Patents for C25B 1 - Electrolytic production of inorganic compounds or non-metals (13,948)
08/1999
08/03/1999US5932085 Chlorine dioxide generation for water treatment
07/1999
07/29/1999WO1999038215A1 Solar battery module for optical electrolysis device and optical electrolysis device
07/28/1999EP0931855A1 Production of hydrogen from water using photocatalyst-electrolysis hybrid system
07/28/1999EP0670915B1 The production of hydrogen from solar radiation at high efficiency
07/28/1999CN1224082A Film and oxygen reduction cathode electrolyzer stop method
07/28/1999CN1044394C Complex pole type ion-membrane electrolytic device
07/27/1999US5928489 Flowing gas through electrolytic cell comprising inert membrane filled with molten electrolyte mixture of hydrogen halide and alkali metal halide, recovering halide gas product
07/20/1999US5925463 Electrochemical reduction of metal salts as a method of preparing highly dispersed metal colloids and substrate fixed clusters by electrochemical reduction of metal salts
07/20/1999US5925232 Electrochemical generation of product hydride gas, mixing with an amount of diluent gas which is computer monitored and adjusted to maintain predetermined ratio of gases supplied to semiconductor manufacturing apparatus
07/20/1999CA2176791C Electrolytic production process for magnesium and its alloys
07/15/1999WO1999034895A1 Electrolytic process for treating aqueous waste streams
07/08/1999WO1999034033A2 Electrochemical synthesis of metal and semiconductor nitrides
07/08/1999DE19758309A1 Electrolytically produced hydrogen using solar energy
07/07/1999EP0927857A2 Apparatus for separating solar radiation into longer and shorter wavelength components
07/07/1999EP0846194B1 Process for the combined electrochemical production of sodium peroxide disulphate and soda lye
07/07/1999EP0730675B1 Electrochemical conversion of anhydrous hydrogen halide to halogen gas using a cation-transporting membrane
07/07/1999CN2327700Y Chlorine dioxide generator
07/07/1999CN2327699Y Laminated electrolyzing water tank
07/07/1999CN2327698Y Hydrogen and oxygen generator with enhanced cooling
07/06/1999CA2174520C Fluorine cell
07/01/1999DE19858544A1 High purity sodium persulfate is produced using a high current efficiency electrolysis step
06/1999
06/30/1999CN2326614Y Sodium hypochlorite generator
06/30/1999CN2326613Y Synthermal eletrolytic tank for gold-carrying charcoal desorption electrolytic apparatus
06/30/1999CN2326590Y Oxygen generator for breathing
06/30/1999CN1220969A Process for producing sodium persulfate
06/29/1999US5916505 Improved proton exchange membrane for use in electrochemical cells having internal passages parallel to the membrane surface
06/29/1999CA2103387C Electrolytic production of hydrogen peroxide using bipolar membranes
06/24/1999WO1999031297A1 METHOD FOR ELECTROCHEMICALLY PROCESSING HCl GAS INTO HIGHLY PURE CHLORINE
06/24/1999CA2314491A1 Method for electrochemically processing hcl gas into highly pure chlorine
06/17/1999WO1999029929A1 Apparatus for producing ozone water and method of producing ozone water by using the same apparatus
06/17/1999DE19755636A1 Verfahren zur elektrochemischen Aufarbeitung von HCl-Gas zu hochreinem Chlor Method for electrochemical processing of HCl gas into high-purity chlorine
06/16/1999EP0922789A1 Shut-down process for membrane electrolytic cell with oxygen reducing cathode
06/16/1999CN1219610A Saline electrolysis process
06/16/1999CN1219609A Solid high-molecular electrolyzing module and solid high-molecular electrolyzer using same
06/10/1999WO1999028538A1 Electrolytic cell for the production of fluorine
06/10/1999WO1998040535A8 Electrolytic ozone-generating apparatus and the process for manufacturing the same
06/09/1999EP0871985A4 Heterolamellar photovoltaic films
06/09/1999CN2322979Y Oxygen producer for electrolysis of water
06/09/1999CN1219139A Method and reactor for electrochemical conversion of material e. g. soot particles being insoluble in fluid
06/08/1999US5910237 Process for recovering organic hydroxides from waste solutions
06/03/1999WO1999009234A3 Electrosynthesis of hydroxylammonium salts and hydroxylamine using a mediator, a catalytic film, methods of making the catalytic film, and electrosynthesis of compounds using the catalytic film
06/02/1999EP0919533A1 Electrosynthesis of aromatic quinones
06/02/1999CN2321786Y High-efficiency oxygen generator III
06/01/1999US5908545 Electrochemical process for decomposing hydrogen sulfide to produce hydrogen and sulfur
05/1999
05/27/1999DE19853458A1 Solid state polymeric electrolysis module for polymeric electrolyzer
05/25/1999CA2254154A1 Electrosynthesis of aromatic quinones
05/25/1999CA2002479C Method for making arsenic acid
05/19/1999EP0916997A1 Method for minimising the aerial oxidation of photographic developers
05/19/1999CN1216784A Chlorine dioxide generation for water treatment
