Patents for C25B 1 - Electrolytic production of inorganic compounds or non-metals (13,948)
09/1981
09/02/1981EP0009480B1 Process and reactor for producing a treating aqueous solution containing at least hydrogenoperoxide ions and hydroxyl ions according to predetermined concentrations and use of the reactor
08/1981
08/26/1981EP0034513A1 Process for producing stabilized zirconia based solid electrolyte bodies, and bodies obtained by this process
08/25/1981US4285797 Cathode for the electrolytic treatment of alkali halide
08/25/1981US4285795 Electrolysis apparatus
08/25/1981CA1107685A1 Diaphragm cell
08/25/1981CA1107682A1 Membrane cell
08/25/1981CA1107677A1 Rejuvenation of the efficiency of seawater electrolysis cells by periodic removal of anodic deposits
08/11/1981US4283258 Recovery of tungsten from heavy metal alloys
08/11/1981US4283257 Process for preparing ammonium metatungstate
08/11/1981CA1106798A1 Process for producing tin (ii) sulfate
08/11/1981CA1106613A1 Process for removing mercury from brine sludges
08/04/1981US4282074 Electrolytic process utilizing a transition metal-graphite intercalation compound cathode
08/04/1981CA1106314A1 Electrolysis cell with membrane for gas generation
08/04/1981CA1106312A1 Electrolytic cell with membrane
07/1981
07/29/1981EP0032819A2 Method of preventing deterioration of palladium oxide anode in a diaphragm type alkali metal chloride electrolytic cell
07/28/1981US4280885 Method of and apparatus for active electro-chemical water and similar environmental contaminant elimination in semi-conductor and other electronic and electrical devices and the like
07/28/1981US4280883 Method of operating a solid polymer electrolyte chlor-alkali cell
07/28/1981CA1105882A1 Horizontal mercury cathode electrolyzer
07/28/1981CA1105876A1 Voltage reduction of membrane cell for the electrolysis of brine
07/21/1981US4279879 Silica gel
07/21/1981US4279731 Bipolar diaphragm
07/21/1981US4279712 Method for electrolyzing hydrochloric acid
07/21/1981US4279710 Oxidation during electrolysis using a fuel and water
07/21/1981US4279705 Process for oxidizing a metal of variable valence by constant current electrolysis
07/15/1981EP0031897A2 Bipolar element, method for its manufacture and diaphragm electrolyzer, and process for the electrolysis of alkali metal halide using such a bipolar element
07/14/1981US4278526 Apparatus for electrolysis of an aqueous alkali metal chloride solution
07/14/1981US4278525 Oxygen cathode for alkali-halide electrolysis cell
07/14/1981US4278524 Diaphragms for use in the electrolysis of alkali metal chlorides
07/09/1981WO1981001930A1 Interfering-wave elimination device
07/08/1981EP0031788A1 Process for the electrolysis of an aqueous alkali metal halide solution, and electrolytic cell
07/08/1981EP0031660A1 Electrolysis apparatus using a diaphragm of a solid polymer electrolyte, and a method for the production of the same
06/1981
06/30/1981US4276146 Halogen and alkali metal hydroxide from aqueous alkali metal halide
06/30/1981US4276145 Electrolytic anolyte dehydration of castner cells
06/30/1981US4276130 Electrolysis of sodium chloride
06/23/1981US4274938 Apparatus for the production of hydrogen and oxygen
06/23/1981US4274929 Precipitating magnesium silicate
06/16/1981US4273736 Surface active element dispersed and cured in polyphenylene oxide or sulfide or polyimide matrix
06/16/1981US4273642 Electrolytic cell
06/16/1981US4273629 Bipolar unit
06/16/1981US4273628 From alkali metal chromate derived from chrome ore
06/16/1981US4273626 Electrolyte series flow in electrolytic chlor-alkali cells
06/16/1981CA1103331A1 Apparatus for and method of regulating anode-cathode spacing in an electrolytic cell
06/16/1981CA1103206A1 Bipolar separator for electrochemical cells and method of preparation thereof
06/16/1981CA1103198A1 Method of electrolyzing brine
06/09/1981US4272354 Electrodes for electrolytic processes
06/09/1981US4272337 Membranes, potentials
06/09/1981US4272336 Oxidation, oxidation catalysts
06/03/1981EP0029751A1 Ion exchange membrane cell and electrolytic process using thereof
06/03/1981EP0029628A1 Hydrogen gas generation utilizing a bromide electrolyte, an amorphous silicon semiconductor and radiant energy
06/03/1981EP0029520A1 Method for the separation of gases developed by a fusion electrolysis, and fusion electrolysis apparatus
06/02/1981US4271003 Novel gas electrodes
06/02/1981US4270996 Cation exchange membrane of fluorinated polymer for electrolysis and electrolysis using the membrane
05/1981
05/28/1981WO1981001423A1 Method of and apparatus for active electrochemical water and similar environmental contaminant elimination in semiconductor and other electronic and electrical devices and the like
