| 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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| 07/27/1993 | US5231115 Vinylidene monomer and crosslinking agent and suspension polymerization with free radical catalyst |
| 07/27/1993 | US5230805 Ion exchange resin, ferromagnetic substance in polymeric binder |
| 07/13/1993 | US5227524 Process for purifying acetic acid and/or acetic anhydride |
| 06/30/1993 | CN1073662A Production of alkali metal carbonates |
| 06/24/1993 | WO1993012167A1 Seeded porous copolymers and ion-exchange resins prepared therefrom |
| 06/24/1993 | CA2122028A1 Seeded porous copolymers and ion-exchange resins prepared therefrom |
| 06/23/1993 | CN1073458A Seeded porous copolymers and ion-exchange resing prepared therefrom |
| 06/19/1993 | CA2058002A1 Ion exchange resin, process for producing the same, and method for removing impurities from condensate |
| 06/10/1993 | WO1993011287A1 Purifying aqueous solutions of amine-n-oxides |
| 06/10/1993 | WO1993011221A1 Device and process for isolating and purifying nucleic acids |
| 06/10/1993 | WO1993011218A1 Method and device for the isolation of cell components, such as nucleic acids, from natural sources |
| 06/10/1993 | WO1993011071A1 Production of alkali metal carbonates |
| 06/10/1993 | CA2117294A1 Production of alkali metal carbonates |
| 06/05/1993 | WO1993010899A2 A support material and biocompatible anion exchange materials |
| 06/05/1993 | CA2100079A1 Anion exchange materials |
| 06/03/1993 | DE4139664A1 Vorrichtung und verfahren zur isolierung und reinigung von nukleinsaeuren Apparatus and method for isolation and purification of nucleic acids |
| 06/01/1993 | CA1318748C Shaped polymer organosiloxane-ammonia compounds, a process for the production of these, and the use of these compounds |
| 06/01/1993 | CA1318654C Chromatographic supports for separation of oligonucleotides |
| 05/26/1993 | EP0417282B1 Anion exchanger and use for treating fluid |
| 05/18/1993 | CA1318078C Ion exchange resins loaded with quinolonecarboxylic acid derivatives, their preparation and use |
| 04/21/1993 | EP0537938A1 Process for monitoring and controlling an alkanolamine reaction process |
| 04/20/1993 | US5204376 Anion Exchanger and a method for treating a fluid |
| 04/07/1993 | EP0535910A2 Method for improving the demulsibility of base oils |
| 04/06/1993 | US5200166 Purification of hydrogen peroxide solution |
| 04/03/1993 | CA2078299A1 Method for improving the demulsibility of base oils |
| 03/24/1993 | EP0532894A1 Weakly basic anion exchange resins, process for their preparation by aminolysis and use for removing sulfates ions from acqueous solutions |
| 03/23/1993 | US5196527 Chromatographic fillers |
| 03/11/1993 | DE4229866A1 Ion exchange resins, useful esp. for sepn. of bio-polymers - have insol., crosslinked , hydroxyl-contg. base polymer and poly:ol-glycidyl adduct as spacer, with ion exchange gps. on the spacer |
| 03/10/1993 | EP0530478A1 Method for treating a strongly basic anion exchange resin |
| 03/10/1993 | EP0530258A1 Adsorbent medium. |
| 03/04/1993 | DE4128837A1 Removing copper@ and-or nickel@ from aq. media - by using special porous anion exchange resins with weakly basic morpholine or piperazine gps., etc. |
| 03/02/1993 | US5190659 Contamination removal system employing filtration and plural ultraviolet and chemical treatment steps and treatment mode controller |
| 03/02/1993 | CA1314011C Method for the purification of proteins |
| 02/23/1993 | US5188737 Method of removing nitrate ion from a solution containing nitrate and other anions |
| 02/23/1993 | US5188732 Ion exchange resin holder |
| 02/23/1993 | CA2076429A1 Weakly basic anion exchangers, processes for their preparation by aminolysis and their use for removing sulphate ions from aqueous liquids |
| 02/18/1993 | WO1993003048A1 Process for purifying pentostatin |
| 02/16/1993 | US5187200 Contacting aqueous solutions with a porous format of an insoluble polymer having multi-valent metal cations bonded to it |
| 02/16/1993 | CA1313671C Preparation of 4-pentenoates by isomerization |
| 02/11/1993 | DE4214097A1 Eliminating anions from aq. hydrogen peroxide soln. |
| 02/04/1993 | DE4125627A1 Removal of anions from water - by anion exchange using yellow bismuth hydroxide |
| 01/26/1993 | US5182026 Resins having improved exchange kinetics |
| 01/06/1993 | CN1067595A Intensifying regeneration of waste anion exchange resin (201x7) |
| 01/05/1993 | US5176836 Water Purification, Iodine |
| 12/23/1992 | EP0519383A1 Purified amphoteric ion exchange resins and a process for their purification |
| 12/10/1992 | WO1992021419A1 Treating rhodium, iridium and ruthenium solutions |
| 12/04/1992 | CA2103144A1 Treating rhodium, iridium and ruthenium solutions |
| 12/02/1992 | EP0515646A1 Anion exchanger. |
| 12/01/1992 | US5167827 Reverse phase, without disturbing peaks or peak deformations in chromatogram |
