Extraction, cross-current

For a cross-current extraction the equation is defined as follows ... 

Single Stage and Cross Current Extraction of Acetic Add from Methylisobutyl Ketone with Water... 

Single Stage and Cross Current Extraction of Acetic Acid from Methyliso utyl Ketone with Water The original mixture contains 35% acetic acid and 65% MIBK. It is charged at 100 kg/hr and extracted with water. 

Figure 1. Batch cross current extraction of Am-Cm from high-level liquid waste with 30% DHDECMP 3M HNOs 25°C organic-to-aqueous phase ratio = L...

If the performance of a single-stage extraction is not adequate, repeated cross-current extractions can be carried out to increase solute recovery or removal. For this configuration, the reduction factor is given by... 

The cross-current extraction process is an ideal laboratory procedure since the extract and raffinate phases can be analyzed after each stage to generate equilibrium data as well as to achieve high solute removal. If the distribution coefficient, as well as the ratio of extraction solvent to feed solvent (S IF ), are constant and the fresh... 

Multistage cross-current extraction may be operated continuously or stagewise. In continuous cross-current extraction (Fig. 6-12), the mixture F to be separated is fed into the first stage where it is treated with the solvent Lj, From this extraction a raffinate and an extract E are obtained. 

Fig. 6-13. Raffinate and extract compositions in cross-current extraction.

Fig. 6-14. Operating diagram of a cross-current extraction cascade with three stages.

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