棕榈酸异丙酯反应体系热力学参数的测定

摘要

In order to analyze the feasibility of an two-step synthesis method of isopropyl palmitate, thermodynamic parameters of chemicals used in the reaction were measured with differential scanning calorimeter DSC-60 and an oxygen bomb calorimeter XRY-1C. Specific heat capacities and standard molar combustion enthalpies of those relevant chemicals are obtained. Moreover, molar formation enthalpies and the whole reaction enthalpy change are calculated. These thermodynamic results provide fundamental data for the industrial continuous production of isopropyl palmitate.%为确定"两步法"合成棕榈酸异丙酯工艺过程热力学可行性,进一步提高工程应用中引用数据的可靠性,采用DSC-60差示扫描量热仪和XRY-1C氧弹量热器等分别对该反应体系中物质的定压比热容和燃烧热进行了实验测定,并通过热力学关系式计算得到有关物质的摩尔生成焓及反应焓变,为连续化工艺的设计提供了基础热力学数据.