Characteristics and constraints of an industrial system
Liquid-liquid extraction General presentation

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Characteristics and constraints of an industrial system


Liquid-liquid extraction General presentation

Author : Gérard COTE

Publication date: June 10, 2017, Review date: October 1, 2020 | Lire en français

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5. Characteristics and constraints of an industrial system

Liquid-liquid extraction generally performs at least one of the following three functions:

  • separation of solutes initially present in a complex mixture into two groups;

  • concentration of a particular solute ;

  • advanced purification of a given chemical compound.

Industrially, depending on the application, one of these three functions is decisive. The most economical implementation on an industrial scale is to implement a methodical countercurrent extraction system as shown in figure 8 , with each stage comprising several theoretical stages, and each flow circulating continuously

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