Class / Patent application number | Description | Number of patent applications / Date published |
205350000 | Treating electrode, diaphram, or membrane during synthesis (e.g., corrosion prevention, etc.) | 22 |
20080251392 | Process For Changing an Anode In an Electrolytic Aluminium Production Cell Including Adjustment of the Position of the Anode and Pot Tending Machine For Implementing It - The purpose of the invention is a process for changing an anode of a cell for the production of aluminium by fused bath electrolysis ( | 10-16-2008 |
20080257749 | Method For Improving The Performance of Nickel Electrodes - The invention relates to a method for improving the performance of nickel electrodes in alkali chloride electrolysis by adding water-soluble platinum compounds to the catolyte. | 10-23-2008 |
20080283412 | PEM water electrolysis for oxygen generation method and apparatus - A PEM based water electrolysis stack consists of a number of cells connected in series by using interconnects. Water and electrical power (power supply) are the external inputs to the stack. Water supplied to the oxygen electrodes through flow fields in interconnects is dissociated into oxygen and protons. The protons are transported through the polymer membrane to the hydrogen electrodes, where they combine with electrons to form hydrogen gas. If the electrolysis stack is required to be used exclusively as an oxygen generator, the hydrogen gas generated would have to be disposed off safely. The disposal of hydrogen would lead to a number of system and safety related issues, resulting in the limited application of the device as an oxygen generator. Hydrogen can be combusted to produce heat or better disposed off in a separate fuel cell unit which will supply electricity generated, to the electrolysis stack to reduce power input requirements. This however, will add to system complexity, cost and efficiency loss. The present invention provides an improved method and a simple system for the production of oxygen. | 11-20-2008 |
20090183995 | Ceramic material for use at elevated temperature - A ceramic material ( | 07-23-2009 |
20090242421 | FORMATION OF [18F] FLUORIDE COMPLEXES SUITABLE FOR [18F] FLUORINATIONS - The present invention claims a method for forming [ | 10-01-2009 |
20090242422 | Method for recovering performance of electrolyzer for use in production of polysulfide and method for stopping holding electrolyzer - In an electrolyzer comprising an anode compartment provided with porous anodes, a cathode compartment, and a membrane providing a partition between the anode compartment and the cathode compartment, wherein a solution containing sulfide ions is introduced into the anode compartment, and an aqueous solution containing caustic soda is introduced into the cathode compartment, thereby producing a polysulfide containing polysulfide sulfur through electrolytic oxidation, wherein the anode compartment of the electrolyzer is cleaned with the use, of an aqueous solution containing at least either one of an inorganic acid, a chelating agent, and a scale-cleaning agent, thereby recovering performance of the electrolyzer. Further, when the contents of the anode compartment are replaced with an alkaline aqueous solution containing not more than 0.1 mass % of sulfide ions and not more than 0.1 mass % of carbonate ions upon stopping the electrolytic oxidation, thereby maintaining the performance of the electrolyzer. | 10-01-2009 |
20090277799 | Efficient Production of Fuels - Liquid phase processes for producing fuel in a reactor comprising the step of combining at least one oxidizable reactant with liquid water and at least one electrolyte to form a mixture and conducting a fuel-producing reaction in the presence of an electron transfer material, wherein the mixture permits the movement or transport of ions and electrons to facilitate the efficient production of the fuel. An alternative embodiment produces fuel in an electrochemical cell, the reaction characterized by an overall thermodynamic energy balance according to the half-cell reactions occurring at the anode and cathode. Energy generated and/or required by the system components is directed according to the thermodynamic requirements of the half-cell reactions, thereby realizing improved fuel production efficiency. | 11-12-2009 |
