| Patents for B01J 47 - Ion-exchange processes in general; Apparatus therefor (4,635) |
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| 11/21/1991 | DE4016000A1 Ion exchange appts. for treating liq. - esp. for metal recovery, with exchanger regeneration by electro-dialysis |
| 11/19/1991 | US5066784 Porous vinyl polymeric matrix filled with a physically- or chemically-bound reactive gel; high loadings; solid phase synthesis; chromatography; ion exchanging |
| 11/19/1991 | US5066682 Process for preparing an ion exchange membrane |
| 11/19/1991 | US5066375 Introducing and removing ion-exchange and other particulates from an assembled electrodeionization stack |
| 11/19/1991 | US5066371 Cycling through liquid treatment containers; countercurrent flow |
| 11/12/1991 | US5064534 Ion exchange adsorption |
| 11/06/1991 | CN2087987U Rotary ion-exchange apparatus |
| 10/22/1991 | US5059654 Affinity matrices of modified polysaccharide supports |
| 10/16/1991 | EP0452042A1 Ion exchange process |
| 10/01/1991 | US5053133 Affinity separation with activated polyamide microporous membranes |
| 09/25/1991 | CN2085368U U type co- and counter-current ion-exchanger |
| 09/18/1991 | EP0446213A1 Vertical reaction vessel |
| 09/17/1991 | US5049272 Filter cartridge with vented cap |
| 09/17/1991 | CA1289103C Demineralization of aqueous solution in cell including ionic exchange membranes using electrical potential |
| 09/03/1991 | US5045210 Synthetic Polymer Modified Polysaccharide, Ion Exchange Resins |
| 08/28/1991 | CN1054019A Method for fully separated mixed resin |
| 08/21/1991 | EP0442605A1 Method of performing electrochemical ion exchange |
| 08/14/1991 | EP0441660A1 Affinity separation with activated polyamide microporous membranes |
| 08/14/1991 | EP0441478A1 Separation method |
| 08/13/1991 | US5039413 Spiral wrapped fluid treatment element |
| 08/13/1991 | CA1287598C Electrolytic process for producing extremely low chloride anion exchange resins |
| 07/25/1991 | WO1991010493A1 Multi-function filter cartridge with flow distribution control |
| 07/24/1991 | EP0438331A1 Use of graft cellulose for water purification |
| 07/24/1991 | EP0437763A1 Method for treating aqueous solutions |
| 07/16/1991 | CA2034077A1 Use of grafted cellulose for purifying water |
| 07/16/1991 | CA1286065C Formation of continuous pores membrane by treating liquid medium containing protien with reactant |
| 07/09/1991 | CA1285743C Physical and chemical treatment column in heterogeneous phase |
| 07/03/1991 | EP0417194A4 Method and apparatus for purifying hydrogen fluoride |
| 07/03/1991 | CN2080063U Treating apparatus of liquidized bed ion exchanging water |
| 07/02/1991 | US5028335 Crystal structure, ultrafiltration, biochemical immobilization, from Bacillus cells |
| 07/02/1991 | CA1285666C Integral water demineralizer system and method |
| 06/27/1991 | WO1991008814A1 Fluid treatment devices |
| 06/26/1991 | EP0433750A1 Process for the preparation of chromic acid |
| 06/26/1991 | EP0433748A1 Process for the preparation of chromic acid |
| 06/25/1991 | US5026465 Electrodeionization polarity reversal apparatus and process |
| 06/19/1991 | EP0207100B1 Process for changing the effective pore size of a structure |
| 06/18/1991 | US5024767 Blend of anion exchanger and polyamide or polyester graft polymer as cation exchanger |
| 06/18/1991 | US5024764 Filling a hollow cylindrical block with an aqueous slurry of deionizing resin beads and drying beads to fracture |
| 06/17/1991 | CA2032369A1 Process for the preparation of chromic acid |
| 06/17/1991 | CA2032368A1 Process for the preparation of chromic acid |
| 06/12/1991 | EP0195819B1 Method for ion-exchange or adsorption |
| 06/12/1991 | CN2078653U Floating-bed-type ion-exchanger with three adjustable chambers |
| 06/11/1991 | US5022997 Method for treating aqueous solutions |
| 06/06/1991 | DE3939523A1 Control switch assembly for fluid cleansing columns - has central distributor switch with inlet and outlet pipes |
| 06/05/1991 | EP0430323A1 Silver recovery device |
| 06/05/1991 | EP0429661A1 Method of water treatment |
| 05/29/1991 | EP0428868A2 Materials for removing suspended impurities |
| 05/15/1991 | EP0093114B1 Cation exchange membrane with high equivalent weight component |
| 05/15/1991 | CN1051336A Adsorbent for removing suspended impurities and use thereof |
| 05/07/1991 | US5013449 Process for solute recovery utilizing recycle liquids having a stored concentration profile |
| 05/07/1991 | US5013435 Clarifying system for liquids |
| 05/01/1991 | CN1051029A Condensate purification process |
| 04/24/1991 | EP0424084A2 Condensate purification process |
