Patents for C25B 15 - Operating or servicing of cells (4,262)
04/1987
04/15/1987EP0218329A1 Apparatus for controlling anode movement in aluminium reduction cells
04/14/1987US4657651 Equalizing gas and liquid electrolyte interface pressures
04/14/1987CA1220444A1 Electrolytic cell with vortex flow ahead of anode compartment
03/1987
03/31/1987US4654131 Recovery of tungsten valves from alkaline solutions
03/31/1987CA1219938A1 Method and device for protecting the anodes of electrolytic cells against the overloads, short circuits and unbalances in general
03/25/1987EP0215016A1 Solid compositions based on superoxides, production thereof and electrochemical applications thereof.
03/24/1987US4652355 Flow-through electrolytic cell
02/1987
02/17/1987US4643808 Method for controlling chlorates
01/1987
01/10/1987CN85101846A Method for removing sulfate from electrolytic brine
12/1986
12/09/1986US4627897 Process for the electrolysis of liquid electrolytes using film flow techniques
12/09/1986CA1215019A1 Preparing alkali metal hydroxide by water splitting and hydrolysis
12/02/1986CA1214621A1 Process for removing aluminum and silica from alkali metal halide brine solutions
11/1986
11/25/1986CA1214429A1 Removal of chlorate from electrolyte cell brine
11/25/1986CA1214427A1 Controlling ph in electro deposition of particles from solution
11/20/1986EP0201837A1 Process and apparatus for the readjustment of the operational setting in an electrolysis cell
11/04/1986US4620902 Electrolysis process using liquid electrolytes and porous electrodes
10/1986
10/21/1986US4618403 Method of stabilizing metal-silica complexes in alkali metal halide brines
10/07/1986US4615777 Method and composition for reducing the voltage in an electrolytic cell
09/1986
09/16/1986CA1211412A1 Producing halogen with halogen production device and metal-halogen secondary cell generating power
09/02/1986US4609472 Acidification, reduction with hydrazine hydrochloride
08/1986
08/28/1986WO1986004932A1 Solid compositions based on superoxides, production thereof and electrochemical applications thereof
08/27/1986EP0192426A2 Removal of sodium ions from alkaline aqueous solutions by means of an electrolytic membrane process
08/13/1986CN86100211A Method for recovering current efficiency
08/05/1986CA1208867A1 Method of regenerating cation exchange membrane
07/1986
07/30/1986EP0189056A1 Method for restoring the current efficiency
07/22/1986CA1208164A1 Safety installation for pressure-electrolysis apparatuses
07/16/1986CN85108119A Electrolytic cell and method of operation
07/09/1986EP0187001A1 Current leakage in electrolytic cell
07/08/1986US4599158 Gas production; array of electrode plates without direct connecting means
06/1986
06/24/1986US4596648 Continuous electrolytic gas generator
06/24/1986US4596639 Electrolysis process and electrolytic cell
05/1986
05/21/1986EP0181594A1 Method of operation of an electrolysis cell
05/06/1986US4586993 Control of sulfates in membrane cell chlor-alkali process
04/1986
04/08/1986US4581105 Fuels cells, electrosynthesis cells
03/1986
03/26/1986EP0175288A2 Process for the galvanic separation of electrolyte carrying collectors from the electrolyte chambers of an electrochemical cell parcel
03/25/1986US4578160 Method for electrolyzing dilute caustic alkali aqueous solution by periodically reversing electrode polarities
02/1986
02/04/1986US4568433 Electrolytic process of an aqueous alkali metal halide solution
01/1986
01/21/1986US4565613 Process for removing a layer of thick mercury from the bottom of mercury-cathode electrolysis cells and a process for the electrolysis of an aqueous solution of an alkali metal halide in a mercury-cathode cell
12/1985
12/31/1985US4561955 Cooling electrical apparatus
12/31/1985US4561949 Apparatus and method for preventing activity loss from electrodes during shutdown
12/17/1985CA1198076A1 Electrolytical production of alkali metal chlorate in cell with vertical electrodes and central hollow section
12/10/1985US4557816 Electrolytic cell with ion exchange membrane
12/03/1985US4556463 Process for removing sulphate from electrolysts brine
11/1985
11/19/1985CA1196951A1 Zinc chlorine battery in a chlorine producing/consuming plant
11/12/1985CA1196619A1 Process and solvent for extraction of the chromates present in an aqueous solution
10/1985
10/30/1985EP0159433A1 Process for removing available halogen from anolyte brine
10/22/1985US4548874 Ceramic shield and noble metal foil
10/22/1985CA1195650A1 Electrolyte and method for electrolytic production of alkaline peroxide solutions
