Patents for C25C 1 - Electrolytic production, recovery or refining of metals by electrolysis of solutions (5,617)
12/1995
12/13/1995EP0584188B1 Electrolytic desilvering process
11/1995
11/22/1995EP0683136A2 Silver removal
11/22/1995EP0682806A1 Process for the treatment of particulate material
11/21/1995US5468354 Electrolysis of aqueous solution of zinc, nickel, cadmium or cobalt chloro-ammino complex in cell with anode and cathode in intercommunicated compartments to form metal, ammonia, chlorine and nitrogen; electrolyte pH controlled at 6-8
11/21/1995US5468353 Mist suppressant for solvent extraction metal electrowinning
11/21/1995EP0695377A4 Process for making copper metal powder, copper oxides and copper foil
11/16/1995WO1995030783A1 Mist suppressant for solvent extraction metal electrowinning
11/16/1995WO1995030626A1 Recovery of chemical values from industrial wastes
11/16/1995CA2188658A1 Recovery of chemical values from industrial wastes
11/07/1995US5464507 Process for the electrolytic deposition of metals
11/07/1995US5464506 Electrolytic device and method having a porous and stirring electrode
11/07/1995CA2148320A1 Electrochemical deionisation
11/02/1995EP0527882B1 Method and device for porous-electrode electrolysis
10/1995
10/25/1995CN1110725A Compound alloy anode for electrolytic production of metal manganes and its preparation method
10/18/1995EP0627013B1 Process for separating disturbing elements from solutions of valuable metals
10/18/1995CN1110326A New process for extracting copper by leaching-electrode position
10/17/1995US5458746 Leaching
10/17/1995US5458745 Method for removal of technetium from radio-contaminated metal
10/12/1995EP0701636A4 Method and apparatus for the electrolytic production of copper wire
10/10/1995CA2017032C Hydrometallurgical silver refining
10/05/1995WO1995026418A1 Hydrometallurgical extraction process
10/04/1995EP0675213A1 Electrolytic copper foil for printed wiring boards and process for producing the same
09/1995
09/27/1995CN1109109A Process for the electrochemical dissolution of sulfur-containing and/or concentrated minerals by ion-exchange membranes and potential differences
09/26/1995US5453253 Reacting with concentrate of zinc sulfide in dilute sulfuric acid; suspending, flashing, separation, leaching, and electrolysis
09/26/1995US5453111 Method for separation of metals from waste stream
09/19/1995US5451298 Method and device for the electrolytic recovery of silver in two film processing machines
09/19/1995CA1337021C Process for the extraction and purification of gallium from bayer liquors
09/13/1995CN1029746C One step electrolysis method for extracting copper
09/08/1995WO1995023880A1 Treatement of electrolyte solutions
09/06/1995EP0479956B1 Silver recovery device
08/1995
08/23/1995EP0663021A4 Electrolytic oxidizer.
08/22/1995US5443708 Cathode for the electrolytic deposition of non-ferrous metals
08/15/1995US5441609 Process for continuous electrochemical lead refining
08/09/1995CN1106473A Membrane powersupplyless electrolysis process
08/09/1995CN1029487C Method and apparatus for separating and reclaiming artificial diamond and contact media metal from synthetic plate
08/08/1995US5439562 Electrochemical decontamination of radioactive metals by alkaline processing
08/02/1995CN1106078A Pre-treating technology and device for manufacturing metal foil
07/1995
07/26/1995CA2140990A1 Procedure for stripping electrolytic copper deposited on stainless steel, titanium or other metallic permanent cathodes
07/19/1995EP0663021A1 Electrolytic oxidizer
07/18/1995US5434035 Fixer additives used in combination with iron complex based bleaches to improve desilvering
07/05/1995EP0661593A2 Fixer additives used in combination with iron complex based bleaches to improve desilvering
06/1995
06/28/1995CN1104266A Technology for extracting gold by directly electrolysing noble liquid cyanide
06/28/1995CN1104265A Suspension electrolyte technology for copper mine
06/27/1995US5427877 Method and apparatus for controlling an automatic silver recovery system for a photographic processor
06/13/1995US5423957 Electrolytic process for dissolving platinum, platinum metal impurities and/or platinum metal alloys
06/08/1995WO1995015566A1 Process for the treatment of particulate material
05/1995
05/31/1995EP0655419A1 Process for treating photographic waste water
05/31/1995CN1028659C Purifying lead electrolytic solution technology
05/31/1995CN1028658C Purifying copper electrolytic solution technology
