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Application filed by Exxon Research Engineering CofiledCriticalExxon Research Engineering Co
Publication of MY106467ApublicationCriticalpatent/MY106467A/en
THE PRESENT INVENTION IS A FLAT STACK PERMEATOR USEFUL UNDER DIALYSIS, ULTRAFILTRATION, REVERSE OSMOSIS, PERSTRACTION, PERVAPORATION, ETC. CONDITIONS. THE PERMEATOR COMPRISES A MULTITUDE OF MEMBRANE LAYER ALTERNATELY SEPARATED BY FEED-RETENTATE SPACERS AND PERMEATE SPACERS. THE LAYERS ARE SECURED ALONG THEIR EDGES SO AS TO DEFINE SEPARATE FEED-RENTENTATE ZONES AND PERMEATE ZONE. THE EDGE GLUING IS PERFORMED SO THAT IN ANY GIVEN LAYER THE TWO PARALLEL EDGES ARE SECURED, WHILE ON THE LAYERS IMMEDIATELY ABOVE AND BELOW THE EDGE PAIRS WHICH ARE SECURED ARE 90O OUT OF REGISTER WITH THE PREVIOUSLY MENTIONED PAIR OF SECURED EDGES. IN THAT WAY ALTERNATE FEED RETENTATE AND PERMEATE ZONES ARE DEFINED WHICH ARE PERPENDICULAR IN FLOW ONE TO THE OTHER. THIS STACK OF MEMBRANE AND SPACER LAYER IS FABRICATED BETWEEN FLAT RIGID, SOLID, NON-PERMEABLE SHEETS, THE MEMBRANE SHEETS IMMEDIATELY ADJACENT TO SAID SOLID SHEETS BEING EDGE GLUED TO THE SHEET ALONG THE PROPER EDGE DEFINING A FEED-RETENTATE OR PERMEATE ZONE AS APPROPRIATE TO FORM A MODULE. THIS MODULE IS FITTED WITH MANIFOLDS TO PROVIDE A FEED-RETENTATE ENTRANCE-EXIT PAIR AND SEPARATE PERMEATE EXITS. ALTERNATIVELY THE MODULE CAN BE INSERTED INTO AN APPROPRIATELY MANIFOLDED PRESSURE VESSEL.(FIG 1)
PROCESS FOR THE SEPARATION OF BIOTECHNOLOGICALLY MANUFACTURED RECYCLING MATERIALS FROM A FERMENTATION BROTH BY CROSS-FLOW MICRO-AND/OR ULTRAFILTRATION.
Dialyser having pairs of membranes between supporting plates - in which plates have rows of ribs providing large number of contact points with membranes
Semipermeable composite membranes esp for fractionation of liquids - with outer polymeric skin active in reverse osmosis or gas permeation and an ultrafiltration membrane
A membranes module device for use in the purification or concentration of impure liquids by reverse osmosis. (Machine-translation by Google Translate, not legally binding)