10/22/1985CA1195649A1 Operation and regeneration of permselective ion- exchange membranes in brine electrolysis cells
10/22/1985CA1195648A1 Membrane cell brine feed
10/16/1985EP0157951A1 Method of removing anodically deposited manganese dioxide
10/09/1985EP0156795A1 Compartmentalized cathode cell
09/1985
09/10/1985US4540474 Light level electrode setting gauge and method of use
09/03/1985US4539083 Method for preventing degradation in activity of a low hydrogen overvoltage cathode
08/1985
08/20/1985US4536269 Multichamber two-compartment electrodialytic water splitter and method of using same for acidification of aqueous soluble salts
08/13/1985US4534833 Zinc-chloride battery in a chlorine producing/consuming plant
08/06/1985US4533455 Bipolar separator plate for electrochemical cells
08/06/1985US4533451 Producing alkali and acid ionic water
07/1985
07/31/1985EP0150019A1 Method of electrolyzing using liquid electrolytes and porous electrodes
07/31/1985EP0150018A1 Method for electrolyzing of liquid electrolytes
07/31/1985EP0150017A1 Electrochemical method for the treatment of liquid electolytes
07/30/1985US4532018 Chlor-alkali cell control system based on mass flow analysis
07/16/1985CA1190511A1 Method of operating a liquid-gas electrochemical cell
07/10/1985EP0147714A2 Process for the removal of sulfate from electrolysis brine
07/02/1985US4526904 Method of regenerating cation exchange membrane by treatment with strong acid at above 110° C.
07/02/1985CA1189825A1 Monitoring and control device for electrolytic cells
06/1985
06/19/1985EP0144567A2 Process for the electrolysis of an aqueous alkali metal halide solution
06/12/1985EP0143962A1 Process for removing aluminum and silica from alkali metal halide brine solutions
05/1985
05/15/1985EP0141240A1 Method of stabilizing metal-silica complexes in alkali metal halide brines
05/07/1985US4515665 Method of stabilizing metal-silica complexes in alkali metal halide brines
04/1985
04/23/1985US4512857 Dissolution of iron reduced by sacrificial anode
04/16/1985US4511441 Method of operating a liquid-gas electrochemical cell
04/10/1985EP0136806A2 Chlor-alkali cell control system based on mass flow analysis
03/1985
03/27/1985EP0135314A1 Electrolytic cell module
03/19/1985US4505789 Dynamic gas disengaging apparatus and method for gas separation from electrolyte fluid
03/14/1985WO1985001072A1 Compartmentalized cathode cell
03/06/1985EP0133792A1 Replacement of a structurally damaged membrane in an electrolytic cell
03/05/1985US4502928 Effici-ent utilization of electricity
03/05/1985CA1183489A1 Process for recovering cr(vi) ions from a chlorate cell liquor
02/1985
02/13/1985EP0132816A1 A method for preventing degradation in activity of a low hydrogen overvoltage cathode
01/1985
01/29/1985CA1181718A1 Continuous process for the direct conversion of potassium chloride to potassium chlorate by electrolysis
01/23/1985EP0131977A1 Process for eliminating mercury sludge layers from the bottom of mercury electrolysis cells, and process for elektrolysing an aqueous alcali metal halide solution in a mercury cathode cell
12/1984
12/25/1984US4490232 Wave-powered electrolysis of water
12/18/1984CA1179636A1 Method of bypassing electric current of electrolytic cells
11/1984
11/27/1984US4484998 Electrolytic cell
11/20/1984US4483754 Electrolysis of sodium chloride with the use of ion exchange membranes
11/20/1984US4483748 Automated membrane test cell apparatus and method for so using
11/13/1984US4482436 Use of H2 SO4 H3 PO4 to remove electrolytic deposits from silver cathode surfaces
11/07/1984EP0124204A1 Location of a structurally damaged membrane
11/07/1984EP0124007A2 Multichamber two-compartment electrodialytic water splitter and method of using same for acidification of aqueous soluble salts
11/06/1984US4481096 Pot-typed water purifier with electrolyzer
11/06/1984US4481088 Reduction with stoichiometric amount of hydrochloric acid
10/1984
10/23/1984US4478696 Ionizable reducing and oxidizing gaseous supply means and process for catalytic barriers and electrodes
10/17/1984EP0121585A1 Chlorine cell design for electrolyte series flow
10/09/1984US4476001 Container with horizontal perforated plate of polymethylpentene
10/02/1984US4474656 Method of controlling the potential of electrically-floating components of electrolyzer cells
10/02/1984US4474653 Precipitation or depositing of particles from a solution
09/1984
09/11/1984US4470891 Process for removing available halogen from anolyte brine
09/11/1984US4470890 Method for preventing cathode corrosion
09/04/1984US4469578 Hydrogen vent assembly
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