| Patents for B01J 49 - Regeneration or reactivation of ion-exchangers; Apparatus therefor (2,835) |
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| 04/16/2002 | US6372143 Purification of produced water from coal seam natural gas wells using ion exchange and reverse osmosis |
| 04/10/2002 | EP1194238A1 Selective separation of iron by treatment with an ion-exchanging resin comprising diphosphonic acid groups |
| 04/10/2002 | EP1194212A1 Process for the reclamation of spent alkanolamine solution |
| 04/10/2002 | CN1344229A Water purification process |
| 04/09/2002 | CA2223883C Process for regeneration of ion-exchange resins used for sugar decolorization |
| 04/04/2002 | WO2002026383A2 Systems and methods for regeneration of mixed bed demineralizers |
| 04/04/2002 | WO2002026344A1 Purification of produced water from coal seam natural gas wells using ion exchange and reverse osmosis |
| 04/04/2002 | DE10056629C1 Production of a nickel-containing solution consisting of a phosphating bath overflow and/or rinsing water comprises phosphating using an acidic phosphatizing solution and optionally further metal ions and an accelerator |
| 04/04/2002 | CA2423615A1 Purification of produced water from coal seam natural gas wells using ion exchange and reverse osmosis |
| 04/03/2002 | EP1193242A1 Method for recovering fluorinated alkanoic acids from waste waters |
| 04/03/2002 | EP0983117B1 Controlling recharging of water conditioning apparatus |
| 04/03/2002 | CN1343285A Water softener valve |
| 03/26/2002 | US6362240 Purification system for deionization and decoloration of starch sugars using ion-exchange resins; amphoteric compounds adsorbed by strongly acidic cation exchange resin |
| 03/19/2002 | US6358421 Mixing citric acid with a regenerant comprising carbonic acid; providing a supply of mixture of citric acid and regenerant under pressure into the tank; introducing mixture into tank in an opposite flow direction to treatment flow direction |
| 03/19/2002 | US6358396 Regeneration of anion exchange resins by catalyzed electrochemical reduction |
| 03/07/2002 | WO2002018029A1 Method for separating multivalent metal ions |
| 03/07/2002 | US20020027107 Method for purifying and neutralizing polluted liquids and apparatus for implementing the method |
| 03/07/2002 | CA2421250A1 Method for separating multivalent metal ions |
| 02/21/2002 | WO2002014850A1 A process and device for continuous ionic monitoring of aqueous solutions |
| 02/21/2002 | WO2002014223A1 Method of separating anionic fluorochemical surfactant |
| 02/21/2002 | US20020020671 Contacting with a H+ type cation exchange resin, a carbonate ion (CO32-) or bicarboante ion(HCO3-) anion exchange resin, and then a H+ type cation exchange resin |
| 02/14/2002 | US20020017495 Water softening device |
| 02/07/2002 | US20020014459 Method of regenerating ion exchange resin |
| 02/06/2002 | EP1177027A1 Water softener tank |
| 01/31/2002 | US20020012626 Adding flocculating agent to aqueous hydrogen peroxide solution containing silicon oxide impurities, and filtering out impurities of solid content with a precision filter, contacting with anion exchange resin |
| 01/31/2002 | US20020011446 Process for modifying the metal ion sorption capacity of a medium and modified medium |
| 01/29/2002 | CA2194293C Method and device for the disposal of a cation exchanger |
| 01/24/2002 | WO2002006163A1 Improved electrodeionization system |
| 01/24/2002 | WO2002005959A2 Adsorption method and ligands |
| 01/24/2002 | US20020008067 Accessible well for brine tank |
| 01/23/2002 | EP1174393A1 A water softening system |
| 01/23/2002 | CN1332036A Formed sodium ion soft water processing resin regenerating agent |
| 01/22/2002 | US6340712 Non-chloride containing regenerant composition for a strong acid cation exchange resin of a water softener |
| 01/09/2002 | CN1330036A Method for producing purified aqueous hydrogen peroxide solution |
| 01/09/2002 | CN1330035A Method for producing purified aqueous hydrogen peroxide solution |
| 01/09/2002 | CN1329942A Method for regeneration of ion-exchange resin |
| 01/03/2002 | WO2002000551A2 A process and apparatus for brine purification |
| 01/02/2002 | EP1167289A2 Process for producing a purified aqueous hydrogen peroxide solution |
| 01/02/2002 | EP1167288A2 Process for producing a purified aqueous hydrogen peroxide solution |
| 01/02/2002 | EP1166872A2 Method of regenerating ion exchange resin |
| 01/02/2002 | EP1166643A1 Process for separating and recovering protein and isoflavones from a plant material |
| 01/02/2002 | EP1165443A1 Water purification process |
| 12/27/2001 | US20010054966 System for monitoring the status of a water softener |
| 12/20/2001 | US20010052496 Bifunctional phenyl monophosphonic/sulfonic acid ion exchange resin and process for using the same |
| 12/18/2001 | US6331261 Water softener salt formulation |
| 12/18/2001 | US6331255 Accessible well for brine tank |
| 12/13/2001 | WO2001094015A1 Regeneration of weakly basic anion exchange resins with a combination of alkali metal |
| 12/13/2001 | WO2001094014A1 Method of preparing fixed bed of acid cation-exchange resin |
| 12/12/2001 | EP1161291A1 Process for removing hydrocarbons from a liquid mixture with a regenerable filter |
| 12/12/2001 | EP0823866B1 Process for separating zinc ions from autodeposition compositions |
