Patents
Patents for C25C 7 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells (6,884)
01/1980
01/29/1980US4186067 Passing current through solution containing silver ions and ferric ions, and brought to predetermined redox potential by addition of reducing agent
01/29/1980CA1070643A1 Automatic stripping of cathode zinc
01/29/1980CA1070639A1 Electrowinning by deposition of metal on non-fluidized metal powder cathode
01/23/1980EP0007239A2 Insoluble electrode comprising an electrodepositated ruthenium-iridium alloy
01/23/1980EP0006875A1 Mass-transfer membrane and processes using same
01/22/1980US4184930 Sintered nickel impregnated with nickel hydroxide
01/22/1980US4184235 Apparatus for shaping anodes
01/15/1980US4183794 Electrolysis
01/08/1980US4182671 Electrolytic silver and gold refining cell
01/01/1980US4181584 Resistance heaters, melting
01/01/1980US4181583 Method for heating electrolytic cell
12/1979
12/25/1979US4180445 Oxygen selective anode
12/25/1979CA1068642A Calcium containing lead alloy anodes for electrowinning copper
12/25/1979CA1068641A Method and apparatus for the electrodeposition of metal
12/18/1979US4179350 Catalytically innate electrode(s)
12/04/1979US4177128 Cathode element for use in aluminum reduction cell
12/04/1979US4177117 Electrolysis
12/04/1979US4177113 Method of electroforming sheets and self-stripping cathode
12/04/1979CA1067454A1 Method of cooling electrolyte circulated for electrowinning of zinc
11/1979
11/28/1979EP0005580A1 Process and apparatus for electrolytically removing metal ions from a dilute solution thereof
11/20/1979US4175027 Apparatus for recovering zinc from residues
11/20/1979US4175026 Electrolytic apparatus for recovering metal from solutions
11/20/1979US4175022 Electrolytic cell bottom barrier formed from expanded graphite
11/20/1979CA1066657A1 Reusable integrated cathode unit with surface array of metal islands
11/13/1979CA1066226A1 Device for providing uniform air distribution in air-agitated electrowinning cells
10/1979
10/31/1979EP0005007A1 Electrolytic process and apparatus for the recovery of metal values
10/30/1979US4172780 Electrolytic cells
10/23/1979CA1064860A1 Electrolytic cell for use in hydroelectrometallurgy
10/18/1979WO1979000840A1 Electrodes for electrolytic processes,especially metal electrowinning
10/16/1979US4171250 Method for zinc ore extraction
10/16/1979US4171249 Unidirectional fluid flow
10/16/1979US4170816 Cathode starting sheet assembly machines
10/09/1979US4170535 Membrane securing device
10/03/1979EP0004438A2 Methods of electrolysis, oxygen-selective anodes used in such methods and their preparation
10/03/1979EP0004386A2 Electrodes for electrolytic processes, especially metal electrowinning
10/02/1979US4169776 Method for recovery of metallic zinc from chlorine contaminated skimmings
09/1979
09/25/1979US4169033 Electroplating cell
09/25/1979CA1063061A1 Electrowinning cell with reduced anodic surfaces
09/18/1979CA1062653A1 Electrowinning of sulfur-containing nickel
09/18/1979CA1062651A1 Process and apparatus for electrowinning metal from metal bearing solutions
09/11/1979US4167468 Cobalt diaphragm
09/04/1979US4166781 Recovery of silver from hypo
09/04/1979CA1061881A1 Method and device for detecting and eliminating short-circuits in an electrolytic tank
08/1979
08/28/1979US4166013 Electrolysis of an alkali metal b-alumina
08/28/1979CA1061284A1 Recovery of silver from used photographic solutions
08/21/1979US4165263 Method of preparing an electrolytic cell for operation
08/21/1979US4165262 Method of electrowinning titanium
08/14/1979US4164453 Method for regenerating zinc
08/14/1979US4164073 Apparatus for feeding and bending seed plate lug strips
08/14/1979CA1060379A1 Precious metal recovery system
08/07/1979CA1059949A1 Apparatus for automatically replacing electrodes used for electrolytic refining of metal
07/1979
