| Patents for B01J 41 - Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties (3,418) |
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| 09/01/1999 | CN1227509A Modified carbon adsorbents and process for adsorption |
| 08/24/1999 | CA2027275C Process and apparatus for treating ion exchange resin |
| 08/19/1999 | WO1999040990A1 Anion binding polymers and the use thereof |
| 08/17/1999 | US5939040 Method for producing crystalline, inorganic ion exchange material |
| 08/11/1999 | EP0912218A4 TECHNETIUM-99m GENERATOR SYSTEM |
| 08/10/1999 | US5936004 Strongly basic anion-exchanging molded bodies and a method of manufacturing the same |
| 08/10/1999 | US5936003 Resin support particles and anion exchange compounds attached wherein the anion-exchange compounds comprise an internal reactive group, which may be an ester, ketone or amide group, and a terminal quaternary ammonium salt which functions as an |
| 08/10/1999 | US5935443 Electrochemically regenerated ion neutralization and concentration devices and systems |
| 08/05/1999 | WO1999038595A1 Large capacity acid or base generator and method of use |
| 08/04/1999 | EP0933633A1 Process for obtaining L-dihydroorotic acid and use thereof |
| 08/04/1999 | EP0932582A1 Recycle of water from polyvinyl chloride polymerization by treatment with a cation exchange resin |
| 08/03/1999 | US5932187 Process for the preparation of an ultra pure hydrogen peroxide solution by ionic exchange in beds having defined H/D ratios |
| 07/27/1999 | US5928621 Process for the preparation of an ultra pure solution of hydrogen peroxide by ion exchange with recycling |
| 07/22/1999 | WO1999036151A1 Method of purifying photoacid generators for use in photoresist compositions |
| 07/20/1999 | US5925253 Hydrolytically stable resins for use in anion-exchange chromatography |
| 07/19/1999 | CA2224116A1 Zirconium and hafnium separation in chloride solutions using continuous ion exchange chromatography |
| 07/19/1999 | CA2224090A1 Zirconium and hafnium separation in sulfate solutions using continuous ion exchange chromatography |
| 07/14/1999 | EP0928295A1 Purification of immunoglobulins |
| 06/24/1999 | WO1999017879A3 Method for producing an anion-exchanging mineral and use of said mineral |
| 06/22/1999 | US5914025 Ion chromatographic method and apparatus using ion reflux |
| 06/17/1999 | WO1999030146A1 Process for obtaining l-dihydroorotic acid and use thereof |
| 06/17/1999 | CA2315326A1 Process for obtaining l-dihydroorotic acid and use thereof |
| 06/15/1999 | US5912385 Oxidation of a (hydroxy)alkylmercaptan with hydrogen peroxide |
| 06/03/1999 | WO1999026979A1 Lactalbumin production process |
| 06/01/1999 | US5908557 Process for the removal of pentavalent arsenic from water |
| 05/20/1999 | WO1999024139A1 Separation process |
| 05/20/1999 | WO1999010527A3 Method for isolating anionic organic substances from aqueous systems using cationic polymer nanoparticles |
| 05/19/1999 | EP0814907A4 Polymer sorbent for ion recovery processes |
| 05/18/1999 | US5904848 Porous membrane with glass particles embedded in plastic |
| 05/18/1999 | CA2140639C Iodine/resin disinfectant and a procedure for the preparation thereof |
| 05/14/1999 | WO1999023125A1 Cross-linked copolymers containing aminophosphonium groups |
| 05/14/1999 | WO1999022868A1 Pressure-enhanced extraction and purification |
| 05/14/1999 | CA2307876A1 Pressure-enhanced extraction and purification |
| 05/11/1999 | US5902833 Deagglomerating with a water-soluble sulfonated polyvinylaromatic polyelectrolyte to maintain anion exchange resin kinetics |
| 05/06/1999 | EP0912218A1 TECHNETIUM-99m GENERATOR SYSTEM |
| 05/06/1999 | DE19748651A1 Aminophosphoniumgruppen enthaltende vernetzte Copolymere Aminophosphoniumgruppen containing crosslinked copolymers |
| 05/05/1999 | CN1043214C Production of alkali metal carbonates |
| 04/29/1999 | WO1999020393A1 Method for separating specific groups of elements from aqueous solutions |
| 04/29/1999 | WO1999020389A1 Process for making and use of anionic clay materials |
| 04/29/1999 | DE19746480A1 Specific separation of groups of elements from aqueous solution, useful in analysis, material recovery, removing harmful metal ions and purifying water and waste liquor |
| 04/28/1999 | EP0910460A1 Iodinated matrices for disinfecting biological fluids |
| 04/28/1999 | EP0775150B1 Endotoxin reduction or removal process |
| 04/21/1999 | EP0909212A1 Modified carbon adsorbents and processes for adsorption using the same |
| 04/21/1999 | CN1214701A Ion exchange polymers for anion separations |
| 04/15/1999 | WO1999017879A2 Method for producing an anion-exchanging mineral and use of said mineral |
| 04/15/1999 | DE19743606A1 Use of anion-exchanging minerals |
| 04/01/1999 | WO1999015273A1 Ion exchange |
| 04/01/1999 | CA2304787A1 Ion exchange |
| 03/30/1999 | CA2039843C Ultra-lightweight, open-pore foamed cellulose materials with large surface areas, having ion-exchangeable functional groups introduced therein |
| 03/18/1999 | WO1999012624A1 Bifunctional resin composition for the simultaneous separation of carbohydrates and organic acids in liquid chromatography |
