| Patents for C25C 7 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells (6,884) |
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| 04/23/1991 | US5009750 Process and apparatus for the manufacture of a metal foil |
| 04/17/1991 | EP0422142A1 An anode substrate coated with rare earth oxycompounds. |
| 04/10/1991 | EP0421881A1 Conductive material for electrode, electrical component and their process for manufacturing |
| 04/09/1991 | US5006216 Metal removal apparatus |
| 03/26/1991 | US5002650 Demetallization of solutions by electrolysis, graphite electrodes, air sparging |
| 03/26/1991 | US5002642 Electrolysis by immersion and lifting, electrodes |
| 03/13/1991 | EP0415945A1 A method for the electrolytic production of a polyvalent metal and equipment for carrying out the method |
| 03/12/1991 | US4999097 Reduction of metal oxides to form metals |
| 03/12/1991 | US4999092 Transporting a liquid past a barrier |
| 03/06/1991 | EP0415896A1 Electrode for electrolysis |
| 03/06/1991 | EP0415482A1 Membrane electrolysis apparatus and method of removing metal ions using such apparatus |
| 02/26/1991 | US4995948 To high purity metal |
| 02/26/1991 | CA1280715C Electrolytic cell with anode having projections and surrounded by partition |
| 02/12/1991 | US4992146 Method for setting electrodes in aluminum electrolysis cells |
| 01/29/1991 | US4988417 Production of lithium by direct electrolysis of lithium carbonate |
| 01/23/1991 | CN1048733A Method for recovering trace ag in waste developing and printing liquid of film |
| 01/23/1991 | CN1048732A 电极 Electrode |
| 01/22/1991 | US4986889 Suction cup for the electrolytic treatment of a surface |
| 01/09/1991 | EP0407349A2 Electrode for use in electrolytic processes and process for manufacturing it |
| 01/02/1991 | CN2068512U Advection-type electric tank |
| 12/31/1990 | CA2018670A1 Metal substrate of improved surface morphology |
| 12/27/1990 | EP0380645A4 Apparatus and method for the electrolytic production of metals |
| 12/26/1990 | CN1010981B Improvement in an apparatus for rapid dissolution of metal alloy sample for chemical analysis |
| 12/12/1990 | CN1047709A Lead, silver, calcium rare earth multiple-insolubility alloy anode used in eletrolysis |
| 12/04/1990 | CA1277370C Method of measuring the effective inhibitor concentration during a deposition of metal from aqueous electrolytes and an apparatus therefor |
| 11/28/1990 | EP0399786A2 Refractory linings capable of resisting sodium and sodium salts |
| 11/28/1990 | EP0362240A4 Controlling processes for the electrolytic recovery of metals |
| 11/27/1990 | US4973390 Dehydration pretreatment |
| 11/20/1990 | CA1276585C Process for the preparation of electrolytic rare earths or their alloys, and device used in said process |
| 11/15/1990 | WO1990013683A1 Method of obtaining carbon-containing materials |
| 11/14/1990 | EP0396586A1 Cermet anode compositions with high content alloy phase |
| 10/24/1990 | EP0394154A1 Apparatus for the continuous production of a multivalent metal by electrolysis of a halide thereof dissolved in a molten bath |
| 10/10/1990 | EP0391028A1 Continuous silver refining cell |
| 10/09/1990 | US4961837 Process for the production of petroleum tar pitch for use as a binder in the production of electrodes |
| 10/02/1990 | US4960501 Electrolytic cell for the production of a metal |
| 10/02/1990 | US4960500 Waste metal extraction apparatus |
| 10/02/1990 | US4960494 Ceramic/metal composite material |
| 10/02/1990 | CA1274805A1 Resin base anode including carbon black and catalyst thereof on carrier particles |
| 09/26/1990 | EP0389467A1 Self-supporting container, in particular for use as electrolysis cell |
| 09/18/1990 | US4957611 Process and apparatus for the electro-deposition of copper sheets on the cathodic sides of bipolar electrodes made of lead |
| 09/18/1990 | CA1274215A1 Use of magnesium aluminum spinel in light metal reduction cells |
| 09/11/1990 | US4956068 Electrowinning aluminum |
| 09/08/1990 | WO1990010735A1 An anode substrate coated with rare earth oxycompounds |
| 09/08/1990 | CA2030788A1 Anode substrate coated with rare earth oxycompounds |
| 09/05/1990 | EP0385891A1 Diaphragm for electrolysis in a molten metal halidis bath |
| 09/04/1990 | US4954234 Drum electrolysis |
| 09/04/1990 | US4954228 Metal deposited on spheres |
| 09/04/1990 | CA1273604A1 Electrodes, electro-chemical cells containing said electrodes, and process for forming and utilizing such electrodes |
| 08/22/1990 | EP0383470A2 Electrolytic process |
