Patents for C25B 15 - Operating or servicing of cells (4,262)
09/1984
09/04/1984US4469576 Apparatus for electrolytical production of alkaline chlorate
09/04/1984US4469571 Replacement of a structurally damaged membrane
08/1984
08/14/1984US4465579 Bipolar electrolytic cell
08/14/1984US4465560 Method and device for protecting the anodes of electrolytic cells against overloads, short circuits and unbalances
08/01/1984EP0114223A1 Device for data display and automatic control in chlor-alkali electrolytic cells
07/1984
07/17/1984CA1171024A1 Method of controlling the potential of electrically- floating components of electrolyser cells
07/10/1984US4459188 Brine systems for chlor-alkali membrane cells
06/1984
06/26/1984CA1169812A1 Method and apparatus of injecting replenished electrolyte fluid into an electrolytic cell
06/13/1984EP0110033A2 Processing of sodium chloride brines for chlor-alkali membrane cells
06/12/1984CA1169023A1 Restrictor apparatus for electrolyte recirculation flow
06/12/1984CA1169018A1 Method of and apparatus for separating the gases generated during a fusion electrolysis
05/1984
05/30/1984EP0109789A2 Electrolytic cell
05/22/1984US4450057 Acidification to decomplex colloid; chelation using cationic polymer
05/15/1984US4448660 Monitoring apparatus
05/15/1984CA1167407A1 Process for controlling impurities and pollution from membrane chlor-alkali cells
05/01/1984US4446026 Process and solvent for extraction of the chromates present in an aqueous solution
04/1984
04/24/1984US4444631 Electrochemical purification of chlor-alkali cell liquor
04/24/1984CA1165979A1 Process for destruction of hypochlorite
04/17/1984US4443307 Reduction of available chlorine in alkali brines
04/10/1984CA1165273A1 Process for the dechlorination and cooling of the anolyte of the alkali metal halide electrolysis
04/10/1984CA1165272A1 Process for chlor-alkali electrolysis cell
04/03/1984US4440614 Inlet end box brine pipe baffle
02/1984
02/21/1984CA1162492A1 Process for dehalogenation of brine
02/14/1984US4431495 Location of a structurally damaged membrane
02/14/1984US4431494 Method for electrolytic production of alkaline peroxide solutions
02/07/1984CA1161784A1 Chromate removal from concentrated chlorate solution by chemical precipitation
02/07/1984CA1161783A1 Method of preventing deterioration of palladium oxide anode
02/01/1984EP0099795A1 Apparatus for monitoring and indicating the current distribution in an electrolyzer
02/01/1984EP0099693A1 Electrolytic cell with ion exchange membrane
02/01/1984EP0099588A2 Method of regenerating cation exchange membrane
01/1984
01/24/1984CA1160983A1 Method for electrolyzing hydrochloric acid
01/18/1984EP0098500A1 Removal of chlorate from electrolyte cell brine
01/03/1984US4424105 Gas generator with regulated current source
12/1983
12/20/1983US4421614 Method of bypassing electric current of electrolytic cells
12/06/1983CA1158196A1 Process of electrolyzing aqueous solutions of alkali halides
12/06/1983CA1158019A1 Oxidation of organics in aqueous salt solutions
11/1983
11/29/1983US4417961 Membrane cell brine feed
11/29/1983CA1157808A1 Apparatus and process for disengaging gas from gas- entrained electrolyte
11/15/1983US4415460 Purification by heating with a chlorate compound in acid solution
11/15/1983US4415424 Device for supply and discharge of liquid electrolyte for an electrolyzer of filterpress type
11/15/1983CA1156969A1 Device for current leakage control
11/09/1983EP0093529A2 Chlorine producing/consuming plant comprising a zinc-chloride battery
11/09/1983EP0093452A2 Method and device for protecting the anodes of electrolytic cells against the overloads, short circuits and unbalances in general
11/09/1983EP0093319A2 Process for the electrolytic production of chlorine and caustic soda from salt containing sulphate
11/08/1983US4414088 Chlorate cell system
11/08/1983CA1156599A1 Process for purifying aqueous solution of alkali metal halide for electrolysis
10/1983
10/25/1983CA1155790A1 Method and apparatus for controlling the electrodeposition of metals
09/1983
09/27/1983US4406758 Method of operating a liquid-gas electrochemical cell
09/20/1983US4405465 Process for the removal of chlorate and hypochlorite from spent alkali metal chloride brines
09/13/1983US4404179 Destruction of hypochlorite
