1. A solvent-based separation is required to recover a natural pharmaceutical from an herb using a continuous process. The concentration of the pharmaceutical the x-phase is 12 % (w:w) and the flow rate of the x-phase is 800 kg/hr, and the desired recovery is 92 %.
The partitioning of (pharmaceutical) between phases (x) and (y) is described by the following:
If the x-phase phase and solvent are immiscible, what is the minimum flow rate of solvent?
N.B. This system is not dilute.
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