| Patents for B01J 45 - Ion-exchange in which a complex or a chelate is formed; Use of material as complex or chelate forming ion-exchangers; Treatment of material for improving the complex or chelate forming ion-exchange properties (1,510) |
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| 11/29/1994 | CA2124546A1 Process for purification of hydrogen peroxide |
| 11/24/1994 | WO1994026378A1 Elution of antimony from solid phases |
| 11/22/1994 | US5366636 Method of treating water with resin bound ionic silver |
| 11/02/1994 | EP0621801A1 Aminoalkylphosphonic acid containing ligands attached to solid supports for removal of metal ions |
| 10/05/1994 | EP0618185A1 Process for the removal of corrosion metal contaminants from liquid compositions |
| 09/23/1994 | CA2119298A1 Process for the removal of corrosion metal contaminants from liquid compositions |
| 08/17/1994 | CN1090794A Process of removing ions from solutions using a complex with sulfur-containing hydrocarbons (as amended) |
| 08/09/1994 | US5336704 Process for insolubilizing absorbed metal ions |
| 08/02/1994 | US5334316 Process of using polytetraalkylammonium and polytrialkylamine-containing ligands bonded to inorganic supports for removing and concentrating desired ions from solutions |
| 07/26/1994 | US5332420 Chemical process of separating metals from an organic complex |
| 07/12/1994 | US5328616 Methods and apparatus for treating electroless plating baths |
| 06/29/1994 | CN1088485A Aminolkylphosphonic acid containing ligands attached to solid supports for removal of metalions. |
| 06/09/1994 | WO1994012439A1 Methods and apparatus for treating electroless plating baths |
| 06/07/1994 | US5318846 Process of removing ions from solutions using a complex with sulfur-containing hydrocarbons also containing electron withdrawing groups bonded to a solid hydrophilic matrix |
| 06/01/1994 | EP0599003A1 Apparatus and process for regeneration of an ion-exchange installation |
| 06/01/1994 | DE4306426A1 Regeneration of resin in ion-exchange plant |
| 05/31/1994 | US5316683 Metal extraction by ion exchange |
| 05/31/1994 | US5316679 Elution of antimony from solid phases using concentrated sulfuric acid containing dilute hydrochloric acid |
| 05/04/1994 | EP0594599A1 Process for producing chelatising ion-exchange resins and their use in metal extraction |
| 04/19/1994 | US5304309 Cyclic process for selective coagulant recovery from clarifier sludge |
| 04/12/1994 | US5302370 Form complexes with rhenium and technetium |
| 04/05/1994 | US5300628 Selected chelate resins and their use to remove multivalent metal impurities from resist components |
| 03/15/1994 | US5294652 Process for recovering silver from photographic chemical effluent |
| 03/09/1994 | EP0362325B1 Chelating resins and process for using them in the extraction of metallic ions |
| 03/01/1994 | US5290453 Process for preparing chelating ion exchanger resins and the use thereof for the extraction of metals |
| 02/17/1994 | DE4227019A1 Modified amine or amide polymers - prepd. by reaction with functionalising component and crosslinker |
| 02/15/1994 | US5286464 Complexing contaminated liquids with amorphous silica gel having surface functionalized by substituted silanetriols, then recovery of metals and regeneration of resin |
| 01/26/1994 | CN1081160A Efficient adsorptional water treating agent |
| 01/12/1994 | EP0578347A1 Separation of metal ions on an anion exchange resin by chromatographic elution |
| 01/11/1994 | CA1326007C Supported heteropolycyclic compounds in the separation and removal of late transition metals |
| 01/11/1994 | CA1326006C Particulate material suitable for selectively separating metal cations from aqueous solutions, process for its production, and use thereof |
| 01/07/1994 | CA2099815A1 Separation of metal ions on an anion exchange resin by chromatographic elution |
| 01/05/1994 | CN1023406C Synthesis of cross-linked alpha-ethyl pyridinyl polystyrene resin |
| 12/28/1993 | US5273660 Aminoalkylphosphonic acid containing ligands attached to solid supports for removal of metal ions |
| 12/23/1993 | WO1993025306A1 Process of removing ions from solutions using a complex with sulfur-containing hydrocarbons also containing electron withdrawing groups bonded to a solid hydrophilic matrix |
| 12/16/1993 | DE4218863A1 Treating granular material or waste water loaded with heavy metals - by binding metals with chelating agent and passage through ion exchange system |
| 12/14/1993 | US5269905 Apparatus and process to regenerate a trivalent chromium bath |
| 11/16/1993 | US5262018 Metals removal from aqueous peroxy acids or peroxy salts |
| 10/12/1993 | US5252223 Reduction of copper discharge to waste streams contaminated with isothiazolone biocides |
| 10/05/1993 | US5250188 Process of removing and concentrating desired molecules from solutions |
| 09/29/1993 | EP0562709A2 Process for stripping metals from organic complexes |
| 09/29/1993 | EP0562337A1 Determination process for complexed metal ions in a solution |
| 09/21/1993 | US5246591 Separation of metal ions on an anion exchange resin by chromatographic elution |