| 03/18/1999 | WO1998057672A3 Process for reducing the concentration of viral and molecular pathogens in a biological material |
| 03/17/1999 | CN1210848A Method and device for removing formic acid and acetic acid from water of glycol production |
| 03/17/1999 | CN1210763A Method for producing ion exchanging fiber and its use |
| 03/11/1999 | WO1999011351A1 Ion chromatographic method and apparatus using a combined suppressor and eluent generator |
| 03/11/1999 | WO1999011350A1 Bifunctional anion-exchange resins with improved selectivity and exchange kinetics |
| 03/04/1999 | WO1999010527A2 Method for isolating anionic organic substances from aqueous systems using cationic polymer nanoparticles |
| 03/04/1999 | CA2300885A1 Method for isolating anionic organic substances from aqueous systems using cationic polymer nanoparticles |
| 02/25/1999 | DE19736366A1 Isolating anionic substances e.g. protein, nucleic acids, from aqueous systems |
| 02/11/1999 | WO1999006133A1 Method for the separation of acid from sugars |
| 02/11/1999 | CA2299257A1 Method for the separation of acid from sugars |
| 02/02/1999 | US5866429 Precision and accuracy of anion-exchange separation of nucleic acids |
| 01/26/1999 | US5863957 Porous crosslinked polymeric microbeads having cavities joined by interconnecting pores wherein at least some of the cavities at the interior of each microbead communicate with the surface of the bead |
| 01/07/1999 | EP0888157A1 Process for chromatographic separation of peptides and nucleic acid, and new high affinity ion exchange matrix |
| 01/07/1999 | EP0634364B1 Pure water manufacturing method |
| 01/05/1999 | US5856192 Aqueous solvent for chromatography |
| 01/05/1999 | US5855789 N-alkylated polyvinylpyridine adsorbent |
| 12/23/1998 | WO1998057672A2 Process for reducing the concentration of viral and molecular pathogens in a biological material |
| 12/22/1998 | US5851400 Method for eliminating the displacer in displacement chromatography of proteins |
| 12/17/1998 | WO1998056504A1 METHOD FOR THE DEIONIZATION OF SUBSTANCES THAT ARE NOT STABLE AT ACIDIC pH |
| 12/16/1998 | EP0883574A1 Anion-exchange resins with at least two different nitrogen containing ion-exchange groups |
| 12/16/1998 | EP0883573A1 Removal of borate in chromatography |
| 12/16/1998 | EP0883428A1 A method of preparing a liquid mixture |
| 12/09/1998 | CN1200953A Synthesized chalcoalumite type chemical compound and preparation method therefor |
| 12/03/1998 | WO1998054088A1 Method for preparing an ultrapure hydrogen peroxide solution by ion exchange with recirculation |
| 12/03/1998 | WO1998054087A1 Method for preparing an ultrapure hydrogen peroxide solution by ion exchange with an anionic-cationic-anionic-cationic sequence |
| 12/03/1998 | WO1998054086A1 Method for preparing an ultrapure hydrogen peroxide solution by ion exchange in beds with defined h/d ratio |
| 12/03/1998 | WO1998054085A1 Method for preparing an ultrapure hydrogen peroxide solution by ion exchange in the presence of ion acetate |
| 11/19/1998 | WO1998051619A1 Process for the removal of pentavalent arsenic from water |
| 11/19/1998 | CA2289734A1 Process for the removal of pentavalent arsenic from water |
| 11/18/1998 | CN1040738C Process for purification of aqueous solution of alkali chloride to remove iodine |
| 11/11/1998 | EP0662099B1 Heterogeneous membrane and method |
| 11/10/1998 | US5834524 Process for the preparation of crosslinked polymers |
| 11/04/1998 | EP0875271A2 Process and apparatus for the isolation and purification of nucleic acids |
| 11/04/1998 | EP0616639B1 Device and process for isolating and purifying nucleic acids |
| 11/03/1998 | CA2005259C Gold selective ion exchange resins |
| 10/14/1998 | EP0870544A1 Process for preparation of strong basic anion exchangers with ethylene oxide |
| 10/08/1998 | WO1998043719A1 Process for removing selenium from selenium-containing waste streams |
| 10/08/1998 | CA2285272A1 Process for removing selenium from selenium-containing waste streams |
| 09/30/1998 | EP0866815A2 Biocompatible compositions |
| 09/30/1998 | CN1039990C Process for removing iodine compounds from carboxylic acids and/or anhydries |
| 09/29/1998 | US5814672 Strongly basic anion exchange resin and process for its production |
| 09/24/1998 | WO1998041301A1 Fluid-treatment device |
| 09/24/1998 | DE19711186A1 Vorrichtung für die Behandlung von Flüssigkeiten Apparatus for the treatment of liquids |
| 09/17/1998 | WO1998040145A1 Electrochemically regenerated ion neutralization and concentration devices and systems |
| 09/17/1998 | WO1998032513A3 Method for separating bi-213 from a solution of radionuclides |
| 09/11/1998 | WO1998039367A1 Hydrolytically stable resins for use in anion-exchange chromatography |
| 09/03/1998 | WO1998037940A1 Method of removing impurities from polymers utilizing facilitated ion exchange |
| 09/02/1998 | EP0810904B1 Amine heat stable salt removal from type ii anion exchange resin |
| 09/02/1998 | EP0647160B1 Ion exchange resin |
| 09/01/1998 | US5800714 Deactivating a water soluble chain transfer agent |