In single Leaching process of oil from seeds with hexane as solvent. $100kg$ of seeds containing $22wt\%$ oil and the solvent$-$ is $80kg$ containing $2wt\%$ oil. The value of $N$ for slurry under flow is essentially constant at $1\mathrm{.}5kg$ insoluble solid$/$kg solution.

$1-$ Draw a single leaching process and label on it all given a required streams.

$2-$ Draw N$-$X$-$Y phase diagram assuming perfect separation to calculate the amount and composition of overflow $(R.x_R)$ and the under flow slurry $($E $($:$x_E$