Mass Transfer
Solvent extraction is the terminology applied to the liquid-liquid extraction, which is preferred for the separation of the components of liquids, when

One of the liquid components is heat sensitive
One of the liquid components has very high affinity towards the solvent
Extracting solvent is cheaply & abundantly available
Viscosity of liquid components is very high

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Mass Transfer
For a ternery mixture, in which equilateral triangular co-ordinate is used in leaching and extraction, a __________ of the equilateral triangular co-ordinates.

Binary mixture is represented by the apex
Ternery mixture is represented by the sides
Binary mixture is represented by any point inside
Pure component is represented by the apex

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