| Patents for C25B 15 - Operating or servicing of cells (4,262) |
|---|
| 10/20/1999 | EP0950431A2 Solid electrolyte ion conducting device |
| 10/20/1999 | CN1232512A Electrolysis apparatus for producing halogen gases |
| 10/14/1999 | DE19728772C1 Water electrolysis hydrogen cell shut down by termination of electrical supply |
| 10/12/1999 | US5964991 Sintered laminated structures, electrochemical cells and process for producing such sintered laminated structures |
| 10/12/1999 | CA2099184C Process for the purification of an aqueous solution of an alkaline metal chloride to remove iodine contained herewith |
| 10/06/1999 | EP0946790A1 Electrolysis apparatus for producing halogen gases |
| 10/06/1999 | EP0946789A1 Process for carrying out chemical reactions in an electrochemical cell |
| 10/05/1999 | US5961795 Electrochemical cell having a resilient flow field |
| 09/14/1999 | US5952542 Using metal oxide, metal being selected from group consisting of ruthenium, osmium, irridium and rhodium to oxidize waste organic material; continuously regenrating metal oxide from its lower valency in electrochemical cell |
| 09/14/1999 | US5951845 Demetallization by metal scavenger, electrochemical machining by passing a current through the cell, regenerating the organic hydroxide, recovering from cell; waste recycling |
| 09/14/1999 | US5951842 Recovering silver in photographic solutions |
| 09/10/1999 | WO1999045160A1 Method for electrochemical oxidation of vanadium in aqueous solutions and method to obtain vanadium pentoxide |
| 08/19/1999 | DE19805058A1 Prevention of potential drop on switch-off of bipolar connected water electrolyzer with common electrolyte circuit in water hydrolysis |
| 08/11/1999 | CN1044626C Split type water circulation electrolytic hydrogen prodn. process and equipment |
| 08/04/1999 | EP0932708A1 Electrolysis device |
| 07/28/1999 | CN1224082A Film and oxygen reduction cathode electrolyzer stop method |
| 07/15/1999 | WO1999035704A1 Storage-stable zinc anode-based electrochemical cell |
| 07/15/1999 | WO1998027012A9 Method for the electro-chemical treatment of aqueous solutions and device for realising the same |
| 07/07/1999 | EP0730675B1 Electrochemical conversion of anhydrous hydrogen halide to halogen gas using a cation-transporting membrane |
| 07/06/1999 | US5919348 Modification of the flow resistance of diaphragms |
| 07/06/1999 | CA2174520C Fluorine cell |
| 06/30/1999 | CN1221461A Electrochemical half-cell with pressure compensation |
| 06/16/1999 | EP0922789A1 Shut-down process for membrane electrolytic cell with oxygen reducing cathode |
| 06/08/1999 | US5910237 Process for recovering organic hydroxides from waste solutions |
| 06/03/1999 | WO1999026716A1 Hydraulic magnetically actuated seat valve, especially for motor vehicle braking systems |
| 05/27/1999 | WO1999026305A1 Method for determining materials conversion in electrochemical reactions and electrochemical unit |
| 05/06/1999 | WO1999022037A1 Method for extracting non-ferrous metals such as zinc by electrolysis and by adding substances containing phosphor |
| 04/29/1999 | DE19747328A1 Non-ferrous metal, especially zinc, electrowinning process |
| 04/07/1999 | EP0635072B1 Electrolytic cell assembly and process for production of bromine |
| 03/30/1999 | US5888361 Apparatus for producing hydrogen and oxygen |
| 03/30/1999 | CA2130911C Electrolytic cell for generating sterilization solutions having increased ozone content |
| 03/25/1999 | WO1999014402A1 Electrolysis device |
| 03/24/1999 | EP0902847A1 Electrochemical half-cell with pressure compensation |
| 03/18/1999 | DE19740673A1 Electrolytic unit for electrochemical process, e.g. for producing chlorine from aqueous alkali-halogenide solution |
| 03/09/1999 | US5879632 Apportioning system |
| 03/02/1999 | US5876583 Method for excluding a malfunctioning elementary cell in a membrane electrolyzer or electrochemical generator |
| 02/18/1999 | WO1999007919A1 Method and apparatus for generating a gas |
| 02/11/1999 | DE19752111C1 Water softener process and assembly |
| 02/10/1999 | EP0896074A1 Method for controlling the operation of mercury- cathode cells |
| 02/10/1999 | CN1207363A Nitric acid based chlorine dioxide generation |
| 02/09/1999 | US5868916 Process for recovering organic hydroxides from waste solutions |
| 02/02/1999 | US5865963 Insulator for electro-refining systems |
| 01/27/1999 | EP0892678A1 Apportioning system |
| 01/26/1999 | CA2029689C Purification of chlor-alkali membrane cell brine |
| 01/21/1999 | WO1999002761A1 Electrolysis device |
