Estimate the diameter and the HETS of a Karr column to extract acetic acid from water using isopropyl ether for the conditions and data of Problem 7.21.

Data From Problem 7.21:-

Acetic acid is to be extracted from a dilute aqueous solution with isopropyl ether at \(298 \mathrm{~K}\) in a countercurrent cascade of mixer-settler units. In one of the units, the following conditions apply:

If the raffinate is the dispersed phase and the mixer residence time is \(2.5 \mathrm{~min}\), estimate for the mixer:

(a) The dimensions of a closed, baffled vessel.

(b) The diameter of a flat-bladed impeller.

(c) The minimum rate of rotation of the impeller.

(d) The power requirement of the agitator at the minimum rate of rotation.

Transcribed Image Text:

Raffinate Raffinate Flow rate, kg/s Density, kg/m 2.646 6.552 1017 726 Viscosity, cP Interfacial tension = 0.0135 N/m 1.0 0.5