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Consider a ternary mixture of hexane, heptane, and methanol. A temperature of 32.85 °C is assumed. This liquid-liquid equilibrium diagram is classified as type II. The Demonstration computes the tie line originating from a user-specified position on the extract curve (i.e., known values of ... for ... are assumed). In effect, one has to find the steady-state solution of the following system of ODEs: ... for ... , where ... is the mole fraction of component ... in phase ... (hexane-rich or hexane-lean phases) and ... is the activity coefficient of component ... in phase ... predicted using the non-random two liquid (NRTL) model.

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      EUN,LOM,LRE4,work-cmr-id:398658,http://demonstrations.wolfram.com:http://demonstrations.wolfram.com/ComputationOfTieLinesForTernaryMixtures/,ilox,learning resource exchange,LRE metadata application profile,LRE

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