摘 要: 用Benson基团加和法估算了气态反应物及产物的标准摩尔生成焓，标准摩尔熵。用Rihani基团加和法估算了气态反应物及产物的摩尔定压热容与温度的关系。用Fedors基团参数法估算了液态反应物及产物的的标准摩尔气化焓。用Joback法估算了液态反应物及产物的正常沸点。通过转换得到液态反应物及产物的标准摩尔生成焓，标准摩尔熵。由估算的热力学数据导出了各步反应的标准摩尔反应焓，标准摩尔反应熵，标准摩尔反应吉布斯函数，标准平衡常数分别与温度之间的关系。并对这些关系式进行了分析。
关键词：三蓖酸甘油酯；甲醇；基团加和法；热力学分析
Thermodynamic Analysis of Synthesis of Methyl Ricinoleate
Zhou Song1 Zhang Yutao1,2
（1. Department of Chemistry and Chemical Engineering, Anshun university, Anshun, Guizhou, 561000, China; 2 Engineering Technology Center of Control and Remediation of Soil Contamination of Provincial Science & Technology Bureau, Anshun university, Anshun, Guizhou, 561000, China）
Abstract: The standard molar enthalpies of formation , standard molar entropy of gaseous reactants and productswere were estimated by Benson addition method. The relationship between the molar heat capacity at constant pressureof the gaseous reactants and the products and temperature was also estimated by Rihani addition method. The standard molar enthalpy of vaporizationof the liquid reactants and products was estimated by the Fedors group parameter method. The normal boiling points of liquid reactants and products were estimated by Joback method. The standard molar enthalpy of formation ,Standard molar entropyof the liquid reactant and the product were obtained by conversion. The relationship between standard molar reaction enthalpies, Standard molar reaction entropy, Standard molar reaction Gibbs function, standard equilibrium constantsof the reactions and temperature were respectively derived from the estimated thermodynamic data. And these relations were analyzed.
Keywords：triglycerides of ricinoleic acid; methanol; group addition method; thermodynamic analysis
三蓖酸甘油酯和甲醇各步反应及总反应为：
第一步：[RCOO]3C3H5(l)+CH3OH(l)→RCOOCH3(l)+ [RCOO]2C3H5OH(l) （1）
三蓖酸甘油酯 甲醇 蓖酸甲酯 二蓖酸甘油酯
第二步：[RCOO]2C3H5OH(l) +CH3OH(l)→RCOOCH3(l)+ RCOO C3H5(OH)2(l) （2）
二蓖酸甘油酯 甲醇 蓖酸甲酯 一蓖酸甘油酯
第三步：RCOO C3H5(OH)2(l) +CH3OH(l)→RCOOCH3(l)+ C3H5(OH)3(l) （3）
一蓖酸甘油酯 甲醇 蓖酸甲酯 甘油
总反应：[RCOO]3C3H5(l)+3CH3OH(l)→3RCOOCH3(l)+ C3H5(OH)3(l) （4）
三蓖酸甘油酯 甲醇 蓖酸甲酯 甘油
其中：R= CH3(CH2)5CH(OH)CH2CH＝CH(CH2)7-。
作者：周 松