05/27/1981EP0029371A2 Assemblies comprising semiconductor electrodes
05/27/1981EP0029279A1 Material for electrodes and electrolytic cells with anodes consisting of this material
05/27/1981EP0029083A1 Process for the simultaneous production of nitrogen monoxide and alkali hydroxide from aqueous solutions of alkali nitrite by electrolysis
05/26/1981US4269688 Having an anode facing surface of an alloy of titanium and yttrium to upgrade the corrosion resistance of crevices and hydrogen uptake; electrolysis of brine
05/26/1981US4269675 Electrolyte series flow in electrolytic chlor-alkali cells
05/26/1981CA1101622A1 Method of bonding cation exchange membrane of fluorinated polymer
05/20/1981EP0028925A1 Method of and generator for generation of chlorine-chlorine dioxide mixtures, chlorinating system and method
05/19/1981US4268367 Electrolytic process for the sterilization of liquids
05/19/1981US4268365 Method of electrolysis of an alkali metal chloride
05/19/1981US4268363 Method for electrowinning metals
05/12/1981US4267025 Electrodes for electrolytic processes, especially perchlorate production
05/12/1981CA1100763A1 Hydrometallurgical leaching and refining of nickel- copper concentrates
05/06/1981EP0028082A1 Treatment of semiconductor materials and their use as electrodes in photoelectrochemical cells
05/05/1981US4265721 Commercial hydrogen gas production by electrolysis of water while being subjected to microwave energy
05/05/1981US4265719 Electrolysis of aqueous solutions of alkali-metal halides employing a flexible polymeric hydraulically-impermeable membrane disposed against a roughened surface cathode
05/05/1981US4265718 Electrolysis
04/1981
04/28/1981US4264426 Electrolytic cell and a method for manufacturing the same
04/28/1981US4264422 Method for producing shaped articles by electrodepositional shaping from fibrous substance having electrophoretic property and apparatus for same
04/28/1981CA1100089A1 Metal chloride electrolysis using cathode with onide coating of platinum and alkaline earth metals
04/22/1981EP0027367A1 Method of manufacture of catalytic electrodes with coatings comprising platinum group electrocatalysts
04/22/1981EP0027146A1 Process for producing hydrogen
04/21/1981US4263117 Device for the recovery of gases formed during the electrolysis of alkali metal chlorides
04/21/1981US4263112 Cell and method for electrolysis of water and anode therefor
04/21/1981US4263111 Hydrogen generation utilizing semiconducting platelets suspended in a divergent vertically flowing electrolyte solution
04/21/1981US4263110 For solar powered generator
04/21/1981US4263107 Recirculation using baffles, hydrodynamics
04/16/1981WO1981000973A1 Electrode coating with platinum-group metal catalyst and semiconducting polymer
04/15/1981EP0027051A1 Coated metal electrode with improved barrier layer and methods of manufacture and use thereof
04/15/1981EP0026979A2 Electrolytic cell and process for producing an alkali metal hydroxide and chlorine
04/15/1981EP0026969A2 Method of bonding electrode to cation exchange membrane
04/14/1981US4261803 Electrolysis of aqueous solution of potassium chloride
04/07/1981US4260463 Generating chlorine gas carbon dioxide, and alkali metal hydroxide by electrolysis
04/07/1981CA1098859A1 Process for electrolysis of aqueous alkali metal halide solution
03/1981
03/31/1981US4259297 Chromate removal from concentrated chlorate solution by chemical precipitation
03/25/1981EP0025644A1 Fluorinated polymer cation exchange membrane for electrolysis, process for its preparation and process for electrolysing an aqueous solution of an alkali metal chloride
03/25/1981EP0025613A1 A process for improving the quality of chlorine
03/24/1981US4258081 Thermoplastic impregnating fabric covered electrodes
03/24/1981US4257867 Electrolytic cell having a gas impervious membrane for separation of chlorine gas
03/24/1981US4257866 Electrolyzer cell
03/24/1981US4257856 Electrolytic process useful for the electrolysis of water
03/24/1981CA1098076A1 Reduction of steel cathode overpotential
03/18/1981EP0025334A1 Chromate removal from concentrated chlorate solution by chemical precipitation
03/17/1981US4256556 Anodically polarized surface for biofouling and scale control
03/17/1981US4256554 Dissolving in the electrolyte to obtain chlorine tions; using a gas-impermeable but liquid-permeable membrane; venting chlorine gas at the anode; used for zinc-halogen batteries
03/17/1981US4256552 Chlorine generator
03/17/1981US4256551 Laminar flow
03/17/1981US4256549 Antimony trioxide to antimony tetraoxide