Patents for C25B 1 - Electrolytic production of inorganic compounds or non-metals (13,948)
02/1982
02/09/1982CA1117895A1 Method of reducing chlorate formation in a chlor-alkali electrolytic cell
02/09/1982CA1117716A1 Anionic membranes
02/02/1982US4313813 Lanthanum cobalt oxide disproportionation catalyst
02/02/1982US4313805 Chlorine cell catholyte series flow
02/02/1982US4313804 Process for preparing ceric sulphate
02/02/1982CA1117474A1 Diaphragms for use in the electrolysis of alkali metal chlorides
02/02/1982CA1117469A1 Production of potassium or sodium stannate
02/02/1982CA1117467A1 Preparation of anodes by nickel plating and activation in a nickel sulphate and thiosulphate bath
01/1982
01/27/1982EP0044782A1 Process for degassing and recycling electrolyte in an electrolyser for producing gas
01/27/1982EP0044472A1 A separator electrolytic cell providing glove-shaped membranes
01/27/1982EP0044471A1 A separator electrolytic cell
01/26/1982US4312738 Cathode electrocatalysts for solid polymer electrolyte chlor-alkali cells
01/26/1982US4312736 Polymeric solid electrolyte
01/26/1982US4312722 Electrolytic reduction of nitrates in cell having cation exchange separator membrane
01/26/1982US4312721 Converting cerous ion to ceric ion in presence of cobalt compound
01/26/1982US4312720 Minimization of corrosion and bipolar effects as diaphragm support
01/26/1982US4312718 Method for producing fluorine
01/20/1982EP0043818A1 Method of and apparatus for active electrochemical water and similar environmental contaminant elimination in semiconductor and other electronic and electrical devices and the like
01/19/1982US4311569 Device for evolution of oxygen with ternary electrocatalysts containing valve metals
01/19/1982US4311567 Treatment of permionic membrane
01/12/1982US4310405 Device for the photoelectrochemical generation of hydrogen at p-type semiconductor electrodes
01/12/1982US4310394 Process for preparing peroxydisulfates of alkali metals and ammonium
01/05/1982CA1115655A1 Process for electrolysis of sodium chloride
01/05/1982CA1115605A1 Method of preparing active electrodes and use thereof in electrochemical cells
12/1981
12/29/1981US4308124 Apparatus for electrolytic production of alkali metal hypohalite
12/29/1981US4308117 Water treatment
12/29/1981CA1115234A1 Process for electrolysis of alkali halide
12/29/1981CA1115063A1 Method for recuperating purified mercury from metal contaminant lades mercury or mercury butters
12/22/1981US4306950 Process for forming sulfuric acid
12/22/1981CA1114778A1 Method of manufacturing permeable diaphragms for electrolytic cells
12/16/1981EP0041819A2 Removal of nitrous material from nitric acid streams
12/16/1981EP0041734A1 Improved composite ion exchange membranes
12/16/1981EP0041733A1 Improved sulfonic acid electrolytic cell membranes
12/16/1981EP0041732A1 Electrolytic cell having an improved ion exchange membrane and process for operating
12/15/1981US4305794 Photochemical electrode
12/15/1981US4305793 Method of concentrating alkali metal hydroxide in hybrid cells having cation selective membranes
12/15/1981CA1114330A1 Process for preparation basic aluminum chlorides
12/15/1981CA1114329A1 Process for producing sodium hypochlorite
12/09/1981EP0041365A1 Improved electrolytic process for the production of ozone
12/08/1981US4304645 Process for removing helium and other impurities from a mixture containing deuterium and tritium, and a deuterium/tritium mixture when purified in accordance with such a process
12/08/1981US4304643 Process for the electrolysis of sulfur dioxide solutions
12/08/1981CA1113801A1 Electrodes containing nickel alloys as electrocatalysts
12/02/1981EP0040920A1 Monopolar electrolytic cell of the filter press type
12/01/1981US4303491 Apparatus for cleaning the bottom of electrolytic mercury cathode cells
12/01/1981CA1113421A1 Electrolysis in a cell employing uniform membrane spacing actuated by pressure
11/1981
11/26/1981WO1981003346A1 Separation of hydrogen sulfide from fluid streams
11/24/1981CA1113037A1 Slotted pair of anode plates with spaces and spacing studs
11/24/1981CA1112845A1 Destruction of sodium hypochlorite in solutions from a chlorate electrolytic cell
11/18/1981EP0040031A1 Anode catalyst and generation of oxygen
11/18/1981EP0039897A1 Improved process for fusion bonding of fluorocarbon type polymers
