Results 41 to 50 of about 2,636 (212)

UNIQUAC activity coefficient model for the systems of 1-propanol + water and 2-propanol + water [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2005
Predictions of vapor liquid equilibria and azeotrope conditions of binary systems of 1-propanol+ water and 2-propanol+water at 30, 60, and 100 kPa were conducted in this work.
Numuang, C., Kaewsichan, L.
doaj  

Flowsheets for hydroxyacetone–phenol binary mixture separation: The use of special distillation methods

Тонкие химические технологии, 2023
Objectives. To study the possibility of hydroxyacetone–phenol binary mixture (a constituent of a mixture of phenol production by the cumene method) separation in flowsheets based on the use of distillation special methods.
I. S. Gaganov, E. V. Rytova, A. K. Frolkova   +2 more
doaj   +1 more source

Recent Advances in Luminescent Hydrogen‐Bonded Organic Frameworks (HOFs): Linker Design, Phosphorescence, and Smart Responsiveness

Information &Functional Materials, EarlyView.
Luminescent Hydrogen‐bonded organic frameworks (HOFs) provide an innovative platform for sensing and optoelectronic applications. This review outlines design principles, recent advances in synthesis and optical tuning, diverse sensing applications, and discusses current challenges and future directions for HOFs.
Heng Wu, Fengqi Wang, Zhuoyan Dong, Yuanchao Lv, Zhangjing Zhang   +4 more
wiley   +1 more source

Rethinking ethanol separation in continuous spirit production from a process intensification perspective

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract Continuous neutral‐alcohol and food‐grade ethanol production is an energy‐intensive process in which distillation and rectification alone account for 50–85% of total plant energy use. While significant advances in separation technology have emerged over the past two decades, the spirits industry continues to rely predominantly on multi‐effect ...
Anton A Kiss
wiley   +1 more source

Polymorphism and NIR Photoluminescence of Anhydrous Ytterbium(III) Acetate: Reversible Transformations of Three Polar Structures in the Temperature Range 100–593 K

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
Crystallographic variety, reversible transitions, and NIR emission of anhydrous Yb(OAc)3: identification of a new γ‐phase results in altogether three modifications all crystallizing in polar space groups related by reversible solid–solid phase transitions.
Maksim A. Zhernakov, Tobias Stürzer, Yuriy G. Denisenko, Jakob Möbs, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source

Comparison of alternative methods for methyl acetate + methanol + acetic acid + acetic anhydride mixture separation

Тонкие химические технологии, 2019
Objectives. The paper is a comparative analysis of methyl acetate + methanol + acetic acid + acetic anhydride industrial mixture separation flowsheets based on the use of special distillation methods (extractive distillation and pressure-swing ...
A. V. Frolkova, Yu. I. Shashkova, А. К. Frolkova, М. A. Mayevskiy   +3 more
doaj   +1 more source

Erste Hinweise auf Ozonido‐TMC‐Komplexe von Eisen und Kobalt

Angewandte Chemie, Volume 138, Issue 37, 7 September 2026.
Die Umsetzung der Eisen(II)‐Komplexe [(TMC)Fe(OTf)]BArF und [(D12‐TMC)Fe(OTf)]BArF sowie der Kobalt(II)‐Komplexe [(TMC)Co(OTf)]BArF und [(D12‐TMC)Co(X)]BArF (X = OTf, F) mit Ozon führt in einem 4:1‐Gemisch aus 2‐Me‐THF und THF bei Temperaturen bis −155°C zur Bildung von Ozonido‐ und Oxido‐Komplexen.
Stefan Schaub, Dennis Gerbig, Raffael C. Wende, Heike Hausmann, Jonathan Becker, Christian Würtele, Laura Senft, Ina Kellner, Gunasekaran Velmurugan, Marion Kerscher, Ivana Ivanović‐Burmazović, Peter Comba, Joshua Telser, Peter R. Schreiner, Siegfried Schindler   +14 more
wiley   +1 more source

Glycerol transesterification with ethyl acetate to synthesize acetins using ethyl acetate as reactant and entrainer [PDF]

Biofuel Research Journal, 2017
Transesterification of glycerol with ethyl acetate was performed over acidic catalysts in the batch and semi-batch systems. Ethyl acetate was used as reactant and entrainer to remove the produced ethanol during the reaction, through azeotrope formation ...
Amin Shafiei, Hajar Rastegari, Hassan S. Ghaziaskar, Mohammad Yalpani   +3 more
doaj   +1 more source

Simulation of extractive distillation for separating Acetonitrile-Toluene using Butyl Propionate as entrainer

Teknika, 2023
Acetonitrile is known as a polar solvent that can dissolve in non-polar hydrocarbon liquids. As an example of a nonpolar solvent, toluene is one of the solvents that dissolves well in acetonitrile. If acetonitrile and toluene are mixed, a minimum boiling
Dwi Agus Prasetyo, Sang-Wook Han, Kyung-Jun Shin, Byung-Jick Kim   +3 more
doaj   +1 more source

First Evidence for Ozonido‐TMC Complexes of Iron and Cobalt

Angewandte Chemie International Edition, Volume 65, Issue 37, 7 September 2026.
Reaction of ozone with iron(II) complexes [(TMC)Fe(OTf)]BArF, [(D12‐TMC)Fe(OTf)]BArF, and cobalt(II) complexes [(TMC)Co(OTf)]BArF, [(D12‐TMC)Co(X)]BArF (X = OTf, F) gives ozonido and oxido complexes at temperatures as low as –155°C in a 4:1 mixture of 2‐Me‐THF and THF. ABSTRACT We present compelling evidence for the first Fe‐ and Co‐ozonido complexes: [
Stefan Schaub, Dennis Gerbig, Raffael C. Wende, Heike Hausmann, Jonathan Becker, Christian Würtele, Laura Senft, Ina Kellner, Gunasekaran Velmurugan, Marion Kerscher, Ivana Ivanović‐Burmazović, Peter Comba, Joshua Telser, Peter R. Schreiner, Siegfried Schindler   +14 more
wiley   +1 more source