| Patents for B01J 39 - Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties (4,694) |
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| 04/08/1998 | CN1178193A Modified zeolite and manufacture thereof |
| 03/25/1998 | EP0830339A1 Process for preparing amides of n-alkyl polyhydroxyalkyl amines |
| 03/25/1998 | EP0830316A1 Point-of-use ammonia purification for electronic component manufacture |
| 03/19/1998 | WO1998010860A1 Adsorbent material selective with respect to metal pollutants, method of preparation and use thereof |
| 03/18/1998 | CN1176227A Household water treater |
| 03/11/1998 | EP0827424A1 Composition of matter |
| 03/11/1998 | EP0797542A4 Process for forming alumino-silicate derivatives |
| 03/04/1998 | EP0826704A2 Process for the preparation of crosslinked polymers |
| 03/04/1998 | EP0734410B1 Method for making reinforced ion exchange membranes |
| 03/04/1998 | CN1174847A Process for preparation of crosslinked polymers |
| 02/26/1998 | CA2213733A1 Process for the preparation of crosslinked polymers |
| 02/25/1998 | EP0797541A4 Alumino-silicate derivatives |
| 02/24/1998 | US5721279 Contacting beads of monovinylidene aromatic monomer and polyvinylidene crosslinking monomer with sulfonation agent in the presence of swelling solvent |
| 02/19/1998 | WO1998006671A1 Methods for removing unreacted electrophiles from a reaction mixture |
| 02/18/1998 | EP0823866A1 Process for separating multivalent metal ions from autodeposition compositions |
| 02/17/1998 | USRE35730 Apparatus and process to regenerate a trivalent chromium bath |
| 02/17/1998 | US5718920 Ion exchanger overcoated with permselective membrane |
| 02/17/1998 | US5718828 Method for minimizing wastewater discharge |
| 02/11/1998 | CN1172686A Removal of metal compounds from acid solution |
| 02/05/1998 | WO1998004598A1 Cation exchangers or chelating agents and process for the preparation thereof |
| 02/05/1998 | WO1998004348A1 Filter sheet and process for purifying photoresist composition employing the filter sheet |
| 02/05/1998 | CA2261862A1 Filter sheet and process for purifying photoresist composition employing the filter sheet |
| 02/04/1998 | EP0821662A1 Recovery of acetic acid from dilute aqueous streams formed during a carbonylation process |
| 02/04/1998 | EP0730494B1 Particles for binding monovalent cations and their use |
| 01/27/1998 | US5712347 Grafted methylenediphosphonate ion exchange resins |
| 01/14/1998 | EP0817758A1 Filter for drinking water filtration |
| 01/07/1998 | EP0815939A2 Ion-exchanger, process for production thereof and process for removal of multicharged anions employing the ion-exchanger |
| 01/07/1998 | EP0814907A1 Polymer sorbent for ion recovery processes |
| 01/07/1998 | EP0764047A4 Polymeric microbeads and method of preparation |
| 12/31/1997 | WO1997050092A1 Method for cesium removal from radioactive waste liquids and method for producing hexacyanoferrates |
| 12/31/1997 | WO1997049486A1 Zeolite containing cation exchangers, methods for preparation, and use |
| 12/29/1997 | EP0787153B1 Process for re-using an aqueous process fluid from the amine oxide process |
| 12/18/1997 | WO1997047382A1 Modified carbon adsorbents and processes for adsorption using the same |
| 12/18/1997 | CA2258189A1 Modified carbon adsorbents and processes for adsorption using the same |
| 12/17/1997 | CN1167778A Polyaniline-phenol resin and preparing method thereof |
| 12/10/1997 | EP0621801B1 Aminoalkylphosphonic acid containing ligands attached to solid supports for removal of metal ions |
| 12/09/1997 | US5695882 Reaction product of polyamine with short chain hydrocarbylsilane bonded to hydrated surface of extraction material |
| 12/03/1997 | CN1036583C Process for conversion of oximes into corresponding amides |
| 12/02/1997 | US5692461 Apparatus and method for removing cations and anions from an engine coolant liquid |
| 11/25/1997 | US5690832 Chemically active ceramic compositions with a phospho-acid moiety |
| 11/19/1997 | EP0807086A1 Process for producing hydrotalcites and their metal oxides |
| 11/19/1997 | EP0757589A4 Separating and concentrating certain ions using ion-binding ligands bonded to membranes |
| 11/19/1997 | CN2268025Y Domestic running-water softening device |
| 11/19/1997 | CN1165522A Process for regenerating an aqueous process fluid from the amine oxide process |
| 11/19/1997 | CN1165514A Process for the selective separation of morpholine |
| 11/12/1997 | EP0696330B1 Process for purifying aqueous solutions of tertiary amino oxides |
| 11/12/1997 | CN1164830A Process for separating cesium from industrial streams containing other alkali metals using poly(hydroxyarylene) polymeric resins |
| 10/29/1997 | EP0802936A1 Crosslinked seeded copolymer beads and process of manufacture |
| 10/29/1997 | EP0695324B1 Process for producing cellulose shaped bodies |
