.15 K and 0.1 MPa. The estimation of tie-line composition using third-degree polynomials of liquid density (ρ) and electrical conductivity (κ) allowed to better understand the influence of composition on these thermophysical properties, and the tie-line data were successfully correlated using the models of Othmer−Tobias and Bancroft− Hubard, achieving determination coefficients (R 2 ) larger than 0.9575 and 0.9676, respectively. Moreover, the obtained compositions were effectively described using the UNIversal QUAsi-Chemical (UNIQUAC) model, with standard deviations (σ) lower than 6.84 × 10 −3 .

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Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Equilibria Determination and Modeling of ATPS Based on PEG4000 and PVP29000 at 298.15 K and 0.1 MPa

Velho,

Madaleno,

Macedo

2024

J. Chem. Eng. Data

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“…An aqueous two-phase system (ATPS) consists of two visually distinct liquid phases that are usually constructed from different pairs of aqueous solutions (polymer–polymer, polymer-salt, and salt–salt) at specific concentrations . Although both solutes are soluble in water, they can be separated into two coexisting phases when the salt concentration reaches a threshold level .…”

Section: Introductionmentioning

confidence: 99%

Green Amino Acid Ionic Liquids-Based Aqueous Biphasic Systems for Efficient Extraction of Gold(I) from Alkaline Solution

Ma,

Li,

Zhou

et al. 2023

Ind. Eng. Chem. Res.

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Ionic liquids consisting of choline cations and amino acid anions comprise a category of biodegradable and ecological extractants. Herein, four novel ionic liquids were synthesized by neutralizing choline hydroxide with various amino acids (i.e., L-methionine, glycine, L-alanine, L-proline). These choline amino acid ionic liquids (Ch-AA ILs) are applied to construct green aqueous two-phase systems (ATPSs) for gold(I) separation from an aurocyanide solution. Various parameters affecting the gold(I) extraction were optimized. Gold(I) was efficiently enriched in the IL-rich phase, exhibiting an extraction percentage of more than 99%. The mechanism of gold(I) distribution in ATPS was studied by Fourier transform infrared (FTIR) spectroscopy, mass spectrometry (MS), X-ray photoelectron spectroscopy (XPS), and density functional theory (DFT) calculations. The results show that anionic Au(CN) 2− produces an electrostatic attraction with choline cation and a hydrogen bond with the −NH 2 group in the amino acid anion, thus maintaining its stability in the Ch-AA IL-rich phase. Finally, gold(I) in the ionic-liquid-rich phase was successfully deposited on the cathodic copper plate, thus recovering gold and regenerating the ionic liquid. The green aqueous two-phase system based on choline amino acid ILs has the potential to be an environmentally friendly platform for gold(I) recovery from aurocyanide wastewater.

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Viscosity, Interfacial Tension, and Density of 2-Propanol and Acetone up to 423 K by Surface Light Scattering and Conventional Methods

Kerscher,

Braun,

Jander

et al. 2023

Int J Thermophys

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Despite the extensive use of 2-propanol and acetone in a wide range of applications in the chemical industry and in energy engineering, there is a lack of experimental data in the literature for their thermophysical properties including viscosity, interfacial tension, and density, especially at elevated temperatures beyond the respective normal boiling points. In the present study, the liquid viscosity and interfacial tension were determined simultaneously by surface light scattering (SLS) with average expanded uncertainties of (1.7 and 0.9)% at or close to saturation conditions for temperatures between (273 and 403) K. Furthermore, capillary viscometry (CV) and vibrating-tube densimetry were employed to measure the liquid viscosity at ambient pressure of 0.1 MPa from (283 to 353) K and the liquid density close to saturation conditions between (278 and 423) K. The obtained density data were used for the evaluation of both SLS and CV experiments. In comparison with literature data, the present density data show agreement for 2-propanol over the entire temperature range. In contrast, deviations of up to 0.5% at the maximum temperature can be found for acetone. For the viscosity and interfacial tension at low temperatures, agreement of the measurement results among each other and with literature data is mostly found. At elevated temperatures, the increasing deviations of the present experimental viscosity and interfacial tension data from recommended correlations indicate a lack of reliable data needed for their development. Overall, this work contributes to an improvement of the database for viscosity, interfacial tension, and density of 2-propanol and acetone over a wide temperature range up to 423 K.

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Improving the Extraction of Tetracycline from Aqueous Solution by the Use of Acetone as an Adjuvant in ATPS Containing Poly(ethylene glycol) and Organic Salts and the Study of Its Phase Behavior

Cited by 3 publications

References 49 publications

Liquid–Liquid Equilibria Determination and Modeling of ATPS Based on PEG4000 and PVP29000 at 298.15 K and 0.1 MPa

Liquid–Liquid Equilibria Determination and Modeling of ATPS Based on PEG4000 and PVP29000 at 298.15 K and 0.1 MPa

Green Amino Acid Ionic Liquids-Based Aqueous Biphasic Systems for Efficient Extraction of Gold(I) from Alkaline Solution

Viscosity, Interfacial Tension, and Density of 2-Propanol and Acetone up to 423 K by Surface Light Scattering and Conventional Methods

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