05/19/1999CA2253183A1 Solid polyelectrolytic module and solid polyelectrolytic apparatus using same
05/18/1999US5904823 Methods of purifying hydroxylamine solutions and converting hydroxylamine salts to hydroxylamine
05/14/1999CA2248670A1 Method for minimizing the aerial oxidation of photographic developers
05/12/1999EP0914203A1 A method and a reactor for electrochemical conversion of a material e.g. soot particles being insoluble in a fluid
05/06/1999WO1999022045A1 Electrode of an electrolytic bath for generating fluorine and isotropic carbonaceous block used therefor
04/1999
04/28/1999EP0911428A1 Process for producing bismuth compounds
04/28/1999EP0789789A4 Electrochemical device for removal and regeneration of oxygen and method
04/27/1999CA2172275C Process for production of acidified process streams
04/15/1999WO1999018262A1 Energy conversion device
04/15/1999CA2339938A1 Energy conversion device
04/14/1999CN2313617Y High safety small size oxygen generator for vehicle and household
04/14/1999CN1213710A Alkaline hydrogen peroxide water solution generator
04/14/1999CN1213709A Non-energy cost water electrolysis hydrogen/oxygen separating generator
04/08/1999WO1999016934A1 Method for the electrolysis of an aqueous saline solution
04/07/1999EP0635072B1 Electrolytic cell assembly and process for production of bromine
04/07/1999CN1042842C Method for prodn. of sodium chlorate by electrolytic salt
04/06/1999US5891319 Method for and apparatus production of carbonyl halide
04/06/1999US5891318 Production of ethylene dichloride by direct chlorination and production of vinyl chloride monomer using chlorine recycle and apparatus
04/01/1999DE19843647A1 Hydrogen halide and oxygen are produced from water and halogen in cell
03/1999
03/31/1999CN1042720C Process for producing chlorine dioxide
03/30/1999US5888368 Process for manufacturing an aqueous sodium hydroxide solution
03/30/1999US5888361 Apparatus for producing hydrogen and oxygen
03/30/1999CA2130911C Electrolytic cell for generating sterilization solutions having increased ozone content
03/30/1999CA2092238C Decreased sodium sulfate production in chlorine dioxide generation
03/24/1999EP0903425A1 Process for the electrolysis of brine
03/24/1999CN2311495Y Hydrogen mixing agent generator
03/24/1999CN1212029A Production of carbonyl halide
03/18/1999WO1999013131A1 Electrochemical synthesis of cobalt oxyhydroxide
03/17/1999EP0728127B1 Synergistic process for the production of methanol
03/17/1999CN2310770Y Multihole hydrogen oxygen producer
03/11/1999WO1999011840A1 Apparatus for obtaining the anodic oxidation products of a solution of alkaline or alkaline-earth metal chlorides
03/10/1999CN2310079Y No power consumption water electrolyzing hydrogen-oxygen separation generator
03/10/1999CN2310078Y High-efficiency oxygen maker
03/10/1999CN1210153A One-step process of nickle hydroxide electrolysing
03/09/1999US5879522 Closed housing, ion exchange membrane, electroconductive sheet member adjacent membrane, electroconductive particles, source of direct current
03/03/1999CN2309344Y Pressure water electrolytic bath
03/03/1999CN1209848A Electrochemical conversion of anhydrous hydrogen halide to halogen gas using cation-transporting membrane
03/03/1999CN1042354C Electrolytic sterilizing liquid cup
03/02/1999US5876581 Film of iron (III) hexacyanoferrate (II) and process of synthesizing same
02/1999
02/25/1999WO1999009234A2 Electrosynthesis of hydroxylammonium salts and hydroxylamine using a mediator, a catalytic film, methods of making the catalytic film, and electrosynthesis of compounds using the catalytic film
02/24/1999EP0667983B1 Electrochemical cell with a polymer electrolyte and process for producing these polymer electrolytes
02/24/1999CN1209219A Electroconversion cell
02/23/1999US5873993 Selective electrolysis of feldspar dissolved in fluoride within furnace where carbon dioxide evolved from carbon anode at bottom of the melt floats purified silicon to the melt surface without contamination for recovery
02/18/1999WO1999007919A1 Method and apparatus for generating a gas
02/18/1999WO1999007663A1 Forming terephthalic acid by electrochemical acidification of a sodium terephthalate solution
02/17/1999CN2307799Y Portable concentration chlorine dioxide generator
02/16/1999CA2128898C Methods of producing caustic soda without chlorine
02/09/1999US5868916 Process for recovering organic hydroxides from waste solutions
02/09/1999US5868913 Coating by physical vapor deposition of a mixture of ruthenium oxide, and at least one non-noble metal oxide in a system charged with oxygen and heat treating the coated substrate; improved durability anode for electrolytic cell
02/09/1999US5868912 Electrochemical cell having an oxide growth resistant current distributor
02/09/1999US5868911 Apparatus for generating bromine