Liquid purification or separation – Processes – Separating
Patent
1994-04-11
1996-06-25
Warden, Jill
Liquid purification or separation
Processes
Separating
210806, 2101951, 210187, 134 10, B01D 1712, C02F 100, C02F 900
Patent
active
055297021
ABSTRACT:
The present invention entails a method and a system for continuously removing oil from the cleaning solution being utilized in a tank for cleaning parts and particularly removing oil from parts prior to an electrocoating operation. Oil containing cleaning solution is pumped to a smaller oil removing tank where the cleaning solution is subjected to a cooling operation. Once the cleaning solution within the oil removing tank is cooled to a certain level, the oil bonded with the surfactant portion of the cleaning solution is separated and removed through a gravity removal process. This process is continuous as the cleaning solution from the parts cleaning tank is continuously circulated through the oil removing tank where oil is effectively stripped or removed from the cleaning solution before it is returned back to the parts cleaning tank.
REFERENCES:
patent: 1612557 (1926-12-01), Weisgerber
patent: 1702612 (1929-02-01), Morse
patent: 3054602 (1962-09-01), Proudman
patent: 3364893 (1968-01-01), Maddock
patent: 3450086 (1969-06-01), Maddock
patent: 3749246 (1973-07-01), Hargraves
patent: 4048063 (1977-09-01), Cheng
Segrave Thomas J.
White William D.
American Coating Technologies Inc.
Chaudhry Saeed
Warden Jill
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