From 2,000 kg/h of a mixture of acetic acid and water with 45% acetic acid, the acetic acid must be extracted using a multi-step cross-flow extraction at an operating temperature of 20C. Isopropyl ether does not contain acetic acid, consider that the ratio of solvent to feed is S/Fs= 1, where Fs= F(1-XCF ). 50 pts

Amount of solvent used.

Determine the number of stages.

Determine the flows and currents leaving each stage.

Diagram and procedure. The Balance data are:

\begin{tabular}{|c|c|c|c|c|c|} \hline \multicolumn{3}{|c|}{ Extract } & \multicolumn{3}{|c|}{ Refined } \\ \hline Aceticacid & Water & isopropilether & Aceticacid & water & isopropileter \\ \hline .002 & .005 & .993 & 0.007 & 0.981 & 0.012 \\ \hline .004 & .007 & .989 & 0.014 & 0.971 & 0.015 \\ \hline .008 & .008 & .984 & 0.029 & 0.955 & 0.016 \\ \hline .019 & .010 & .971 & 0.064 & 0.917 & 0.019 \\ \hline .048 & .019 & .933 & 0.133 & 0.844 & 0.023 \\ \hline .114 & .039 & .847 & 0.255 & 0.711 & 0.034 \\ \hline .216 & .069 & .715 & 0.367 & 0.589 & 0.044 \\ \hline .311 & .108 & .581 & 0.443 & 0.451 & 0.106 \\ \hline .362 & .151 & .487 & 0.464 & 0.371 & 0.165 \\ \hline \end{tabular}