Abstract: Apparatus for separating feed solution, such as chrome or nickel plating rinse solutions, into a concentrated liquor portion and a solvent portion, comprising vertical shell and tube evaporator means for generating a stream of vapor and entrained droplets; first impingement means for separating a first liquor portion from the stream; second impingement means for separating a second liquid portion from the stream; mesh entrainment pad means for separating a third liquor portion from the stream to form a stream consisting essentially of pure solvent vapor; reduced pressure generating means for drawing the stream from the evaporator tubes through the impingement and mesh entrainment pad; capacitance means for accumulating a preselected volume of the first, second, and third liquor portions above the lower end of the evaporator; and conduit means for recycling liquor from the capacitance means to the evaporator means.