| Patents for C25C 1 - Electrolytic production, recovery or refining of metals by electrolysis of solutions (5,617) |
|---|
| 10/12/1994 | CN1093418A Prodn. of zinc by complex compound electrolysis |
| 09/27/1994 | CA2119405A1 Electrolytic cells |
| 09/14/1994 | CN2177021Y Copper electrolytic initial pole sheet interlocking preparing device |
| 09/06/1994 | US5344541 Silver recovery device |
| 09/06/1994 | US5344530 Metal anodes for electrolytic acid solutions containing fluorides or fluoroanionic complexes |
| 08/31/1994 | EP0612863A1 Reducing agent regeneration system and method |
| 08/31/1994 | CN1091479A Process for clarifying lead electrolytic solution |
| 08/24/1994 | EP0611839A1 Electrode |
| 08/24/1994 | CN1091157A Production of metal from minerals |
| 08/17/1994 | EP0610561A1 Method and apparatus for controlling an electrolytic silver recovery system for a photographic processor |
| 08/17/1994 | CN2174481Y Periodic automatic reversing gold-electrolyzer |
| 08/16/1994 | CA1331492C Common separation of contaminating elements from electrolyte solutions of valuable metals |
| 08/10/1994 | EP0609507A1 Electrolytic process for obtaining high purity platinum from impure platinum |
| 08/10/1994 | CN1090607A Recovering aluminium-nickel-cobalt magnetic steel refuse by magnetic electrode method |
| 08/04/1994 | WO1994017225A1 Silver bath waste treatment apparatus and method |
| 07/27/1994 | EP0607535A1 Electrolytic dissolution process for platinum, platinum metal impurities and/or platinum alloys |
| 07/19/1994 | USRE34664 Method and apparatus for electrolytic refining of copper and production of copper wires for electrical purposes |
| 07/06/1994 | CN1088991A Process for control of Mn and Zn contamination from hydrometallurgy of Mn and Zn by pressurization or depressurization |
| 06/22/1994 | EP0602426A1 Electrolytic process for obtaining high purity platinum from platinum alloys |
| 06/15/1994 | CN1025055C Method of electrolysis-shaping for preparing pure iron foil |
| 06/09/1994 | DE4240433A1 Electrolytic silver recovery from film and picture developing unit - determines silver vol in fixing bath from width and length and density of material to control electrolyte current |
| 06/08/1994 | CN1087688A Method and apparatus for the electrolytic production of copper wire |
| 06/08/1994 | CN1087687A Technology of purifying copper electrolyte |
| 06/01/1994 | DE4239852A1 Refining palladium-contg. crude silver by electrolysis - involves removing palladium from electrolyte with ion-exchange resin contg. chelating anchor gps. and recycling electrolyte. |
| 06/01/1994 | CN1087387A Method and apparatus for mineral recovery |
| 05/25/1994 | EP0598642A1 Production of compact zinc deposits from alkaline electrolyte |
| 05/25/1994 | EP0598144A1 Use of a pH sensitive reference electrode in electrolytic desilvering |
| 05/25/1994 | CN2166140Y Energy-saving electrolytic zinc negative plate |
| 05/11/1994 | WO1994010361A1 Method and apparatus for the electrolytic production of copper wire |
| 05/11/1994 | CA2147842A1 Method and apparatus for the electrolytic production of copper wire |
| 05/11/1994 | CA2082531A1 Production of compact zinc deposits from alkaline electrolyte |
| 05/10/1994 | US5310466 Electrolytic metal recovery system |
| 04/26/1994 | CA1328842C Process for recovery of metals from metal / plastic waste and the like |
| 04/19/1994 | US5304297 Electrolytic cells |
| 04/13/1994 | CN1024203C Purifying copper electrolyte by means of liquid-liquid extraction |
| 04/05/1994 | US5300199 Electrolysis |
| 03/30/1994 | CN1084585A Process for one-stage electrolytic extraction of copper |
| 03/24/1994 | DE4243698C1 Electrolytic dissolving of platinum@, platinum@ metal impurities and platinum@ metal alloys - using electrolytic cell with platinum metal salt or acid in the hydrochloric acid in the anode and cathode chambers of the cell |
| 03/23/1994 | CN1024085C Composite assembly of a motor plate with stuck sides and its manufacturing method also applications |
| 03/17/1994 | DE4243697C1 Electrolytic recovery of high purity platinum@ - using concentrated hydrochloric acid solns. contg. alloys in cell contg. cation exchange membrane |
| 03/16/1994 | CN1083871A Frame type fixed bed electrode electrolyzer and its industrial application |
| 03/16/1994 | CN1083868A A hydrometallurgical method of producing metallic lead from materials containing oxides, particularly from the active material of accumulators |
| 03/12/1994 | CA2078091A1 Hydrometallurgical method of producing metallic lead from materials containing oxides, particularly from the active material of accumulators |
| 03/09/1994 | CN2158521Y Heating equipment for electrolyzing gold |
| 03/09/1994 | CN1083418A Process for recovering useful matter from organosilicon chemical waste residue |
| 03/03/1994 | WO1994004720A1 Electrolytic oxidizer |
| 03/02/1994 | EP0585207A1 Method for the operation of electrolytic baths |
| 02/23/1994 | CN2157194Y Titanium plate cathode for silver electrolysis |
| 02/22/1994 | CA2104274A1 Method for the operation of electrolytic baths |
