Documents disponibles écrits par cet auteur

Carboxylation of toluene by CO2 generating p - toluic acid / Antaram N. Sarve in Industrial & engineering chemistry research, Vol. 51 N° 14 (Avril 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 14 (Avril 2012) . - pp. 5174-518 Titre : Carboxylation of toluene by CO2 generating p - toluic acid : A kinetic look Type de document : texte imprimé Auteurs : Antaram N. Sarve, Auteur ; Pralhad A. Ganeshpure, Auteur ; Pradip Munshi, Auteur Année de publication : 2012 Article en page(s) : pp. 5174-518 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Kinetics  Carbon  dioxide  Carboxylation Résumé : A kinetic study involving stoichiometry, order of reaction, rate constants (k), and rate laws has been performed on carboxylation of toluene by CO2 generating p-toluic acid by two routes: (a) Friedel—Crafts reaction, C6H5―CH3 + CO2 + Al2Cl6 → CH3―C6H4―COOAl2Cl5 + HCl and (b) Friedel―Crafts reaction with incubation method involving two steps, CO2+ + Al2Cl6 → CO2:Al2Cl6 and CO2:Al2Cl6 + C6H5―CH3→ CH3―C6H4―COOAl2Cl5 + HCl. The adduct OCO:Al2Cl6 was estimated by monitoring the peak at 1662 cm―1 in the FT1R spectra. The k values for the Friedel-Crafts reaction was found to be 2.28 × 10―9 mol―2 h―1, which is much lower than that for the reactions involved in the incubation method, viz, 5.4 × 10―5 and 1.9 X 10―3 mol―1 h―1, respectively. ΔE, ΔG, ΔS, ΔH, and the Arrhenius constant (A) have been calculated for the above reactions. Comparison shows that the incubation method is faster than the Friedel-Crafts reaction. However, both the reactions follow first order kinetics with respect to each of the reactants. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25783425 [article] Carboxylation of toluene by CO2 generating p - toluic acid : A kinetic look [texte imprimé] / Antaram N. Sarve, Auteur ; Pralhad A. Ganeshpure, Auteur ; Pradip Munshi, Auteur . - 2012 . - pp. 5174-518. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 14 (Avril 2012) . - pp. 5174-518 Mots-clés : Kinetics  Carbon  dioxide  Carboxylation Résumé : A kinetic study involving stoichiometry, order of reaction, rate constants (k), and rate laws has been performed on carboxylation of toluene by CO2 generating p-toluic acid by two routes: (a) Friedel—Crafts reaction, C6H5―CH3 + CO2 + Al2Cl6 → CH3―C6H4―COOAl2Cl5 + HCl and (b) Friedel―Crafts reaction with incubation method involving two steps, CO2+ + Al2Cl6 → CO2:Al2Cl6 and CO2:Al2Cl6 + C6H5―CH3→ CH3―C6H4―COOAl2Cl5 + HCl. The adduct OCO:Al2Cl6 was estimated by monitoring the peak at 1662 cm―1 in the FT1R spectra. The k values for the Friedel-Crafts reaction was found to be 2.28 × 10―9 mol―2 h―1, which is much lower than that for the reactions involved in the incubation method, viz, 5.4 × 10―5 and 1.9 X 10―3 mol―1 h―1, respectively. ΔE, ΔG, ΔS, ΔH, and the Arrhenius constant (A) have been calculated for the above reactions. Comparison shows that the incubation method is faster than the Friedel-Crafts reaction. However, both the reactions follow first order kinetics with respect to each of the reactants. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25783425