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Homework Help: How can we draw the phase envelope inside the ternary system

  1. May 24, 2016 #1
    1. The problem statement, all variables and given/known data
    I need to determine the minimum solvent and number of stages in an extraction process. What I need to do first is drawing the phase envelope (miscibility gap curve) inside the ternary system triangle diagram. I am given the equilibrium values of A,B and S (solvent) in both raffinate and extract phases.

    2. Relevant equations

    3. The attempt at a solution
    All examples I have the triangle is given with the curve inside in the first place. So I couldn't figure out how to draw it but I know I need it first I guess. I tried to draw it with raffinate and extract graph next to it but failed to do that.
  2. jcsd
  3. May 29, 2016 #2
    Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
  4. Jun 11, 2016 #3
    Thanks for your courtesy. Actually I figured out how to draw it. It was simply determining the equilibrium points inside the triangle by parallel lines. Maybe it was something too complex to ask it here because it is hard to demonstrate drawing it.
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