左旋海松酸乙酯马来酐加合物与乙醇的动力学研究

<正>本文以无水三氯化铝为催化剂,作了左旋海松酸乙酯马来酐加合物与乙醇的催化酯化动力学实验,研究了反映温度、反应物浓度和催化剂浓度的影响,并给出了第二步的催化酯化动力学关系式: 其中,B代表乙醇,A代表左旋海松酸乙酯马来酐加合物单乙酯。在做动力学实验之前,制备出了左旋海松酸乙酯马来酐加合物,并给出了熔点,酐的含量值及气相色谱、红外光谱、质谱图。

ESTERIFICATION KINETICS OF AN ADDUCT OF ETHYL PIMAEICATE AND MALEIC ANHYDRIDE WITH ETHYL ALCOHOL

Kineties of catalytic esterification of alcohol with an adduct of ethyl pima ricate and maleic anhydride have been investigated using anhydrous aluminium chloride as catalyst. Effects of variables such as temperature, concentrations of reactants and catalyst have been studied and a correlation of second-step kinetics has been proposed where B stands for ethyl alcohol and A represents the adduct of ethyl pimaricate and moneethyl maleicate. Prior to the investigation of the kinetics, a pure adduct of ethyl pimaricate and maleic anhydride were prepared and its melting point, content of anhydride and gas chromatogram, infrered spectum, mass spectum given.