Thermodynamic Estimation of Synthesis of Guaiacol from Dimethyl Carbornate and Catechol

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Abstract The standard enthalpy of formation,the standard formation entropy and heat capacity of dimethyl carbornate,catechol and guaiacol were calculated by Benson-group contribution.The changes of enthalpy,the free energy,and the equilibrium constant were evaluated according to the chemical thermodynamics principle at direct synthesis of guaiacol with dimethyl carbornate and catechol.The results showed that this reaction is endothermal,the change of free energy is negative,and the equilibrium constant K is large,the temperature has little influence on the equilibrium constant K.The reaction can be proceeded at relative low temperature to keep high conversion with less side reactions,so the key solution is to develop low-temperature catalysts with high reactivity.

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Received 2009-05-15; published 2009-05-15

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SHU Ting,HU Chun-di.Thermodynamic Estimation of Synthesis of Guaiacol from Dimethyl Carbornate and Catechol[J] Chemcial Industry and Engineering, 2009,V26(3): 244-247

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