Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1983-07-06
1988-04-26
Spear, Frank
Liquid purification or separation
Processes
Ion exchange or selective sorption
210799, 210401, B01D 3304
Patent
active
047403110
ABSTRACT:
A mixture containing a viscous oil phase and an aqueous phase is separated by means of an apertured oleophilic endless sieve supported in a separation zone by a revolving cylindrical cage having apertured sidewalls and supported in a recovery zone by a support roller, each section of sieve surface alternately revolves through the separation zone and recovery zone. The mixture is introduced into the rotating cage in the separation zone. The endless sieve partly covers the outside surface of the cylindrical cage sidewall. The mixture tumbles inside of the cage and passes through the cage sidewall apertures to the sieve surface. The oil phase of the mixture is captured by the sieve upon contact and is conveyed out of the separation zone.
In the recovery zone, oil phase is removed from the sieve by squeezing the oil phase on the sieve between two rollers at least one of which is oleophilic. Alternately, the oil phase on the sieve may be heated and, because of its apertured surface, be blown off, shaken off or thrown off the sieve under the influence of an applied force.
REFERENCES:
patent: 3915859 (1975-10-01), Sundin et al.
patent: 4165282 (1979-08-01), Bennett et al.
patent: 4236995 (1980-12-01), Kruyer
patent: 4406793 (1983-09-01), Kruyer
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