ABSTRACT
The terms leaching and extraction are used to describe the
transfer of a solute from one phase to another. When the
term leaching is used, the source of the solute or product to
be recovered is usually a solid. Extraction may refer to a
solute being removed from either a solid or a liquid. This
treatment of the design of extraction systems includes both
solids and liquids as sources of solutes to be extracted.
There are many books that provide additional information
on the design of extraction systems.[1-5]