20100276297 | PRIMARY PRODUCTION OF ELEMENTS - Electrowinning methods and apparatus are suitable for producing elemental deposits of high quality, purity, and volume. Respective cathodes are used during electrowinning for bearing the elemental product, segregating impurities, dissolving morphologically undesirable material, and augmenting productivity. Silicon suitable for use in photovoltaic devices may be electrodeposited in solid form from silicon dioxide dissolved in a molten salt. | 11-04-2010 |
20110024303 | ELECTROLYSER - An electrolyser comprising a stack of electrolysis plates, the plates being maintained in substantial alignment to comprise an electrolysis cell, and a press for applying a compressive force to opposed ends of the cell whereby the press maintains the electrolysis plates in substantial alignment when the electrolyser is in operation. | 02-03-2011 |
20110094892 | ELECTROLYSER - An electrolyser comprising a stack of electrolysis plates, the plates being maintained in substantial alignment to comprise an electrolysis cell, and a press for applying a compressive force to opposed ends of the cell whereby the press maintains the electrolysis plates in substantial alignment when the electrolyser is in operation. | 04-28-2011 |
20110108433 | Process for Activating a Diamond-Based Electrode, Electrode Thus Obtained and Uses Thereof - The present invention relates to a process for activating a diamond-based electrode, which includes a step consisting in subjecting, in the presence of an aqueous solution containing an ionic electrolyte, said electrode to an alternately cathodic and anodic polarization potential, of increasing amplitude so as to obtain an anodic and cathodic current density of between 10 μA/cm | 05-12-2011 |
20110168567 | CONTROL OF HARD WATER SCALING IN ELECTROCHEMICAL CELLS - A threshold agent composition and methods of using the same to produce hypochlorite and other effluent streams from an electrochemical cell without the detrimental effects of hard water scaling are disclosed. The invention further discloses use of chemistries to prevent hard water scale formation in various electrochemical cells to enhance cell longevity without decreasing chlorine, hypochlorite or other effluent production. | 07-14-2011 |
20120061252 | Activation of cathode - The present invention relates to a process for production of alkali metal chlorate, and to a method of activating a cathode comprising electrolyzing an electrolyte comprising alkali metal chloride in an electrolytic cell in which at least one anode and at least one cathode are arranged wherein a) said electrolyte comprises chromium in any form in an amount ranging from about 0.01-10 | 03-15-2012 |
20120097549 | ELECTROCHEMICAL CELL AND METHOD FOR SEPARATING CARRIER-FREE 18F-FROM A SOLUTION ON AN ELECTRODE - Disclosed is an electrochemical cell and a method for separating carrier-free radionuclides from a solution on an electrode. | 04-26-2012 |
20120111733 | METHOD FOR PRODUCING POROUS COPPER FOIL - The present invention provides a method for producing a porous copper foil. The method of the present invention includes the steps of forming an oxide film by providing a chromium-containing compound to a metal surface of a cathode; forming a copper foil on the oxide film by performing electrolysis of copper; and removing the copper foil from the metal surface of the cathode. The method of the present invention is simple and time-saving, and the porous copper foil of the present invention has reduced roughness difference between both sides of the porous copper foil. | 05-10-2012 |
20130313126 | ELECTROLYSIS METHOD AND ELECTROLYTIC CELLS - An electrolysis method for electrolytic cells having an electrode-membrane-electrode assembly includes two porous electrode having a porous membrane located therebetween and filled with electrolyte or having an ion exchange membrane located therebetween, one or more liquids being led directly into the membrane of the electrode-membrane-electrode assembly. The one or more liquids are guided in a channel structure arranged in the membrane. An electrolytic cell includes porous electrode, between which a porous membrane is arranged. A liquid electrolyte is fixed in the pore of electrodes and membrane, a product gas chamber adjoining the cathode, a further product gas chamber adjoining the anode, and an arrangement for feeding a liquid to the electrode. A channel structure, in which distribution of the liquid is provided, is arranged in the membrane. | 11-28-2013 |
