| Patents for B01J 49 - Regeneration or reactivation of ion-exchangers; Apparatus therefor (2,835) |
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| 10/10/1989 | CA1262300A1 Interface beads for mixed-bed ion exchange resins |
| 10/03/1989 | US4871463 Vertical reaction vessel |
| 09/26/1989 | CA1261435A1 System for treating fluids |
| 09/21/1989 | DE3807901A1 Process and apparatus for regenerating a softener |
| 09/13/1989 | EP0331783A1 Process and apparatus for decoloring and/or neutralising alkaline waste waters and for decreasing their salt content, particularly for purifying effluents from the textile industry |
| 09/13/1989 | EP0286698B1 Process for removing heavy metal and/or alkali metal cations from aqueous solutions by means of an ion exchange material |
| 09/12/1989 | CA1259196A1 Method for eluting a metal adsorbed on an chelating agent |
| 09/05/1989 | US4863612 Apparatus and method for recovering materials from process baths |
| 08/30/1989 | EP0330623A1 Process and apparatus for the discontinuous ion exchange treatment of salt-containing liquids |
| 08/29/1989 | US4861490 Removal of cationic impurities from inorganic solutions |
| 07/27/1989 | DE3900754A1 Process and apparatus for the separation of suspended matter adhering to a packing |
| 07/19/1989 | EP0324024A1 Process and device for regenerating ion-exchange material |
| 07/11/1989 | US4847598 Water treatment regeneration system incorporating alternating current excitation and paired operational amplifiers with asymmetrical feedback elements |
| 06/27/1989 | CA1256384A1 Process for continuous removal of ammoniacal nitrogen from aqueous streams |
| 06/13/1989 | US4839086 Composition for regenerating cation exchange resin |
| 06/13/1989 | CA1255819A1 Process for reducing the wash water requirement of weakly basic anion exchangers |
| 06/13/1989 | CA1255818A1 Liquid treating installation and process, namely for the demineralisation of water passing through a dense bed of active granular material in the upper stage, and periodic counterflow regeneration |
| 06/06/1989 | CA1255442A1 Inert separator beads for regeneration of mixed bed ion exchange resins |
| 04/25/1989 | US4824575 Ion-exchanging |
| 04/06/1989 | DE3731096A1 Apparatus for softening water |
| 03/30/1989 | DE3805813A1 Verfahren und vorrichtung zur regeneration von ionenaustauschermaterial Method and device for regeneration of ion exchange |
| 03/29/1989 | EP0308523A1 Method of measuring the degree of activity of an ion exchange filter |
| 03/29/1989 | EP0308521A1 Process to separate unwanted organic materials and inorganic anions from sugar solutions |
| 03/21/1989 | US4814090 Electrical conductivity |
| 02/21/1989 | US4806236 Apparatus for upflow ion exchange |
| 02/21/1989 | CA1250378A1 Method of removing carbon-14 from particulate, ion exchange resin |
| 01/26/1989 | WO1989000453A1 Process and device for regenerating ion-exchange material |
| 01/03/1989 | US4795565 Ion exchange resins |
| 12/14/1988 | CN88103696A Treating apparatus and technology for sodium-ion exchanging water without electric consuming |
| 11/22/1988 | US4786481 Method for eluting a metal adsorbed on a chelating agent |
| 11/17/1988 | EP0291330A2 Ground-water treatment |
| 10/20/1988 | DE3710511A1 Device for controlling the salt feed rate in the regeneration of water softening systems |
| 10/19/1988 | EP0286699A1 Process for the removal of cations of an earth alkali metal species from aqueous solutions by means of an ion exchange material |
| 10/19/1988 | EP0286698A1 Process for removing heavy metal and/or alkali metal cations from aqueous solutions by means of an ion exchange material |
| 10/12/1988 | EP0285764A1 Device for controlling the amount of brine in the regeneration of ion exchangers |
| 10/11/1988 | CA1243136A1 Method and apparatus for withdrawing a layer of material from a vessel |
| 10/06/1988 | DE3808633A1 Method for producing dissolved salts and acids by ion exchanger resins |
| 09/28/1988 | EP0283703A1 Process for regenerating ion exchangers |
| 09/28/1988 | EP0283558A2 Process for regenerating ion exchangers and use of the regenerate in agriculture |
| 09/13/1988 | US4770790 Using nonionic surfactant and biodispersant |
| 08/18/1988 | DE3703254A1 Mixing apparatus for salt brine and fresh water |
| 08/17/1988 | CN85100138B Method of regenerating radioactive ion exchange resin with carbon dioxide |
| 08/09/1988 | CA1240419A1 Process and device for treating liquids with cation exchangers and anion exchangers |
| 08/02/1988 | CA1240078A1 Method for cleaning organically fouled anion exchange resins |
| 07/12/1988 | US4756833 Metal-containing waste water treatment and metal recovery process |
| 07/06/1988 | EP0273339A2 Method of separating and transferring ion-exchange resin |
| 06/28/1988 | US4753736 Using aqueous solution of citrate salt of volatile amine |
| 06/28/1988 | US4753681 Sodium percarbonate solution |
