Patents for C25B 15 - Operating or servicing of cells (4,262)
12/1991
12/12/1991WO1991018830A1 Electrochemical production of acid chlorate solutions
12/09/1991CA2043256A1 Electrochemical synthesis and simultaneous purification process
12/04/1991EP0459961A2 A method of preparing chlorate
11/1991
11/30/1991CA2043182A1 Method of preparing chlorate
11/26/1991US5068015 Electrochemical process for the production of chromic acid
11/26/1991CA1292438C Control of sulfates in membrane cell chlor-alkali process
11/14/1991WO1991017117A1 Process for regulating the flow rate in the electrochemical regeneration of chromic-sulphuric acid
11/13/1991EP0455747A1 Harvester for removing a substance from a plate
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
11/05/1991US5063041 Evaporation
10/1991
10/17/1991WO1991007525A3 Apparatus for gas generation
10/03/1991WO1991015017A1 Deuterium energy accumulation
09/1991
09/24/1991CA1289507C Electrolytic treatment of gravity flow electrolyte with gas diffusion electrode
09/24/1991CA1289506C Gravity flow in electrolysis with perforated electrodes
09/18/1991EP0302891B1 Method and plant for electrolysis by seeping through one or a plurality of porous voluminal electrodes
09/04/1991CN1054230A Process for destroying hypochlorite in solution of chlorate
09/03/1991US5045169 Stacked cells
08/1991
08/28/1991EP0443259A1 Solid oxide electrochemical oxygen generator
08/27/1991CA1288025C Differential gas pressure control device
08/13/1991CA1287596C Production of sodium chlorate
08/06/1991US5037518 Apparatus and method for generating hydrogen and oxygen by electrolytic dissociation of water
08/06/1991CA2035635A1 Solid oxide electrolyte electrochemical oxygen generator
07/1991
07/23/1991US5034127 Filter assembly for purifying brine
07/23/1991US5034110 Pool chlorinators
07/03/1991EP0435385A1 Electrolytic cell for gas production comprising a stack of vertical frames
07/02/1991US5028302 Purification of chlor-alkali membrane cell brine
06/1991
06/29/1991CA2032000A1 Electrolytic gas generator incorporating a stack of vertical frames
06/26/1991EP0433750A1 Process for the preparation of chromic acid
06/26/1991EP0433748A1 Process for the preparation of chromic acid
06/17/1991CA2032369A1 Process for the preparation of chromic acid
06/17/1991CA2032368A1 Process for the preparation of chromic acid
05/1991
05/30/1991WO1991007525A2 Apparatus for gas generation
05/22/1991EP0427972A1 Purification of chlor-alkali membrane cell brine
05/14/1991US5015345 Measurement of current
04/1991
04/23/1991US5009754 Consumption of hypochlorite values contained in perchlorate solutions of electrolysis
04/17/1991EP0422994A1 Apparatus for the production by electrolysis of water of a hydrogen-oxygen gaseous mixture used for feeding an ionisation flame
04/17/1991CN2075208U Blackout device for dielectric solution
04/10/1991EP0420910A1 Sodium hydrosulfite electrolytic cell process control system
04/02/1991US5004527 By electrolysis of alkali metal chlorate which is maintained homogeneous and uniform in composition
03/1991
03/27/1991EP0419052A1 Electrolytic generation of chlorine
03/26/1991CA1282029C Restoring current efficiency by temporary suspension of electrolysis and reduced catholyte concentration
03/20/1991EP0417647A1 Apparatus and method for generating hydrogen and oxygen by electrolytic dissociation of water
03/20/1991CN1050056A Process for manufacture of sodium hydroxide lye
03/19/1991CA1281680C Electrolytic cell with electrode material in a non-conducting pipe
03/13/1991CN1049874A Process for manufacture of sodium hydroxide lye
02/1991
02/26/1991CA1280714C Electrolytic cell module
02/20/1991EP0413385A1 Process for manufacturing a sodium hydroxide caustic solution
02/20/1991EP0413384A1 Process for manufacturing a sodium hydoxide caustic solution
02/18/1991CA2023412A1 Production process for sodium hydroxide lye
02/18/1991CA2023411A1 Production process for sodium hydroxide lye
01/1991
01/08/1991CA1278774C Electrolysis system for the production of peroxy compounds
12/1990
12/19/1990CN1010860B Method for recovering current efficiency
12/12/1990CA2005641A1 Methods and systems for generating and collecting fusion fuel material
