Distillation: apparatus – Apparatus – Systems
Patent
1990-07-12
1992-04-07
Manoharan, Virginia
Distillation: apparatus
Apparatus
Systems
68 18C, 68 18F, 134107, 134108, 134111, 134184, 159 32, 159 473, 159901, 202182, 2021851, 202200, 202202, 202205, 203 94, 203 98, 203DIG14, B01D 310
Patent
active
051025043
ABSTRACT:
A device for solvent recovery in an ultrasonic cleaning machine is based on utilization of the negative pressure originating from the liquification of the solvent vapor itself in a heat exchanger and the negative pressure from an ejector. Thus, the solvent vapor in a vapor zone is led out of a distillation vessel, cooled outside of the vessel, liquidfied, once again returned to a solvent vessel and, at the same time, the liquification of the solvent vapor which is incompletely liquified from this cooling and liquification process is accelerated even more in the negative pressure section of the ejector. Accordingly, the amount of water mixed into the recovered solvent is extremely reduced so that satisfactory cleaning in the ultrasonic cleaner can be ensured.
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Manoharan Virginia
Ohlandt John F.
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