摘要
采用沸点仪测定了顺丁烯二酸酐和邻苯二甲酸二甲酯二元体系在4.00,8.00和12.00kPa下的等压气液平衡数据以及纯DMP组分饱和蒸气压数据,将实验数据回归得到了纯DMP在417～525K范围内的Antoine方程.根据实验平衡温度、压力和组成数据进一步回归得到NRTL方程参数,推算出平衡气液相组成,并利用UNIFAC方程对实验数据进行了预测,其结果与沸点仪测定结果及NRTL拟合的结果基本相符.
Isobaric vapor-liquid equilibrium（VLE） data for the binary system of maleic anhydride（MAN） ＋ dimethyl phthalate（DMP） at 4. 00, 8.00 and 12.00 kPa were determined by using the ebulliometric method. Also, saturated vapor pressures of pure DMP were measured and Antoine constants were obtained. The param- eters of the NRTL model for the binary system were obtained by calculating the equilibrium compositions of the liquid anti vapor phase with the experimental equilibrium temperatures, pressures and feed compositions. Moreover, VLE data for the binary system were predicted by use of the UNIFAC model. The predicted results were compared with those from the ebulliometric method, and showed a good agreement.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2006年第12期2349-2352,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金(批准号:20476071)资助.
