Separation of acetone from water by using MIBK.
A stream containing 30 wt% acetone and the balance water is to be separated by extraction with methyl isobutyl ketone. 100 kg of acetone-containing stream is to be mixed with pure MIBK and the mixture allowed settling and separating. How much MIBK must be used if the final acetone concentration in the water-rich phase is 5 wt%?
Mass of MIBK used = ________kg