For dimethylformamide(DMF)recovery use two packed(column1:K1 ) and valve tray(column 2: K2) columns, feed(40 H2O/60 DMF)SEND TO K1 and bottom outlet of k1 about 25%H2O and 75%DMF send to evaporator and vapour of DMF70%/H2O 30% feed to k2 the bottom of this column is 99.95% DMF AND THE TOP OUTLET...