| Patents for C25C 7 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells (6,884) |
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| 01/30/1990 | US4897170 High melting novolak resin |
| 01/30/1990 | CA1265095A2 Electrolytic cell for recovery of metals from metal bearing materials |
| 01/25/1990 | WO1990000636A1 Device for recovering silver contained in a solution |
| 01/16/1990 | US4894129 Method and apparatus for positioning sheet-like objects |
| 01/10/1990 | EP0349601A1 Salt-based melting process |
| 01/10/1990 | CN2050849U Composite electrode sheet used for electrolyzing copper by series connected mathod |
| 01/03/1990 | CN1006308B Process and apparatus of auto-reinforcing suction for alumininum electrolysing tanks |
| 12/27/1989 | CN1038315A Process for recovering lead from exhausted accumulator |
| 12/21/1989 | DE3922959A1 Method and circuitry for controlling an electrode potential in electrolysis |
| 12/19/1989 | US4888102 Metal tube as protective cover and basket for broken glass from glass tube enclosing electrode and electrolyte |
| 12/13/1989 | EP0345864A1 Process for making a membrane |
| 12/13/1989 | EP0197071B1 Production of zinc from ores and concentrates |
| 12/13/1989 | EP0172847B1 Metal recovery process |
| 12/06/1989 | EP0344858A1 Composite materials in the form of lead or its alloys reinforced with powders and/or ceramic fibres, and uses therof |
| 12/06/1989 | EP0344378A1 Oxygen-generating electrode and method for the preparation thereof |
| 12/05/1989 | US4885072 Container for corrosive electrolyte |
| 12/05/1989 | CA1263627A1 Cathode hangers |
| 11/29/1989 | EP0343188A1 Electrically conductive titanium suboxides. |
| 11/23/1989 | EP0342969A1 Disposable cell for recovering conductive metal and method of use |
| 11/21/1989 | US4882027 For electrolytic refining or electrowinning of copper |
| 11/21/1989 | US4882017 Method and apparatus for making light metal-alkali metal master alloy using alkali metal-containing scrap |
| 11/15/1989 | CN2047789U Level detector for solution electrolyzer |
| 11/14/1989 | US4880506 Electrolytic cells, nuclear fuels |
| 11/02/1989 | WO1989010437A1 A method for the electrolytic production of a polyvalent metal and equipment for carrying out the method |
| 11/01/1989 | CN1036805A Direct electrolytic refining of copper scrap by stainless steel anode frame |
| 10/25/1989 | EP0338356A1 Time-current and time-potential measurements for controlling and regulating galvanic copper deposition |
| 10/25/1989 | CN2046504U Electrolyzer for producing metal powder |
| 10/11/1989 | EP0335989A1 Insoluble anode made of lead alloy |
| 10/11/1989 | EP0222829B1 Cathodic protection system for a steel-reinforced concrete structure and method of installation |
| 10/05/1989 | WO1989009296A1 Transporting a liquid past a barrier |
| 10/03/1989 | US4871438 Cermet anode compositions with high content alloy phase |
| 10/03/1989 | US4871436 Suspension bar for anode and/or cathode sheets in the electrolytic refining of metals and a method for the manufacture of such a suspension bar |
| 09/26/1989 | US4869790 Metal separation process |
| 09/26/1989 | CA1260430A1 Coated valve metal anode for electrolytic extraction of metals or metal oxides |
| 09/26/1989 | CA1260429A1 Electrochemical production of zinc in membrane cell using chloride and copper ions |
| 09/26/1989 | CA1259950A1 Coated valve metal anode for electrolytic extraction of metals or metal oxides |
| 09/26/1989 | CA1259949A1 Coated valve metal anode for electrolytic extraction of metals or metal oxides |
| 09/20/1989 | EP0228443B1 Cell arrangement for electrometallurgical purposes, in particular aluminun electrolysis |
| 09/19/1989 | US4867858 Insoluble anode made of lead alloy |
| 09/05/1989 | US4863580 Waste metal extraction apparatus |
| 09/05/1989 | CA1259053A1 Durable electrode for electrolysis and process for production thereof |
| 08/29/1989 | CA1258822A1 Separator-gas electrode combination |
| 08/22/1989 | US4859293 Making gold iodide solution in electrolytic cell; basification, reduction, precipitation |
| 08/16/1989 | EP0328189A2 Process for producing an electrical conductor, in particular suitable for use as an insoluble anode in electrowinning processes, and in electrochemical processes in general, and intermediate product thereof. |
| 08/08/1989 | US4855030 Dendrite inhibitor |
| 08/01/1989 | CA1258043A1 Method and apparatus for acid mist reduction |
| 07/26/1989 | EP0324888A1 Method of producing a high purity aluminum-lithium mother alloy |
| 07/25/1989 | US4851098 Apparatus for hanging and handling plate members |
| 07/19/1989 | EP0324563A1 Electrolytic cell for the production of a metal |
| 07/19/1989 | EP0324266A1 Method for setting electrodes in aluminium electrolysis cells |
