Results 81 to 90 of about 2,240 (223)

Integrating molecular dynamics simulations and experimental data for azeotrope predictions in binary mixtures

An azeotrope is a constant boiling point mixture, and its behavior is important for fluid separation processes. Predicting azeotropes from atomistic simulations is difficult due to the complexities and convergence problems of Monte Carlo and free-energy ...
Wang, Xiaoyu, Cheng, Bingqing ; https://orcid.org/   +1 more
core   +2 more sources

Vapor Liquid Equilibrium Measurement and Distillation Simulation for Azeotropic Distillation Separation of H₂O/EM Azeotrope

Separations
Since H2O and Ethylene Glycol Monomethyl Ether (EM) form a minimum-boiling azeotrope, 1-pentanol, 1-hexanol, and 1-heptanol are selected as entrainers to separate the azeotropic mixture (H2O/EM) using azeotropic distillation.
Chunli Li, Jinxin Zhang, Jiqing Rao, Kaile Shi, Yuze Sun, Wen Liu, Jiapeng Liu   +6 more
doaj   +1 more source

Separation of Alcohol-Ester Binary Mixtures by Pervaporation

Eurasian Chemico-Technological Journal, 1999
In this study, the pervaporation behavior of azeotrope forming methanol-methyl acetate and ethanol-ethyl acetate binary mixtures at different compositions was investigated at 30 and 45 °C using PE-based films having different thickness, compositions and
Sibel (Sain) Ozdemir, Salih Dincer, O. Tunc Savasci   +2 more
doaj   +1 more source

Separation of Mixture Containing Maximum Boiling Azeotrope with Extractive Heterogeneous-Azeotropic Distillation

Chemical Engineering Transactions, 2018
Separation of highly non-ideal mixtures with the use of extractive heterogeneous-azeotropic distillation (EHAD) has been successful in the last few years. In contrasts, most researches have focused on mixtures with containing minimal boiling homoazeotropes. Despite the fact that maximum boiling azeotropes are fewer in numbers it is important to examine
Tóth, András József, Szilágyi, Botond, Haáz, Enikő, Solti, Szabolcs, Nagy, Tibor, Tarjáni, Ariella Janka, Valentínyi, Nóra, Mizsey, Péter   +7 more
openaire   +3 more sources

Methods of separation of azeotrope mixtures by distillation

, 2018
Ovaj se rad bavi metodama destilacijskog razdvajanja azeotropnih smjesa. Kod azeotropnih smjesa, jednostavnom kolonskom destilacijom ne mogu se dobiti obje čiste komponente bez određenih modifikacija destilacijskog postupka, npr.
Kopić, Hrvoje
core  

Sustainable Approach to Waste-Minimized Sonogashira Cross-Coupling Reaction Based on Recoverable/Reusable Heterogeneous Catalytic/Base System and Acetonitrile Azeotrope

, 2016
In this contribution, we present a chemically efficient and sustainable protocol for the palladium-catalyzed copper-free Sonogashira cross-coupling reaction, based on the use of a heterogeneous catalytic system.
GRUTTADAURIA, Michelangelo, Vaccaro, L., Mclaughlin, M., Aprile, C., Vadym Kozell (3190974), Michael McLaughlin (778543), Stefano Santoro (1295103), Strappaveccia, Giacomo, BIVONA, Lucia Anna, McLaughlin, Michael, Lucia Anna Bivona (3190977), Santoro, S., Vaccaro, Luigi, Luigi Vaccaro (1496110), Michelangelo Gruttadauria (1713208), Giacomo Strappaveccia (1713205), Santoro, Stefano, Carmela Aprile (2394760), Aprile, Carmela, Kozell, V., Kozell, Vadym, Strappaveccia, G.   +21 more
core   +1 more source

Ionic-Liquid Based Separation of Azeotropic Mixtures

Chemical Engineering Transactions, 2014
A methodology for the screening of ionic liquids (ILs) as entrainers for ILs-based separation processes in binary aqueous azeotropic systems (e.g., water + ethanol and water + isopropanol) is presented.
K. Kulajanpeng, U. Suriyapraphadilok, R. Gani   +2 more
doaj   +1 more source

Structure investigations of binary azeotrope of diethyl amine-acetone by FT-IR and H-1 NMR spectroscopy

, 2009
The article shows results of FT-IR and 1H NMR study for azeotrope diethyl amine–acetone. Changes in chemical shifts and vibrational frequencies for pure diethyl amine, pure acetone and their azeotrope were obtained.
SAMANIPOUR S., GIOVANNETTI, Rita, ALIBABAEI, Leila   +2 more
core  

Overcoming the Ethanol/Water Azeotrope: A Review on Advanced Technologies for Bioethanol Purification

Engineering Reports
Ethanol dehydration is a crucial task in the production of bioethanol for fuel applications. Such separation represents a challenge due to the presence of the ethanol‐water azeotrope.
Fernando Israel Gómez‐Castro, Hilda Elizabeth Reynel‐Ávila, Araceli Guadalupe Romero‐Izquierdo, Claudia Gutiérrez‐Antonio, Didilia Ileana Mendoza‐Castillo, Adrián Bonilla‐Petriciolet, Oscar Daniel Lara‐Montaño, Mayra Margarita May‐Vázquez, Salvador Hernández   +8 more
doaj   +1 more source

Liquid-liquid measurement and correlation for separation of azeotrope (dimethyl carbonate and ethanol) with different imidazolium-based ionic liquids

, 2019
For separating the azeotrope of dimethyl carbonate (DMC) and ethanol, four imidazolium-based ionic liquids were selected as extractants. The liquid-liquid equilibrium data for the ternary systems DMC + ethanol + ILs were determined at 298.15 K under ...
Labarta, Juan A., Yan, Peisong, Wang, Yinglong, Xu, Dongmei, Zhang, Lianzheng, Wang, Ping, Gao, Jun   +6 more
core   +1 more source