| 08/16/1990 | DE4004575A1 High purity titanium used as cathodic sputtering target - in molten salt electrolytic cell, with parts contacting electrolyte made of nickel to avoid titanium contamination |
| 08/14/1990 | CA2010025A1 Electrolytic process |
| 08/08/1990 | EP0380645A1 Apparatus and method for the electrolytic production of metals |
| 08/08/1990 | CN1009117B Cathodic master plate for metallic electrolytical refining |
| 08/07/1990 | US4946502 Protective coatings for the carrier bars of pre-baked anodes and the emerging part of the anodes |
| 08/01/1990 | EP0155955B1 Electrode for electrometallurgical processes |
| 08/01/1990 | CN1044306A Process and apparatus for manufacture of metal foil |
| 07/31/1990 | US4944859 Magnesium chloride electrolysis |
| 07/26/1990 | WO1990008107A1 Electrochemical cells |
| 07/25/1990 | EP0221187B1 Method of dissolving and recovering noble metals |
| 07/17/1990 | US4941953 Multilayer electrodes resistant to passivation, electrolysis |
| 07/11/1990 | EP0377276A1 Corrosion resistant electrode for electrochemical use |
| 07/04/1990 | EP0376447A1 Electrode for electrochemical use |
| 07/04/1990 | EP0376187A2 Binder pitch for high-purity carbon material and process for preparing same |
| 06/28/1990 | EP0370075A4 Electrolytic cell and process. |
| 06/27/1990 | EP0375556A1 Suction cup for the electrolytic treatment of a surface |
| 06/12/1990 | CA1270227A1 Non conductive edge strip for use on an electrolytic metal refining cathode |
| 06/06/1990 | CN1042737A Molten salt eleclrolysis with non-consumable anode |
| 06/05/1990 | US4931213 Reducing titania with metal-intercalated graphite; corrosion resistant ceramic recovered |
| 05/30/1990 | EP0370075A1 Electrolytic cell and process |
| 05/29/1990 | CA1269639A1 Multi-cell electrolytic tank with inlet and outlet partitions |
| 05/29/1990 | CA1269635A1 Electrolyzing method and electrolytic cell employing fluidized bed |
| 05/23/1990 | EP0369983A1 Process and apparatus for the electrolytic production of a metal foil |
| 05/23/1990 | DE3838828A1 Carbon electrode with a gas-tight, thermally-stable protective bell |
| 05/15/1990 | US4925543 Insoluble anodes for extracting lead from the electrolyte in electrochemical processes for recovering the metals contained in spent accumulations |
| 05/14/1990 | EP0349601A4 Salt-based melting process. |
| 05/09/1990 | EP0367372A1 Manufacture of a soderberg electrode incorporating a high carbon-contributing phenolic sacrificial binder |
| 05/08/1990 | CA1268733A1 Device for isolating and extracting solubilised metals through electrolysis |
| 05/01/1990 | CA1268447A1 Electrolytic electrode comprising sintered interwoven network with dispersed non-reactive material |
| 05/01/1990 | CA1268446A1 Process for improving the purity of transition metals obtained through electrolysis of their halogens in molten salt baths |
| 04/30/1990 | CA2001534A1 Corrosion resistant electrode |
| 04/30/1990 | CA2001533A1 Electrode |
| 04/11/1990 | EP0362240A1 Controlling processes for the electrolytic recovery of metals |
| 04/05/1990 | WO1990003456A1 Metal-recovery device |
| 04/03/1990 | US4913973 Platinum-containing multilayer anode coating for low pH, high current density electrochemical process anodes |
| 04/03/1990 | US4913779 Pulsating circulation of liquid electrolyte, reversing direction of flow prevents clogging |
| 03/29/1990 | DE3832674A1 Metallrueckgewinnungs-vorrichtung Metallrueckgewinnungs-device |
| 03/28/1990 | EP0359876A1 Oxygen-generating electrode and method for the preparation thereof |
| 03/27/1990 | US4911829 Transportable, elongated supported clamping means |
| 03/27/1990 | US4911804 Electrochemical reactor for copper removal from barren solutions |
| 03/14/1990 | EP0225343B1 Expanded metal mesh and coated anode structure |
| 03/07/1990 | EP0357143A2 Gas diffusion electrode |
| 02/27/1990 | US4904356 Electrode for electrorefining |
| 02/27/1990 | US4903520 Method for straightening cast anodes |
| 02/27/1990 | US4903519 Apparatus for straightening cast anodes |
| 02/22/1990 | WO1990001572A1 Waste metal extraction apparatus |
| 02/14/1990 | CN1006814B Durable electrolytic electrode and process for manufacture thereof |
| 02/13/1990 | US4900410 Method of installing a cathodic protection system for a steel-reinforced concrete structure |
| 02/08/1990 | WO1990001078A1 Apparatus and method for the electrolytic production of metals |
| 01/31/1990 | CN1039270A Method and equipment for electrolyzing metal mn and mno2 in same electrolyzer |
| 01/31/1990 | CN1006647B Durable electrolytic electrode and process for manufacturing same |