07/24/1979CA1059064A1 Electrolytic recovery of nickel and zinc
07/11/1979EP0002705A1 A membrane securing device
06/1979
06/26/1979US4159235 Method and apparatus for treating metal containing waste water
06/26/1979US4159231 Method of producing a lead dioxide coated cathode
06/26/1979CA1057234A1 Apparatus for the electrolytic regeneration of hexavalent chromium compounds and recovery of metals from waste bichromate solutions
06/19/1979US4158612 Electrolyte-resistant, molecularly bonded layers of nonconductive mask and conductive plating surface
06/19/1979CA1056767A1 Electrical connector for bi-polar electrodes
06/12/1979US4157943 Composite electrode for electrolytic processes
06/05/1979CA1055889A1 Metallic filament electrode
06/05/1979CA1055885A1 Carbon fiber electrode
06/05/1979CA1055883A1 Electrowinning of metals
06/05/1979CA1055879A1 Electrolyzer
05/1979
05/29/1979CA1055425A Mother blank for producing starting sheets used in electrolytic non-ferrous metal production
05/22/1979USRE30005 Method for the electrolytic recovery of metal employing improved electrolyte convection
05/22/1979US4155829 Apparatus for regulating anode-cathode spacing in an electrolytic cell
05/22/1979US4155821 Electrolysis, permselective membrane, suction, overflows
05/15/1979US4154661 Lowermost bipolar spacing for electrolytic cell
05/08/1979US4153521 Method of automatic control and optimization of electrodeposition conditions
05/01/1979CA1053609A1 Reconstructed or repaired electrode and method of repairing same
05/01/1979CA1053608A1 Electrolytic extraction of non-ferrous metals by periodically reversing current
04/1979
04/24/1979US4151062 Metals recovery apparatus
04/17/1979US4149954 Silver in a film processing installation
04/17/1979US4149638 Method and apparatus for orienting a plate
04/17/1979CA1052729A1 Flow of electrolyte through electrolytic cells
04/10/1979US4148108 Apparatus for polishing cathode plates for metal electrolytic refinery
04/03/1979US4147597 Mandrel comprising metal surface finished by grit blasting providing micro-indentation to improve adhesion
03/1979
03/27/1979US4146458 Electrochemical device having an oxygen electrode containing a pyrochlore type compound electrocatalyst
03/27/1979US4146447 Arsenic removal from electrolytes
03/27/1979US4146444 Method for preheating a molten salt electrolysis cell
03/27/1979US4146438 Sintered electrodes with electrocatalytic coating
03/27/1979CA1051373A1 Electrolysis using floating member between electrolyte and covering liquid
03/06/1979CA1049956A1 Electrolytic deposition of metals
02/1979
02/27/1979US4141804 Process for electrowinning metal from metal bearing solutions
02/20/1979US4140813 First coating of titanium oxide applied by flame spraying
02/20/1979US4140595 Use of materials in molten salt electrolysis
02/20/1979US4140594 Through interelectrode spaces
02/13/1979US4139430 Conductive projections on nonconductor
02/13/1979US4139429 Electrolytic cell
02/13/1979US4138755 Polishing apparatus for electrolysis mother plate
02/08/1979WO1979000059A1 Method for eliminating solution-level attack on cathodes during electrolysis
02/08/1979WO1979000040A1 Mass-transfer membrane and processes using same
02/06/1979CA1048091A1 Protecting metal heating electrodes of melting furnaces with dc current and apparatus therefor
01/1979
01/30/1979US4137130 Automatic stripping of cathode zinc
01/23/1979CA1046799A1 Electrowinning of zinc using aluminum alloy
01/16/1979US4134806 Metal anodes with reduced anodic surface and high current density and their use in electrowinning processes with low cathodic current density
01/16/1979CA1046458A1 Resilient liner for an electrolytic cell
01/16/1979CA1046456A1 Cemented collector bar assemblies for aluminum cell carbon bottom block
01/16/1979CA1046446A1 Production of metallic strands
01/09/1979US4133738 Carbon foams
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