Compute the weight of water removed i the evaporator

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Reference no: EM13256376

Potassium chromate (K2CrO4) is manufactured in a process in which 1.25 kg/s of a solution that is 33.3wt% K2CrO4 in the fresh feed stream is mixed with a recycle stream containing 36.36% K2CrO4, and the combined stream is fed to an evaporator. The concentrated stream that leaves the evaporator is 49.4% K2CrO4; this stream is fed to a crystallizer in which it is cooled (causing crystals of K2CrO4 to come out of the solution) and then filtered. The filter cake consists of K2CrO4 crystals and a solution that contains 36.36wt% K2CrO4. The crystals formed account for 95% of the mass of the total filter cake. The solution that passes through the filter, also 36.36wt% K2CrO4, is the recycle stream. Calculate the weight of water removed i the evaporator, the rate of production of crystalline K2CrO4, the ratio (kg recycle)/ (kg fresh feed), and the feed rates that the evaporator and the crystallizer must be designed to handle.

Reference no: EM13256376

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