| 09/14/1993 | US5244856 Polytetraalkylammonium and polytrialkylamine-containing ligands bonded to inorganic supports and processes of using the same for removing and concentrating desired ions from solutions |
| 08/26/1993 | CA2090062A1 Chemical process |
| 08/24/1993 | US5238663 Nickel recovery process |
| 08/03/1993 | US5232995 Copolymerization followed by acid hydrolysis of acetoxy group |
| 07/21/1993 | CN1021657C Transition metal recovery |
| 05/11/1993 | US5210149 Hydrolysis of acetoxy group to hydroxy |
| 05/04/1993 | US5208264 Process for producing an aminophosphoric acid-type chelate resin |
| 04/28/1993 | EP0538315A1 Porous, non-particulate matrix permeable to convection. |
| 04/21/1993 | EP0537586A1 Complexes of boric acid as stationary phase in liquid chromatography |
| 04/15/1993 | WO1993006923A1 Aminoalkylphosphonic acid containing ligands attached to solid supports for removal of metal ions |
| 03/24/1993 | EP0532919A1 Method for removing a heavy metal from a waste stream |
| 03/16/1993 | CA1314503C Detectable molecules, method of preparation and use |
| 03/02/1993 | US5190661 Process of removing ions from solutions using a complex with sulfur-containing hydrocarbons |
| 03/02/1993 | US5190660 Ion complexation by silica-immobilized polyethyleneimines |
| 02/17/1993 | EP0527537A1 Metals removal from aqueous peroxy acids or peroxy salts |
| 02/16/1993 | US5187200 Contacting aqueous solutions with a porous format of an insoluble polymer having multi-valent metal cations bonded to it |
| 02/10/1993 | EP0526469A1 Metal extraction by ion exchange |
| 02/03/1993 | EP0525645A1 Process for producing an aminophosphoric acid-type chelate resin |
| 01/26/1993 | US5182251 Aminoalkylphosphonic acid containing ligands attached to solid supports for removal of metal ions |
| 01/26/1993 | US5182026 Resins having improved exchange kinetics |
| 01/12/1993 | US5179213 Macrocyclic ligands bonded to an inorganic support matrix and a process for selectively and quantitatively removing and concentrating ions present at low concentrations from mixtures thereof with other ions |
| 12/29/1992 | US5175110 Analysis of ions present at low concentrations in solutions containing other ions |
| 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 | US5167942 Incorporation of chelate compound prior to crystallization |
| 10/21/1992 | CN1065466A Method for preparing uniform size ion-exchange resin particles |
| 10/20/1992 | US5156824 Application of diphosphonic derivatives to cation exchange, new diphosphonic derivatives and production process therefor |
| 10/15/1992 | WO1992017403A1 Support bonded polyalkylene-polyamine-poly(carboxylic acid) and extraction of metal ions therewith |
| 10/07/1992 | EP0507490A2 Method for preparing uniform size ion-exchange resin particles |
| 10/07/1992 | EP0507467A1 Resins having improved exchange kinetics |
| 10/03/1992 | CA2064645A1 Method for preparing uniform size ion-exchange resin particles |
| 09/29/1992 | CA2064316A1 Resins having improved exchange kinetics |
| 08/25/1992 | US5141966 Metalchelating, hydrophilic polymer |
| 08/25/1992 | US5141965 Resins having improved exchange kinetics |
| 07/09/1992 | WO1992011088A1 Anion exchanger |
| 07/07/1992 | US5128378 Polyetherthioethersulfone |
| 07/07/1992 | CA1304886C Metal chelate resins |
| 06/11/1992 | WO1992009527A1 Methods for the preparation of molecular sieves, including zeolites, using metal chelate complexes |
| 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 |
| 06/03/1992 | EP0487775A1 Process of removing and concentrating desired molecules from solutions |
| 05/19/1992 | US5114473 Transition metal recovery |
| 05/12/1992 | US5112873 Styrene-divinylbenzene copolymer aminated with an aminopicoline and quaternized with a tertiary amine |
| 04/28/1992 | US5108615 Method for recovery of a metal ion from electroless plating solutions |
| 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 |
| 04/14/1992 | US5104500 Controlling amount of calcium removed from mother liquor before recycling using chelating ion exchange |
| 04/14/1992 | CA1298923C Process for treating waste water containing uranium and fluorine |
| 04/07/1992 | US5102640 Demetallization by complexing with silicate particles having ligands on their surfaces |
| 03/18/1992 | EP0475289A1 Method of recovering nickel |
| 03/14/1992 | CA2051016A1 Nickel recovery process |
| 02/18/1992 | US5089470 Compositions containing poly (γ-glutamylcysteinyl)glycines |
| 02/11/1992 | US5087372 Filtration through membrane having iminodiacetic acid groups bound to resin matrix side chains |
| 01/28/1992 | US5084430 Sulfur and nitrogen containing hydrocarbons and process of using same in separating desired ions from solutions thereof |
| 01/23/1992 | WO1992000805A1 Porous, non-particulate matrix permeable to convection |
| 01/16/1992 | DE4122851A1 Prodn. of porous, non-particulate permeable matrix |
| 01/14/1992 | US5081160 Sulfonation |
| 01/07/1992 | US5078978 Pyridine-containing alkoxysilanes bonded to inorganic supports and processes of using the same for removing and concentrating desired ions from solutions |