| Patents for C25B 15 - Operating or servicing of cells (4,262) |
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| 06/01/1993 | US5215632 Adding calcium chloride and phosphate to form precipitate, separating, adding carbonate, separating second precipitate |
| 05/26/1993 | EP0543428A1 Electrolysis apparatus with protective electrodes |
| 05/19/1993 | CN1072220A Gas making machine with electromagnetic water |
| 05/13/1993 | DE4137022A1 Regeneration of sulphuric acid, per:oxo:di:sulphate etching solns. contg. copper - by using a process requiring no interruptions for accumulated copper@ removal |
| 05/05/1993 | EP0540080A1 Electrolysis cell for gas production |
| 04/29/1993 | WO1993007985A1 Method and system for electrolytically obtaining gas for gas-plasma technology |
| 04/28/1993 | EP0538474A1 Electrolytic vessel for producing hypochlorite |
| 04/27/1993 | US5205994 Electrolytic ozone generator |
| 04/27/1993 | US5205911 Cathode and separator subjected to heat treatment during cell shutdown |
| 04/24/1993 | CA2080519A1 Electrolysis cell for gas production |
| 04/20/1993 | US5203972 Feeding raw water only to cathode chamber, producing ozone in anode chamber; solid electrolyte partition |
| 04/20/1993 | CA1316486C Automatic control process for electrolytic cells |
| 03/30/1993 | CA1315233C Process for the preparation of potassium nitrate |
| 03/24/1993 | EP0532535A1 Electrochemical production of acid chlorate solutions. |
| 03/23/1993 | CA1314688C Stripping and recovery of dichromate in electrolytic chlorate systems |
| 03/18/1993 | WO1993005204A1 Electrochemical reduction of a catholyte in an angled electrolytic cell |
| 03/18/1993 | WO1993005202A1 Cell for direct electrochemical reduction of catholyte |
| 03/17/1993 | EP0531408A1 Electrochemical synthesis and simultaneous purification process |
| 03/16/1993 | US5194132 Electrolytic cells for chlorine, sodium hydroxide and hydrogen production |
| 02/16/1993 | US5186805 Electrolytic dispensing device |
| 02/16/1993 | US5186804 Liquid metal cathode electrochemical cell |
| 01/26/1993 | US5181994 From ferrochrome; electrolysis |
| 01/20/1993 | EP0523669A1 Electrolyzer |
| 01/14/1993 | DE4120679A1 Verfahren zum effektiven betreiben von elektrolysezellen und elektrolysezelle fuer gasentwickelnde und gasverbrauchende elektrolytische prozesse Method for effectively run by electrolysis cell and electrolysis cell for gas-producing and gas-consuming electrolytic processes |
| 01/13/1993 | EP0522382A1 Apparatus and process for electrochemically decomposing salt solutions to form the relevant base and acid |
| 01/13/1993 | CN1067931A Process and apparatus for electrochemically decomposing salt solutions to form relevant base and acid |
| 01/13/1993 | CN1067865A Method of purifying alkali metals chlorides equeous solution by removing ammonium and iodine |
| 01/07/1993 | WO1993000460A1 Apparatus and process for electrochemically decomposing salt solutions to form the relevant base and acid |
| 01/07/1993 | WO1993000459A1 Electrolytic cell and capillary slit electrode for gas-developing or gas-consuming electrolytic reactions and electrolysis process therefor |
| 01/07/1993 | EP0521386A2 Electrolyzer and its production |
| 01/07/1993 | CA2112100A1 Apparatus and process for electrochemically decomposing salt solutions to form the relevant base and acid |
| 01/07/1993 | CA2111689A1 Electrolytic cell and capillary gap electrode for gas-developing or gas-consuming electrolytic reactions and electrolysis process therefor |
| 01/05/1993 | US5176801 Electrolysis, ion exchange |
| 12/29/1992 | US5174868 Chlorine dioxide generation from chloric acid |
| 12/24/1992 | DE4120606A1 Electrochemical prodn. of metal-contg. electrolyte - includes using metal as working electrode in cell, avoids passivation reactions |
| 12/23/1992 | WO1992022681A1 Electrolysis cell for gas-emitting or gas-dissipating electrolytic processes and process for running the electrolysis cell |
| 12/23/1992 | CA2110912A1 Electrolysis cell for gas-developing or gas-consuming electrolytic processes as well as method for operating the electrolysis cell |
| 12/16/1992 | EP0518727A1 Process for purifying an aqueous alkali meta chloride solution by removing ammonium and iodine |
| 12/15/1992 | CA1311443C Method for extending service life of a hydrogen-evolution electrode |
| 12/02/1992 | CN2123537U Multiple-hole side-in-and side-out electrolytic deposition cell |
| 12/01/1992 | US5167939 Process for removing calcium and magnesium ions from an aqueous alkali chloride solution for use in membrane electrolysis |
| 11/25/1992 | CN1019207B Process for continuous preparation of perchlorate of alkali metal |
| 11/19/1992 | DE4115556A1 Prodn. of strong electrolytic current in electrode areas - e.g. by rotation of a propeller to feed and discharge electrolyte having current cross=section at least as great as sum of current cross=sections of electrode areas |
| 11/17/1992 | CA1310299C Membrane electrolytic cell with balancing header |
