Kumar, Nikhil; Banerjee, Tamal published their research in Journal of Chemical & Engineering Data in 2021. The article was titled 《Dearomatization Insights with Phosphonium-Based Deep Eutectic Solvent: Liquid-Liquid Equilibria Experiments and Predictions》.Computed Properties of C19H18BrP The article contains the following contents:
In a challenge to develop a process that meets the criteria of being “”green”” in the extraction of aromatics, deep eutectic solvents (DESs) are currently gaining importance as separation media. This work reports a phosphonium-based DES for the dearomatization of model diesel components at 25°C and p = 1 bar. The DES comprising a hydrogen bond acceptor, namely, methyltriphenylphosphonium bromide, along with ethylene glycol as a hydrogen bond donor, was formulated with a molar ratio of 1:4. The DES was then used to extract benzene from representative diesel fuel components, a mixture of n-decane, n-dodecane, and n-hexadecane. Ternary liquid-liquid equilibrium experiments were then performed at ambient conditions with different benzene concentrations with the feed varying from 2 to 20 wt %. An absence of the solvent in the raffinate phase was found in all the tie lines, suggesting limited solvent recovery costs. Besides, it was also found that all three ternary systems show type I phase activity with pos. slopes, indicating that the desired removal of benzene requires a small amount of solvent. The quantum chem.-based COSMO-SAC model was then used to predict the tie lines giving an average root mean square deviation value of 1.2%. The mechanism of the extraction process was also extensively studied with the help of quant. 1H NMR and Fourier transform IR spectroscopy. Higher benzene extraction efficiencies were observed due to the strong noncovalent interaction between the DES and benzene. In the experiment, the researchers used many compounds, for example, Methyltriphenylphosphonium bromide(cas: 1779-49-3Computed Properties of C19H18BrP)
Methyltriphenylphosphonium bromide(cas: 1779-49-3) is an organophosphorus compound, with potential use as a precursor and a solvent in organic synthesis. And it is used widely for methylenation via the Wittig reaction.Computed Properties of C19H18BrP
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary