| Patents for C22B 15 - Obtaining copper (5,364) |
|---|
| 02/21/2002 | WO2002014765A1 Bottom structure for a smelting furnace |
| 02/21/2002 | CA2418325A1 Bottom structure for a smelting furnace |
| 02/16/2002 | CA2340271A1 Shredder dust feeding facilities and reverberatory furnace provided with this feeding facilities |
| 02/12/2002 | CA2232935C A method for the treatment of bismuth-containing sulphide ores or concentrates of such ores |
| 02/06/2002 | CN1334155A Adhesion-resistant oxygen-free copper roughly drawn wire |
| 01/31/2002 | WO2002008476A1 Method and device for reducing the oxygen content of a copper melt |
| 01/31/2002 | WO2002008475A2 Method for recovery of copper from sulfidic ore materials using super-fine grinding and medium temperature pressure leaching |
| 01/31/2002 | WO2002008474A2 Processing elemental sulfur-bearing materials using high temperature pressure leaching for sulfuric acid production and metal recovery |
| 01/31/2002 | WO2002008125A2 Method for recovering copper from sulfide ore materials using high temperature pressure leaching, solvent extraction and electrowinning |
| 01/31/2002 | US20020012621 Process for the recovery of nickel and / or cobalt from a concentrate |
| 01/31/2002 | US20020012620 Bacterial leaching of copper and zinc without iron leaching |
| 01/31/2002 | DE10035593A1 Reducing oxygen content of copper melt comprises melting copper initially in shaft furnace, and subsequently feeding it to treatment furnace via transporting channel |
| 01/31/2002 | DE10033657A1 Device for charging gas-fired copper shaft melting furnace comprises loading basket which is conveyed from lower charging station into lower delivery station |
| 01/29/2002 | US6342189 Method for total precipitation of valuable metals from an acid leaching solution |
| 01/24/2002 | CA2506780A1 Recovery of cadmium from zinc-containing acid soluble ore using precipitation method |
| 01/23/2002 | EP1173300A1 Casting of high purity oxygen free copper |
| 01/17/2002 | DE10016075C1 Method of removing impurities in ion, involves separating iron and copper phase and copper in iron phase is removed by difference in specific gravity |
| 01/10/2002 | US20020004023 Copper sulfide ore is pressure oxidized in presence of halide and sulfate in acid solution producing copper sulfate which is then solvent extracted |
| 01/09/2002 | EP1170389A2 Improved beta-diketones for the extraction of copper from aqueous ammoniacal solutions |
| 01/09/2002 | EP1012351B1 Chloride assisted hydrometallurgical extraction of copper from sulphide ore materials |
| 01/08/2002 | CA2221940C Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulphide ores |
| 01/03/2002 | WO2002001131A1 Apparatus for removing dust accretions from a smelting furnace |
| 01/03/2002 | WO2001036693B1 Recovery of metals from ore by bioleaching with sulfur addition |
| 01/03/2002 | US20020001552 Treatment of roasted metal sulphide ores and ferrites by leaching with peroxysulphuric acid |
| 01/03/2002 | CA2412590A1 Apparatus for removing dust accretions from a smelting furnace |
| 01/02/2002 | EP1165861A1 Copper recovery process |
| 12/27/2001 | US20010055553 Method for separating copper from iron |
| 12/19/2001 | CN2466589Y 连续精炼炉 Continuous refining furnace |
| 12/13/2001 | WO2001094650A2 Process for the recovery of natural nanoclusters of metals and other elements and the nanoclusters isolated thereby |
| 12/13/2001 | US20010051103 Preparation of highly pure copper oxide from waste etchant |
| 12/13/2001 | US20010049982 Using ferrous material |
| 12/06/2001 | WO2001091873A2 Polysulfonamide matrices |
| 12/05/2001 | EP1159461A1 Recovery of nickel and cobalt from ore |
| 11/29/2001 | WO2001089670A1 Method for metal recovery from aqueous solutions |
| 11/29/2001 | WO2001089654A2 Acid stable membranes for nanofiltration |
| 11/29/2001 | WO2001038590A3 Solvent extraction process for the recovery of valuable metals from acidic leachates |
