针对PR-HV-NRTL模型对R170(乙烷)+R23(三氟甲烷)系在低温下的异常计算结果,采用扩展的双液相模型对低温区进行了计算,从理论上预测出该混合物出现液相分离的可能;对185.26 K温度下的汽液液相平衡进行了初步的实验,首次证实了R170+R23系存在汽液液相平衡现象,这被认为是发现的第三种具有汽液液相平衡特性的HC+HFC混合物.
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