| 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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| 10/19/1993 | US5254251 Membrane for the separation of liquid mixtures by pervaporation |
| 10/19/1993 | US5254243 Water conditioning system and an electronic control therefor |
| 10/19/1993 | US5254227 Ion exchanging, conducting electric current, separating |
| 10/19/1993 | US5253514 Water-borne particulate-measuring apparatus |
| 10/19/1993 | CA1323312C Fluid flow apparatus control and monitoring |
| 10/19/1993 | CA1323311C Water purifying system |
| 10/14/1993 | WO1993020012A2 Electrodialyzer and process for desalination |
| 10/14/1993 | WO1993019829A1 Process and device for recycling polluted process water |
| 10/14/1993 | DE4211719A1 Prepn. of technically pure indigo from fresh plant material - by opening up cells, dissolving indigo precursors, removing plant components, fermenting to give indigotin and sepg. indigotin |
| 10/14/1993 | DE4211656A1 Verfahren und Vorrichtung zum Recycling verschmutzter Prozesswasser Method and apparatus for recycling contaminated process water |
| 10/13/1993 | EP0410990B1 Multistep method for separating organic compounds from a solution |
| 10/12/1993 | US5252350 Process for clarifying liquids, particularly raw juice |
| 10/12/1993 | US5252222 Synthetic microporous polymeric structure |
| 10/12/1993 | US5252220 Preparation of analytical samples by liquid-liquid extraction using microporous hollow-fiber membranes |
| 10/12/1993 | US5252219 Compressed permeate sweep membrane separation process |
| 10/12/1993 | US5252218 Process for separating solid particulates from a nonaqueous suspension |
| 10/07/1993 | DE4210413A1 Membrane filter for sepn. of poly-dispersions into continuous and dispersed phases - is a bonded powder mass on a carrier support grid providing high mechanical strength etc., useful for sepg. fluids contg. particle or oil matter |
| 10/06/1993 | EP0564053A2 Blood cleaning method |
| 10/06/1993 | EP0564045A1 Composite membrane and its use for the dehydratation of organic solvents or concetrated acetic acid solutions |
| 10/06/1993 | EP0563646A1 Cross-flow filtration device with submerged circulation pump |
| 10/06/1993 | EP0563321A1 Electrodeionization apparatus. |
| 10/05/1993 | US5250185 Water softening to remove divalent cations, raising pH, passing through crosslinked, interfacially polymerized, aromatic polyamide membrane |
| 10/05/1993 | US5250184 Supported, continuos inorganic membrane, filtraiton |
| 10/05/1993 | US5250183 Degassing, evaporation of carbon dioxide, then reverse osmosis for removal of scale forming ions |
| 10/05/1993 | US5250182 Eliminating use of evaporator |
| 10/05/1993 | US5250159 Monovalent cation selective, blocking multivalent ones |
| 10/05/1993 | US5249735 Channel plate assembly with parallel plates, process and fixture for manufacturing the same, and plate apparatus provided with the same |
| 10/05/1993 | CA1322764C Dehydration of organic oxygenates |
| 09/29/1993 | EP0563027A2 Water treatment apparatus |
| 09/29/1993 | EP0562321A1 Oil separator with integrated micro-filtration device |
| 09/29/1993 | EP0561942A1 Apparatus and method for electrodialytic treatment of salts to produce acid and/or base of improved purity. |
| 09/29/1993 | EP0561916A1 Membrane made from multiblock polymer. |
| 09/29/1993 | CN1076737A Process for removing colored components from solvent for polyacrylonitrile |
| 09/28/1993 | US5248424 Frameless array of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate |
| 09/28/1993 | US5248418 2-stage ultrafiltration system for photographic emulsions |
| 09/28/1993 | US5248343 Method for finishing metal containers |
| 09/28/1993 | CA1322543C Production of chloric acid |
| 09/28/1993 | CA1322443C Semi-permeable membranes comprising predominantly of polycarbonates derived from tetrahalobisphenols |
| 09/28/1993 | CA1322442C Tetrabromo bisphenol based polyestercarbonate membranes and method of using |
| 09/26/1993 | CA2092368A1 Process for cleaning a facility for separating silicon components in a bath for hydrochloric pickling of steel products; the device for said process |
| 09/23/1993 | DE4308380A1 Micro-filtration assembly - has compressed air membrane pump and robust membranes in filtration module for processing highly abrasive media |
| 09/23/1993 | DE4209070A1 Sludge water extn. - has final electro=osmosis stage at low pressures with constant DC with pressure increases to maintain voltage as material dries |
| 09/22/1993 | EP0561760A1 Extracting organic compounds from aqueous solutions |
| 09/22/1993 | EP0561759A1 Supported liquid membrane and separation process employing same |
| 09/22/1993 | EP0561730A1 Flue gas desulfurization process |
| 09/22/1993 | EP0560877A1 Method and apparatus to detoxify aqueous based hazardous waste |
