| Patents for C25C 3 - Electrolytic production, recovery or refining of metals by electrolysis of melts (10,924) |
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| 08/10/2000 | WO2000046428A1 Graphite cathode for electrolysis of aluminium |
| 08/10/2000 | WO2000046427A1 Impregnated graphite cathode for electrolysis of aluminium |
| 08/10/2000 | WO2000046426A1 Graphite cathode for electrolysis of aluminium |
| 08/10/2000 | CA2361671A1 Electrolytic cell arrangement for production of aluminium |
| 08/09/2000 | EP1025284A1 Plant for removing fluor containing waste gases |
| 08/09/2000 | CN1262343A Process for preparing low-iron low-magnesium high-purity rare-earth metal mixture |
| 08/03/2000 | WO2000044963A1 Electrolytic cells swept by an electromagnetic field and process therefor |
| 08/03/2000 | WO2000044952A1 Inert electrode containing metal oxides, copper and noble metal |
| 08/03/2000 | DE19909614C1 Immersion sensor used for monitoring aluminum electrolysis cells comprises a bath electrode arranged on a carrier with an immersion end |
| 08/03/2000 | CA2360074A1 Electrolytic cells swept by an electromagnetic field and process therefor |
| 08/02/2000 | CN1261631A Producing alkali metal from alkali metal analgam by electrochemical method |
| 08/02/2000 | CN1055140C Rare earth molten-salt electrolysis ceramic anode and preparing method thereof |
| 08/02/2000 | CN1055131C Aluminium-sodium composite lithium salt and application thereof |
| 07/27/2000 | WO1999066004A9 Aqueous composition containing a water-soluble or water-dispersable synthetic polymer |
| 07/25/2000 | US6093304 The tops of the carbon blocks forming the cathode cell bottom contain a series of parallel channels or grooves covered by a pool or layer of molten aluminium for durability and efficient drainage of melted aluminum produced by electrolysis |
| 07/18/2000 | US6090264 Tool holding device for the extraction and transfer of anodes in the center of an aluminum factory and equipment to put into operation such a device |
| 07/13/2000 | WO2000040783A1 High-strength low-alloy steel anodes for aluminium electrowinning cells |
| 07/13/2000 | WO2000040782A1 Aluminium electrowinning cells with oxygen-evolving anodes |
| 07/13/2000 | WO2000040781A1 Electrolytic cell with improved alumina supply |
| 07/11/2000 | US6086745 Dehalogenation from solid crystalline zirconium or hafnium monochlorides and monobromides by a reduction process without disturbing the metal atoms sublattice |
| 07/06/2000 | WO2000039360A1 Electrolysis apparatus/methods of using urania in elecrodes and methods of producing reduced substances from oxidized substances |
| 07/05/2000 | CN2386050Y Electrolytic bath with anodic sealing apron |
| 07/04/2000 | US6083362 Dimensionally stable anode for electrolysis, method for maintaining dimensions of anode during electrolysis |
| 06/29/2000 | WO2000037691A1 Method and apparatus for the production of aluminium from alumina ore by aluminiumsulfide process |
| 06/29/2000 | DE19859563A1 Production of an alkali metal originating from alkali metal amalgam uses electrolysis using an anode containing an alkali metal amalgam, an alkali metal ion conducting solid electrolyte and a liquid alkali metal as cathode |
| 06/22/2000 | WO2000036187A1 Multi-layer cathode structures |
| 06/22/2000 | WO2000036186A1 Method for producing high purity primary metal of aluminum |
| 06/20/2000 | US6077415 Multi-layer non-carbon metal-based anodes for aluminum production cells and method |
| 06/14/2000 | EP1007598A1 Aqueous composition containing a water-soluble or water-dispersible synthetic polymer |
| 06/14/2000 | EP0979315A4 Titanium crystal and titanium |
| 06/14/2000 | CN1256721A Method for controlling the AIF3 content in cryolite melts |
| 06/13/2000 | US6074545 Process for the electrolytic production of metals |
| 05/25/2000 | WO2000029644A1 Wettable and erosion/oxidation-resistant carbon-composite materials |
| 05/24/2000 | CN1052760C Recovering method for compound containing rare-earth elements can be reused |
| 05/23/2000 | US6066247 Method for producing aluminum metal from aluminum trichloride |
| 05/23/2000 | US6065867 Method and device for measuring the temperature and the level of the molten electrolysis bath in cells for aluminum production |
| 05/20/2000 | CA2259565A1 Anode improvements and a process for the manufacture and production of aluminum |
| 05/17/2000 | EP0815290B1 Butt and thimble press |
| 05/16/2000 | US6063254 Method for producing titanium crystal and titanium |
| 05/16/2000 | US6063247 Modified electrolyte and diaphragm for fused salt electrolysis |
| 05/03/2000 | EP0996773A1 A drained cathode cell for the production of aluminium |
| 05/03/2000 | EP0996772A1 Aluminium production cell design |
| 05/02/2000 | US6056865 Dry chemical reprocessing method and dry chemical reprocessing apparatus for spent nuclear fuel |
| 04/26/2000 | EP0874789B1 Protection of porous bodies against oxidation |
| 04/26/2000 | CN1051810C Arrangement for compensation of damaging magnetic fields on transversally disposed electrolysis cells |
| 04/19/2000 | CN2374554Y Multifunctional electrolytic set tools wagon |
| 04/19/2000 | CN1250875A Method for measuring resistance of welded position of cathode in aluminium electrolyzer |
| 04/12/2000 | CN2373457Y Automatic positioning device for aluminium electrolytic electric anode stud puller head |
