Using dialkyl amideviaforming hydrophobic deep eutectic solvents to separate citric acid from fermentation broth

Abstract

The separation of citric acids was realized by utilizing hydrophobic deep eutectic solvents (DESs), which were formed by using N,N-dibutylacetamide as a hydrogen acceptor and citric acid as the hydrogen bond.

Recovery of Titanium from Ilmenite HCl Leachate Using a Hydrophobic Deep Eutectic Solvent

“…DOA was synthesized according to the reported literature . The 1 H NMR spectrum of DOA showed that it was successfully synthesized (Figure S1).…”

“…For instance, the DEO as a HBD for the extraction of boron from aqueous solutions was reported . The DOA as HBA via forming HDESs to recover citric acid from the fermentation broth was developed . On the other hand, Cai et al pointed out that diamide had a strong ability to extract Fe­(III) in the HCl solution, and Allal et al used DEO to extract titanium from chloride media .…”

“…24 The DOA as HBA via forming HDESs to recover citric acid from the fermentation broth was developed. 25 On the other hand, Cai et al pointed out that diamide had a strong ability to extract Fe(III) in the HCl solution, 26 and Allal et al used DEO to extract titanium from chloride media. 27 As a result, we were very interested in whether DOA could be treated as a HBA and DEO as a HBD to prepare HDES to recover titanium from ilmenite HCl leachate using an improved and more sustainable process.…”

“…DOA was synthesized according to the reported literature. 25 The 1 H NMR spectrum of DOA showed that it was successfully synthesized (Figure S1). DEO (99%) was purchased from Sinopharm Chemical Reagent Co. Ltd, China and used as received without further purification.…”

Separation of Lactic Acid Based on Amide-Based Hydrophobic Deep Eutectic Solvents: Insights from Experiments and Molecular Dynamics Simulations

“…14−16 However, the relatively complicated synthesis process and expensive raw chemicals limit their application in large-scale industries. 17,18 Recently, deep eutectic solvents (DESs), also called analogues of ILs, as new-generation solvents, have been developed at a fast pace due to their green character, biodegradability, tunability, low cost, and simple preparation, compared to conventional organic solvents and ILs. 19 they were widely used in the extraction of metals and organic compounds.…”