Triangular diagrams conjugate lines

Liquid extraction exhibits at least two common forms on the triangular diagram. Figure 7.3-2b shows both type 1 and type H systems, the former being characterized by the plait point. In type I systems, die tie lines linking equilibrium phases shrink to a point at the plait point, so that the two conjugate phases become identical. 

Find the saturated extract, saturated raffinate, and conjugate lines on a right-triangular diagram. 

Table 7.1 presents equilibrium extraction data obtained by Alders (1959) for the system water-chloroform-acetone at 298 K and 1 atm. Plot these data on a right-triangular diagram, including in the diagram a conjugate or auxiliary line that will allow graphical construction of tie lines. 

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