| 04/12/2000 | CN1250113A Coke grain roast starting method for aluminium electrolyzer with pre-roasted anode |
| 04/11/2000 | CA2010316C Cathode protection |
| 04/06/2000 | WO2000018987A1 A method and a device for feeding an electrolysis cell |
| 04/05/2000 | CN2372329Y Molten-salt electrolytic cell for producing rare metal and rare earth alloy |
| 04/05/2000 | CN1249363A Process for preparing mixed rare-earth metals |
| 04/05/2000 | CN1051057C Preparation of anhydrous magnesium chloride-contg. electrolyte from hydrated magnesium chloride and production of magnesium metal |
| 04/04/2000 | CA2003660C Supersaturation plating of aluminum wettable cathode coatings during aluminum smelting in drained cathode cells |
| 03/29/2000 | CN2371200Y Prebaked anode |
| 03/23/2000 | WO2000015873A1 Method and device for a dry cleansing plant for aluminium reduction furnaces exhaust gas |
| 03/21/2000 | US6039862 Electrochemically combusting a fuel with oxygen ions from alumina to produce a flow of oxygen ions from said alumina while causing the electric current to flow from molten aluminum bath to produce aluminum from alumina |
| 03/21/2000 | US6039791 Fused calcined petroleum coke and method of formation |
| 03/16/2000 | DE19845258C1 Installation for sucking away waste gases and using their heat for aluminum multi cell electrolysis plant comprises waste gas collector hoods and suction ducts for each electrolysis cell of the plant |
| 03/15/2000 | EP0984907A1 Production of heat-treated carbon bodies |
| 03/15/2000 | CN1247235A High-purity zinc and its preparing process |
| 03/08/2000 | CN1246897A Process for electrolytic production of metals |
| 03/07/2000 | US6033550 Process for controlling the alumina content of the bath in electrolysis cells for aluminum production |
| 03/02/2000 | WO2000011243A1 Bipolar cell for the production of aluminium with carbon cathodes |
| 03/02/2000 | CA2339854A1 Bipolar cell for the production of aluminium with carbon cathodes |
| 03/01/2000 | CN1049930C Method for making industrial aluminium electrolytic tank chemical guard |
| 03/01/2000 | CN1049929C Point-type connecting blanking and dry-purifying self-baking multi-anode aluminium electrolytic tank device |
| 02/29/2000 | US6030518 Reduced temperature aluminum production in an electrolytic cell having an inert anode |
| 02/24/2000 | WO2000009783A1 Method and apparatus for analysis of chemical constituents in an electrolysis cell |
| 02/24/2000 | WO2000003068A8 Molten salt electrolytic cell having metal reservoir |
| 02/24/2000 | CA2340441A1 Method and apparatus for analysis of chemical constituents in an electrolysis cell |
| 02/16/2000 | EP0979315A1 Titanium crystal and titanium |
| 02/16/2000 | CN1244813A Process for recovering CF4 and C2F6 from a gas |
| 02/15/2000 | US6024847 Producing titanium sponge in a container and performing titanium fused salt electrolysis in situ in the same container to produce high purity titanium crystal |
| 02/15/2000 | CA2159832C Method and arrangement for closing and cooling the top of an anode casing for a soderberganode in an electric cell for production of alumini um |
| 02/10/2000 | WO2000006805A1 Slow consumable non-carbon metal-based anodes for aluminium production cells |
| 02/10/2000 | WO2000006804A1 Nickel-iron alloy-based anodes for aluminium electrowinning cells |
| 02/10/2000 | WO2000006803A1 Nickel-iron alloy-based anodes for aluminium electrowinning cells |
| 02/10/2000 | WO2000006802A1 Cells for the electrowinning of aluminium having dimensionally stable metal-based anodes |
| 02/10/2000 | WO2000006801A1 Porous non-carbon metal-based anodes for aluminium production cells |
| 02/10/2000 | WO2000006800A1 Multi-layer non-carbon metal-based anodes for aluminium production cells |
| 02/10/2000 | CA2339092A1 Cells for the electrowinning of aluminium having dimensionally stable metal-based anodes |
| 02/10/2000 | CA2339011A1 Nickel-iron alloy-based anodes for aluminium electrowinning cells |
| 02/06/2000 | CA2279698A1 A dimensionally stable anode for electrolysis, method for maintaining dimensions of anode during electrolysis |
| 02/01/2000 | CA2150367C Method and plant for grinding old brasques and similar products |
| 01/26/2000 | EP0973956A1 Substrate body with a protective coating |
| 01/26/2000 | EP0973955A1 Method for producing a coating containing titanium boride |
| 01/26/2000 | EP0610373B1 Continuous prebaked anode cell |
| 01/26/2000 | CN2360423Y Anode steel grab carbon protective ring of aluminium electrolytic tank |
| 01/25/2000 | CA2130780C Electrolytic production of magnesium metal with feed containing magnesium chloride ammoniates |
| 01/20/2000 | WO2000003068A1 Molten salt electrolytic cell having metal reservoir |
| 01/12/2000 | EP0970264A1 Aluminium production cell and cathode |
| 01/06/2000 | WO2000000657A1 Cold rolled steel sheet excellent in baking hardenability |
| 01/05/2000 | EP0777765B1 Aluminium-immersed assembly for aluminium production cells |
| 01/04/2000 | US6010611 Measurement of alumina in reduction pots |
| 12/29/1999 | CN1239742A Dry fume purifying system for self-roasting anodic aluminium electrolysis |
| 12/28/1999 | CA2018130C Organoaluminum electrolytes for the electrolytic deposition of high-purity aluminum |
| 12/23/1999 | WO1999066105A1 Process for recovery of lead from spent batteries |
| 12/23/1999 | WO1999066004A1 Aqueous composition containing a water-soluble or water-dispersable synthetic polymer |