【摘要】 本文用改进Washburn型小沸点计测定了N-甲基-2-吡咯烷酮-水二元物系在760mmHg(101.325kP_a)下平衡液相组成和泡点数据。用单纯形法回归计算Wilson相互作用能项参数,从而计算得到平衡汽相组成。又用改进Rose釜直接测定了该二元物系在760mmHg下之平衡汽相组成,与计算结果相一致。对该二元物系与理想溶液之偏差规律作了定性的分析探讨。更多还原

【Abstract】 This paper describes the measurement of the equilibrious liquid composition and boiling points of N-methylpyrrolidone-water binary system at 760mmHg (101.325kPa) with a modified Washburn ebulliometer.The parameters of interaction energy of Wilson’s model were calculated by the simplex fitting method and therefore the equilibrious vapor composition of this system was determined. Then the vapor composition of this system was measured directly at 760mmHg with a modified Rose stil. The results obtained are in agreement with the calculated vapor composition. Finally, the qualitative explanation is given for the deviation of this system from an ideal solution.更多还原