| Patents for B01D 61 - Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor (28,150) |
|---|
| 08/20/1991 | US5041227 Continous recycling of extractant |
| 08/20/1991 | US5041215 Dialysis unit priming |
| 08/15/1991 | WO1991012072A1 Separation by carrier mediated transport |
| 08/15/1991 | CA2076041A1 Separation by carrier mediated transport |
| 08/14/1991 | WO1991012071A1 Method and apparatus for separating solid matter from a suspension thereof in a liquid carrier by electrophoretic deposition |
| 08/14/1991 | EP0441175A2 Process and apparatus for purifying, recovering and recycling hot aqueous degreasing baths and spray washers |
| 08/14/1991 | EP0327572B1 Recovery of acids from materials comprising acid and salt |
| 08/14/1991 | EP0304427B1 Process for dephenolating waste water from coking plants |
| 08/14/1991 | CA2075817A1 Method and apparatus for electrophoretically separating solid particles suspended in a liquid medium |
| 08/14/1991 | CA2036160A1 Process for the purification of solutions or suspensions of polyorganophosphazene by use of membranes |
| 08/13/1991 | US5039609 low molecular weight peptides in aqueous solution; from enzymatic hydrolysis of proteins, purity, controlled concentration |
| 08/13/1991 | US5039418 Membrane made from a multi-block polymer comprising an oxazolidone prepolymer chain extended with a compatible second prepolymer and its use in separations |
| 08/13/1991 | US5039416 Process for the purification of industrial waste-waters |
| 08/13/1991 | US5039411 Fluid purifying apparatus and method of purifying fluids |
| 08/13/1991 | US5039386 Electrophoretic method for preparative separation of charged molecules in liquids |
| 08/13/1991 | CA2036122A1 Process for dehydration of gases and composite permeable membranes therefor |
| 08/11/1991 | CA2035360A1 Multilayer membrane and process of manufacturing the same |
| 08/08/1991 | WO1991011248A1 Sealing frame for a stack of membranes |
| 08/08/1991 | WO1991011245A1 Modular device for collecting, incubating and filtering of multiple samples |
| 08/08/1991 | DE4004153C1 Multilayered membrane with high sepn. performance - comprises carrier layer of polyamide, polyvinylidene-di:fluoride polyester or glass fibres porous supply and PVA sepn. layer |
| 08/08/1991 | DE4003543A1 Verfahren zur abreicherung von viren in loesungen und zur bestimmung der abreicherungsrate von viren Method for depleting viruses in loesungen and determination of the depletion rate of virus |
| 08/08/1991 | CA2009616A1 Method of producing carbonic acid salts of alkali metals |
| 08/07/1991 | EP0439905A1 Separation of furfural/middle distillate streams |
| 08/07/1991 | EP0439877A1 Process for separating gases |
| 08/07/1991 | EP0439770A2 Process for removing harmful substances and recovering valuable substances from a coking plant waste water stream |
| 08/07/1991 | EP0439636A1 Alkali metal (hydrogen) carbonate production process |
| 08/06/1991 | US5037610 Filling hollow fiber micropores with a blend of silicone rubber and silicone oil |
| 08/06/1991 | US5037556 Controlling the pressure over a polyimine membrane which has been crosslinked with a polyisocyanate or a polycarbonyl chloride |
| 08/06/1991 | US5037547 Dual stage filter cartridge for a reverse osmosis purification system |
| 08/01/1991 | DE4002295A1 Dichtungsrahmen fuer membranstapel Gasket for membrane stack |
| 07/31/1991 | EP0438790A1 Process for the separation and the concentration of gallium from an aqueous solution containing gallium together with aluminium, zinc and/or copper |
| 07/31/1991 | EP0438722A1 Dynamic membrane separation process for improved selectivity |
| 07/31/1991 | EP0438595A1 Jig and device for filtration |
| 07/31/1991 | EP0394265A4 Method for size separation of particles |
| 07/31/1991 | CN1053413A Process and apparatus for treadment of brines and contaminated mineral salts or mixtures thereof |
| 07/31/1991 | CA2034078A1 Serial crossflow filtration assembly |
| 07/30/1991 | US5035799 Filter assembly |
| 07/30/1991 | CA1287015C Process for the production of dichlorohydrin |
| 07/30/1991 | CA1286865C Porous liquid polytetrafluoroethylene membrane with hydrophobic and hydrophilic surfaces |
| 07/25/1991 | WO1991010622A1 Water purifier |
| 07/25/1991 | WO1991010500A1 Method for recovering coating slip waste |
| 07/25/1991 | DE4027531C1 Filter for sterilising aq. soln. e.g. dialysis liq. - where incoming liq. flows between 1st antechamber, and fibre interiors into 2nd antechamber |
| 07/25/1991 | DE4012144C1 Overflow water treatment from coking plants - uses reverse osmosis plant and is carried out without removal of ammonia |
| 07/25/1991 | DE4001851A1 Treating hot aq. degreasing liq. for reuse |
| 07/25/1991 | DE3941133A1 Device for recovering energy in reverse osmosis systems - uses throttle valve in retentate line replace by pump coupled to feed pump with smaller delivery rate |
| 07/24/1991 | EP0483143A4 Membrane affinity apparatus and purification methods related thereto. |
| 07/24/1991 | EP0438372A2 Reverse osmosis system |
| 07/24/1991 | EP0438369A2 Process for the isolation and purification of free iminodiacetic acid, starting from it's salt, by elektrodialysis |
| 07/24/1991 | EP0437749A2 Reduced alcohol spirits |
