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用浊点法与折光分析相结合的方法测定了水-异丁醇-环己烷三元系(体系Ⅰ)30℃下的液-液平衡相图。用色谱分析方法测定了水-若干低碳醇(体系Ⅱ)及水-低碳醇-环己烷(体系Ⅲ)的液-液平衡关系。用UNIQUAC模型预测,实测值与计算值平均偏差对体系Ⅰ为0.49%(mol,下同),对体系Ⅱ为O.71%。体系Ⅲ为1.07%。
The liquid-liquid equilibrium phase diagram of water-isobutanol-cyclohexane ternary system (systemⅠ) at 30 ℃ was determined by a combination of cloud point method and refractive index analysis. The liquid-liquid equilibrium of water-several lower alcohols (system Ⅱ) and water-lower alcohols-cyclohexane (system Ⅲ) was determined by chromatographic analysis. Predicted by the UNIQUAC model, the average deviation between measured value and calculated value was 0.49% (mol) for system I and 0.71% for system II. System Ⅲ is 1.07%.