| Patents for C25C 1 - Electrolytic production, recovery or refining of metals by electrolysis of solutions (5,617) |
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| 07/27/2000 | CA2360994A1 Process for recovering copper from a high acid mixed metal solution |
| 07/20/2000 | WO2000042241A1 Electrowinning anodes which rapidly produce a protective oxide coating |
| 07/19/2000 | EP1020537A1 Separation and concentration method for recovering gallium and indium from solutions by jarosite precipitation |
| 07/19/2000 | EP0909336B1 Process for recovery of zinc from sphalerite containing ores or concentrates |
| 07/19/2000 | CN1260846A Cathode for electrolytic refining |
| 07/13/2000 | WO2000040512A1 Sludge-free treatment of copper cmp wastes |
| 07/13/2000 | WO2000018986A8 Processes and apparatus for recovery and removal tin, lead and/or copper from solutions |
| 07/11/2000 | US6086744 Production of electrolytic copper from dilute solutions contaminated by other metals |
| 07/11/2000 | US6086733 Electrochemical cell for metal recovery |
| 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 |
| 06/15/2000 | WO2000001863A3 Method for recovering precious metals |
| 06/14/2000 | EP1008304A1 Method and apparatus for removing toxic substances from waste marine products |
| 06/11/2000 | CA2285740A1 Method and apparatus for removing toxic substances from waste marine products |
| 06/06/2000 | US6071399 Provision of a second contact surface positioned above the liquid level and electrically isolated from the first contact surface for making contact with the removable electrode when positioned in the housing |
| 06/06/2000 | CA2155209C Process for making copper foil |
| 05/31/2000 | CN2380578Y Hydraulic anode clamp |
| 05/24/2000 | CN1254025A Antimony-removing and impurity-removing method for copper electrolytic solution |
| 05/16/2000 | CA2155207C Process for making copper metal powder, copper oxides and copper foil |
| 05/10/2000 | CN1052265C Chloride assisted hydrometallurgical extraction of copper |
| 05/09/2000 | CA2052933C Process and apparatus for electrowinning of heavy metals from waste baths |
| 05/02/2000 | CA2138777C Production of metals from minerals |
| 04/26/2000 | CN1051809C Method of chemically and electrolyticaly recovering and extracting gold |
| 04/25/2000 | US6054026 Electrolytic cell for removing silver from silver-containing aqueous liquids |
| 04/18/2000 | CA2176487C Process for making copper wire |
| 04/13/2000 | WO2000020661A1 Starting cathodes made of copper band for copper electrolysis and a method for the production thereof |
| 04/12/2000 | EP0992615A1 Startkathoden aus Kupferband für die Kupferelektrolyse und Verfahren zu deren Herstellung |
| 04/12/2000 | EP0991786A1 Separating metal ions absorbed on a resin and installation for recycling photographic effluents including an exchanger and an electrolysis vessel |
| 04/12/2000 | EP0991785A2 A method and a device for recovering metals comprising dissolving , concentrating and electrowinning means with rotatable cathode |
| 04/06/2000 | WO2000018986A1 Processes and apparatus for recovery and removal tin, lead and/or copper from solutions |
| 04/05/2000 | EP0990062A1 Anode for electrolytic refining |
| 03/29/2000 | CN1248801A Technology for cleaning and recovering lead from waste accumulator |
| 03/22/2000 | CN2370029Y Integrate pressure desorption electro-deposition device |
| 02/24/2000 | WO2000009782A1 Method for the removal of sulfur in the nickel leaching process |
| 02/24/2000 | DE19837681A1 Impurity removal process in a zinc electrowinning electrolyte circuit comprises adding water and a zinc source to precipitate the zinc content of the depleted electrolyte prior to further treatment |
| 02/23/2000 | EP0843741B1 Method for upgrading waste material comprising sheet metal with a zinc plating on at least one side thereof |
| 02/23/2000 | CN1049693C Method for extracting copper from ore |
| 02/03/2000 | WO2000005438A1 Electrochemical conversion of transition metal cations to anions at a higher oxidation state |
| 02/03/2000 | CA2338400A1 Electrochemical conversion of transition metal cations to anions at a higher oxidation state |
| 02/02/2000 | CN2361643Y Device for fluidized eletrolytic recovery of gold |
| 01/19/2000 | EP0972860A1 Electrolytic recovery of metal from solution |
| 01/19/2000 | EP0972858A1 Electrolytic recovery of metal from solution |
| 01/19/2000 | EP0972857A1 Electrolytic cell |
| 01/19/2000 | EP0972856A1 Electrolytic cell for recovering metal from solution |
| 01/19/2000 | CN2359299Y 2-pi period change gold electrolytic power |
| 01/13/2000 | WO2000001863A2 Method for recovering precious metals |
| 01/12/2000 | EP0970263A1 Electrolytic method for recovering and recycling silver from a nitric solution |
| 01/12/2000 | EP0786021B1 Process for making copper foil |
| 01/05/2000 | EP0832306B1 Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulphide ores |
