| Patents for C25C 1 - Electrolytic production, recovery or refining of metals by electrolysis of solutions (5,617) |
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| 09/19/2002 | DE10153544A1 Vorrichtung zur Steuerung des Durchflusses in einem Galvanisierungsprozeß Apparatus for controlling the flow in a galvanizing |
| 09/19/2002 | CA2439914A1 A method for the removal of calcium from a zinc process sulfate solution |
| 09/19/2002 | CA2439061A1 Method and device for recovering metals with pulsating cathode currents also combined with anode coupling processes |
| 09/17/2002 | US6451089 Process for direct electrowinning of copper |
| 09/11/2002 | CN1369023A Method for electrochemically producing alkali metal from aqueous solution |
| 09/04/2002 | EP0990062B1 Anode for electrolytic refining |
| 09/04/2002 | EP0835334B1 Production of zinc fuel pellets |
| 09/04/2002 | CN1367039A Preparation method of crystal silver catalyst |
| 08/29/2002 | WO2002066708A1 Method for electrolytic production of ultra-pure zinc or zinc compounds from zinc primary and secondary raw materials |
| 08/28/2002 | CN1366093A Process for purifying gold by use of controllable pulse and auxiliary electrode |
| 08/27/2002 | US6440376 Method for dissolving noble metals out of segregated ores containing noble metals |
| 08/21/2002 | CN2506659Y Anode plate for electrolyzing metal manganes |
| 08/14/2002 | EP1230440A1 Cathode plate |
| 08/14/2002 | EP1230439A1 Method for preventing stray currents in peripheral system parts during an electrolysis process for obtaining metals |
| 08/07/2002 | EP1228360A1 Method for inspecting electrode surface quality |
| 08/07/2002 | CN1362999A Electrowinning cell incorporating metal ion filtration apparatus |
| 08/06/2002 | US6428679 Electrodeposition of silver in form of silver metal and redissolution of deposited silver to give final solution, in which electrodeposition is carried out at prescribed current and both steps are carried out in same apparatus |
| 08/06/2002 | US6428604 Hydrometallurgical process for the recovery of nickel and cobalt values from a sulfidic flotation concentrate |
| 07/31/2002 | EP0912777B1 Alkoxylated dimercaptans as copper additives |
| 07/30/2002 | CA2237710C Recovery of nickel from copper refinery tankhouse electrolyte |
| 07/24/2002 | EP1225252A1 High current density electrolytic decomposition process for copper |
| 07/24/2002 | CN1360065A Bacterial leaching-extraction-electric deposition process for extracting Zn from zinc ore |
| 07/11/2002 | US20020090868 System and method for the production and use of hydrogen on board a marine vessel . |
| 07/11/2002 | US20020088719 Low temperature alkali metal electrolysis |
| 07/10/2002 | EP1221498A1 Electrolysis apparatus for electrolytic copper foil and electrolytic copper foil produced in the electrolysis apparatus |
| 07/03/2002 | CN1357059A 阴极板 Cathode plate |
| 06/25/2002 | US6409908 By electrolysis using alkali metal amalgam as anode, a solid electrolyte which conducts alkali metal ions and a liquid alkali metal as cathode, the alkali metal amalgam as anode is kept in motion by stirring and/or by means of a pump |
| 06/13/2002 | WO2002046481A1 Method for the hydrolytic precitpitation of iron |
| 06/11/2002 | US6405138 Determination of silver in a photographic solution |
| 06/05/2002 | EP1210471A1 Method for electrochemically producing an alkali metal from an aqueous solution |
| 06/04/2002 | US6398939 An electrowinning cell and an electrolyte circulation system for forming copper, where fresh electrolytic solution entering the tank is directed uniformly between the cathode and anode plates |
| 05/30/2002 | WO2002002848A3 Method and apparatus for processing metals, and the metals so produced |
| 05/29/2002 | CN1351197A Metal fine machining apparatus and method |
| 05/21/2002 | US6391188 Processes and apparatus for recovery and removal of copper from fluids |
| 05/21/2002 | CA2224148C Process for making shaped copper articles |
| 05/15/2002 | CN1084803C Process for making copper metal powder, copper oxides and copper foil |
| 05/14/2002 | US6387243 Contactors cationic exchange resin with solvent; circulationdirect current |
| 05/14/2002 | US6387240 Method for the removal of sulfur in the nickel leaching process |
| 05/08/2002 | CN1348021A Anode plate for electrolyzing metal manganese |
| 05/07/2002 | US6383460 Subjecting the concentrate containing nickel and cobalt hydroxide to a leaching stage with an ammonium solution to produce a leach solution containing nickel or cobalt values and a residue, and controlling the concentration of metals |
| 04/10/2002 | EP1194612A1 Electrowinning cell incorporating metal ion filtration apparatus |
| 04/09/2002 | US6368486 Formed from alkali metal halides using a co-electrolyte; suitable for automation and economical |
| 04/04/2002 | WO2002027072A1 Hydrometallurgical processes utilising solutions containing dissolved ferric and/or ferrous salts |
| 04/04/2002 | WO2002026701A2 Ionic liquids and their use as solvents |
| 04/03/2002 | CN1342786A Process for preparing high-purity gold by electrolyzing extracted gold-contained organic phase |
| 03/28/2002 | WO2002024966A1 Recovery of nickel and cobalt values from a sulfidic flotation concentrate by chloride assisted oxidative pressure leaching in sulfuric acid |
| 03/27/2002 | EP0847454B1 Intense yet energy-efficient process for electrowinning of zinc in mobile particle beds |