| 06/16/1988 | DE3506042A1 Control even for only partially discharged water treatment units having measuring and/or inspection points for the water and/or the exchanger batch for matching the regular regeneration to the respective degree of exhaustion of the overall exchanger batch |
| 06/15/1988 | EP0271065A2 Method and apparatus for treating fluids |
| 06/09/1988 | DE3640881A1 Process and apparatus for water softening |
| 06/07/1988 | CA1237832A1 Method for removing and recovering nutrients from wastewater |
| 05/17/1988 | US4745134 Inert separator beads for regeneration of mixed bed-ion exchange resins |
| 05/03/1988 | US4741824 Apparatus for continuous elution and absorption |
| 04/27/1988 | EP0265031A1 Apparatus and method for conditioning water |
| 04/12/1988 | US4737275 Resin pressure sensor for water treatment |
| 03/08/1988 | CA1233919A1 Microcomputer controlled demand/scheduled water softener having automatic resin bed sensing |
| 02/23/1988 | CA1233026A1 Process for eluting indium from a chelate resin containing adsorbed indium |
| 02/11/1988 | DE3626736A1 Salt storage vessel for a water-softening device |
| 02/02/1988 | US4722797 Method for regeneration of a water softener |
| 01/12/1988 | US4719010 Regeneration |
| 01/07/1988 | DE3622019A1 Apparatus for the preparation of brine for the regeneration of an ion exchanger |
| 01/07/1988 | DE3621928A1 Water softening apparatus |
| 12/29/1987 | CA1230741A1 Regeneration of thiocyanate resins |
| 12/23/1987 | EP0249925A1 Method for generating acid and base regenerants and use thereof to regenerate ion-exchange resins |
| 11/24/1987 | US4708794 Installation and apparatus for treating a liquid, in particular for demineralizing water passing through a bed of active granular material which is compacted in a high position and which is periodically regenerated by a reverse flow |
| 11/10/1987 | US4705637 Process for reducing the wash water requirement of weakly basic anion exchangers |
| 11/03/1987 | CA1228940A1 Method for cleaning organically fouled anion exchange resins |
| 10/14/1987 | EP0240725A2 Resin pressure sensor for water treatment |
| 10/13/1987 | US4699714 Ion exchange apparatus |
| 10/06/1987 | US4698153 Supercritical carbon dioxide to remove projections from resin surface |
| 09/29/1987 | US4696953 Scavengers for the removal of impurities from arsine and phosphine |
| 09/29/1987 | US4696720 Removal of water from aqueous alcohol mixtures |
| 09/09/1987 | EP0236066A2 Purification of alkali metal chloride solution |
| 08/18/1987 | US4687581 Method of separating and purifying cations by ion exchange with regenerable porous glass |
| 08/18/1987 | US4687561 Process and apparatus for treatment of fluids, particularly demineralization of aqueous solutions |
| 08/04/1987 | US4684464 Water, purification |
| 07/01/1987 | EP0226667A1 Process for reducing the nitrate content in water |
| 06/30/1987 | CA1223438A1 Salt composition |
| 06/25/1987 | DE3538651A1 Process for the preparation of water which is suitable for irrigation purposes and for making solutions and dispersions of plant food and crop protection products |
| 06/23/1987 | US4675108 Apparatus for treating wash water from the manufacture of terephthalic acid |
| 06/19/1987 | DE3543661A1 Process for water treatment upstream of a reverse osmosis plant |
| 06/11/1987 | DE3543439A1 Method for neutralising the eluates from an ion exchange, and ion exchanger system for implementing the method |
| 06/09/1987 | US4671879 Process for reducing the nitrate content in water |
| 06/09/1987 | CA1222850A1 Additive for water treatment mineral bed |
| 06/09/1987 | CA1222620A1 Method and compositions for cleaning organically fouled anion exchange resins |
| 05/27/1987 | EP0223596A2 Hydration of sulfonated cation exchange resins |
| 05/26/1987 | US4668402 System for treating fluids |
| 05/26/1987 | US4668386 Water quality monitor |
| 05/20/1987 | EP0222180A2 Process and apparatus for backwashing a solid-bed ion exchanger |
| 05/19/1987 | US4666608 Method for rendering visible the line of separation between cation exchangers and anion exchangers in mixed-bed filters |
| 05/12/1987 | US4664811 Prevention of iron fouling of ion exchange resins |
| 05/05/1987 | US4663051 Regeneration of mixed bed demineralizers |
| 05/05/1987 | CA1221499A1 Alkylaminophosphonic chelating resins, their preparation and use in purifying brines |
| 04/29/1987 | EP0219968A2 Electrolytic process for producing extremely low chloride anion exchange resins |
| 04/29/1987 | EP0219704A1 Dishwasher having a water softener and a regenerator device therefor |
| 04/22/1987 | EP0219414A1 Regeneration of an ion exchange resin bed for the removal of nitrates from water |
| 04/21/1987 | US4659552 Scavengers for the removal of impurities from arsine and phosphine |
| 04/21/1987 | US4659476 Decompaction, washing, and percolation through ion exchanger |
| 03/19/1987 | DE3533098A1 Apparatus for water softening |