Boron extraction from aqueous medium using novel hydrophobic deep eutectic solvents

Almustafa, Ghaiath; Sulaiman, R.; Kumar, Mahendra; Adeyemi, Idowu; Arafat, Hassan A.; AlNashef, Inas M.

doi:10.1016/j.cej.2020.125173

Cited by 63 publications

(24 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The selection of the HBAs (menthol and Tetraoctylammonium bromide (TOABr)) and the HBDs (Octanoic acid (OctaAc), Decanoic acid (DecAc), and Lauric acid (LaAc)) for the VFA recovery application was based on the use of renewable, biodegradable components with the ability to form a liquid DES at ambient temperature and extract the VFAs from an aqueous phase with minimized cross-contamination [32]. Hence, the different types of hydrophobic acids, menthol, and TOABr were selected as they have been previously reported in the literature for their ability to form HDESs and for their renewable and biodegradable nature [30].…”

Section: Solvent Preparation and Selectionmentioning

confidence: 99%

See 1 more Smart Citation

Green Extraction of Volatile Fatty Acids from Fermented Wastewater Using Hydrophobic Deep Eutectic Solvents

et al. 2021

Self Cite

View full text Add to dashboard Cite

Volatile fatty acids (VFAs) are carboxylic acids mainly produced via the fermentation of organic waste streams. Being industrial platform chemicals, sustainable, green and economical recovery of VFAs is necessary. Herein, hydrophobic deep eutectic solvents (HDES), “a new generation of water-immiscible designer solvents”, were assessed for the recovery of VFAs via liquid–liquid extraction. The eutectic mixture of menthol-lauric acid exhibited the highest stability and hydrophobicity. The binary solubility of the pairs {VFA in water} and {VFA in HDES}—and the saturation of the HDES with water were measured. Furthermore, the influences of key parameters on the extraction efficiency were investigated. On multi-stage extraction, an efficiency of 88% was achieved in 4 stages, and the HDES was successfully regenerated using vacuum evaporation. The HDES performance was also compared to other reported relevant solvents. It was concluded that menthol-lauric acid HDES is a promising candidate for the green extraction of VFAs from fermented wastewater.

show abstract

Section: Solvent Preparation and Selectionmentioning

confidence: 99%

“…Additionally, menthol-based DESs [33] and acid-based DESs [34] are known for their low viscosities in comparison to ionic-based DESs (e.g., quaternary ammonium based DESs) [23]. This is important since low viscosity solvents facilitate mass transport between the phases [32].…”

Section: Solvent Preparation and Selectionmentioning

confidence: 99%

Green Extraction of Volatile Fatty Acids from Fermented Wastewater Using Hydrophobic Deep Eutectic Solvents

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…DES may be better alternatives to IL because they can be formed by mixing inexpensive, biodegradable, and natural chemical substances [ 5 , 6 ]. Recently, the use of hydrophobic DES for extracting pollutants or target compounds from aqueous media has attracted intense research attention [ 7 , 8 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of the Molecular Structure of Constituents and Liquid Phase Non-Ideality on the Viscosity of Deep Eutectic Solvents

2021

View full text Add to dashboard Cite

Hydrophobic deep eutectic solvents (DES) have recently been used as green alternatives to conventional solvents in several applications. In addition to their tunable melting temperature, the viscosity of DES can be optimized by selecting the constituents and molar ratio. This study examined the viscosity of 14 eutectic systems formed by natural substances over a wide range of temperatures and compositions. The eutectic systems in this study were classified as ideal or non-ideal based on their solid–liquid equilibria (SLE) data found in the literature. The eutectic systems containing constituents with cyclohexyl rings were considerably more viscous than those containing linear or phenyl constituents. Moreover, the viscosity of non-ideal eutectic systems was higher than that of ideal eutectic systems because of the strong intermolecular interactions in the liquid solution. At temperatures considerably lower than the melting temperature of the pure constituents, non-ideal and ideal eutectic systems with cyclohexyl constituents exhibited considerably high viscosity, justifying the kinetic limitations in crystallization observed in these systems. Overall, understanding the correlation between the molecular structure of constituents, SLE, and the viscosity of the eutectic systems will help in designing new, low-viscosity DES.

