Patents for C25B 1 - Electrolytic production of inorganic compounds or non-metals (13,948)
03/1992
03/03/1992US5093089 From chromium species, acidification, crystallization
03/03/1992US5092977 Fluoropolymer binder, dispersion of oxyhydroxide gel
03/03/1992US5092970 Electrochemical process for producing chlorine dioxide solutions from chlorites
02/1992
02/26/1992CN2097209U Electrolytic tube of generator for sodium hypochlorite
02/25/1992CA1296293C Electrolytic cell
02/25/1992CA1296292C Electrolytic cell
02/20/1992DE4025803A1 Electrolytic hydrogen prodn. appts. - including transmitter to increase hydrogen yield
02/19/1992EP0471021A1 Conductive components containing conductive metal oxide
02/18/1992US5089095 Electrochemical process for producing chlorine dioxide from chloric acid
02/12/1992EP0470761A1 Electrolytic ozone generation
02/12/1992EP0470662A1 Process for the fine purification of an aqueous sodium chloride solution for membrane electrolysis
02/12/1992EP0470070A1 A submerged electrolytic cell pool purifier.
02/11/1992US5087335 Heat exchanging, hydration with aqueous solution
02/11/1992US5087334 Recovering and using mother liquors; efficiency, pollution control
02/09/1992CA2048516A1 Ozone generation
02/05/1992EP0243488B1 Method and apparatus using a solid electrolyte in the form of a disk for the separation or pumping of oxygen
02/04/1992US5085754 Cation exchange membrane having high durability with diffusion coating on marginal areas of the membrane
02/04/1992US5085752 Nickel electrodes with partition plate separators; nonexplosive
02/04/1992CA1295284C Electrolytic cell for alkali metal hydrosulfite solutions
01/1992
01/29/1992CN1058240A Process for separation of sulphate
01/28/1992US5084156 Electrolytic cell
01/28/1992US5084149 Oxidation of chlorite to produce chlorine-free chlorine dioxid e
01/28/1992US5084148 Electrochemical process for producing chloric acid - alkali metal chlorate mixtures
01/28/1992CA1294982C Process for the manufacture of o-nitrobenzaldehyde
01/28/1992CA1294758C System for the extraction and utilization of oxygen and other ligands from fluids
01/22/1992CN1058052A Gas welding machine by electrolysis of water
01/21/1992US5082543 Filter press electrolysis cell
01/14/1992CA1294240C Electrochemical electrode with electrocatalytic ceramic coating containing dopant
01/09/1992WO1991019020A3 Electrochemical synthesis and simultaneous purification process
01/07/1992CA1293951C Porous diaphragm for electrochemical cell
01/02/1992EP0463438A1 Chromic acid manufacture using bipolar membranes
01/02/1992DE4020051A1 Alkali di:chromate and chromic acid prodn. by electrolysis - in multi--compartment cell with bipolar ion exchange membrane to screen anode from chromium cpds.
01/01/1992CN1015271B Production of chloric acid
01/01/1992CN1015270B Method for production of alkali metal hydroxide
12/1991
12/25/1991CN1015186B Anode of electrolytic water application for welding machine and its processing method
12/24/1991US5074975 Electrochemical cogeneration of alkali metal halate and alkaline peroxide solutions
12/24/1991US5074974 Ion exchanging
12/18/1991CN1015088B Method for stripping and recovery of chromate from chlorate production system by electrolysis
12/12/1991WO1991019020A2 Electrochemical synthesis and simultaneous purification process
12/12/1991WO1991018830A1 Electrochemical production of acid chlorate solutions
12/11/1991CN1056906A Manufacturing two-valence europium by electrolysis reduction
12/10/1991US5071522 Process for the preparation of chromic acid
12/09/1991CA2043256A1 Electrochemical synthesis and simultaneous purification process
12/04/1991EP0459642A1 Electrochemical ion exchange
12/04/1991EP0458817A1 Lubricant dispenser with a galvanic cell consisting of anode, cathode and electrolyte for the production of gases.
