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用气液色谱法测定了戊烯-1-炔-4(C_5~(?))与异戊二烯(IP)在N-甲基吡咯烷酮(NMP)、二甲基甲酰胺(DMF)和乙腈中的无限稀释下的相对挥发度.结果表明,NMP分离能力最好,DMF次之,乙腈最次,乙腈掺水后可改善分离能力.用鼓泡夹带平衡釜测定了下列体系在0、15、30℃左右的汽液平衡:(1)2-甲基丁烯-2-C_5~(?);(2)正戊烷-C_5~(?);(3)IP-C_5~(?);(4)C_5~(?)乙腈;(5)IP-C_5~(?)-乙腈;(6)IP-C_5~(?)-DMF;(7)IP-C_5~(?)-NMP.用回归出的二元Wilson参数推算体系(5)的三元汽液平衡与实测值比较,汽相组成的平均偏差为0.0114摩尔分数.
The gas chromatographic method was used to determine the content of pentene-1-yne-4 (C_5 ~ (?)) And isoprene (IP) in N-methylpyrrolidone (NMP), dimethylformamide The results showed that NMP had the best separation ability, followed by DMF followed by acetonitrile for the first time, and the separation ability could be improved by adding water with acetonitrile.According to the following conditions, , Vapor-liquid equilibrium at about 30 ℃: (1) 2-methylbutene-2-C_5 ~ (?); ; (4) C_5 ~ (?) Acetonitrile; (5) IP-C_5 ~ (?) - acetonitrile; (6) IP_C_5 ~ (?) - DMF; Using the regressed binary Wilson parameter estimation system (5), the three-component vapor-liquid equilibrium is compared with the measured data. The average deviation of vapor phase composition is 0.0114 mol fraction.