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[trevortnt]

Hi everyone, as you may know I'm resitting some exams including Separation Processes which I'm quite stuck with. My problem is when the liquids involved are partly miscible and the use of a triangular diagram is required, which I'm trying to learn from scratch. E.g. A and B are partially miscible and C is completely soluble in both. Here is typical question which I'm stuck with.

1. A solution of acetic acid and water containing 30% by weight acid is to be contacted with isopropyl ether in a batch-run mixer/settler unit. The unit is charged with 100 kg of the acetic acid/water mixture and 40kg of the isopropyl ether, agitated until equilibrium is reached, then allowed to settle. Determine:

i) the weights and composositions of the extract and raffinate phases formed.
ii) the free weight and composition of the extract and raffinate phases.

The equilibrium distributuion information is then given to me to construct a triangular diagram.

Can someone please talk me through how to attempt a question like this because I'm really struggling with the diagram already.
Any advice will be appreciated.

Edited by christo7, 20 August 2009 - 08:23 PM.

[MrShorty]

My impression is that you are having trouble with the triangle diagram. Exactly where are you stuck in generating the diagram? What specifically are you having trouble with?