| 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) |
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| 06/19/1991 | EP0432265A1 Ultra-pure water supply piping arrangement apparatus |
| 06/19/1991 | EP0207100B1 Process for changing the effective pore size of a structure |
| 06/19/1991 | CN1012897B Electric infiltration technology and apparatus for extracting lactic acid |
| 06/19/1991 | CN1012879B Improved composite separation membranes and preparation and use thereof |
| 06/18/1991 | US5024937 Reduced fouling of membrane with oil-based liquid foam inhibitor |
| 06/14/1991 | CA2022612A1 Treated composite polyamide membranes to separate concentrated solute |
| 06/12/1991 | EP0431593A2 Separation method and separating agent |
| 06/12/1991 | EP0430939A1 Axial control valve |
| 06/11/1991 | US5022996 Method of separating organic contaminants from fluid feedstreams with polyphosphazene membranes |
| 06/09/1991 | WO1991008778A1 Membranes for absorbent packets |
| 06/09/1991 | CA2069487A1 Membranes for absorbent packets |
| 06/08/1991 | CA2031599A1 Separation method and separating agent |
| 06/06/1991 | DE3939867A1 Composite membrane for sepn. of water from fluid mixts. - contg. organic components by pervaporation has sepn. layer of polyvinyl alcohol post- crosslinked by acid in vapour phase |
| 06/06/1991 | DE3939841A1 Composite membrane for sepn. of water from aq. amine solns. - has sepn. layer of polyvinyl alcohol post-crosslinked by acid in vapour phase |
| 06/02/1991 | WO1991008043A1 Composite membrane for separating water from fluids containing organic compounds by pervaporation |
| 06/02/1991 | CA2046332A1 Composite membrane for separating water from fluids containing organic compounds by pervaporation |
| 05/29/1991 | EP0428676A1 Management of parameters relating to a dialysis treatment. |
| 05/28/1991 | US5019666 Non-porous polycarbonate membranes for separation of aromatics from saturates |
| 05/28/1991 | US5019264 Multilayer reverse osmosis membrane of polyamide-urea |
| 05/28/1991 | US5019252 Portable water purifier |
| 05/28/1991 | CA1284462C Method for gas separation |
| 05/23/1991 | DE3938245A1 Liq. filtration by fine mobile magnetic particles layer - subject to variable field and periodically transformed for regeneration |
| 05/22/1991 | EP0428295A1 Removal and identification of complex charged entities |
| 05/22/1991 | EP0428022A1 Process for eliminating water from a mixture containing water, carbondioxide and amine |
| 05/22/1991 | EP0427897A1 Separation of gases |
| 05/22/1991 | EP0427840A1 Device for electrokinetic desalination of brickwork. |
| 05/22/1991 | CN1051519A Improved membrane seporation system and method of operation |
| 05/21/1991 | US5017480 Process for recovering L-amino acid from fermentation liquors |
| 05/21/1991 | US5017292 Permselective |
| 05/21/1991 | US5017291 Filtration |
| 05/21/1991 | US5017284 Fluid purifying apparatus and method of purifying fluids |
| 05/21/1991 | CA1284309C Electrodialytic recovery of mixed acids from mixed salts including fluoride anion |
| 05/15/1991 | EP0427569A2 Multi-concentration disposable liquid concentrating device |
| 05/15/1991 | EP0427452A2 Process for separating a charge containing dewaxing solvent and dewaxed oil |
| 05/15/1991 | EP0427376A2 Membrane separation system and method of operation |
| 05/15/1991 | EP0427338A1 Process for the separation of solvents from hydrocarbons dissolved in said solvents |
| 05/15/1991 | EP0427099A1 Process for microfiltration |
| 05/15/1991 | EP0427079A2 Semipermeable polyetherketone membrane |
| 05/15/1991 | CN1051392A Method for increasing the rate of extraction of glutamic acid fermenting liquid using ultrafiltration of separating film |
| 05/15/1991 | CN1051337A Method for desalination of electrolyte aqueous solution and electrodialyzer |
| 05/14/1991 | US5015458 Method for purifying sulfuric acid solutions |
| 05/14/1991 | US5015388 A microporous membrane sheet for filtration and a means for evacuation |
| 05/14/1991 | US5015386 Separation of electrolytes with reverse-osmosis membranes |
| 05/14/1991 | US5015374 Closure cap for dialyzers |
| 05/14/1991 | US5015351 Electroosmosis, impressing a current, effecting a time controlled transition |
| 05/11/1991 | CA2029567A1 Process for the separation of solvents from hydrocarbons dissolved in said solvents |
| 05/09/1991 | CA2029030A1 Process for treating a charge containing dewaxing solvent and dewaxed oil |
| 05/09/1991 | CA2020631A1 Membrane separation system and method of operation |
| 05/08/1991 | EP0426649A1 Process for the stepwise electrodialysis of alkali sulfate-containing aqueous solutions and apparatus for carrying out the process |