| 09/21/1993 | US5246586 Apparatus and method for producing ultrapure water and method of controlling the apparatus |
| 09/16/1993 | WO1993017776A1 Method of preparing fibrinogen |
| 09/16/1993 | WO1993017774A1 Filter and method for obtaining platelets |
| 09/15/1993 | EP0560422A1 Process for the production of sodium hydroxide |
| 09/15/1993 | EP0560281A1 Dynamic filter separator |
| 09/15/1993 | EP0560244A2 A film-forming, starchy, polymeric composition and shaped articles, particularly films and sheets therefrom |
| 09/15/1993 | EP0559826A1 Method for finishing metal surfaces with terpene |
| 09/14/1993 | US5245105 Separation of aluminum alkyls from olefins using polyphenylene oxide membrane |
| 09/14/1993 | US5244585 Method of cleaning porous ceramic filters |
| 09/14/1993 | US5244579 Transportable reverse osmosis water purification unit |
| 09/14/1993 | US5244553 Method for recovering acid from an acid-sugar hydrolyzate |
| 09/14/1993 | US5244547 Decreasing the concentration of hydroxyl ions in aqueous alkaline peroxide solutions |
| 09/14/1993 | US5244478 Reagentless separator for removal of acid gases and their hydrolysis products from solutions |
| 09/14/1993 | US5244361 Pump for reverse osmosis system |
| 09/10/1993 | CA2091296A1 Brine recycling method and an apparatus therefor |
| 09/10/1993 | CA2090828A1 Process for producing sodium hydroxide |
| 09/09/1993 | DE4206605A1 Pivot grip for circular objects esp. clinical vessels of different dia. - facilitate one-handed changes requiring no adjustments |
| 09/08/1993 | EP0559451A2 Liquid-solid extraction apparatus and method of using same |
| 09/08/1993 | EP0558519A1 Process for separating the solid constituents of a suspension and device for carrying out said process. |
| 09/07/1993 | US5242597 Purification of silver halide emulsions |
| 09/07/1993 | US5242596 Process for concentrating latex dispersions |
| 09/07/1993 | US5242595 Bacteria removal by ceramic microfiltration |
| 09/07/1993 | CA2091202A1 Liquid-solid extraction apparatus and method of using same |
| 09/07/1993 | CA1321973C Method for producing high purity quaternary ammonium hydroxides |
| 09/06/1993 | CA2074592A1 Filter and method for obtaining platelets |
| 09/02/1993 | WO1993017090A1 Apparatus for collection and transfer of particles and manufacture thereof |
| 09/02/1993 | DE4205905A1 Problem liq. waste disposal - by pretreatment using flocking or precipitation or adsorption before micro-or ultra-filtration |
| 09/02/1993 | DE4205826A1 Back flushing process for reverse osmotic desalination units - using water previously purified by the unit |
| 09/01/1993 | EP0557803A1 Separation device for oil/water mixtures |
| 08/31/1993 | US5240614 Bioreactor of dual-skinned hollow polymeric membranes with microporous structure secured in enclosure |
| 08/31/1993 | US5240612 Adjusting flow rate but not driving pressure of circulating medium |
| 08/31/1993 | US5240591 Membrane process for separating a mixture containing dewaxed oil and dewaxing solvent |
| 08/31/1993 | US5240579 Electrodialysis reversal process and apparatus with bipolar membranes |
| 08/31/1993 | US5240570 Surfactant augmented in-situ removal of PCBs from soil by electroosmosis |
| 08/31/1993 | US5240471 Multistage cascade-sweep process for membrane gas separation |
| 08/25/1993 | EP0556827A1 Method for hydrogen ion-selective electrodialysis |
| 08/25/1993 | EP0556303A1 System and method for processing biological fluids |
| 08/25/1993 | EP0556232A1 Composite membrane for facilitated transport processes |
| 08/24/1993 | US5238574 Desalting salt water by passing through plurality of reverse osmosis membrane stages, including a low pressure stage |
| 08/24/1993 | US5238573 Separation of organic liquids |
| 08/24/1993 | US5238567 Membrane process for separating a mixture containing dewaxed oil and dewaxing solvent |
| 08/24/1993 | US5238563 Multi-element housing |
| 08/24/1993 | US5238561 Hollow fiber mass transfer apparatus |
| 08/24/1993 | CA1321554C Immunoassay filter and test device containing same, with flow-delaying polymer |
| 08/24/1993 | CA1321548C Purified water supply system |
| 08/24/1993 | CA1321450C Bipolar membranes and methods of making same |
| 08/19/1993 | WO1993016025A1 Method of purifying glycerin water |
| 08/19/1993 | WO1993015826A1 Process for separating inorganic salts |
| 08/19/1993 | WO1993015825A1 Device and method for extracorporeal blood treatment |
| 08/19/1993 | DE4204700A1 Verfahren zur abtrennung anorganischer salze Process for the separation of inorganic salts |
| 08/18/1993 | EP0556003A1 Process for removing colored components from solvent for polyacrylonitrile |
| 08/18/1993 | EP0555621A1 Pump arrangement |
| 08/18/1993 | EP0427840B1 Device for electrokinetic desalination of brickwork |
| 08/18/1993 | EP0243404B1 Method for confining a catalyst in multiphase membrane reactor systems |