| 02/17/1994 | WO1994003652A1 Method of making metal of high purity from scrap of worked metal |
| 02/10/1994 | DE4243699C1 Refining impure platinum@ in electrolytic cell - using PTFE membrane as a cation exchange membrane |
| 02/03/1994 | WO1994002663A1 Method and apparatus for mineral recovery |
| 02/01/1994 | US5282934 Circulating through specified configuration of anodic and cathodic plates |
| 01/12/1994 | CN1080664A Process for producing electrolytic zinc copper by recoverying waste copper slag |
| 01/11/1994 | US5277775 System for treatment of photographic wastewater effluent |
| 01/06/1994 | WO1994000608A1 Electrokinetic leaching |
| 01/06/1994 | WO1994000606A1 Production of metals from minerals |
| 12/29/1993 | EP0575699A2 Process and apparatus for regenerating metal ions and sulfuric acid containing aqueous solutions and use thereof |
| 12/22/1993 | EP0574463A1 Process for recovery of metal |
| 12/15/1993 | EP0573452A1 Process for the recovery of metallic lead from battery paste |
| 12/15/1993 | EP0571467A4 Mineral recovery apparatus |
| 12/14/1993 | US5269897 Installation for removing the zinc deposited by electrolysis on aluminium plates |
| 12/11/1993 | CA2097868A1 Method and apparatus for regenerating an aqueous solution containing metal ions and sulphuric acid, and the use of the method |
| 12/07/1993 | CA1324977C Process of treating residues from the hydrometallurgical production of zinc |
| 12/01/1993 | EP0571467A1 Mineral recovery apparatus |
| 11/30/1993 | US5266177 Process for preparing reaction layer of gas permeable electrode |
| 11/16/1993 | US5262020 Recovering lead from batteries, redox couple to solubilize lead dioxide |
| 11/16/1993 | CA1324338C Catalytic deposition of metals in solid matrices |
| 11/11/1993 | WO1993022478A1 Electrolytic method of obtaining gallium metal |
| 11/04/1993 | DE4227179C1 Platinum@ electrolysis recovery - has cation exchange membrane separating anode and cathode zones to give metal powder without producing chlorine@ gas |
| 10/20/1993 | CN1077497A Technology for wet-process cupper smelting |
| 10/19/1993 | US5254225 Recovery of metallic compounds from geothermal brine |
| 10/14/1993 | WO1993020262A1 Electrochemical system for recovery of metals from their compounds |
| 10/12/1993 | CA1322855C Process for refining gold and apparatus employed therefor |
| 10/05/1993 | US5250166 Method of recovering palladium by electrolysis and apparatus therefor |
| 09/28/1993 | US5248398 Electrowinning |
| 09/07/1993 | US5242571 Method and apparatus for the electrolytic production of copper wire |
| 09/07/1993 | CA1321972C Fluidized bed electrolysis cell comprising particulate cathode |
| 09/02/1993 | WO1993017134A1 Process for separating disturbing elements from solutions of valuable metals |
| 08/26/1993 | DE4204994A1 Verfahren zur abtrennung von stoerelementen aus wertmetall-loesungen A method for segregation of interfering elements from valuable metals-loesungen |
| 08/24/1993 | US5238543 Recovery of silver from photographic film and photographic development waste solution |
| 08/03/1993 | US5232559 Ammoniation of solution containing molybdenum compound in organic solvent for precipitation of molybdenum and reduction of electrical resistance, then electrolysis to collect more solid molybdenum at cathode |
| 07/22/1993 | WO1993014246A1 Method for producing an intermetallic lithium compound |
| 07/20/1993 | US5229003 Recovery of base materials from geothermal brines |
| 07/20/1993 | US5228958 Regenerating slurries for use in zinc-air batteries |
| 07/14/1993 | EP0551155A1 Process for recovering zinc and lead from flue dusts from electrical steel works and for recycling said purified metals to the furnace, and installation for implementing said process |
| 07/13/1993 | US5227032 Method for producing oxygen from lunar materials |
| 06/30/1993 | EP0548538A1 Transition metal decontamination process |
| 06/17/1993 | DE4140640A1 Copper@ recovery from discarded circuit boards - uses mixt. of organic acid and halogenated hydrocarbon(s) for sepn. and recovery |
| 06/16/1993 | CN1021236C Method for acid balance in simultaneous electrolysis of zn and mno2 |
| 06/08/1993 | US5217585 Transition metal decontamination process |
| 06/02/1993 | CN1072728A Electrode potential electrolytic method |
| 05/18/1993 | US5211818 Using ammoniacal ammonium sulfate solution |
| 05/12/1993 | CN1071975A Process and special electrode for producing electrolytic metal mn from manganese rich slag and mncl2-nh4cl system |
| 05/11/1993 | CA1317560C Method for the precipitation of mercury by electrolysis |
| 05/05/1993 | CN1071714A Electrolysis refinery process of pure zinc from crude zinc |
| 05/04/1993 | US5207996 Acid leaching of copper ore heap with fluoroaliphatic surfactant |
| 04/20/1993 | US5203979 With holding means in electrolysis tank for engaging cathode and clamping bolt secured in contact bushing to prevent displacement |
| 04/14/1993 | EP0536914A1 Acid leaching of copper ore heap with fluoroaliphatic surfactant |
| 04/07/1993 | EP0535837A1 Decontamination of radioactive metals |