| Patents for C25B 1 - Electrolytic production of inorganic compounds or non-metals (13,948) |
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| 12/30/1997 | US5702585 Using alkali (bi)sulfates, (bi)sulfites and/or (bi)carbonates fed to a decomposition tank, then passing electric current between anode and cathode |
| 12/30/1997 | CA2041914C Process for the recovery of sulphate |
| 12/29/1997 | EP0814071A1 Process for preparing compounds |
| 12/29/1997 | EP0814060A2 Process for increasing the pH of acidic water |
| 12/28/1997 | CA2180034A1 Method of producing an alkali metal hydroxide by electrolysis of sodium sulphate |
| 12/23/1997 | CA2048815C Process for producing sodium hydroxide and ammonium sulphate from sodium sulphate |
| 12/21/1997 | CA2208203A1 Process for preparing compound |
| 12/18/1997 | DE19624024A1 Electrolytic production of halogens or halogen-oxygen or peroxy compounds |
| 12/17/1997 | CN2270735Y Sloping composite type disinfecting gas generator |
| 12/17/1997 | CN1167840A Method for electrolytic introduction of oxidative matter |
| 12/16/1997 | US5698088 Formed by electrochemical reaction using formic acid solution as electrolyte and intercalate source, natural graphite anode, metal cathode |
| 12/10/1997 | CN1036668C Method for processing chrome slag |
| 12/09/1997 | US5695890 Photoelectrode comprising charge transfer complex; redox catalysts |
| 12/09/1997 | US5695622 Electrode for peroxide generator and method for preparing it |
| 12/02/1997 | US5693213 Electrolytic process of salt water |
| 11/27/1997 | WO1997044506A1 Hydrogen gas generators |
| 11/27/1997 | WO1997044126A1 A method and a reactor for electrochemical conversion of a material e.g. soot particles being insoluble in a fluid |
| 11/26/1997 | EP0809313A2 Electrochemical cells and their production, and electrochemical devices using such electrochemical cells |
| 11/25/1997 | US5690797 Electrolysis of water |
| 11/20/1997 | DE19704160A1 Electrolytic module useful for air dehumidifier |
| 11/19/1997 | EP0807322A1 An electrochemical energy conversion and storage system |
| 11/19/1997 | EP0715605B1 Electrolytic solid metal hydroxide preparation and water purification method and device |
| 11/19/1997 | CN1165295A Mcdified surface bipolar electrode |
| 11/19/1997 | CN1165050A Solid polymer electrolytic module and its making method and dehumidifier used it |
| 11/18/1997 | US5688385 Apparatus for producing chlorine on-site |
| 11/18/1997 | US5688384 Electrolysis |
| 11/12/1997 | EP0806498A1 An apparatus for producing hydrogen and oxygen |
| 11/06/1997 | WO1997041295A1 Method for producing polysulfides by electrolytic oxidation |
| 11/05/1997 | CN1164261A Electrochemical device for removal and regeneration of oxygen and method |
| 10/30/1997 | WO1997040212A1 Cylindrical electrolyzer assembly |
| 10/29/1997 | EP0725845A4 Electrolytic cell for producing a mixed oxidant gas |
| 10/29/1997 | EP0694087B1 Method of preparing alkali-metal peroxide solutions |
| 10/28/1997 | US5681447 By adsorption |
| 10/28/1997 | US5681446 Impurity removal for sodium chlorate |
| 10/28/1997 | US5681445 Modified surface bipolar electrode |
| 10/23/1997 | DE19701717A1 Quantitative electrolytic production of standard oxygen solution |
| 10/21/1997 | US5679239 Process and apparatus for generating bromine |
| 10/21/1997 | US5679238 Method for producing sulfuric acid from flue gas desulfurization |
| 10/21/1997 | US5679237 Electrolyzing aqueous solution catholyte containing transition metal compound and sulfonated phosphine |
| 10/21/1997 | US5679235 Titanium and cerium containing acidic electrolyte |
| 10/14/1997 | US5676808 Grooves formed in the contact surface with cation exchange membrane to prevent the caustic alkali clogging |
| 10/08/1997 | EP0799328A1 Electrochemical peroxide generator and process for making peroxide |
| 10/01/1997 | CN1160777A Process for pruification of manganese sulfate solution for electrolytic manganese dioxide |
| 10/01/1997 | CN1160776A Process of electrolytic manganese dioxide |
| 09/24/1997 | CN2263111Y Electrolysis of water in electrolytic bath |
| 09/23/1997 | US5670036 Ammonia conversion to nitrogen using bromide electrolyte and hypobromite ions to dissolve ammonia to produce nitrogen by oxidation, regeneration of hypobromite ions with electricity |
| 09/17/1997 | EP0766752A4 Oxygen supply and removal apparatus |
| 09/17/1997 | CN2262422Y 小型次氯酸钠发生器 Small sodium hypochlorite generator |
| 09/16/1997 | US5667647 Oxygen-hydrogen electrolytic gas generation apparatus |
| 09/10/1997 | EP0793620A1 Method for electrochemically removing metal impurities |
| 09/09/1997 | US5665211 Electrolysis apparatus for producing hydrogen |
| 09/04/1997 | WO1997031859A1 Process for recycling waste hydrochloric acid |
| 09/04/1997 | DE19607667A1 Verfahren zur Verwertung von Abfallsalzsäure Process for the recovery of waste hydrochloric acid |