| 12/01/1992 | CA1310963C Method for the recovery of steviosides from plant raw material |
| 11/19/1992 | DE4116000A1 Sepg. gold and silver complexes from aq. systems of cyanide or halogen - by absorption on strongly basic anion exchanger based on polymeric crosslinked organo:siloxane ammonium cpds. |
| 11/10/1992 | US5162084 Process for monitoring and controlling an alkanolamine reaction process |
| 10/27/1992 | US5158603 In presence of water insoluble weak organic acid |
| 10/21/1992 | CN1065466A Method for preparing uniform size ion-exchange resin particles |
| 10/20/1992 | US5156825 Pumping plating rinse water over basic ion exchange resin, then two-step elution with basic aqueous solution, evaporation and crystallization of gold cyanide salts |
| 10/07/1992 | EP0507591A2 Anion-exchange separation of nucleic acids |
| 10/07/1992 | EP0507490A2 Method for preparing uniform size ion-exchange resin particles |
| 10/07/1992 | EP0507467A1 Resins having improved exchange kinetics |
| 10/06/1992 | US5152986 Preparation and use of ion exchange resins loaded with quinolonecarboxylic acid derivatives |
| 10/06/1992 | US5152896 Use of grafted cellulose for purifying water |
| 10/03/1992 | CA2064645A1 Method for preparing uniform size ion-exchange resin particles |
| 10/01/1992 | WO1992016490A1 Processes for recovering citric acid |
| 09/29/1992 | US5151192 Removal of protein |
| 09/29/1992 | CA2064316A1 Resins having improved exchange kinetics |
| 09/17/1992 | WO1992015528A1 Method for removing and/or recovering mercury |
| 09/15/1992 | US5147536 Chromatography |
| 09/09/1992 | EP0502262A1 Ion exchange resin holder |
| 08/25/1992 | US5141965 Resins having improved exchange kinetics |
| 07/29/1992 | EP0496405A1 Porous resin and process for its production |
| 07/29/1992 | CN1017594B Anion exchanger |
| 07/28/1992 | US5134169 Gold selective ion exchange resins |
| 07/14/1992 | US5130396 Formed, polymeric organosiloxane ammonium compounds, method of their preparation and use |
| 07/14/1992 | US5130001 Uranium isotope separation by continuous anion exchange chromatography |
| 07/09/1992 | WO1992011088A1 Anion exchanger |
| 07/07/1992 | CA1304757C Process for the production of polyglycerines |
| 07/05/1992 | WO1992011933A1 Sulfonamide bonded hydrophilic coatings |
| 07/05/1992 | CA2099574A1 Sulfonamide bonded hydrophilic coatings |
| 06/24/1992 | EP0491006A1 Causing liquid/solid interaction |
| 06/24/1992 | CN1062136A Process for purifying acetic acid and/or acetic anhydride |
| 06/17/1992 | CN1061956A Process for removing iodide compounds from carboxylic acids and/or anhydrides |
| 06/11/1992 | WO1992009786A1 A method for dissolution and removal of alkaline earth metal scales |
| 06/09/1992 | US5120443 Processes for removing, separating and concentrating rhodium, iridium, and ruthenium from solutions using macrocyclic and nonmacrocyclic polyalkylene-polyamine-containing ligands bonded to inorganic supports |
| 06/02/1992 | US5118717 Homo or copolymer of divinyl crosslinking monomers |
| 06/02/1992 | CA1302614C Composite polymers, their preparation and use in liquid chromatography |
| 05/12/1992 | US5112949 Method of and apparatus for separating proteins |
| 05/12/1992 | US5112873 Styrene-divinylbenzene copolymer aminated with an aminopicoline and quaternized with a tertiary amine |
| 05/06/1992 | EP0484020A2 Process for purifying acetic acid and/or acetic anhydride |
| 05/05/1992 | US5110914 Method of separating proteins |
| 05/05/1992 | US5110875 Polystyrene anion exchange polymers |
| 05/01/1992 | CA2054025A1 Process for purifying acetic acid and/or acetic anhydride |
| 04/29/1992 | EP0482787A2 Process for removing iodide compounds from carboxylic acids and/or their anhydrides |
| 04/28/1992 | US5108596 Flow pressure-resistant, high strength chromatography absorbers; separation of proteins, enzymes and biological substances |
| 04/22/1992 | EP0481603A1 Separation of weak organic acids from liquid mixtures |
| 04/20/1992 | CA2053179A1 Process for removing iodide compounds from carboxylic acide and/or anhydrides |
| 04/16/1992 | CA2053412A1 Separation of weak organic acids from liquid mixtures |
| 04/15/1992 | EP0480386A1 Polytetraalkylammonium and polytrialkylamine containing ligands bonded to inorganic supports and processes of using the same for removing and concentrating desired ions from solutions |
| 03/24/1992 | US5098701 Crosslinked pyridinomethacrylate polymers |
| 02/25/1992 | US5091424 Treating an ethanolamine/chloromethylated copolymer in the chloride or sulfate form with a bisulfite salt and converting to the hydroxide form; less acetaldehyde; storage stability |
| 02/11/1992 | US5087359 For separation and purification of proteins; ability to bind proteins with high pH isoelectric points |
| 01/28/1992 | US5084185 Purification of water to remove nitrates by ion exchanging fol lowed by regeneration |