| 12/05/2001 | EP1160204A2 Water treatment |
| 12/05/2001 | EP0991786B1 Separating metal ions absorbed on a resin and installation for recycling photographic effluents including an exchanger and an electrolysis vessel |
| 11/22/2001 | WO2001088016A1 Method for separating alkali metal ions from alkoxylates |
| 11/22/2001 | DE10024313A1 Removal of alkali metal ions (production catalyst residues) from alkoxylates uses cation exchangers to give products sufficiently pure and combustible for use as fuel additives |
| 11/15/2001 | WO2001038227A3 A method for anion-exchange adsorption and anion-exchangers |
| 11/14/2001 | CN1321640A Method for separating and recovery of protein and isoflavone from plant raw material |
| 11/08/2001 | US20010037976 Regeneration and reuse of absorption media, zinc hydroxide, ion exchange resin |
| 11/01/2001 | US20010035353 Flushing solution |
| 10/31/2001 | EP1149051A1 Sludge-free treatment of copper cmp wastes |
| 10/30/2001 | US6309532 Method and apparatus for capacitive deionization and electrochemical purification and regeneration of electrodes |
| 10/25/2001 | US20010033816 Using metal hydroxides |
| 10/25/2001 | DE10058218A1 Water softener, especially built-in water softener in automatic dishwasher, has electrodes for measuring conductivity alongside one another and immersed in ion exchanger container at different heights |
| 10/24/2001 | EP1147814A2 Method and apparatus for countercurrent regeneration of an ion exchange resin bed |
| 10/24/2001 | EP1147736A2 A system for monitoring the status of a water softener |
| 10/24/2001 | EP0840805B1 Process for regeneration of ion-exchange resins used for sugar decolorization |
| 10/24/2001 | CN1073466C Electrical ion exchange resin regenerating method and equipment |
| 10/23/2001 | US6306282 Sludge-free treatment of copper CMP wastes |
| 10/11/2001 | WO2001074489A1 Method for preparing acidic cation exchange resin fixed bed for producing bisphenols |
| 10/11/2001 | WO2001074488A1 Method for preparing acidic cation exchange resin fixed bed for producing bisphenols |
| 10/11/2001 | DE10015113A1 Verfahren zur Entfernung von Bestandteilen, wie Schwebstoffen und kolloidalen Verbindungen aus wässrigen Lösungen A method for removing components such as particulate matter and colloidal compounds from aqueous solutions |
| 10/10/2001 | CN1072609C Regeneration method of weak-type bed resin in wate rtreatment desalt system |
| 10/04/2001 | EP1138366A2 Method for separating components such as suspended materials and colloidal compounds from solutions |
| 10/04/2001 | EP1137488A1 Device for regenerating an ion exchange cartridge |
| 10/02/2001 | US6296772 Purification of sweetener solutions from corn wet milling plants; cationic and anionic polymers connected in series and parallel circuits; high capacity hydraulics; adsorption |
| 10/02/2001 | US6296761 Water treatment process |
| 09/27/2001 | US20010023841 Controller for salt dosage for a water softener and method of regenerating a water softener |
| 09/25/2001 | US6293298 Water softener valve |
| 09/19/2001 | CN1313145A Regenerating agent for sodium or ammonium ionic resin |
| 09/18/2001 | US6290845 Water softener tank |
| 09/11/2001 | US6287474 Liquid treatment media regeneration apparatus and process |
| 09/11/2001 | US6287457 Water treatment device having volumeter driven monitoring discs |
| 09/06/2001 | DE10010739A1 Ionentauscheranlage Ion exchanger system |
| 09/05/2001 | EP1129777A2 Ion exchange apparatus |
| 09/04/2001 | US6284132 Brine fill apparatus for water softener |
| 09/04/2001 | CA2115640C Rotary flow control valve |
| 08/28/2001 | US6281255 Methods for regeneration of weakly basic anion exchange resins with a combination of an alkali metal carbonate and an alkali metal bicarbonate |
| 08/28/2001 | US6280599 Positioning ion exchange material between an anode and cathode electrode; supplying water; applying electric potential between electrodes; removing salts formed |
| 08/23/2001 | WO2001060516A1 Dual mode water softener |
| 08/16/2001 | WO2001058990A1 A non-chloride containing regenerant composition for a strong acid cation exchange resin of a water softener |
| 08/16/2001 | WO2001021269A3 Carbon dioxide absorption unit and regeneration method for said unit |
| 08/08/2001 | CN1069227C 树脂处理系统 Resin processing systems |
| 08/07/2001 | US6270675 Method for using a weak acid resin to remove dissolved metals from an aqueous-based stream |
| 08/02/2001 | DE10003890A1 Verfahren und Vorrichtung zum Aufbereiten von Wasser Method and apparatus for treating water |
| 08/01/2001 | CN1069068C Method for reactivation of ion-exchange resin |
| 07/26/2001 | US20010009237 Automatic cleaning of through turbulence and abrasion; rotatable valve plate allowing service, backwash, flush, off and/or bypass operational modes |
| 07/25/2001 | EP1118589A2 Method and system for on-site halogen treatment of aqueous solutions |
| 07/25/2001 | EP1118585A2 Electrolytic process and apparatus for the controlled oxidation or reduction of inorganic and organic species in aqueous solutions |
| 07/25/2001 | EP1117466A1 Bifunctional phenyl monophosphonic/sulfonic acid ion exchange resin and process for using the same |
| 07/25/2001 | CN1304889A Water treatment method and device |
| 07/17/2001 | CA2052042C Low salt level sensor |