20130341202 | Method for Synthesizing Fluorine Compound by Electrolysis and Electrode Therefor - Disclosed is an electrode for electrolytic synthesis of a fluorine compound, including: an electrode substrate having at least a surface thereof formed of a conductive carbon material; a conducting diamond layer formed on a part of the surface of the electrode substrate; and a metal fluoride-containing coating layer formed on an exposed part of the electrode substrate that is uncovered by the conducting diamond layer. It is possible for the electrolytic synthesis electrode to limit the growth of a graphite fluoride layer on the electrode surface, prevent decrease in effective electrolysis area and allow stable electrolysis in an electrolytic bath of a hydrogen fluoride-containing molten salt. | 12-26-2013 |
20140069819 | ZINC OXIDE NANOFLAKES FOR TREATMENT OF POLLUTANTS - A method for preparing leaf like ZnO nanoflakes by anodization of zinc foil in a mixture of ammonium sulfate and sodium hydroxide electrolytes is described. | 03-13-2014 |
20140124380 | METHOD FOR PRODUCING LIQUID ORGANIC FUELS AND HYDROGEN - A method for producing organic liquid fuels and other valuable products in which an organic compound is provided to an anode electrode having a metal oxide catalyst disposed on an anode side of an electrolyte membrane, thereby producing an organic liquid fuel and/or other valuable organic product and electrons on the anode side. The electrons are conducted to a cathode electrode disposed on a cathode side of the electrolyte membrane, thereby transforming water provided to the cathode side to H | 05-08-2014 |
20150354073 | TECHNIQUES FOR PRODUCTION OF CHLORATED PRODUCTS AND PREFABRICATED CATHODE STRUCTURES - Techniques for producing chlorinated products include an electrochemical process that includes the steps of providing an anode and a cathode in an electrolyte comprising impurities such as calcium ions, applying a voltage between the anode and the cathode under conditions to form an electrolysis product such as sodium chlorate in the electrolyte, and providing sufficient phosphate ions to form with at least a portion of the calcium ions a protective external layer including a calcium phosphate compound such as hydroxyapatite on the cathode, while preferably avoiding other phosphate precipitations. A pre-determined amount of phosphate ions may be added, for example, based on the surface area of the cathode in order to form the protective layer. Related uses and systems are also described. Prefabricated cathodes may include a substrate, a catalytic intermediate layer and a calcium phosphate protective layer. | 12-10-2015 |
20160040308 | ELECTROLYSIS CELL AND METHOD FOR OPERATING AN ELECTROLYSIS CELL - An electrolysis cell, having an anode, a cathode, and a membrane that is situated between the anode and the cathode and contacts the anode via an anode contact area and contacts the cathode via a cathode contact area, wherein the cathode contact area is greater than the anode contact area, the membrane has a surface oriented toward the cathode that is greater than the cathode contact area, and the electrolysis cell has cathodically polarized surfaces that are in direct contact with the electrically conductive water. This invention also relates to a method for operating an electrolysis cell in natural water and a use of such an electrolysis cell for disinfecting water are also proposed. | 02-11-2016 |
20160090656 | System for the Electrolysis of Water having Rotating Disc Cathodes and an Automated Cathode Cleaner - An electrolysis mechanism for deployment in a reservoir of water, the electrolysis system having at least one rotating cathode mounted on an axle and configured to rotate during an electrolysis process, at least one stationary cathode cleaning element deployed so as to contact a face of the rotating cathode such that during the electrolysis process as the rotating cathode, rotates scale buildup on the rotating cathode is removed and at least one stationary anode deployed adjacent to the rotating cathode. A preferred embodiment of which includes a plurality of spaced apart rotating cathodes; a plurality of stationary cathode cleaning elements with one stationary cathode cleaning element deployed in each space between the rotating cathodes so as to contact a face of each of the rotating cathodes it is deployed between; and a plurality of stationary anodes such that at least one of stationary anode is deployed in each of the spaces between the rotating cathodes. | 03-31-2016 |