| 07/18/1989 | CA1257559A1 Molten salt electrowinning anode with coating of fluorine containing oxycompound of cerium |
| 07/13/1989 | WO1989006289A1 Electrolytic cell and process |
| 07/11/1989 | US4846943 Manufacture of an alkali metal aluminum halide compound and alkali metal |
| 07/11/1989 | CA1257221A1 Process and installation for percolation electrolysis through one or a plurality of porous volumic electrodes |
| 07/06/1989 | DE3841510A1 Lifting device for group-wise hanging of electrodes onto electrolytic baths |
| 07/05/1989 | CN1004710B Method and apparatus for stripping the metal layer electro-deposited on cat hod plate |
| 06/29/1989 | DE3842510A1 Method for straightening and stiffening (strengthening, reinforcing) starting plates for electrolysis |
| 06/28/1989 | EP0322326A1 Protective coating for studs and emerging parts of prebaked anodes |
| 06/20/1989 | US4840718 Wedge shaped with mating holders |
| 06/20/1989 | US4840717 Silver recovery cell |
| 06/20/1989 | US4840710 Method of stripping electrolytically deposited copper from a cathode |
| 06/20/1989 | CA1256232A1 Cell for the electrolytic production of aluminum |
| 06/14/1989 | EP0319552A1 Drum electrolysis |
| 05/31/1989 | CN1004363B Concurrent production of electrolytic metallic manganese and fibred electrolytic manganese dioxide |
| 05/30/1989 | US4834851 Permanent anode |
| 05/30/1989 | US4834850 Efficient electrolytic precious metal recovery system |
| 05/30/1989 | US4834849 Metal recovery method and apparatus |
| 05/30/1989 | US4834842 Method of measuring the effective inhibitor concentration during a deposition of metal from aqueous electrolytes and test apparatus therefor |
| 05/18/1989 | WO1989004383A1 Cermet anode compositions with high content alloy phase |
| 05/02/1989 | CA1253456A1 Electrode with titanium or niobium substrat, tantalum and anodically active layers |
| 04/25/1989 | US4824543 Electrode design for increased current distribution |
| 04/25/1989 | US4824541 Fluid bed electrolysis cell |
| 04/25/1989 | US4824531 Electrolysis method and packed cathode bed for electrowinning metals from fused salts |
| 04/11/1989 | CA1252418A1 Electrolytic cell and method |
| 04/06/1989 | DE3731285A1 Dimensionally stable anode, method for manufacturing it, and use thereof |
| 04/05/1989 | EP0310563A1 Process for the electrochemical separation of metal mixtures and alloys |
| 04/04/1989 | CA1252066A1 Durable electrode for electrolysis and process for production thereof |
| 03/29/1989 | EP0309389A2 Electrolytic precious metal recovery system |
| 03/29/1989 | EP0308415A1 Process and apparatus for the electro-deposition of copper or other metals on bipolar electrodes made of lead |
| 03/14/1989 | CA1251161A1 Continuous control method of the level of dissolved metal in a molten salt bath, and its use for the continuous addition of said metal to the salts in an electrolysis cell |
| 03/14/1989 | CA1251160A1 Process for the production of a metal by way of halogen electrolysis in a molten salt bath, including double simultaneous and continuous deposition, and devices used in said process |
| 03/09/1989 | WO1989001994A1 Molten salt electrolysis with non-consumable anode |
| 03/09/1989 | WO1989001993A1 Non-consumable anode for molten salt electrolysis |
| 03/09/1989 | WO1989001992A1 A composite ceramic/metal material |
| 03/09/1989 | WO1989001991A1 A ceramic/metal composite material |
| 03/09/1989 | DE3731510C1 Anode and cell for electrolytic production of non-ferrous metals |
| 03/08/1989 | EP0306102A1 Molten salt electrolysis with non-consumable anode |
| 03/08/1989 | EP0306101A1 Non-consumable anode for molten salt electrolysis |
| 03/08/1989 | EP0306100A1 A composite ceramic/metal material |
| 03/08/1989 | EP0306099A1 A ceramic/metal composite material |
| 02/28/1989 | US4808283 Electrolysis of mixed molten lithium and potassium chlorides unsing hollow cylinder aluminum cathode |
| 02/28/1989 | US4807689 Rotary take-off system and method of operating same |
| 02/28/1989 | CA1250544A1 Method and device for the continuous manufacture of lithium |
| 02/21/1989 | US4806224 Electrolytic process |
| 02/21/1989 | US4806213 Method and apparatus for stripping electrolytic precipitate from supporting structures |
| 02/15/1989 | EP0302891A1 Method and plant for electrolysis by seeping through one or a plurality of porous voluminal electrodes. |
| 02/14/1989 | US4804646 Light weight shaped opaque aluminum borate product and method of making same |
| 02/14/1989 | US4804642 High strength, lightweight |
| 02/14/1989 | US4804452 Electrolytic processor |
| 02/14/1989 | US4804448 High temperature electrolytic cell containing alkali salt electrolyte melt and solid electrolyte |