Results 71 to 80 of about 2,240 (223)
Membrane Polymers for the Pervaporative Separation of Polar Organics: Methanol and Acetonitrile
Journal of Applied Polymer Science, Volume 143, Issue 12, March 20, 2026.We tested seven polymers as membranes for the pervaporative separation of methanol‐acetonitrile mixtures. Chloroprene rubber, silicone rubber, and Matrimid showed effective separation by favoring acetonitrile transport, enabling azeotrope breaking. Plasticization was assessed using Broadband Dielectric Spectroscopy.
Jordan Janák +8 more
wiley +1 more source
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. The unit-structure of cluster has been
Alibabaei, Leila +2 more
core +1 more source
, 2022 The extractive distillation of a methanol and dimethyl carbonate (DMC) azeotrope system was taken as an example, and the simulation and optimization of the conventional extractive process (CEP) and extractive dividing wall column (EDWC) were carried out ...
Meiqin Zheng, Jiawei Wang
core +1 more source
PHYSICAL AND MATHEMATICAL MODEL OF LIQUID AND GAS PHASES EQUILIBRIUM AT CONSTANT PRESSURE
Вестник Кемеровского государственного университета, 2013 PCEAS is a forecasting molecular thermodynamic model based on the experimental data about pure components pa rameters. It can feature phase equilibrium of mixtures of different materials (liquid solvents; solid salts and polymers); and also allows to ...
Z. N. Esina +2 more
doaj
Novel approach to predict the azeotropy at any pressure using classification by subgroups [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2012 Distillation is one of the dominating separation processes, but there are some problems as inseparable mixtures areformed in some cases. This phenomenon is called as azeotropy.
Taehyung Kim +3 more
doaj
, 2008 In this paper, chitosan (CS)/poly (vinyl pyrrolidone) (PVP) blend membranes crosslinked by glutaraldehyde (GA) were prepared for the separation of ethyl acetate/ethanol/water azeotrope by pervaporation (PV).
Zhu, Ai Mei +6 more
core +1 more source
Using Dialkylimidazolium Ionic Liquids To Break the Methanol + Methyl Acetate Azeotrope
, 2019 Separating mixtures that form azeotropes or have relative volatilities close to 1.0 has always been a challenging problem. Conventional distillation cannot yield high purity products for these systems, so separating them often becomes a capital- and ...
Joshua M. Winnert (7945424) +5 more
core +1 more source
Infinite/infinite analysis as a tool for an early oriented synthesis of a reactive pressure swing distillation [PDF]
, 2007 The study contributes to the characterization of an original reactive pressure swing distillation system. The methyl acetate (MeAc) transesterification with ethanol (EtOH) to produce methanol (MeOH) and ethyl acetate (EtAc) is shown as illustrative ...
Reneaume, Jean-Michel +6 more
core +1 more source
Egyptian Journal of Petroleum, 2019 Two binary sets of gasoline-methanol (GM) and gasoline-ethanol (GE) blends along with two other ternary sets of gasoline-methanol-ethanol (GME) blends were formulated comprising single and dual alcohol.
Manal Amine, Y. Barakat
doaj +1 more source
Chemical Engineering Transactions, 2017 Methyl ethyl ketone (MEK), isopropanol (IPA), and ethanol (EtOH) are important chemical materials and widely used as intermediates solvent in many chemical processes.
M. Li +5 more
doaj +1 more source