09/13/1983US4404068 Solid state method for synthesis reactions
09/07/1983EP0087900A2 Method of increasing life expectancy of microporous separators
09/06/1983US4402809 Bipolar electrolyzer
09/06/1983CA1153423A1 Method for detecting incipient short circuits in electrolytic cells
09/06/1983CA1153332A1 Electrolytic oxidation of solutions containing cerous ion and cobalt
08/1983
08/31/1983EP0086896A1 Improved method of operating a liquid-gas electrochemical cell
08/17/1983EP0085999A1 Regulation de vice for a group of electrolytic cells with mercury cathode
08/09/1983US4397735 Prevention of periodic waves of high velocity froths and alternating plugs
08/09/1983US4397720 Removal of chlorate and hypochlorite from electrolyte cell brine
07/1983
07/12/1983CA1149770A1 Electrolysis of aqueous solution of potassium chloride
07/05/1983US4391693 Chlorine cell design for electrolyte series flow
07/05/1983US4391680 Preparing alkali metal hydroxide by water splitting and hydrolysis
07/05/1983CA1149330A1 Method and apparatus for controlled, low current start-up of one of a series of electrolytic cells
07/05/1983CA1149325A1 Liquid-phase electrochemical reaction with particulate trapping agent present
06/1983
06/21/1983CA1148607A1 Shunt current elimination
06/15/1983EP0081092A1 Preparing alkali metal hydroxide by water splitting and hydrolysis
05/1983
05/25/1983EP0079625A1 Precipitation or depositing of particles from a solution
05/24/1983CA1146911A1 Oxygen electrode rejuvenation methods
05/18/1983EP0079218A1 Method and materials for repairing electrolytic cell membranes
05/18/1983EP0079060A1 Security device for a pressure electrolysis apparatus
05/10/1983US4382849 Apparatus for electrolysis using gas and electrolyte channeling to reduce shunt currents
05/04/1983EP0077982A1 An electrolysis process and electrolytic cell
04/1983
04/28/1983WO1983001464A1 Precipitation or depositing of particles from a solution
04/26/1983US4381230 Operation and regeneration of permselective ion-exchange membranes in brine electrolysis cells
04/05/1983US4379044 Installation for degassing and recycling the electrolyte in an electrolyzer for producing gas
04/05/1983US4379043 Electrolysis
04/05/1983US4379035 Method of operating an electrolytic cell
04/05/1983US4379034 Start-up procedure for oxygen electrode
03/1983
03/30/1983EP0075401A2 Bipolar electrolyzer
03/29/1983CA1143696A1 Process for producing chlorine and caustic soda
03/22/1983US4377453 Trapping nitrilium ion intermediate on rion exchange resin
03/22/1983US4377445 Bypass
03/08/1983US4376099 Process for recovering Cr(VI) ions from a chlorate cell liquor
03/01/1983US4375400 Electrolyte circulation in an electrolytic cell
02/1983
02/22/1983US4374711 Process for the electrolysis of an aqueous sodium chloride solution comprising, in combination, a diaphragm process and a cation exchange membrane process
02/08/1983US4372828 Oxidation
02/01/1983US4371433 Apparatus for reduction of shunt current in bipolar electrochemical cell assemblies
01/1983
01/25/1983US4370208 Electrolytic process of an aqueous alkali metal halide solution and electrolytic cell
01/12/1983EP0069504A2 Improved operation and regeneration of permselective ion-exchange membrane in brine electrolysis cells
01/11/1983CA1139265A1 Device for recuperation of alkaline chloride electrolysis gases
01/06/1983WO1983000052A1 Improved operation and regeneration of permselective ion-exchange membranes in brine electrolysis cells
01/05/1983EP0068076A2 Monitoring and control device for chloroalcali electrolytic cells with mercury cathode
12/1982
12/28/1982US4366037 Method of increasing useful life expectancy of microporous separators
12/21/1982US4364806 Protective nitrogen blanket during power outage
12/21/1982US4364805 Blowing oxygen through; reduction of voltage required
11/1982
11/30/1982CA1136736A1 Equipment for regulating, monitoring, optimising and operating, and for displaying data in, alkali metal chloride electrolysis plants
11/23/1982US4360412 Treatment of permionic membrane
11/23/1982CA1136085A1 Separation of gas from electrolyte in cyclone with cylindrical and conical sections
11/17/1982EP0064874A1 Electrolytic cell operation
11/10/1982EP0064185A2 Apparatus for electrolytical production of alkaline chlorate
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