Documents disponibles écrits par cet auteur

Extraction of acrylic, propionic, and butyric Acid using aliquat 336 in oleyl alcohol / Amit Keshav in Industrial & engineering chemistry research, Vol. 48 N°2 (Janvier 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N°2 (Janvier 2009) . - p.888–893 Titre : Extraction of acrylic, propionic, and butyric Acid using aliquat 336 in oleyl alcohol : equilibria and effect of temperature Type de document : texte imprimé Auteurs : Amit Keshav, Auteur ; Kailas L. Wasewar, Auteur ; Shri Chand, Auteur Année de publication : 2009 Article en page(s) : p.888–893 Note générale : chemical engineering Langues : Anglais (eng) Mots-clés : Acrylic--Propionic--Butyric  Acid Résumé : Reactive extractions of acrylic, propionic, and butyric acids using Aliquat 336 in oleyl alcohol were carried out to study the effects of temperature (305−333 K). The effects of temperature on the partition (P) and dimerization (D) coefficients were evaluated, and it was found that P decreases with increasing temperature, whereas the effects of temperature on D vary. Chemical extractions using Aliquat 336 in oleyl alcohol at temperatures ranging from 305 to 333 K show an increase in KE(1:1) values with temperature up to 313 K for acrylic and propionic acids but a decrease with increasing temperature for butyric acid over the range studied. Differences in the hydrophobicity and octanol−water partition coefficient are suggested as the reasons for the differences in extraction by the respective acids using Aliquat 336 in oleyl alcohol. The enthalpy (ΔH) and entropy (ΔS) of reaction were evaluated at different temperatures, and their difference was assessed in terms of different parameters. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8010337 [article] Extraction of acrylic, propionic, and butyric Acid using aliquat 336 in oleyl alcohol : equilibria and effect of temperature [texte imprimé] / Amit Keshav, Auteur ; Kailas L. Wasewar, Auteur ; Shri Chand, Auteur . - 2009 . - p.888–893. chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N°2 (Janvier 2009) . - p.888–893 Mots-clés : Acrylic--Propionic--Butyric  Acid Résumé : Reactive extractions of acrylic, propionic, and butyric acids using Aliquat 336 in oleyl alcohol were carried out to study the effects of temperature (305−333 K). The effects of temperature on the partition (P) and dimerization (D) coefficients were evaluated, and it was found that P decreases with increasing temperature, whereas the effects of temperature on D vary. Chemical extractions using Aliquat 336 in oleyl alcohol at temperatures ranging from 305 to 333 K show an increase in KE(1:1) values with temperature up to 313 K for acrylic and propionic acids but a decrease with increasing temperature for butyric acid over the range studied. Differences in the hydrophobicity and octanol−water partition coefficient are suggested as the reasons for the differences in extraction by the respective acids using Aliquat 336 in oleyl alcohol. The enthalpy (ΔH) and entropy (ΔS) of reaction were evaluated at different temperatures, and their difference was assessed in terms of different parameters. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8010337