| Patents for C25C 1 - Electrolytic production, recovery or refining of metals by electrolysis of solutions (5,617) |
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| 09/18/2001 | US6290835 Treatment of waste from printed circuit board production for recovery of tin and environmentally safe disposal |
| 09/12/2001 | EP0991785B1 A method and a device for recovering metals comprising dissolving , concentrating and electrowinning means with rotatable cathode |
| 09/12/2001 | CN1312867A Method for removing sulfur in nickel leaching process |
| 09/11/2001 | US6287448 From aqueous solution of lithium salt |
| 08/30/2001 | WO2001062993A1 Process and apparatus for recovery of cyanide and metals |
| 08/30/2001 | WO2001062991A1 Method for upgrading steel plant dust |
| 08/30/2001 | CA2400806A1 Process and apparatus for recovery of cyanide and metals |
| 08/29/2001 | CN1310238A Metal manganese electrolyzing techn with roasted ore to replace natural manganese dioxide ore |
| 08/22/2001 | EP0795046B1 Process for making copper metal powder, copper oxides and copper foil |
| 08/22/2001 | CN2443971Y Apparatus of working up positive mud for electrolysing gold |
| 08/22/2001 | CN1069934C Electrolytic metallurgy of lead |
| 08/15/2001 | CN2443007Y Electrolyzer for liquid containing gold |
| 08/09/2001 | US20010011636 Recovering metal from solution |
| 07/31/2001 | US6267827 Ferromagnetism; corrosion resistance |
| 07/19/2001 | WO2001051685A2 Removal of metals from solution |
| 07/11/2001 | EP1114883A1 Process for the electrochemical production of alkali metals from alkali metal amalgams |
| 07/10/2001 | US6258251 Electrolytic cell |
| 07/10/2001 | US6258245 Adding antifoam formulation to acidic leach solution prior to agglomeration of mineral ore to inhibit formation of aerosol mist |
| 07/03/2001 | USRE37251 Pressure oxidation of an ore or concentrate in the presence of oxygen and an acidic solution containing halogen ions and a source of bisulfate or sulfate ions to extract non-cuprous metals |
| 06/27/2001 | EP0695377B1 Process for making copper metal powder, copper oxides and copper foil |
| 06/27/2001 | CN1300714A Process for preparing manganese compound from fume and its afterheat |
| 06/26/2001 | US6251258 A direct current voltage is applied between electrodes that are provided in an acid solution to deposit heavy metal on electrodes; electrode cleaning step of reversing the polarity applied between said electrodes |
| 06/21/2001 | WO2001044520A1 Process for electrolytic production of highly pure zinc or zinc compounds from primary and secondary zinc raw materials |
| 06/06/2001 | CN1298029A Integral equipment and technological process of adsorption, desorption and electrolysis of gold leachate |
| 05/30/2001 | EP1103264A2 Active oxygen containing solution for promoting growth of tissue cells at wound sites |
| 05/30/2001 | CN1297067A Solvent extraction process for purifying copper electrolysis solution |
| 05/23/2001 | CN1066210C Electrolytic anode plate |
| 05/23/2001 | CN1066203C Process for recovery of zinc from sphalerite containing ores or concentrates |
| 05/17/2001 | WO2001035083A1 Method for inspecting electrode surface quality |
| 05/17/2001 | WO2001034880A1 Electrolytic copper foil with carrier foil and method for manufacturing the same |
| 05/16/2001 | EP1099010A2 Method for recovering precious metals |
| 05/03/2001 | WO2001030492A1 Crystalline silver catalysts for methanol oxidation to formaldehyde |
| 05/03/2001 | US20010000597 Recovery of zinc from geothermal brines |
| 05/03/2001 | CA2388992A1 Crystalline silver catalysts for methanol oxidation to formaldehyde |
| 05/01/2001 | US6224723 Electrowinning anodes which rapidly produce a protective oxide coating |
| 04/25/2001 | EP0832303B1 Chloride assisted hydrometallurgical extraction of metal |
| 04/18/2001 | EP0951587B1 Mobius electrolysis |
| 04/10/2001 | CA2204858C Process for making copper metal powder, copper oxides and copper foil |
| 03/27/2001 | US6207037 Recovery of metal from solution |
| 03/22/2001 | WO2001020062A1 High current density electrolytic decomposition process for copper |
| 03/14/2001 | CN1287580A Starting cathodes made of copper band for copper electrolysis and a method for the production thereof |
| 03/08/2001 | WO2001016401A1 Method for preventing stray currents in peripheral system parts during an electrolysis process for obtaining metals |
| 03/08/2001 | DE19940699A1 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 |
| 03/08/2001 | DE19940069A1 Verfahren zur elektrochemischen Herstellung eines Alkalimetalls aus wäßriger Lösung A method for the electrochemical production of an alkali metal from an aqueous solution |
| 03/01/2001 | WO2001014616A1 Method for electrochemically producing an alkali metal from an aqueous solution |
| 02/20/2001 | US6190515 Silver refining installation |
| 02/14/2001 | EP0992615B1 Startkathoden aus Kupferband für die Kupferelektrolyse und Verfahren zu deren Herstellung |
| 02/13/2001 | US6187167 Recovery of silver from a photographic fixer solution in an electrolytic cell is controlled so as to maintain a high current efficiency |
| 02/13/2001 | US6187156 Anode for electrolytic refining |