| 05/08/1991 | EP0425893A1 Process for the separation of a mixture of 1-methoxy-2-propanol and water into its components |
| 05/08/1991 | EP0425491A1 Reversible mechanochemical engines comprised of bioelastomers capable of modulable inverse temperature transitions for the interconversion of chemical and mechanical work. |
| 05/08/1991 | CN2076442U Electric dialyzer |
| 05/08/1991 | CA2029387A1 Semipermeable membrane made from polyether ketones |
| 05/07/1991 | US5013447 Process of treating alcoholic beverages by vapor-arbitrated pervaporation |
| 05/07/1991 | US5013436 Production of low-ethanol beverage by membrane extraction |
| 05/02/1991 | WO1991005600A1 Filter device with radial and axial flow subassemblies |
| 05/02/1991 | WO1991005599A1 Process for making aqueous dispersions |
| 05/02/1991 | EP0425108A2 Dehydration of organic oxygenates |
| 05/02/1991 | EP0424439A1 Apparatus and method for the autotransfusion of blood. |
| 05/01/1991 | CN1051063A Continuous treatment system of waste paper pulp liquors |
| 04/30/1991 | US5012036 Polyarylate membranes or aromatics/saturates separation (C-2415) |
| 04/30/1991 | US5012035 Polyphthalatecarbonate membranes for aromatics/saturates separation |
| 04/30/1991 | US5011607 Hemodiafiltration system |
| 04/30/1991 | CA1283625C Multicompartment cell with inner membrane tubes and end closures |
| 04/24/1991 | EP0424118A2 Hardened saccharinic gum formed-in-place membranes |
| 04/24/1991 | EP0424041A2 Membranes obtained from copolymers of polyimides and aliphatic polyesters. |
| 04/24/1991 | EP0424040A2 Membranes obtained from crosslinked copolymers of aliphatic polyesters diols and dianhydrides. |
| 04/24/1991 | EP0424039A1 Separation of mixtures of aromatics and saturates |
| 04/24/1991 | EP0423949A2 Membrane process for separation of organic liquids |
| 04/24/1991 | EP0423857A1 Process for making a channel plate with paralleled plates, device for carrying out the process |
| 04/24/1991 | CN2075539U Mother baby super filter |
| 04/24/1991 | CN2075538U Nonpolarity water all-automatic control electric dialyzer |
| 04/24/1991 | CN2075537U Composite membrane super-filter |
| 04/24/1991 | CA2026660A1 Dehydration of organic oxygenates |
| 04/23/1991 | US5009789 Filtration and reuse of urea-formaldehyde, melamine-formalde-hyde and polyamidoamine-epichlorohydrin resins |
| 04/23/1991 | US5009783 Curable blend of porous polysulfone support with layer of polyvinyl alcohol and polyacrylic acid |
| 04/23/1991 | US5009780 Multi-well filtration apparatus |
| 04/23/1991 | US5009777 Reverse osmosis and hot water system |
| 04/23/1991 | US5009758 Closed noncontinuous electrodeposition painting system |
| 04/18/1991 | WO1991005576A1 Transmembrane pressure controlled filtration system |
| 04/18/1991 | WO1991004782A1 Method and electrodialyzer for removing salts from an electrolytic aqueous solution |
| 04/18/1991 | CA2067236A1 Transmembrane pressure controlled filtration system |
| 04/17/1991 | EP0422453A2 Process for purifying water |
| 04/17/1991 | EP0422304A1 Thermally crosslinked nitrile rubber membranes, their preparation and use for aromatics separation |
| 04/17/1991 | CA2026895A1 Polyester membranes for aromatics/saturates separation |
| 04/17/1991 | CA2026894A1 Crosslinked copolymers of aliphatic polyester diols and dianhydrides |
| 04/17/1991 | CA2020532A1 Membrane process for separation of organic liquids |
| 04/16/1991 | US5008189 Flowing stream over membrane and through channel under specific conditions of viscosity, velocity, and channel height |
| 04/14/1991 | CA2027527A1 Process for the preparation of aqueous dispersions |
| 04/11/1991 | DE4021123A1 Cross-flow membrane filtration of cells from liq. - which is propelled by gas pressure from alternately operated containers |
| 04/10/1991 | EP0421916A2 Composite membranes and processes using them |
| 04/10/1991 | EP0421676A1 Interfacially polymerized membranes, and reverse osmosis separation of organic solvent solutions using them |
| 04/10/1991 | EP0421399A1 Method of treating fluoride-containing water |
| 04/10/1991 | EP0420847A1 Membrane filtration apparatus and method of making a membrane filtration unit |
| 04/09/1991 | US5006576 Ion exchange membrane |
| 04/09/1991 | US5006257 Extracts of thermal waters and their applications |
| 04/09/1991 | US5006255 Selective permeable membrane for separation of liquid solution |
| 04/09/1991 | US5006253 Inducing the fluid flow by depressurization; nondeforming, cleaning |
| 04/09/1991 | US5006234 Reverse osmosis water purification systems |
| 04/09/1991 | US5006233 Water purification system |