Measurement of phase equilibria data for the extraction of toluene from alkane using different solvents

Liquid–Liquid Equilibrium Data for Ternary Systems Containing Alkanes (n-Pentane, n-Hexane, n-Heptane, and n-Octane) + Alcohol (Methanol and Ethanol) + Protic Ionic Liquid (2-HEAF)

“…Liquid–liquid equilibria for the following ternary mixtures have been experimentally determined by using equilibrium cells designed by Stragevich: n -pentane + methanol + 2-HEAF, n -hexane + methanol + 2-HEAF, n -heptane + methanol + 2-HEAF, n -octane + methanol + 2-HEAF, n -pentane + ethanol + 2-HEAF, n -hexane + ethanol + 2-HEAF, n -heptane + ethanol + 2-HEAF, and n -octane + ethanol + 2-HEAF at 298.15 K and atmospheric pressure (101.3 kPa). These mixtures were continually stirred for 3 h and then left at rest for 16 h until the formation of a well-defined interface between the two phases . For density measurements, a 5 mL sample of each liquid phase was carefully collected.…”

“…20 To our knowledge, ternary-system data using PILs as solvents are still scarce in the literature. In 2015, Mesquita et al 21 studied decane (1) + toluene (2) + 2-HEAF (3) ternary systems at T = 303.15 and 333.15 K. Additionally, in 2017, Silva et al 22 studied water + 2-hydroxyethylammonium propanoate, 2-hydroxyethylammonium butanoate, or 2hydroxyethylammonium pentanoate + 1-pentanol at T = 293.15, 313.15, and 333.15 K. For this reason, in this paper, experimental data for alkanes (n-pentane, n-hexane, n-heptane, or n-octane) + (methanol or ethanol) + 2-HEAF have been studied at T = 298.15 K and at atmospheric pressure (101.3 kPa). Generally, LLE data are usually modeled by using local composition models (e.g., NRTL) for academic and industrial purposes.…”

“…These mixtures were continually stirred for 3 h and then left at rest for 16 h until the formation of a welldefined interface between the two phases. 21 For density measurements, a 5 mL sample of each liquid phase was carefully collected. All experimental density data were obtained by an intermediate of a DSA 5000 Anton Paar densimeter with a combined standard uncertainty of ±8 × 10 −3 g cm −3 .…”

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

“…Distribution ratios of the systems { n -decane + toluene + solvent} were measured at 298.15 K and 1.01 bar and for { n -decane + toluene + sulfolane/[2-HEAF]/glycerol/NFM} were measured 303.15 K and 1.01 bar. Data were taken from refs and, − and the abbreviation definitions are available in the Abbreviation section.…”

Equilíbrio líquido-líquido e modelagem termodinâmica para avaliação da gama-valerolactona (GVL) como solvente verde na extração de solutos oxigenados

“…(24) A literatura recente revela a versatilidade desses modelos, sendo observadas aplicações em líquidos iônicos (XU et al, 2017;WEN et al, 2017;VUKSANOVIC;KIJEVCANIN;RADOVIC, 2018;ASRAMI;SAIEN, 2018), sistemas graxos da desacidificação/desodorização de óleos vegetais e produção de biodiesel, contendo compostos polares de cadeia curta (como água, metanol e etanol), aldeídos, ácidos carboxílicos, hidrocarbonetos e compostos aromáticos (MESQUITA et al, 2015;SANTOS et al, 2015;DAI et al, 2016;MAY;CERIANI, 2016;CERIANI, 2016;HOMRICH et al, 2017), além da própria aplicação desenvolvida no grupo de pesquisa LPT para sistemas envolvendo a GVL (CORRÊA; SOARES; CERIANI, 2019a; 2019b; PAZ; CORRÊA; CERIANI, 2020).…”