| 03/26/2002 | CA2356050C Process for the solvent extraction of nickel and cobalt values in the presence of magnesium ions from a solution |
| 03/26/2002 | CA2356048C Process for the recovery of nickel and/or cobalt from a concentrate |
| 03/13/2002 | CN1339619A Method for removing bismuth and antiomny from silver electrolyte |
| 03/12/2002 | US6355155 Method and a device for recovering metals comprising dissolving, concentrating and electrowinning means with rotatable cathode |
| 02/28/2002 | WO2002016289A2 System and method for the production and use of hydrogen on board a marine vessel |
| 02/28/2002 | CA2423109A1 System and method for the production and use of hydrogen on board a marine vessel |
| 02/26/2002 | US6350355 Starting cathodes made of copper band for copper electrolysis and a method for the production thereof |
| 02/13/2002 | CN1335898A Electrolytic copper foil with carrier foil and method for manufacturing the same |
| 02/07/2002 | DE19940699C2 Verfahren zum Verhindern von Streuströmen in peripheren Anlagenteilen in einer Elektrolyse zum Gewinnen von Metallen A method for preventing stray currents in peripheral system parts in an electrolysis for recovering metals |
| 02/06/2002 | CN2475742Y Continuously filled consumable anode |
| 01/31/2002 | US20020012621 Process for the recovery of nickel and / or cobalt from a concentrate |
| 01/30/2002 | CN2474548Y Electrolyzer |
| 01/23/2002 | EP1173626A1 Hydrometallurgical processing of lead materials in the presence of fluotitanate compounds |
| 01/22/2002 | US6340427 Solution purification method for electrolyte |
| 01/22/2002 | US6340423 Hydrometallurgical processing of lead materials using fluotitanate |
| 01/10/2002 | WO2002002848A2 Method and apparatus for processing metals, and the metals so produced |
| 01/09/2002 | EP1170400A1 Electrolytic copper foil with carrier foil and method for manufacturing the same |
| 01/09/2002 | CN1330171A Anode for electrolytically depositing metal manganese |
| 01/08/2002 | CA2221940C Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulphide ores |
| 01/02/2002 | EP1165862A1 Process for recovering copper from a high acid mixed metal solution |
| 12/25/2001 | US6332973 Using a circuit and filter for purification of baths, plating out copper from solution and circulation |
| 12/20/2001 | WO2001096629A1 Edge insulating member for electrode plate, method of locking and unlocking the edge insulating member, and edge insulating member installation jig |
| 12/19/2001 | EP0951573B1 Method for extracting non-ferrous metals such as zinc by electrolysis and by adding substances containing phosphor |
| 12/19/2001 | CN2466166Y Sealed fixing combined electrolyzer false bottom |
| 12/12/2001 | CN2464741Y Auxiliary electrode for gold electrolyzing purifying |
| 12/12/2001 | CN2464740Y Fluid state electrolytic recovering gold apparaus |
| 12/05/2001 | EP1160358A1 Electrolytic refining method of copper and electrolytic copper |
| 12/05/2001 | EP1159467A1 Process for the recovery of tin, tin alloys or lead alloys from printed circuit boards |
| 12/05/2001 | EP0991786B1 Separating metal ions absorbed on a resin and installation for recycling photographic effluents including an exchanger and an electrolysis vessel |
| 11/29/2001 | WO2001090445A1 Method of producing a higher-purity metal |
| 11/22/2001 | WO2001088228A1 Electrolysis apparatus for electrolytic copper foil and electrolytic copper foil produced in the electrolysis apparatus |
| 11/22/2001 | US20010042686 Electrodeposition apparatus for producing electrodeposited copper foil and electrodeposited copper foil produced by use of the apparatus |
| 11/22/2001 | CA2756715A1 Method for thiosulfate leaching of precious metal-containing materials |
| 11/22/2001 | CA2698578A1 Method for thiosulfate leaching of precious metal-containing materials |
| 11/20/2001 | US6319483 Separating jarosite from other components of the solution and concentrating the gallium by dividing into solid and liquid fractions; |
| 11/15/2001 | WO2001086027A1 Process for extracting copper or iron |
| 11/15/2001 | WO2001085382A1 Method of manufacturing conductive structure |
| 11/15/2001 | US20010040101 Recovery of metal from solution |
| 11/14/2001 | EP1154044A1 Recovery of metal from solution |
| 11/13/2001 | US6315811 Method for producing platinum |
| 11/07/2001 | EP1151151A1 Electrowinning anodes which rapidly produce a protective oxide coating |
| 11/06/2001 | CA2050201C Electrogeneration of bromine and use thereof in recovery of precious metals and water treatment |
| 10/31/2001 | EP1149051A1 Sludge-free treatment of copper cmp wastes |
| 10/30/2001 | US6309531 Process for extracting copper or iron |
| 10/25/2001 | US20010032686 Good corrosion resistance and magnetic properties; |
| 10/24/2001 | CN1073634C Membrane powderless electrolysis process |
| 10/23/2001 | US6306282 Sludge-free treatment of copper CMP wastes |
| 10/18/2001 | WO2001077413A1 Cathode copper for producing a copper wire rod |
| 10/17/2001 | CN1317600A Low temp alkali metal electrolysis |
| 10/09/2001 | US6299754 Apparatus for the electrolytic desilvering of used photographic solutions, more particularly used fixing solutions or used bleach-fixing solutions. |
| 09/25/2001 | US6294070 Process for electrolytically producing metal-amalgam |
| 09/19/2001 | EP0800567B1 Method for demetallating refinery feedstreams |
| 09/19/2001 | CN1071382C Polyacrylic acid additive for copper electrolytic purification and copper electrolytic metallurgy |