esterification of benzoic acid and ethanol

Na 2 CO 3: 11mL. Esterification was catalyzed with sulfuric acid and with ion exchange resins. These metrics are regularly updated to reflect usage leading up to the last few days. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Benzocaine is structurally analogous to Cocaine, Lidocaine, and Novocaine (shown below) and is prepared by the esterification of p-aminobenzoic acid with ethanol. The kinetic behavior of the synthesis and hydrolysis of ethyl benzoate over an acidic cation-exchange resin, Amberlyst 39, was investigated with a fixed-bed reactor at atmospheric pressure. Information. Mass of Substances-p-aminobenzoic acid: 1.201g. https://doi.org/10.1016/j.ceramint.2013.04.077. the Altmetric Attention Score and how the score is calculated. Ethyl benzoate, C 9 H 10 O 2, is the ester formed by the condensation of benzoic acid and ethanol. The kinetic data of both the synthesis and hydrolysis of ethyl benzoate were simultaneously correlated with the quasi-homogeneous, Eley−Rideal, and Langmuir−Hinshelwood−Hougen−Watson (LHHW) models. Your Mendeley pairing has expired. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. You’ve supercharged your research process with ACS and Mendeley! redistribute this material, requesters must process their own requests via the RightsLink permission not otherwise permitted to reproduce, republish, redistribute, or sell any Supporting Information This material is available free of charge via the Internet at http://pubs.acs.org. The microwave reactor operated at medium pressure and high temperature conditions. A, B, C, and D = benzoic acid, ethanol, ethyl benzoate, and water, respectively, Af = Arrhenius preexponential factor of the forward reaction (mol min-1 kg-1), Aij/R and Aji/R = interaction energy parameters in the NRTL model (K), Ar = Arrhenius preexponential factor of the reverse reaction (mol min-1 kg-1), CA0 = inlet concentration of benzoic acid (mol cm-3), CD0 = inlet concentration of water (mol cm-3), E0,f = activation energy of the forward reaction (kJ mol-1), E0,r = activation energy of the reverse reaction (kJ mol-1), F = volumetric flow rate of feed (cm3 min-1), FA = molar flow rate of benzoic acid in feed (mol min-1), FD = molar flow rate of water in feed (mol min-1), Δhf = molar heat of ethyl benzoate synthesis (kJ mol-1), kf = rate constant of forward reaction (mol min-1 kg-1), kr = rate constant of reverse reaction (mol min-1 kg-1), KD = adsorption equilibrium constant of water, Ka = equilibrium constant in terms of activity, Kγ = equilibrium constant in terms of activity coefficient, K1,2 = ratio of adsorption constants between components 1 and 2, n0 = total initial number of moles in the liquid phase (mol), nis = number of moles of component i adsorbed on the surface per unit mass of absorbent (mol g-1), ns = the constant total number of moles which can be accommodated in the adsorbed phase by unit mass of solid (mol g-1), Nf = number of data points of synthesis of ethyl benzoate, Nr = number of data points of hydrolysis of ethyl benzoate, p = number of parameters in the kinetic models, −rA = reaction rate of benzoic acid (mol min-1 kg-1), −rD = reaction rate of water (mol min-1 kg-1), Δx = change in the mole fraction in the liquid phase, θB0 = molar ratio of feed (ethanol to benzoic acid), θC0‘ = molar ratio of ethyl benzoate to water. Article Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. Users are L'estérification est une réaction de chimie organique au cours de laquelle un groupe fonctionnel ester R1-COO-R2 est obtenu par condensation d'un groupe acide carboxylique R1-COOH et d'un groupe alcool R2-OH ainsi que formation d'eau H 2 O. Find more information on the Altmetric Attention Score and how the score is calculated. After ethanol and sulfuric acid added to p-aminobenzoic acid, solution became clumpy and then turned into a white foam. Kinetic parameters of esterification were determined in a stirred glass vessel using conventional heating. benzocaine: 0.368g. Gaodong Yang, Pingkeng Wu, Zheng Zhou, Xiangpo He, Weimin Meng, and Zhibing Zhang . Acid-catalyzed esterification of benzoic acid with ethanol was investigated in a continuous tubular flow reactor heated by microwaves. We use cookies to help provide and enhance our service and tailor content and ads. https://doi.org/10.1016/S1385-8947(99)00171-0. from the ACS website, either in whole or in part, in either machine-readable form or any other form Kinetic modeling of benzoic acid esterification using functionalized silica gel. The Canadian Journal of Chemical Engineering. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Esterification of benzoic acid in microwave tubular flow reactor.

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