Using Diaminomethanal as an Entrainer for the Separation of Isopropanol + Water Mixture

Kataria, Rajat; Jain, Tarun; Singh, Neetu; Kushwaha, Jai Prakash; Sharma, Bandhana

doi:10.1007/s10953-020-00946-8

Cited by 5 publications

(1 citation statement)

References 20 publications

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“…1 In the production of IPA and treatment of related wastewater solutions, the separation of low-boiling-point azeotropes formed by IPA and water is complex, and energy consumption is high under the conditions of conventional distillation. 2 Some studies have been conducted to improve distillation processes, such as extractive, [3][4][5] azeotropic, 6 and reactive 7,8 distillation, to achieve the separation and recovery of IPA wastewater. Most organic solvents and entrainers selected in the distillation process are organic solvents or substances with toxicity, volatility, and flammability, which cause additional environmental hazards.…”

Section: Introductionmentioning

confidence: 99%

Experiment and microscopic analysis for the separation of isopropanol‐water using hydrophobic deep eutectic solvents

Ruan,

Wang,

et al. 2024

AIChE Journal

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In this study, a method for separating isopropanol from wastewater using hydrophobic deep eutectic solvents (DESs) synthesized from terpenes and capric acid was proposed. The distribution coefficient and selectivity value of isopropanol (IPA) in the solvents were determined by liquid–liquid extraction experiments, and the extraction performances of the solvents at different molar ratios and temperatures were studied. From the perspective of molecular dynamics simulations, the experimental results were verified by mechanism analysis, the contribution of hydrogen bond donors (HBDs) and hydrogen bond acceptors (HBAs) to the selective separation of isopropanol was explained. The interaction energies, radial distribution functions, normal density distribution, and mean square deviations between the atoms were used to analyze the interactions between the components of the DESs and IPA/water. It was observed that the DESs have a good extraction effect on IPA, which verifies the good application prospects of DESs in wastewater solutions containing alcohol compounds.

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