| 10/28/1997 | US5681477 Variations in temperature |
| 10/28/1997 | CA2138862C Adsorbent production with lithium recovery |
| 10/23/1997 | WO1997023282A3 Process for the preparation of free-flowing very acidic cation exchangers |
| 10/21/1997 | US5679281 Gelled material compositions with modified halopolymer |
| 10/21/1997 | US5679256 Pumping contaminated water uniformly across top surface of bed of granulated zeolite provided in trench having water barrier lining to filter out radionuclides, removing treated water from bottom of bed |
| 10/21/1997 | CA2074177C Method for producing a carrier for cation exchange liquid chromatography and a method for determining glycosylated hemoglobins using the carrier |
| 10/14/1997 | US5678233 Introducing apatite precursor into aqueous solution containing toxic heavy metal or radioactive material, creating monolithic apatite-like crystalline wasteform having hazardous material immobilized in crystal structure |
| 10/09/1997 | DE19613280A1 Separating species of metal ions |
| 10/08/1997 | CN1161680A Alumino-silicate derivatives |
| 10/08/1997 | CN1161679A Alumino-silicate derivatives |
| 10/08/1997 | CN1161341A Removal of alkali metal compound from polymer cement |
| 10/01/1997 | EP0797542A1 Process for forming alumino-silicate derivatives |
| 10/01/1997 | EP0797541A1 Alumino-silicate derivatives |
| 10/01/1997 | CN1160604A Aluminium-eliminating and silicon-replenishing method for zeolite |
| 09/30/1997 | US5672276 Passivated porous polymer supports and methods for the preparation and use of same |
| 09/24/1997 | EP0796227A1 Method and device for producing demineralised sterile aqueous phases |
| 09/23/1997 | USRE35615 Ion exchanging |
| 09/23/1997 | US5670632 Process for obtaining an isoflavone concentrate from a soybean extract |
| 09/23/1997 | US5670049 Hydroxy support with nucleoside graft polymerized the presence of cerium |
| 09/10/1997 | CN1159177A Water treatment process |
| 09/09/1997 | US5665239 Processes for deionization and demineralization of fluids |
| 09/03/1997 | EP0721372B1 Nucleoside-containing sorbent for affinity chromatography |
| 09/03/1997 | EP0515646B1 Anion exchanger |
| 09/02/1997 | CA1339402C Ion exchange resin beads and processes for preparing them |
| 08/27/1997 | CN1157800A Thermally-driven ion-exchange process for lithium recovery |
| 08/20/1997 | EP0789608A1 Processes for separating cesium from industrial streams containing other alkali metals using poly(hydroxyarylene) polymeric resins |
| 08/12/1997 | US5656702 Water pollution control |
| 08/07/1997 | WO1997028090A1 Filter for drinking water filtration |
| 08/06/1997 | EP0787153A1 Process for re-using an aqueous process fluid from the amine oxide process |
| 08/05/1997 | US5653922 Porous crosslinked ion exchange resins, cationic polymer, carbonized carbon or gel-filled particles; protein synthesis, high density cell culture |
| 07/31/1997 | WO1997026992A1 Method and apparatus for minimizing wastewater discharge |
| 07/31/1997 | CA2243978A1 Method and apparatus for minimizing wastewater discharge |
| 07/29/1997 | US5652348 Solid support matrix, ionizable ligands selected relative to target compound |
| 07/29/1997 | US5652059 Method for attaching microspheres to a substrate |
| 07/24/1997 | WO1997026269A1 A process for obtaining an isoflavone concentrate from a soybean extract |
| 07/24/1997 | WO1997026065A1 Processes for deionization and demineralization of fluids |
| 07/23/1997 | EP0785170A1 Process for the purification of a solution of lithium salts contaminated with metallic cations and use of that process in the production of lithium-exchanged zeolites |
| 07/16/1997 | EP0783497A1 Process for the selective separation of morpholine |
| 07/16/1997 | EP0783366A1 Chromatographic resins and methods for using same |
| 07/15/1997 | US5648561 Process for the production of high purity and ultrapure bisphenol-A |
| 07/15/1997 | US5647987 Ion exchangers |
| 07/03/1997 | WO1997023517A1 Process for the preparation of very acidic cation exchangers |
| 07/03/1997 | WO1997023290A1 Granular titanate ion exchangers and method for preparation thereof |
| 07/03/1997 | WO1997023282A2 Process for the preparation of free-flowing very acidic cation exchangers |
| 07/02/1997 | EP0781784A1 Removal of an alkali metal compound from a polymer cement |
| 07/02/1997 | EP0781605A1 Removal of metal compounds from an acid solution |
| 07/02/1997 | EP0781255A1 Water treatment process |
| 06/28/1997 | CA2193778A1 Removal of metal compounds from an acid solution |
| 06/28/1997 | CA2193777A1 Removal of an alkali metal compound from a polymer cement |
| 06/26/1997 | WO1997011099A3 Functionalized copoly(m-phenylene)-based solid polymer electrolytes |
| 06/26/1997 | DE19644222A1 Verfahren zur Herstellung von freifließenden Kationenaustauschern A process for preparing free-flowing cation exchangers, |