| 01/19/1999 | CA2006611C Process for the reduction of perchlorate in electrolytes used for the production of chlorate |
| 01/14/1999 | DE19750738C1 Material conversion determination in surface electrochemical reaction |
| 01/14/1999 | DE19729429C1 Elektrolysevorrichtung Electrolyzer |
| 01/12/1999 | CA2095063C Method for separating impurities from an aqueous alkali metal chlorate electrolyte |
| 12/27/1998 | CA2241846A1 Hydrogen generating apparatus |
| 12/27/1998 | CA2209237A1 Hydrogen generating apparatus |
| 12/24/1998 | DE19726531A1 Electrolysis of aqueous alkali chloride solution |
| 12/23/1998 | EP0885986A2 Electrolysis apparatus with monitoring device |
| 12/23/1998 | EP0885848A1 Method for the electro-chemical treatment of aqueous solutions and device for realising the same |
| 12/16/1998 | CN1201710A Apparatus and process for electrodialysis of salts |
| 12/10/1998 | WO1998055670A1 Ion exchange membrane bipolar electrolyzer |
| 12/10/1998 | CA2291095A1 Ion exchange membrane bipolar electrolyzer |
| 12/09/1998 | EP0882815A1 Electrochemical plant |
| 12/01/1998 | US5843297 Electrolysis process and apparatus |
| 11/24/1998 | US5840266 Dehydration of fluoride mixtures |
| 11/24/1998 | US5840172 Direct current hydrogen generator, system and method |
| 11/24/1998 | CA2037718C Sulfate removal from alkali metal chlorate solutions and production of alkali metal chlorate including said removal |
| 11/18/1998 | CN2297455Y 卧式气体分离器 Horizontal gas separator |
| 11/18/1998 | CN1199350A Method of oxidation |
| 11/18/1998 | CN1040738C Process for purification of aqueous solution of alkali chloride to remove iodine |
| 11/11/1998 | EP0876180A1 A method of oxidation |
| 11/05/1998 | WO1998049369A1 Plant for manufacturing gas by electrolysis |
| 10/21/1998 | EP0872578A1 Electrochemical half-cell |
| 10/21/1998 | CN1196404A Electrochemical half-cell |
| 10/14/1998 | CA2234516A1 Electrochemical half-cell |
| 10/01/1998 | WO1998042893A1 Direct current hydrogen generator, system and method |
| 09/30/1998 | EP0866768A1 Process for preparing siliceous alkali salt solutions |
| 09/29/1998 | CA2016246C Preventing crevice corrosion of titanium surfaces |
| 09/23/1998 | EP0865517A1 Method for starting a chlor-alkali diaphragm cell |
| 09/15/1998 | US5807473 Electrolytic water treatment |
| 09/09/1998 | CN2290611Y Electrolytic alkali liquid energy saving evaporation appts. by diaphragm process |
| 09/08/1998 | US5804055 Electrode, electrochemical cell and electrochemical processes |
| 08/20/1998 | WO1998035748A1 Process for recovering organic hydroxides from waste solutions |
| 08/05/1998 | EP0856597A1 Process for monitoring the electrolyte circulation in an electrolysis cell |
| 07/29/1998 | EP0826077A4 Electrode, electrochemical cell and electrochemical processes |
| 07/28/1998 | US5785841 Method of removing sulfur dioxide and nitrogen oxides from a gaseous stream |
| 07/28/1998 | CA2143447C Feeding system of electrolysis liquid for pressurized electrolysis apparatus used in producing hydrogen |
| 07/23/1998 | CA2227398A1 Apparatus and process for electrodialysis of salts |
| 07/21/1998 | US5783050 Porous, flow-through, fiber-free electrode comprising rigid core, springy wrapping of multitude of expanded valve metal layers |
| 07/16/1998 | WO1998030737A1 Cell cover for electrolytic cells |
| 07/16/1998 | WO1998030736A1 Wall-covering for electrolytic cells |
| 07/16/1998 | DE19700534A1 Zellendeckel für Elektrolysezellen Cell cover for electrolytic cells |
| 07/16/1998 | DE19700533A1 Wandverkleidung für Elektrolysezellen Wall covering for electrolysis cells |
| 07/16/1998 | CA2277435A1 Cell cover for electrolytic cells |
| 07/16/1998 | CA2277026A1 Wall-covering for electrolytic cells |
| 07/14/1998 | US5779866 Electrolyzer |
| 07/08/1998 | EP0852267A2 Fluorine cell |
| 07/07/1998 | US5776328 Apparatus and process for electrochemically decomposing salt solutions to form the relevant base and acid |
| 07/02/1998 | DE19653034A1 Electrochemical cell for producing oxygen or ozone from water |
| 06/25/1998 | WO1998027012A1 Method for the electro-chemical treatment of aqueous solutions and device for realising the same |
| 06/16/1998 | US5766442 Electrode regeneration |
| 06/16/1998 | US5766438 Periodically inverting polarity of electrodes at short intervals |
| 06/16/1998 | US5766427 Electrolyzer with reduced parasitic currents |
| 06/11/1998 | WO1998024949A1 Process for carrying out chemical reactions in an electrochemical cell |
| 06/10/1998 | EP0846789A1 Process for modifying the permeability of diaphragms |