11/1991
11/27/1991CN1056536A Process for preparing surface lubricating and anticorrosive agent for copper-aluminium sections
11/27/1991CA2042751A1 Electrochemical ion exchange
11/26/1991US5068015 Electrochemical process for the production of chromic acid
11/20/1991CN2089009U Hydrogen and oxygen gas generator
11/19/1991US5066378 Diaphragm Monopolar Electrolyzers For Chlor-Alkali Electrolysis
11/15/1991WO1991018131A1 Process to produce hydrogen and/or hemihydrate calcium sulphate from calcium sulphite
11/15/1991CA2082957A1 Process to produce hydrogen and/or hemihydrate calcium sulphate from calcium sulphite
11/14/1991WO1991017117A1 Process for regulating the flow rate in the electrochemical regeneration of chromic-sulphuric acid
11/13/1991EP0456050A1 Process for producing chrome yellow and molybdenum orange pigments
11/13/1991EP0455747A1 Harvester for removing a substance from a plate
11/12/1991US5064514 From hypochlorous acid, electrolytic cell
11/12/1991CA1291963C Electrolytic process for manufacturing potassium peroxydiphosphate
11/08/1991CA2041864A1 Preparation of chrome yellow and molybdate orange pigments
11/07/1991DE4014429A1 Verfahren zur regelung des durchsatzes bei der elektrochemischen regeneration von chromschwefelsaeure A method for regulating the flow rate in the electrochemical regeneration of chromschwefelsaeure
11/06/1991CN1055963A Electrochemical synthesis of h2o2
11/05/1991US5063041 Evaporation
11/05/1991US5062930 Electrolytic permanganate generation
11/05/1991CA1291788C Sulfur tolerant composite cermet electrodes for solid oxide electrochemical cells
10/1991
10/30/1991CN1014534B Electrodes for use in electrochemical processes and method for preparing the same
10/29/1991US5061358 Insoluble anodes for producing manganese dioxide consisting essentially of a titanium-nickel alloy
10/28/1991CA2030827A1 Reactor vessel using metal oxide ceramic membranes
10/23/1991EP0452679A1 Electrochemical preparation of tin(II)-chloride aqueous solutions
10/22/1991CA1291063C Method and apparatus for purification of gold
10/17/1991WO1991015614A1 Electrochemical process for production of chloric acid from hypochlorous acid
10/16/1991EP0451589A1 Anodes for the electrochemical fluorination and fluorine production and their manufacturing process
10/08/1991US5055171 Nonporous solid composite encapsulating metallic electrode
10/03/1991WO1991015017A1 Deuterium energy accumulation
10/03/1991WO1991014802A1 Electrochemical synthesis of hydrogen peroxide
10/02/1991EP0449071A1 Process for the electrochemical separation of alkali-sulphates
10/01/1991WO1991015613A1 Apparatus for the production of chloric acid and perchloric acid
10/01/1991CA2081370A1 Apparatus for the production of chloric acid and perchloric acid
09/1991
09/28/1991WO1991014649A1 Process to separate dioxygen from a gas mixture
09/28/1991CA2056410A1 Process using transition metal complexes to separate dioxygen fro a gas mixture by electrochemical reduction of complexes
09/25/1991EP0434686A4 Removal of nitric oxide from waste gases and recovery as nitric acid
09/24/1991US5051155 Electrolytic formation of of alkali metal chromates and chromic acid
09/24/1991CA2038830A1 Electrolysis of alkali metal sulfates
09/24/1991CA1289506C Gravity flow in electrolysis with perforated electrodes
09/22/1991CA2037522A1 System for electrolytically generating strong solutions of halogen oxyacids
09/19/1991WO1991008609A3 An alternator unit and an engine including the same
09/19/1991DE4008612A1 Rotary DC ozoniser discharges evolved gas centrifugally - for use in situ or in separate reaction vessel, absence of valves filters, pump etc. simplifies construction
09/18/1991CN1054574A Process for purifying hydrogen fluoride
09/12/1991DE4106568A1 Appts. for directly forming dissolved ozone in circulated liq. - holding spaced electrodes emitting spaced AC pulses
09/11/1991EP0445516A1 Process and apparatus for the production of silver nitrate
09/11/1991EP0417211A4 Conversion of manganate to permanganate
09/10/1991US5047132 Apparatus for catalytically reducing dioxygen using dirhodium complexes
09/04/1991EP0444138A1 Electrocatalyst, methods for preparing it, electrodes prepared therefrom and methods for using them.
09/04/1991CN2084055U Portable medical oxygen producing machine
09/04/1991CN1054230A Process for destroying hypochlorite in solution of chlorate
09/03/1991WO1991013024A1 Process for purifying hydrogen fluoride
09/03/1991US5045170 Lead-acid battery
09/03/1991US5045169 Stacked cells
09/03/1991US5045162 Process for electrochemically regenerating chromosulfuric acid
09/03/1991US5045158 Electrolyte in process for reduction of oxygen
09/03/1991CA2076372A1 Process for purifying hydrogen fluoride
08/1991
08/28/1991EP0443259A1 Solid oxide electrochemical oxygen generator