| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 02/13/1996 | US5491078 Removing trace elements and minerals froom soils, rocks |
| 02/13/1996 | US5490976 Continuous ore reaction process by fluidizing |
| 02/11/1996 | CA2129892A1 Precious metal recovery process from ores |
| 02/07/1996 | EP0695809A1 Processes to recover and reconcentrate gold from its ores |
| 02/07/1996 | EP0695377A1 Process for making copper metal powder, copper oxides and copper foil |
| 02/07/1996 | CN1030930C Method of extracting gold and silver using lime sulfur mixture |
| 02/06/1996 | US5489326 Gold recovery using controlled oxygen distribution pressure oxidation |
| 02/06/1996 | CA1338030C Oxidative dissolution of gallium arsenide and separation of gallium from arsenic |
| 02/01/1996 | WO1996002689A1 Process for electrochemically dissolving a metal such as zinc or tin |
| 02/01/1996 | WO1996002679A1 Method for the reclamation of metallic compounds |
| 02/01/1996 | CA2195460A1 Process for electrochemically dissolving a metal such as zinc or tin |
| 01/30/1996 | US5487842 Low viscosity, rapid phase separation, hydrolytic stability |
| 01/30/1996 | US5487819 Production of metals from minerals |
| 01/24/1996 | CN1115338A Method for removing copper from Ni or Co acid solution |
| 01/24/1996 | CN1115337A Method for selectively extraction separating Ge |
| 01/17/1996 | EP0692035A1 Recovery of cerium from fluoride-containing ores |
| 01/17/1996 | CN1114949A Preparation method of high-purity micro-fine rutile-type titanium dioxide |
| 01/17/1996 | CN1030720C Extraction and recovery of gold |
| 01/16/1996 | US5484579 One step, continuous process for conversion of sulfides to recoverable sulfates |
| 01/16/1996 | US5484470 As catalyst available for coordination to surface of undissolved gold |
| 01/11/1996 | WO1996000801A1 Precious metal extraction process |
| 01/11/1996 | CA2194137A1 Precious metal extraction process |
| 01/09/1996 | US5482535 Process for the recovery of silver by floatation from the residue from the wet extraction of zinc |
| 01/09/1996 | US5482534 Precipitation of iron and arsenic as ferric arsenate and extraction |
| 01/09/1996 | CA2047711C Extraction and recovery of gold |
| 01/04/1996 | WO1996000309A1 Use of hydrocarbon-soluble aminomethylene phosphonic acid derivatives in the solvent extraction of iron ions from aqueous solutions |
| 01/04/1996 | WO1996000308A2 Method and apparatus for extracting precious metals |
| 01/04/1996 | DE4421932A1 Verfahren von kohlenwasserstofflöslichen Aminomethylenphosphonsäure-Derivaten zur solventextraktiven Abtrennung von Eisenionen aus wäßrigen Lösungen A method of hydrocarbon-soluble aminomethylenephosphonic acid derivatives for the solvent extraction of iron ions from aqueous solutions |
| 01/04/1996 | CA2193726A1 Use of hydrocarbon-soluble aminomethylene phosphonic acid derivatives in the solvent extraction of iron ions from aqueous solutions |
| 01/03/1996 | CN1114365A Process for extracting high-valence cerium from ore leachate directly |
| 01/03/1996 | CN1114364A Method for producing titanium-enriched material and equipment thereof |
| 01/03/1996 | CN1114363A Process for extracting rare-earth from electrolytic slag of rare-earth chloride |
| 01/03/1996 | CN1114362A Process for recovering platinum from waste catalyst |
| 01/03/1996 | CN1114361A Method for recovering Ag, Au, Sb, Cu and Pb from Pb anode slime |
| 01/02/1996 | CA1337847C Method for purifying tio _ore by alternating acid and base treatments |
| 12/27/1995 | CN1113960A Treating tech. for Baotou rare-earth mine sulfuric acid baking extract |
| 12/26/1995 | US5478539 Solvent extraction by complexing the metal oxyanion with a benzimidazole |
| 12/26/1995 | US5478474 Monomeric and polymeric phosphinimines to sequester radioactive technetium oxide (TcO4-) ions |
| 12/26/1995 | US5478376 Converting a ruthenium, rhodium, or iridium chloro complex to a nitrosyl complex, precipitating rhodium or iridium by manipulation of their oxidation states |
| 12/20/1995 | CN1113521A Method for removing copper from nickel anolyte by solvent extraction |
| 12/20/1995 | CN1113520A Wet metallizing process for recovering copper and zinc from materials containing the both |
| 12/19/1995 | US5476591 Liquid treatment system and method for operating the same |
| 12/19/1995 | CA2026967C Method of removing cobalt from chloride solution |
| 12/19/1995 | CA1337741C Process for recovery of gold using sulphur-containing acidic compounds |
| 12/19/1995 | CA1337738C Solvent extraction process |
| 12/14/1995 | WO1995033692A1 Apparatus and method for recovery of silver |
| 12/14/1995 | WO1995033542A1 Fluid extraction |
| 12/14/1995 | WO1995033541A1 Fluid extraction of metals and/or metalloids |
| 12/13/1995 | EP0686205A1 Recovery of zinc values from a solution containing hydrocyanic acid |
