Liquid purification or separation – Constituent mixture variation responsive – With membrane
Patent
1974-11-22
1976-06-22
Hart, Charles N.
Liquid purification or separation
Constituent mixture variation responsive
With membrane
159 27A, 159 31, 159 44, 202200, 210 71, 210 73R, 210110, 210182, 210258, B01D 112
Patent
active
039650057
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. The apparatus includes a shell and tube evaporator and an especially efficient impingement member, and the process steps for operating said apparatus to separate feed solution into an essentially pure solvent such as distilled water and a liquor of a preselected concentration are described.
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Boyd, Jr. Lawrence C.
Kelm Everett F.
Randall John C.
Corning Glass Works
Hart Charles N.
McNaughton Thomas J.
Mukai Robert G.
Patty, Jr. Clarence R.
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