11/18/1981EP0039873A2 Method of producing metals and semimetals by cathodic dissolution of their compounds in electrolytic cells, and metals and metalloids produced
11/18/1981EP0039745A1 Process for the simultaneous production of hydrogen and sulfuric acid or sulfates from sulfur and water
11/17/1981US4300987 Gas extraction
11/17/1981CA1112599A1 Specific recovery process for chlorine and carbon dioxide in gaseous mixtures
11/12/1981WO1981003186A1 Halogen evolution with improved anode catalyst
11/12/1981WO1981003185A1 Anode catalysts for electrodes
11/11/1981EP0039608A1 Halogen evolution with improved anode catalyst
11/11/1981EP0039547A1 Halogenation process using a halide carrier and process for regeneration of the halide carrier
11/10/1981US4299682 Having a porous layer made by decomposing a group eight salt of a carboxylic acid
11/10/1981US4299675 Process for electrolyzing an alkali metal halide
11/10/1981CA1112208A1 Cell connector for bipolar electrolyzer
11/04/1981EP0039189A1 Process for producing alkali metal hydroxide
11/04/1981EP0039171A2 A method for the electrolysis of an aqueous solution of an alkali metal chloride and an electrolytic cell therefor
11/04/1981EP0039135A2 Production of ammonium metatungstate
11/03/1981US4298587 Electrolysis of metal fluoride to form silicon fluoride at silicon anode followed by reaction with metal
11/03/1981US4298447 Deposits of crystalline iron adhering to the cathode surface; efficiency
10/1981
10/27/1981US4297194 Electrolytic cell having a dimensionally-stable anode, metal cathode, and separator of a semipermeable fluoropolymeric ion-exchange resin
10/27/1981US4297182 Production of alkali metal hydroxide
10/27/1981US4297174 Dissolving in an alkali metal sulfate bath to obtain plutonium oxide; electrodeposition of uranium oxide
10/27/1981CA1111371A1 Halogen production in electrolytic cell with particulate catalytic electrodes bonded to membrane
10/20/1981US4295951 Film-coated cathodes for halate cells
10/20/1981US4295950 Micro-porous cathode filled with sodium amalgam
10/20/1981US4295945 Process for the production of liquid chlorine
10/20/1981US4295944 To produce the alkali metal hydroxide, using a cation exchange resin
10/20/1981US4295943 Process for the electrolytic production of manganese dioxide
10/20/1981US4295942 Process for preparing manganese oxide
10/20/1981CA1111000A1 Separator-electrode unit for electrolytic cells
10/13/1981US4294815 Process of producing chlorine dioxide and, if desired, chlorine
10/13/1981US4294683 Production of hydrogen and oxygen from water
10/13/1981US4294677 Method for electrodepositing a protein onto an ion-exchange membrane
10/13/1981US4294671 High temperature and low feed acid concentration operation of HCl electrolyzer having unitary membrane electrode structure
10/13/1981CA1110579A1 Electrolyzer
10/06/1981US4293395 Process for electrolysis of an aqueous alkali metal chloride solution
09/1981
09/30/1981EP0036709A2 Process for manufacturing a polychelate coating and electrode coated therewith
09/29/1981US4292159 Plating the cathode with iron from an iron-ion generator
09/29/1981US4292146 Porous polyfluoroalkylene sheet useful for separating anolyte from catholyte in electrolytic cells
09/29/1981US4292145 High-temperature electrolysis of a molten electrolytic salt bath containing dissolved silica; high purity
09/22/1981US4290864 Electrolysis of alkali metal dichromates
09/22/1981US4290863 Process for electrolysis of brine by mercury cathodes
09/22/1981CA1109416A1 Decomposition of alkali metal amalgams
09/16/1981EP0035837A1 Use of particles comprising alpha-iron in alkali metal halide electrolysis, cathodes for such use and process for their preparation, electrolytic cell and method of operating same
09/15/1981US4289591 Solid solution of manganese oxide in ruthenium oxide
09/15/1981CA1109019A1 Chlorate cell construction
09/15/1981CA1109018A1 Method for concentrating aqueous caustic alkali solution
09/15/1981CA1108823A1 Separation of hydrogen sulfide from fluid streams
09/09/1981EP0035128A1 Process for concentrating a low-percentage caustic soda solution
09/09/1981EP0035017A1 Catalytically active anode
09/08/1981US4288301 Method of forming hydrogen
09/03/1981WO1981002432A1 Process for manufacturing a polychelate coating
09/02/1981EP0034855A1 Process for electrolysing an aqueous alkali-metal halogenide solution in a mercury-cathode cell