| 12/12/1995 | US5474593 Agent for treating metal ions in an aqueous solution, process for producing the metal ion-treating agent and method for treating metal ions in an aqueous solution |
| 12/06/1995 | EP0685001A1 Process for the treatment of electric arc furnace dust. |
| 12/05/1995 | US5472675 Polyvinyl alcohol agglomeration agents for mineral bearings ores |
| 12/05/1995 | US5472618 Acidifying the etching liquid, reducing with iron powder to precipitate copper |
| 11/29/1995 | CN1030401C Gold-extracting process with liquid film of soaking while grinding and its equipment |
| 11/28/1995 | US5470553 Method for separating cobalt, nickel, and aluminum ions in sulfuric acid aqueous solutions and the extractant compositions used therein |
| 11/28/1995 | US5470552 Nickel extraction process |
| 11/28/1995 | CA2039647C Process for the separation of yttrium |
| 11/22/1995 | EP0683136A2 Silver removal |
| 11/22/1995 | EP0682806A1 Process for the treatment of particulate material |
| 11/21/1995 | US5468281 Process for the separation of cobalt from nickel |
| 11/21/1995 | EP0695377A4 Process for making copper metal powder, copper oxides and copper foil |
| 11/21/1995 | CA1337577C Dioxime kinetic enhancer for solvent extraction of gallium from basic aqueous solutions thereof |
| 11/16/1995 | WO1995030626A1 Recovery of chemical values from industrial wastes |
| 11/16/1995 | WO1995030471A1 Liquid treatment method and system |
| 11/16/1995 | CA2188658A1 Recovery of chemical values from industrial wastes |
| 11/09/1995 | WO1995029753A1 Reactor trays for a vertical staged polycondensation reactor |
| 11/08/1995 | CN1111288A Recovery of gold from tailing pulp |
| 11/07/1995 | US5464596 Method for treating waste streams containing zinc |
| 11/07/1995 | US5464590 For condensation polymerization |
| 11/07/1995 | CA1337503C Metal extraction process |
| 11/02/1995 | WO1995028999A1 Solvent extraction of metal containing species |
| 11/01/1995 | CN1110992A Method for extracting metals from large solution flows and apparatus for realizing the same |
| 11/01/1995 | CN1110991A Prepn. of pure tungstate by extracting tungsten from alkali leaching liquor of tungten ore |
| 10/31/1995 | US5462720 Biodgradation of metal ores by microorganisms, bacterial oxidation of ferrous ions to ferric ions for reuse |
| 10/26/1995 | WO1995028503A1 Treatment of leach liquors for upgrading a titaniferous material |
| 10/26/1995 | WO1995028502A1 Leaching of a titaniferous material |
| 10/26/1995 | CA2188398A1 Leaching in the presence of abrasive |
| 10/26/1995 | CA2187893A1 Treatment of leach liquors for upgrading a titaniferous material |
| 10/26/1995 | CA2187892A1 Leaching of a titaniferous material |
| 10/25/1995 | CN1110720A Method of extracting gold with bromate and bromine adduct |
| 10/24/1995 | US5460724 Simplified, precise dosing and mixing of liquid regeneration agent |
| 10/21/1995 | CA2147307A1 Noble metal recovery |
| 10/18/1995 | EP0677118A1 Hydrometallurgical recovery of metals from complex ores. |
| 10/18/1995 | EP0627013B1 Process for separating disturbing elements from solutions of valuable metals |
| 10/18/1995 | CN1110329A Method for recovering extractant from interfacial flocculate produced during the extraction of copper by LIX |
| 10/18/1995 | CN1110328A Ionic type leaching impurity-removing precipitating process of rare-earth ore |
| 10/18/1995 | CN1110327A Extracting fine stibium from lead-stibium headings by vulcanization alkali method |
| 10/18/1995 | CN1110326A New process for extracting copper by leaching-electrode position |
| 10/18/1995 | CN1030088C Method for extracting gold from cyanated extract or cyanated ore pulp of vein gold deposit or gold concentrate |
| 10/17/1995 | US5458746 Leaching |
| 10/17/1995 | US5458024 Apparatus and method for recovery of silver |
| 10/12/1995 | WO1995027086A1 Method for treatment of residues from organochlorosilane and/or chlorosilansynthesis |
| 10/12/1995 | WO1995027085A1 Solvent extraction process |
| 10/12/1995 | CA2181722A1 Solvent extraction process |
| 10/11/1995 | CN1109913A A process for the extraction and separation of nickel and/or cobalt |
| 10/11/1995 | CN1109912A Cation exchange fibre chromatographic process for preparing single medium or heavy rare-earth oxide with more than 5N |
| 10/10/1995 | CA1337243C Process for the recovery of metal values from an aqueous solution using imidazoles of a selected formula |
| 10/05/1995 | WO1995026418A1 Hydrometallurgical extraction process |
| 10/04/1995 | EP0674777A1 Composition for removing adhesives from polymeric film and process for using same |
| 10/03/1995 | US5454948 Removing heavy metals, reducing volatile suspended solids, and destroying indicator bacteria; sulfur oxidizing thiobacilli present in sludge; sewage treatment |