摘要
根据 Conder 和 Purnell 提出的有限浓度普遍化保留理论,导出了有限稀释活度系数公式,用气相色谱法测定了苯-DMF 和噻吩-DMF 两个二元体系在稀溶液区的汽液平衡数据。用 Margules方程和 Wilson 方程对测得的汽液平衡数据进行了关联,并与平衡釜测定的汽液平衡数据作了比较,征明可在全浓度范围内用 Wilson 方程推算苯-噻吩-DMF 体系的汽液平衡数据。
An expression for finite dilution activity coefficient was derived according to Conder and Purnell's theory.The VLE data of Benzene-DMF and Thiophene-DMF systems in dilute solution was measured with gas chromatography,and these data were correlated by Wilson equation.It was ()ved that the VLE data of Benzene-Thiophene-DMF system can be calculated by Wilson equation () the whole range of concentration.
基金
化工部重点科研项目
关键词
苯
塞吩
二甲基酰胺
汽液平衡
finite dilute activity coefficient
gas chromatography
benzene
thiophene
N
NDimethylformamide (DMF).
