Liquid purification or separation – Plural distinct separators – Filters
Patent
1974-06-17
1976-01-20
Spear, Jr., Frank A.
Liquid purification or separation
Plural distinct separators
Filters
210433, B01D 3100
Patent
active
039336476
ABSTRACT:
An apparatus for the separation of liquid mixtures by means of permselective separation membranes, comprising at least one separation module composed of a distributor plate, a collector plate and an intermediate situated separation membrane. The distributor plate is provided at the region of the effective membrane surface with at least one throughpassage opening arranged at the periphery thereof for the mixture to be separated and at least one open flow channel extending from said throughpassage opening towards the center of the membrane. The flow channel is arranged such that the mixture along one face of the membrane is subjected to a turbulent flow for the successive flushing of the membrane surface. The membrane is provided with an axial throughflow opening into which opens the flow channel. The collector plate is provided with an axial bore, a substantially ring-shaped recess arranged opposite the flow channel, a highly porous carrier element arranged in the ring-shaped recess for substantially uniformly supporting the membrane at a discharge side thereof, and at least one collecting channel leading from the periphery of the ring-shaped recess towards the outside. The carrier element is pressure resistant and highly porous to an extent sufficient to allow for a rapid unhindered flow-off of the permeate which flows through and out of the membrane via the ring-shaped recess to the collecting channel without any appreciable pressure drop and at the same time opposing any bending-through of the membrane. There are also provided sealing means provided at the distributor plate and the collector plate for sealing the flow channel and the ring-shaped recess at the center and at the periphery of the membrane from one another and from the surroundings against high pressure and vacuum.
REFERENCES:
patent: 3348833 (1968-08-01), Marks et al.
patent: 3398834 (1968-08-01), Huttall et al.
patent: 3400825 (1968-09-01), Shippey
patent: 3456805 (1969-07-01), Jarvis et al.
patent: 3556302 (1971-01-01), Agranat
patent: 3560377 (1971-02-01), Loeffler
patent: 3623610 (1971-11-01), Olsen et al.
Louis Schleiffer AG
Spear, Jr. Frank A.
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