show abstract

“…The ease of preparation, low cost, biodegradability, and nontoxicity "based on the wise selection of the constituents" of the DESs allowed these solvents to be investigated in many applications. 23,24 Since their discovery, DESs have been used in many applications such as electrochemistry, 25 catalysis, 26 material preparation, 27 nanotechnology, 28 separation, 29,30 and analytical chemistry. 31 Moreover, the use of DESs as extraction solvents has been extensively studied for fuel purification processes such as desulfurization, 32 denitrification, 33 or dearomatization.…”

Section: Introductionmentioning

confidence: 99%

“…Since their discovery, DESs have been used in many applications such as electrochemistry, catalysis, material preparation, nanotechnology, separation, , and analytical chemistry . Moreover, the use of DESs as extraction solvents has been extensively studied for fuel purification processes such as desulfurization, denitrification, or dearomatization .…”

Section: Introductionmentioning

confidence: 99%

Extraction of Thiophene, Pyridine, and Toluene from n-Decane as a Diesel Model Using Betaine-Based Natural Deep Eutectic Solvents

et al. 2020

View full text Add to dashboard Cite

In an attempt to develop an alternative process that meets the criteria of "green" and economically sound technology in fuel purification, simultaneous extractive desulfurization, denitrification, and dearomatization using natural deep eutectic solvents (NADESs) were investigated. A NADES composed of betaine (Bet) as a hydrogen bond acceptor (HBA) and levulinic acid (LevA) as a hydrogen bond donor (HBD) was investigated for its extraction capacity of thiophene, pyridine, and toluene from n-decane via liquid−liquid extraction. First, the HBA/HBD molar ratio was optimized based on the highest overall extraction efficiency, which was achieved for Bet/ LevA (1:7). Furthermore, the selected NADES was characterized by measuring its density, dynamic viscosity, and water content. Then, the solubility of each fuel impurity in the NADES was measured. Moreover, the liquid−liquid equilibrium (LLE) data of the pseudo-ternary systems {n-decane (1) + thiophene/pyridine/ toluene (2) + Bet/LevA (1:7) (3)} were determined at 298.15 K and 1.01 bar. The assumption of a pseudo-ternary system, which means that the NADES stays intact in one phase, was validated experimentally. The solute distribution ratios, selectivities, and the extraction efficiencies of each impurity at a 1:1 solvent-to-feed mass ratio were calculated from the experimental LLE data and compared to a benchmark solvent (i.e. sulfolane) and other ionic liquids and DESs reported in the literature. The LLE data were also correlated using the nonrandom two-liquid thermodynamic model. The regressed LLE data showed good agreement with the experimental data as the root-mean-square deviation was found to be ≤0.29%. Finally, it is clear that Bet/LevA (1:7) can be considered as a potential natural solvent for combined desulfurization, denitrification, and dearomatization processes.

show abstract

Boron extraction from aqueous medium using novel hydrophobic deep eutectic solvents

Cited by 63 publications

References 39 publications

Green Extraction of Volatile Fatty Acids from Fermented Wastewater Using Hydrophobic Deep Eutectic Solvents

Green Extraction of Volatile Fatty Acids from Fermented Wastewater Using Hydrophobic Deep Eutectic Solvents

Influence of the Molecular Structure of Constituents and Liquid Phase Non-Ideality on the Viscosity of Deep Eutectic Solvents

Extraction of Thiophene, Pyridine, and Toluene from n-Decane as a Diesel Model Using Betaine-Based Natural Deep Eutectic Solvents

Contact Info

Product

Resources

About