| 02/06/2001 | US6183622 Ductility additives for electrorefining and electrowinning |
| 02/06/2001 | US6183545 Aqueous solutions for obtaining metals by reductive deposition |
| 01/30/2001 | US6179981 Method for separating technetium from a nitric solution |
| 01/24/2001 | EP1070770A2 Recycling of used anodes in the electrolytic refining of metals |
| 01/24/2001 | EP1070150A1 Method for treating steel works dust by wet process |
| 01/23/2001 | US6176997 Apparatus and method for copper extraction by in-situ electrolysis in heap-leaching of ores |
| 01/17/2001 | CN2414752Y Gold and siver ion water producing device |
| 01/17/2001 | CN1060819C Process for production of pure solutions of tungsten and molybdenum |
| 01/04/2001 | DE19928027A1 Verfahren zur Herstellung von Platin A process for the preparation of platinum |
| 01/03/2001 | CN1278564A Method and system for recovering and removing copper from fluid |
| 01/03/2001 | CN1060219C Method of producing electrolytic copper from germ soaking of sulfide mineral |
| 01/02/2001 | CA2178776C Method and apparatus for automated stripping of zinc sheets from aluminum cathode base plates |
| 12/28/2000 | WO2000079029A2 Method and apparatus for electro-deposition of metal |
| 12/28/2000 | WO2000079028A1 Cathode plate |
| 12/28/2000 | CA2377264A1 Method and apparatus for electro-deposition of metal |
| 12/27/2000 | EP1063307A2 Method for recovering copper by solvent extraction in alternate steps |
| 12/26/2000 | US6165344 Method for removing copper ions from copper ore using organic extractants |
| 12/21/2000 | DE19928029A1 Verfahren zum Lösen von Edelmetallen aus edelmetallhaltigen Scheidgütern Method for solving of precious metals from noble metal-containing Scheid goods |
| 12/20/2000 | EP1061145A1 Process of producing high purity platinum from a hexachloroplatinate solution |
| 12/20/2000 | EP1061143A1 Method for solubilizing noble metalls |
| 12/19/2000 | US6162346 Process for recovery of zinc from sphalerite containing ores or concentrates |
| 12/13/2000 | CN1059475C Method and device for on-line control of organic additive in electrodeposition of metal |
| 12/12/2000 | US6159356 Process for the production of high purity copper metal from primary or secondary sulphides |
| 12/07/2000 | WO2000073539A1 Electrowinning cell incorporating metal ion filtration apparatus |
| 11/28/2000 | US6153082 Copper cathode starting sheets |
| 11/28/2000 | US6153081 Method of recovering antimony and bismuth from copper electrolyte |
| 11/21/2000 | US6149797 Contacting electrochemical cell with aqueous solution, said electrochemical cell comprising a cathode assembly, a nonporous support, an anode spaced from said cathode assembly, applying negative potential to said cathode assembly |
| 10/24/2000 | CA2229661C Intense yet energy-efficient process for electrowinning of zinc in mobile particle beds |
| 10/19/2000 | WO2000061827A1 An electrochemical cell for use in the recovery of mercury from aqueous solutions |
| 10/19/2000 | WO2000061825A1 Hydrometallurgical processing of lead materials in the presence of fluorotitanate compounds |
| 10/19/2000 | CA2368868A1 Hydrometallurgical processing of lead materials in the presence of fluorotitanate compounds |
| 10/11/2000 | EP1043408A2 Processes and apparatus for recovery and removal of copper from fluids |
| 10/11/2000 | CN1269430A Method for electrochemically producing lithium |
| 10/11/2000 | CN1057344C Chloride assited hydrometallurgical extraction of metal |
| 10/05/2000 | DE19914221A1 Verbessertes Verfahren zur elektrochemischen Herstellung von Lithium An improved process for the electrochemical production of lithium |
| 10/04/2000 | EP1041177A1 Process for the electrochemical production of lithium |
| 10/03/2000 | US6126720 Method for smelting noble metal |
| 09/14/2000 | WO2000053825A1 Method for producing cathodic nickel |
| 09/08/2000 | WO2000018986A9 Processes and apparatus for recovery and removal tin, lead and/or copper from solutions |
| 09/06/2000 | EP0832302B1 Chloride assisted hydrometallurgical extraction of nickel and cobalt |
| 08/30/2000 | EP0815270B1 Atmospheric mineral leaching process |
| 08/30/2000 | CN2393890Y Electrolysis with for extracting copper from thin cyanide liquid |
| 08/30/2000 | CN1264757A Equipment and method for dissolving copper in step of producing raw liquid with electrolytic copper foil |
| 08/30/2000 | CN1055971C Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulfide minerals |
| 08/29/2000 | US6110349 Method for recovering metallic tin from electroplating sludge |
| 08/24/2000 | WO2000049187A1 Process for making copper wire including solvent extraction, electrodeposition and cold working |
| 08/15/2000 | US6103093 Anode for oxygen evolution in electrolytes containing manganese and fluorides |
| 08/09/2000 | CN2390895Y Gold electrolyte ionic membrane frame |
| 08/02/2000 | CN1261631A Producing alkali metal from alkali metal analgam by electrochemical method |
| 07/27/2000 | WO2000043576A1 Process for recovering copper from a high acid mixed metal solution |
| 07/27/2000 | WO2000043574A1 Process for the recovery of tin, tin alloys or lead alloys from printed circuit boards |