05/30/1995US5419882 Adsorption by manganese dioxide sludge
05/24/1995EP0654547A1 Electrochemical refining of metals
05/23/1995CA2136052A1 Process for the electrochemical dissolution of sulfur-containing and/or concentrated minerals by ion-exchange membranes and potential differences
05/17/1995CN1102673A Method of electrolysis extracting copper from material containing cupric sulfide
05/11/1995DE4338228A1 Cyclic process for reprocessing metal-containing residues
05/05/1995CA2134586A1 Purification of aqueous solutions
05/02/1995US5411645 Hydrogen assisted reduced oxide soldering system
05/02/1995US5411643 Integrated process of using chloric acid to separate zinc oxide and manganese oxide
05/02/1995US5411575 Treatment of ores for copper and gold with cyanide
05/02/1995CA1335435C Drum electrolysis
04/1995
04/26/1995CN2195552Y Electrolysis bath for processing metal manganese
04/25/1995US5409582 Passing aqueous solution containing ionic silver and copper through electrowinning cell at first potential to deplete silver, diluting and electrowinning at a second potential to deplete copper
04/05/1995EP0646185A1 Production of metals from minerals
04/05/1995CN1101083A A cathode for the electrolytic deposition of non-ferrous metals
03/1995
03/23/1995WO1995008009A1 Process for the recovery of a heavy metal
03/21/1995US5399249 Metal recovery device
03/16/1995WO1995007375A1 Cell for the recovery of metals from dilute solutions
03/16/1995CA2169482A1 Cell for the recovery of metals from dilute solutions
03/15/1995CN1100153A Method for removal of copper from electrolytic nickel anodic liquid
03/14/1995CA1334745C Continuous silver refining cell
03/01/1995EP0640424A1 Hydrogen assisted reduced oxide soldering system
02/1995
02/28/1995US5393389 Electrolytic process for obtaining high purity platinum from contaminated platinum
02/28/1995US5393388 From concentrated hydrochloric acid solutions of platinum alloys containing rhodium, iridium and/or palladium
02/20/1995CA2111124A1 Hydrogen assisted reduced oxide soldering system
02/15/1995EP0638667A1 Process for continuous electrochemical lead refining
02/15/1995EP0638664A1 Process and apparatus for regenerating solutions containing metal ions and sulfuric acid
02/14/1995US5389212 Method for recovering photographic and industrial waste
01/1995
01/18/1995EP0634503A1 A cathode for the electrolytic deposition of non-ferrous metals
01/17/1995CA1333960C Hydrometallurgical process for an overall recovery of the components of exhausted lead-acid batteries
01/12/1995DE4322740A1 Process for recovering tin metal from tin compounds RSn in the gaseous state
01/10/1995CA1333895C Process for electrowinning copper
01/03/1995US5378340 Apparatus for the electrolytic recovery of silver
01/03/1995US5378329 Process for the preparation of an alkaline-zinc slurry for use in batteries
01/03/1995US5378328 Electrowinning from hot sulfuric acid solution; corrosion resistant anode and cathode
12/1994
12/14/1994EP0521865B1 Device for the electrolytic regeneration of an etching agent containing metal, especially copper
12/13/1994US5372684 Process for the direct electrochemical refining of copper scrap
12/13/1994US5372683 Method and apparatus for the electrolytic extraction of metals from a solution containing metal ions
12/07/1994EP0627504A1 Method and apparatus for controlling electrolytic silver recovery for two film processing machines
12/07/1994EP0627503A2 Process for heavy metal electrowinning
12/07/1994EP0627502A2 Electroplating method and apparatus
12/06/1994US5370781 Electrode
11/1994
11/30/1994CN2183998Y Tower filling bed-type electric tank
11/29/1994US5368701 Process for forming Zintl phases and the products thereof
11/29/1994CA1333267C Hydrometallurgical process for recovering in pure metal form all the lead contained in the active mass of exhausted batteries
11/23/1994EP0625592A1 Method and device for the electrolytic recovery of silver in two film processing machines
11/22/1994US5366612 Process for making copper foil
11/09/1994CN1094762A One-step Zn smelting technique by suspension electrolysis of ZnS
11/08/1994US5362369 Fully automatic current control for metal depletion cells
11/02/1994CN1094460A Directly electrolytic extraction of electrolytic copper by copper sulfide ore
10/1994
10/27/1994WO1994024338A1 Process for making copper foil
10/27/1994WO1994024334A1 Process for making copper metal powder, copper oxides and copper foil
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