| 01/05/2000 | DE19829274A1 Verfahren zur Rückgewinnung von Edelmetallen A process for the recovery of precious metals |
| 12/15/1999 | EP0963451A1 Ferric fluoborate/organic extractant hydrometallurgical process for recovering metals |
| 12/08/1999 | CN1237642A New cadmium-removing process for preparation of zinc salt and electrolytic zinc and its equipment |
| 12/07/1999 | US5997719 Electrochemical process for refining platinum group metals with ammonium chloride electrocyte |
| 12/07/1999 | US5997718 Recycling of CdTe photovoltaic waste |
| 11/30/1999 | US5993635 Processing a sulphide mineral composition which at least partly comprises an iron-containing mineral. |
| 11/25/1999 | WO1999060179A1 Recovery of nickel from copper refinery tankhouse electrolyte |
| 11/09/1999 | US5980725 Method for upgrading waste material comprising sheet metal with a zinc plating on at least one side thereof |
| 11/03/1999 | CN1233669A Method and equipment for high temp. and high voltage cyanogen-free electrodeposition with integral pressure desorption |
| 11/02/1999 | US5976218 Process for the recovery of nickel |
| 10/27/1999 | EP0951587A1 Mobius electrolysis |
| 10/27/1999 | EP0951573A1 Method for extracting non-ferrous metals such as zinc by electrolysis and by adding substances containing phosphor |
| 10/21/1999 | WO1999053108A1 Method for treating steel works dust by wet process |
| 10/20/1999 | EP0950129A1 Silver refining installation |
| 10/20/1999 | EP0871787B1 Electrochemical processing method for catalyst substrates containing noble metals for the recovery thereof |
| 10/06/1999 | EP0946767A1 Recovery of iron products from waste material streams |
| 10/05/1999 | US5961797 Copper cathode starting sheets |
| 09/30/1999 | WO1999049105A1 Fluoboric acid control in a ferric fluoborate hydrometallurgical process for recovering metals |
| 09/29/1999 | CN1229860A Process for electrolytically producing amalgam form metal salt |
| 09/29/1999 | CN1229859A Treatment process for dust |
| 09/28/1999 | US5958210 Improved zinc deposition by utilizing a counterelectrode having coating that is catalytic for oxygen generation and by raising zinc ion concentration in electrolyte |
| 09/23/1999 | DE19905672A1 Verfahren zur elektrolytischen Herstellung von Amalgam aus Metallsalz A process for the electrolytic preparation of amalgam from metal salt |
| 09/22/1999 | EP0943702A1 Electrolytic production of an amalgam from a metal salt |
| 09/15/1999 | EP0646185B1 Production of metals from minerals |
| 09/14/1999 | US5951844 Process and apparatus for desilvering a silver-containing solution |
| 09/14/1999 | US5951843 Method and apparatus for extracting lithium by applying voltage across lithium-ion conducting solid electrolyte |
| 09/14/1999 | US5951842 Recovering silver in photographic solutions |
| 09/10/1999 | WO1999045160A1 Method for electrochemical oxidation of vanadium in aqueous solutions and method to obtain vanadium pentoxide |
| 09/01/1999 | EP0939138A1 Process and apparatus for treating zinc containing waste by alkaline leaching |
| 08/18/1999 | EP0752013B1 Hydrometallurgical extraction process |
| 08/10/1999 | US5935409 Fluoboric acid control in a ferric fluoborate hydrometallurgical process for recovering metals |
| 08/04/1999 | EP0836523A4 Process for making shaped copper articles |
| 08/03/1999 | US5932086 Process for making manganese |
| 07/28/1999 | EP0909345A4 Copper cathode starting sheets |
| 07/21/1999 | EP0930380A1 Electrolytic cell with removable electrode and its operating method |
| 07/21/1999 | EP0930373A1 Recovery of nickel and/or cobalt from a hydroxide concentrate with an ammonium leach solution |
| 06/23/1999 | EP0924512A2 Determination of silver in a photographic solution |
| 06/23/1999 | EP0924307A1 Solvent extraction of cobalt and nickel values from a magnesium containing solution |
| 06/23/1999 | CN1220709A Alkoxylated dimercaptans as copper additives |
| 06/16/1999 | EP0922790A1 Aluminium alloy cathode plates |
| 06/02/1999 | CN2321787Y High-temp. high-pressure non-cyanogen desorption electrolyzer |
| 05/20/1999 | WO1999024646A1 Silver refining installation |
| 05/20/1999 | CA2277070A1 Silver refining installation |
| 05/19/1999 | EP0915727A1 Process for the recovery of nickel |
| 05/11/1999 | US5902474 Chloride assisted hydrometallurgical extraction of metal |
| 05/06/1999 | WO1999022037A1 Method for extracting non-ferrous metals such as zinc by electrolysis and by adding substances containing phosphor |
| 05/06/1999 | EP0913221A1 Conditioning of in basic media electrodeposited metal powder |
| 05/06/1999 | EP0912777A2 Alkoxylated dimercaptans as copper additives |
| 05/04/1999 | CA1340532C Electrically-conductive titanium suboxides |
| 04/29/1999 | DE19747328A1 Non-ferrous metal, especially zinc, electrowinning process |
| 04/27/1999 | US5897685 Recycling of CdTe photovoltaic waste |
| 04/21/1999 | EP0909345A1 Copper cathode starting sheets |