| 07/24/1991 | EP0425491A4 Reversible mechanochemical engines comprised of bioelastomers capable of modulable inverse temperature transitions for the interconversion of chemical and mechanical work |
| 07/23/1991 | US5034134 Purification of ethylene glycol-water streams by passing through a membrane |
| 07/23/1991 | US5034121 Apparatus for preparing a machining liquid of an electroerosion machine |
| 07/23/1991 | US5034111 Compressive and electro-osmotic dehydrator |
| 07/23/1991 | CA1286612C Process for the separation of solvents from hydrocarbons dissolved in said solvents |
| 07/23/1991 | CA1286578C Test plate assembly defining discrete regions on a microporous membrane with low boundary distortion |
| 07/20/1991 | WO1991010621A1 Process for separating and concentrating gallium from an aqueous solution containing gallium, together with aluminium, zinc and/or copper |
| 07/20/1991 | CA2072761A1 Process for separating and concentrating gallium from an aqueous solution containing gallium, together with aluminum, zinc and/or copper |
| 07/20/1991 | CA2034351A1 Process for the isolation and purification of free acids, starting from their salts, by electrodialysis |
| 07/19/1991 | CA2025028A1 Separation of furfural/middle distillate streams |
| 07/17/1991 | CN1053046A Separation method and separating agent |
| 07/17/1991 | CA2025978A1 Reduced alcohol spirits |
| 07/16/1991 | US5032679 Heparin fragments as inhibitors of smooth muscle cell proliferation |
| 07/16/1991 | US5032281 Separating membrane and separation method |
| 07/16/1991 | US5032279 Separation of fluids using polyimidesiloxane membrane |
| 07/16/1991 | US5032278 Using a crosslinked polyethylenimine membrane; maintaining pressure drop |
| 07/16/1991 | US5032268 Self-contained canister unit for filtering tap water |
| 07/16/1991 | CA1286104C Dehydration method and dehydration system |
| 07/11/1991 | WO1991009667A1 Separation method and device using tangential microfiltration, reverse osmosis, or two-stage ultrafiltration |
| 07/10/1991 | EP0436288A2 Membrane system and process for concentrating organic oxygenates |
| 07/10/1991 | EP0436128A1 Composite membranes for separating water from organic compounds containing fluids |
| 07/10/1991 | EP0436098A2 Process for degassing purified water obtained by reverse osmosis and reverse osmosis system for carrying out said method |
| 07/10/1991 | EP0435944A1 Water purifying system |
| 07/10/1991 | EP0435931A1 Osmotic absorbents |
| 07/09/1991 | US5030356 Process for recovering organic components from liquid streams |
| 07/09/1991 | US5030355 Polyurethane and/or polyurea alloys; separating aromatics |
| 07/03/1991 | EP0434671A1 Liquid separator |
| 07/03/1991 | EP0397742A4 Porous article impregnation resin composition, and system for treating impregnation process waste water |
| 07/03/1991 | CA2020533A1 Separation of compositions containing water and organic oxygenates |
| 07/02/1991 | US5028526 Applying to a membrane which allows plasma to pass through and retains the particles |
| 07/02/1991 | US5028436 Membrane preparation and process for separating the dissolved and undissolved constituents of milk |
| 07/02/1991 | US5028337 Coated membranes |
| 07/02/1991 | US5028336 Raising the pH to form an alkalized aqueous charge liquid containing dissolved electrolytes, filtering, recovering retentate |
| 07/02/1991 | US5028319 Apparatus for the preparation of machining liquid for an electroerosion machine |
| 07/02/1991 | US5027735 Kasipagan sail boat |
| 06/28/1991 | WO1991009828A1 Treatment of impurity-containing liquid streams in ethylene oxide/glycol processes with semi-permeable membranes |
| 06/28/1991 | CA2048624A1 Treatment of impurity-containing liquid streams in ethylene oxide/glycol processes with semi-permeable membranes |
| 06/27/1991 | WO1991008782A1 Disposable filter and separation method using this filter |
| 06/26/1991 | EP0434342A1 Selective separation of multi-ring aromatic hydrocarbons from distillates by perstraction |
| 06/26/1991 | EP0434219A1 Hollow fiber bundle element |
| 06/26/1991 | EP0433893A2 Process and system for purifying pure water or ultrapure water |
| 06/26/1991 | EP0433885A2 Process for fractionating milk or milk products |
| 06/25/1991 | US5026465 Electrodeionization polarity reversal apparatus and process |
| 06/23/1991 | WO1991009666A1 Process for non-polluting spray painting with a dispersion of oven-drying paint in water |
| 06/23/1991 | CA2032916A1 Dynamic membrane separation process for improved selectivity |
| 06/20/1991 | DE4106080A1 Automatically controlling substance concn. in liq. leaving dialyser - by automatically varying differential pressure between the liquid and the dialysate |
| 06/20/1991 | DE3941431A1 Procedure and plant for disposal of refuse dump gas and seepage water - gas is burnt and seepage water cleaned by reverse osmosis |
| 06/20/1991 | DE3940520A1 Process for the selective enrichment - of transient materials within a fluid mixt. |
| 06/20/1991 | CA2031163A1 Selective separation of multi-ring aromatic hydrocarbons from distillates by perstraction |
| 06/19/1991 | EP0433200A1 Water filtration and purification process |
| 06/19/1991 | EP0432358A1 Treated composite polyamide membranes to separate concentrated solute |