| 11/04/1992 | CN2120805U Intelligence controlled gas generator |
| 10/13/1992 | US5154805 Method of preparing chlorate |
| 10/07/1992 | CN1065104A Device for removal of gas-liquid mixtures from electrolysis cells |
| 09/30/1992 | EP0505945A1 Device for removal of gas-liquid mixtures from electrolysis cells |
| 09/29/1992 | CA1308034C Dechlorination of aqueous alkali metal chloride solution |
| 09/22/1992 | CA2063192A1 Device for removal of gas-liquid mixtures from electrolysis cells |
| 09/17/1992 | WO1992015725A1 Electrolytic vessel for producing hypochlorite |
| 08/25/1992 | US5141618 Frame unit for an electrolyser of the filter press type and electrolysers of the filter-press type |
| 08/19/1992 | EP0499593A1 Structure of electrochemical cell for wetting diaphragm of solid polymer electrolyte |
| 08/19/1992 | EP0498919A1 Purification of chlor-alkali membrane cell brine |
| 08/18/1992 | US5139635 Electrolyser for the production of a gas |
| 08/05/1992 | EP0497727A1 Electrolytic dispensing device |
| 07/15/1992 | EP0494359A2 Cathode restoration |
| 07/01/1992 | EP0493331A1 Method for electrolytic ozone generation and apparatus thereof |
| 07/01/1992 | EP0492612A2 Electrolyzer and method of operating same |
| 07/01/1992 | CN1017266B Selective removal of chlorine from solutions of chlorine dioxide and chlorine |
| 06/30/1992 | US5126019 Refrigeration, crystallization to remove sodium sulfate from depleted brine before regeneration |
| 06/27/1992 | CA2058527A1 Electrolyzer and method of operating same |
| 06/25/1992 | WO1992010838A1 Energy/matter conversion methods and structures |
| 06/25/1992 | CA2095734A1 Energy/matter conversion methods and structures |
| 06/23/1992 | US5124009 Consumption of hypochlorite values contained in chlorate solutions of electrolysis |
| 06/03/1992 | EP0488251A1 Process for removing chlorate salt from aqueous alkali chloride solution |
| 05/29/1992 | CA2056243A1 Process for removing chlorate salt from aqueous alkali chloride solution |
| 05/12/1992 | US5112464 Apparatus to control reverse current flow in membrane electrolytic cells |
| 05/05/1992 | CA1300224C Method for detecting defective ion exchange membranes in monopolar and bipolar electrolyzers |
| 04/28/1992 | US5108722 Sulfate removal from chlorate liquor |
| 04/14/1992 | US5104500 Controlling amount of calcium removed from mother liquor before recycling using chelating ion exchange |
| 04/14/1992 | US5104497 Compensating for hydrostatic pressure between upper and lower ends of electrolyte spaces by reducing hydrodynamic pressure |
| 04/08/1992 | EP0478980A1 Process for operating a pressure electrolysis plant |
| 03/24/1992 | US5098671 Ozonizer utilizing a magnetic field |
| 03/20/1992 | CA2051859A1 Process for operating a pressure electrolysis apparatus |
| 03/18/1992 | CN1059569A Electrochemical processing of aqueous solutions |
| 03/17/1992 | US5096548 dissolving ferrochrome in sulfuric acid, crystallization, filtration, precipitation of chromium hydroxide, electrolysis |
| 03/05/1992 | WO1992003374A1 Chlorine dioxide generation from chloric acid |
| 03/04/1992 | CN1059173A Chlorine dioxide generation from chloric acid |
| 03/03/1992 | US5093089 From chromium species, acidification, crystallization |
| 02/25/1992 | CA1296293C Electrolytic cell |
| 02/25/1992 | CA1296292C Electrolytic cell |
| 02/20/1992 | DE4025803A1 Electrolytic hydrogen prodn. appts. - including transmitter to increase hydrogen yield |
| 02/19/1992 | EP0471485A1 Electrolytic cell and control of current leakage |
| 02/18/1992 | CA2048733A1 Electrolytic cell and control of current leakage |
| 02/12/1992 | EP0470662A1 Process for the fine purification of an aqueous sodium chloride solution for membrane electrolysis |
| 02/11/1992 | US5087343 Electrolytic cell heads comprised of bulk polymerized cycloolefin monomers |
| 02/11/1992 | US5087335 Heat exchanging, hydration with aqueous solution |
| 01/29/1992 | CN1058241A Electrolytic cell heads comprised of bulk polymerized cycloolefin monomers |
| 01/29/1992 | CN1058240A Process for separation of sulphate |
| 01/21/1992 | US5082544 Apparatus for gas generation |
| 01/09/1992 | WO1991019020A3 Electrochemical synthesis and simultaneous purification process |
| 01/02/1992 | EP0463739A1 Apparatus comprising a plurality of electrolytic cells |
| 01/02/1992 | DE4020722A1 Water electrolysis process control - by regulating prod. gas pressures to identical constant values |
| 01/02/1992 | DE4020721A1 Water electrolysis process control - by current regulation according to prod. gas withdrawal or pressure |
| 12/27/1991 | EP0462825A1 Container system |
| 12/24/1991 | US5074974 Ion exchanging |
| 12/18/1991 | CN1015088B Method for stripping and recovery of chromate from chlorate production system by electrolysis |
| 12/12/1991 | WO1991019022A1 Electrolytic cell heads comprised of bulk polymerized cycloolefin monomers |
| 12/12/1991 | WO1991019020A2 Electrochemical synthesis and simultaneous purification process |