12/05/1990EP0400712A1 Frame for electrolyzer of the filter-press type and electrolyzers of the filter-press type
11/1990
11/29/1990CA2017496A1 Frame for filter-press type electrolyzes and such an electrolyzes
11/14/1990EP0397114A1 Preventing crevice corrosion of titanium surfaces
11/13/1990US4969981 Cell and method of operating a liquid-gas electrochemical cell
11/07/1990EP0396174A1 Process for positioning an anode set in a mercury cathode electrolysis cell wherein chlorine is produced
11/07/1990EP0395796A1 Vacuum injection capillary electrophoresis
11/06/1990US4968395 Mechanical manipulation
10/1990
10/16/1990US4963241 Electrolytic cell with recirculation means
10/16/1990US4963235 Process for treating electrolytic cell products
10/02/1990CA1274801A1 Method of stabilizing metal-silica complexes in alkali metal halide brines
09/1990
09/26/1990EP0389263A1 Electrochemical hydrogen separator system for zero gravity water electrolysis
09/19/1990EP0387687A1 Process and apparatus for regulating the interpolar distance to compensate the anode burning up in electrolysis cells
09/10/1990CA2011769A1 Method and apparatus for adjusting the distance between the poles of electrolysis cells
09/05/1990CN1045080A Process for destroying hypochlorites in solution of perchlorate
08/1990
08/29/1990EP0384861A1 Process for destroying hypochlorites in a perchlorate solution
08/29/1990EP0384860A1 Process for destroying hypochlorites in a chlorate solution
08/28/1990US4952298 Computer control
08/28/1990US4952297 Storage, transportation and installation container for ion-exchange membranes
08/22/1990CA2010429A1 Process for removing hypochlorites in a perchlorate solution
08/22/1990CA2010428A1 Process for removing hypochlorites in a chlorate solution
08/21/1990US4950371 Electrochemical hydrogen separator system for zero gravity water electrolysis
08/09/1990WO1990008634A1 Harvester for removing a substance from a plate
06/1990
06/27/1990EP0215016B1 Solid compositions based on superoxides, production thereof and electrochemical applications thereof
05/1990
05/30/1990CN1042574A Process for continuous preparation of perchlorate of alkali motal
05/16/1990EP0368767A1 Continuous process for manufacturing alkali metal perchlorate
05/10/1990DE3837354A1 Method and appliance for safeguarding a high-pressure water electrolysis system
05/02/1990CN1007829B Method for removing sulfate from electrolytic brine
05/01/1990US4921545 Supported tool strikingly engages manganese dioxide; electrolytic cells
04/1990
04/18/1990CN1041404A Process for cooling of gaseous chlorine
04/05/1990DE3932895A1 Pressurised gas generator - with automatically controlled operation, esp. for electrolytic hydrogen prodn.
04/05/1990DE3833186A1 Method for controlling a hydrogen electrolysis arrangement
04/03/1990US4913779 Pulsating circulation of liquid electrolyte, reversing direction of flow prevents clogging
03/1990
03/28/1990EP0360536A2 Cell and method of operating a liquid-gas electrochemical cell
03/28/1990EP0360486A2 Process for cooling of gaseous chlorine
03/28/1990CN2055139U 氢气断电器 Hydrogen breaker
03/27/1990US4911829 Transportable, elongated supported clamping means
03/07/1990EP0356802A2 Electrochemical process for the production of chromic acid
02/1990
02/20/1990US4902397 Electrolytic cell with differential gas pressure control device
02/14/1990EP0354227A1 Method for detecting defective ion exchange membranes in monopolar and bipolar electrolyzers.
02/07/1990EP0353367A1 Combined process for production of chlorine dioxide and sodium hydroxide
01/1990
01/23/1990US4895635 Novel caustic-chlorine electrochemical cell monitoring apparatus and method
01/09/1990US4892636 Portable
12/1989
12/28/1989WO1989012705A1 Sodium hydrosulfite electrolytic cell process control system
11/1989
11/29/1989CN1037553A Process for controlling electrolysis cell
11/29/1989CN1005920B Method for prolonging operating life of hydrogen-releasing electrode
09/1989
09/20/1989EP0333556A1 Regulation process of an electrolysis cell
09/19/1989CA1259582A1 Process for electrically separating individual electrolyte spaces of a pile of bipolar electrochemical cell
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