Question

Would it be better to perform an extraction once with a large quantity of extracting solvent or many times with smaller amounts of extracting solvent? Explain.

Answer 1

The figure shows that several extractions with small vol- umes of solvent are significantly more advantageous than one extraction with a large volume only for intermediate values of the arti it ion coefficient (K= 0.05-20)..

Usina aen- era1 principle's of function analysis it can be shown thacthe maximum for~,.lo~... ccurs atK= 1.793.1.937. and 2.000 for