| 04/21/1991 | WO1991005705A1 Device for continuous contacting of liquids and solids |
| 04/18/1991 | WO1991004792A1 Vertical reaction vessel |
| 04/18/1991 | CA2027757A1 Condensate purification process |
| 04/17/1991 | EP0422453A2 Process for purifying water |
| 04/16/1991 | CA1283091C Solid polyvinyl alcohol-based support able to adsorb lipoproteins and its use for the separation of low density lipoproteins present in a liquid, such as blood plasma |
| 04/10/1991 | EP0421261A1 Ion exchange resin device |
| 04/09/1991 | US5006246 Baffled particulate material housing |
| 04/06/1991 | WO1991004791A1 Causing liquid/solid interaction |
| 04/06/1991 | CA2067380A1 Causing liquid/solid interaction |
| 04/06/1991 | CA2027064A1 Continuous production of potassium nitrate via ion exchange |
| 04/04/1991 | WO1991004089A1 Method and device for filtering and processing fluids |
| 04/02/1991 | US5004648 Fiber of a fluorocarbon polymer and a process for producing the same |
| 03/21/1991 | WO1991003297A1 Process and device for adsorptive separation of materials |
| 03/20/1991 | EP0417506A1 Electrodeionization and ultraviolet light treatment method for purifying water |
| 03/20/1991 | EP0417407A1 Shaped bodies of macroporous ion exchanger resins and their use |
| 03/20/1991 | EP0417194A1 Method and apparatus for purifying hydrogen fluoride. |
| 03/19/1991 | US5001163 Organic polymeric material and ion-exchange membrane with pendant carbocyclic exchanging groups produced |
| 03/19/1991 | US5001063 Treatment of cellulosic ion exchange composites in hot aqueous medium to increase adsorption of macromolecules |
| 03/19/1991 | CA1281675C Product and process for increasing enzyme adsorption |
| 03/12/1991 | US4999190 Preparation of I5 - polyiodide disinfectant resins |
| 03/12/1991 | US4999102 Liquid transfer manifold system for maintaining plug flow |
| 03/07/1991 | DE4028357A1 Adsorptive sepn. using microporous adsorbent - esp. travelling strip through which medium flows, useful for immuno:complex formation |
| 02/21/1991 | WO1991001808A1 Use of tentacle cation exchangers for selective elimination of low-density lipoproteins (ldl), fibrinogens and/or urea from fluids |
| 02/19/1991 | WO1991002649A1 Precoat septum with a continuous filament yarn |
| 02/19/1991 | CA2064788A1 Precoat septum with a continuous filament yarn |
| 02/14/1991 | DE3926539A1 Verwendung von tentakel-kationenaustauschern zur selektiven eliminierung von low-density-lipoproteinen (ldl), fibrinogen und/oder harnstoff aus fluessigkeiten Use of tentacle-cation selective elimination of low-density lipoproteins (LDL), fibrinogen and / or urea from liquids |
| 02/05/1991 | US4990260 Radiation ionization of water to produce hydroxy free radicals; decomposes organic impurities |
| 01/26/1991 | WO1991001267A1 Purification of hydrogen peroxide |
| 01/23/1991 | EP0409344A2 A cation exchange membrane having high stability |
| 01/22/1991 | WO1991001392A1 Method of removing ions |
| 01/22/1991 | CA2064224A1 Method of removing ions |
| 01/16/1991 | CN2069411U Soft water treatment device with saline liquid jetting device |
| 01/09/1991 | EP0406674A1 Ion exchange device for water treatment, process for its fabrication and its use for removing nitrites and/or nitrates from water |
| 01/08/1991 | WO1991000778A1 Ion exchange device for purifying water, process for manufacturing it and its use for removing nitrates and/or nitrites from water |
| 01/08/1991 | US4983267 Water deionization and contaminants removal or degradation |
| 01/08/1991 | CA2039147A1 Ion exchange device for purifying water, process for manufacturing it and its use for removing nitrates and/or nitrites from water |
| 01/03/1991 | DE4019580A1 Device for electrochemically sepg. and removing ions from liq. - uses two electrodes to apply an electric potential across an ion exchange material, causing ions to be pptd. |
| 12/27/1990 | WO1990015659A1 Process for removing ionizable impurities from non-aqueous fluids |
| 12/27/1990 | CA1278269C Apparatus for loading ion exchange resins |
| 12/25/1990 | US4980067 Polyionene-transformed microporous membrane |
| 12/25/1990 | US4979654 Cap for use with water treatment apparatus |
| 12/19/1990 | EP0402865A1 Preparation of I5-polyiodide disinfectant resins |
| 12/19/1990 | EP0289543B1 A method for cleansing metal-containing solutions, and apparatus herefor |
| 12/18/1990 | US4978449 Water purifier with air-passing retainer above water inlet |
| 12/12/1990 | EP0401535A1 Water treatment device |
| 12/11/1990 | CA1277577C Adsorptive fiber sheet |
| 12/07/1990 | CA2016805A1 Water treatment device |