TWOEX - Two-Solute Batch Extraction with Interacting Equilibria

2 TWOEX - Two-Solute Batch Extraction with Interacting Equilibria 

This example considers the interactions involved in multicomponent extraction as shown in Sec. 3.3.1.2 and takes the particular case of a single batch extractor with two interacting solutes. 

Two solutes distribute between the phases as concentrations X] and Yj, and Wi and Z] respectively. The respective equilibrium concentrations Ei and E2 are each functions of Y] and Z  

It is necessary to write the dynamic equations for each solute in each phase. 

As in example BATEX, the constants Ki and K2 contain the mass transfer coefficient, the specific interfacial area and the total liquid volume. 

Two solutes, A and B, distribute between the feed and solvent phases as concentrations Xa and Ya, and X and Yb, respectively. 

The respective equilibrium concentrations, Xa and X b, are functions of both solute concentrations, where  

Solute concentration in the solvent phase Mass transfer capacity coefficient 

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