| 09/02/1997 | US5662834 Alloys of Ti Ru Fe and O and use thereof for the manufacture of cathodes for the electrochemical synthesis of sodium chlorate |
| 08/27/1997 | CN2260809Y Electrolytic reaction tank for oxygen generator |
| 08/26/1997 | US5660712 Circulating potassium hydroxide in the catholyte section upstream to the first step of oxidizing manganese dioxide-bearing ore; continuous processing |
| 08/26/1997 | US5660709 Electrochemical process and device for the production of metallic hydroxides and/or metallic-oxide hydroxides |
| 08/20/1997 | EP0789789A1 Electrochemical device for removal and regeneration of oxygen and method |
| 08/19/1997 | US5658448 Production of hydrogen from solar radiation at high efficiency |
| 08/14/1997 | DE19605288A1 Anodes for industrial scale water electrolysis with catalytic activity |
| 08/12/1997 | US5656386 Electrochemical cell with a polymer electrolyte and process for producing these polymer electrolytes |
| 07/31/1997 | WO1997027143A1 Production of high purity silicon metal, aluminium, their alloys, silicon carbide and aluminium oxide from alkali alkaline earth alumino silicates |
| 07/30/1997 | CN2258502Y High effect hydrogen generator of solid polymer electrolyte |
| 07/29/1997 | US5651875 Process for producing alkali metal hydroxide |
| 07/24/1997 | WO1997026684A1 Single-crystal oxygen ion conductor |
| 07/24/1997 | DE19540993C1 Economising consumption of fossil fuel by internal combustion engines |
| 07/23/1997 | EP0785587A2 Layered sintered body for electrochemical cell, electrochemical cell including it and process for its manufacture |
| 07/23/1997 | EP0785294A1 Improved method for the electrolysis of aqueous solutions of hydrochloric acid |
| 07/23/1997 | EP0538474B1 Electrolytic vessel for producing hypochlorite |
| 07/23/1997 | CN1035488C Bipolar oxygen-making electrochemical process and its apparatus |
| 07/22/1997 | US5650058 Electrolytic cell and capillary gap electrode for gas-developing or gas-consuming electrolytic reactions and electrolysis process therefor |
| 07/16/1997 | CN2257740Y Miniature fast eletrolyzer |
| 07/15/1997 | US5647970 Method of producing ultrahigh pressure gas |
| 07/15/1997 | US5647968 Process for making peroxide |
| 07/10/1997 | WO1997024775A1 Heterolamellar photovoltaic films |
| 07/10/1997 | WO1997024774A1 Electroconversion cell |
| 07/10/1997 | WO1997024473A1 Production of carbonyl halide |
| 07/10/1997 | WO1997024320A1 Production of isocyanate using chlorine recycle |
| 07/10/1997 | WO1997024306A1 Production of ethylene dichloride by direct chlorination and production of vinyl chloride monomer using chlorine recycle |
| 07/10/1997 | CA2241629A1 Production of carbonyl halide |
| 07/09/1997 | CN1154101A Production of methanol |
| 07/08/1997 | US5645700 Polymer membrane based electrolytic cell and process for the direct generation of hydrogen peroxide in liquid streams |
| 07/01/1997 | US5643692 Power cell comprising fluid storage means for hydrogen fluoride and water, anode, cathode, heater, wherein water is dissociated to produce hydrogen and oxygen and an electric current |
| 07/01/1997 | US5643437 Co-generation of ammonium persulfate anodically and alkaline hydrogen peroxide cathodically with cathode products ratio control |
| 06/25/1997 | EP0780493A1 Modified surface bipolar electrode |
| 06/22/1997 | CA2193307A1 Modified surface bipolar electrode |
| 06/18/1997 | CN1152341A Electrolytic cell for producing mixed oxidant gas |
| 06/12/1997 | WO1997020965A1 Method and apparatus for constant composition delivery of hydride gases for semiconductor processing |
| 06/10/1997 | US5637206 From an aqueous ammonium sulfide solution |
| 06/10/1997 | US5637204 End casing for an electrodialyzer electrodialyzer equipped with such a casing and use of the said electrodialyzer |
| 06/05/1997 | CA2233839A1 Filter press electrolyzer electrode assembly |
| 06/04/1997 | EP0776994A1 Fluid electrolyte electrolyzer |
| 06/04/1997 | EP0696228B1 A method for converting ammonia in a gas stream to nitrogen |
| 06/04/1997 | CN1151193A Electrochemical process and device for the production of metal hydroxides and/or metal oxide hydroxides |
| 06/03/1997 | US5635053 Method and apparatus for cleaning electronic parts |
| 06/03/1997 | US5635039 Ion exchange membranes having improved water supply; high current density, |
| 05/29/1997 | WO1997019205A1 Process for direct electrochemical gaseous phase phosgene synthesis |
| 05/29/1997 | CA2237637A1 Process for direct electrochemical gaseous phase phosgene synthesis |
| 05/28/1997 | EP0775762A1 Oxygen-hydrogen electrolytic gas generation apparatus |
| 05/28/1997 | DE19543678A1 Verfahren zur direkten elektrochemischen Gasphasen-Phosgensynthese A process for the direct electrochemical gas phase phosgene |