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In a pilot - plant study, for every 1 0 0 k g of acetone - water of 5 0 % acetone and 5 0

In a pilot-plant study, for every 100kg of acetone-water of 50% acetone and 50% water fed to the first extraction stage, 100kg of MIBK (methylene isobutyl ketone) is fed to the first stage and 75kg is fed to the second stage. The extract from the first stage is found to contain 27.5wt% acetone. The second-stage raffinate has a mass of 43.1kg and contains 5.3% acetone, 1.6% MIBK, and 93.1% water, and the second-stage extract contains 9.0% acetone, 88.0% MIBK, and 3.0% water. The Raffinate stream from the first extraction stage is fed into the second extraction stage. The extract stream from the two extraction is mixed by a mixer before fed as a feed into a distillation column. The overhead product from the distillation column contains 2.0%MIBK,1.0% water, and the balance acetone. Taking a basis of calculation of 100kg acetone-water feed, sketch the process diagram and calculate the unknown compositions and flow rates.

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