An aqueous acetone solution is fed at a rate of 32.0lb_m /h to a stirred tank. A stream of pure methyl isobutyl ketone is also fed to the tank, and the resulting mixture is sent to a settler operating at 25°C.

One of the phases formed has a flow rate of 41.0lb_m/h and contains 70 wt% MIBK. Use Figure 6.6-1 to determine the flow rate and composition of the second product stream and the rate at which MIBK is fed to the unit.