| 11/28/2001 | EP1157139A1 Treatment of metal sulphide concentrates by roasting and arc furnace smelt reduction |
| 11/28/2001 | EP0783594B1 Apparatus and process for producing blister copper |
| 11/27/2001 | US6322675 Copper removal system for absorption cooling unit |
| 11/22/2001 | WO2001056684A9 A method for treatment of flue gas cleaning products |
| 11/21/2001 | EP1155155A1 Sulphidisation of sulphide ores for hydrometallurgical extraction of copper and other metals |
| 11/20/2001 | US6319389 Recovery of copper values from copper ores |
| 11/15/2001 | WO2001086027A1 Process for extracting copper or iron |
| 11/15/2001 | WO2001036693A3 Recovery of metals from ore by bioleaching with sulfur addition |
| 11/14/2001 | EP0815269B1 Improved hydrometallurgical processing of impurity streams generated during the pyrometallurgy of copper |
| 11/13/2001 | US6315812 Subjecting host material to an oxidative pressure sulfuric acid leach process in the presence of a chloride salt, and at 210-230 degrees c.; solution has an acid strength of at least 1 g/l, to form a precious metal-bearing chloride complex |
| 11/07/2001 | CN1074465C Copper recovery |
| 10/30/2001 | US6309531 Process for extracting copper or iron |
| 10/18/2001 | US20010029811 Use of mixture of C9 alkylsalicylaldoxime and ketoxime as extractant in water-immiscible organic solvent solution in metal extraction circuit to enhance transfer of iron values to dilute acid wash solution |
| 10/18/2001 | US20010029659 Method for manufacturing low-oxygen copper |
| 10/17/2001 | EP1145779A2 Adhesion-resistant oxygen-free copper wire rod |
| 10/11/2001 | US20010028135 Apparatus for manufacturing low-oxygen copper |
| 10/11/2001 | CA2342018A1 Adhesion-resistant oxygen-free copper roughly drawn wire |
| 10/10/2001 | EP1141424A1 Composition of oxime and hydroxy-ester for the solvent extraction of metals |
| 10/10/2001 | CN1316534A Equipment for producing copper suboxide |
| 10/10/2001 | CN1316307A Method for producing copper suboxide |
| 09/25/2001 | US6294362 Rapid ferrous sulfate biooxidation |
| 09/25/2001 | US6293993 Forming mixture of waste with finely divided solid reducing agent and binder; compacting as agglomerates; adding to reactor containing bath of liquid copper or brass metal in which zinc and copper oxides are reduced; casting new brass |
| 09/20/2001 | WO2001068927A1 Continuous nickel matte converter for production of low iron containing nickel-rich matte with improved cobalt recovery |
| 09/19/2001 | EP0771363B1 Copper converting |
| 09/19/2001 | EP0670911B1 Process to convert non-ferrous metal such as copper or nickel by oxygen enrichment |
| 09/11/2001 | US6287364 Method for producing copper alloy ingot |
| 09/05/2001 | EP1129225A1 Sulfatisation process for metal extraction from sulfide ores |
| 09/04/2001 | US6284530 Stacked bioreactor cells comprising a perforated inner cell surrounded by an outer cell wall loaded with packing material coated with substrates such as: acidophilic microbe support substrate or inoculum-supporting substrate |
| 09/04/2001 | US6284044 Film forming method and film forming apparatus |
| 08/30/2001 | WO2001062993A1 Process and apparatus for recovery of cyanide and metals |
| 08/30/2001 | CA2400806A1 Process and apparatus for recovery of cyanide and metals |
| 08/29/2001 | EP1127947A2 Method for manufacturing low-oxygen copper wire rod |
| 08/29/2001 | EP1127946A2 Installation for producing continuously cast low-oxygen copper ingots |
| 08/28/2001 | US6280501 Base metal recovery |
| 08/24/2001 | CA2337670A1 Apparatus for manufacturing low-oxygen copper |
| 08/23/2001 | WO2001061059A1 A continuously operating method for producing refined metal |
| 08/23/2001 | WO2001061058A1 Process for recovery of metals from metal-containing ores |
| 08/23/2001 | DE10007441A1 Poling copper in the molten state comprises feeding a gas mixture of hydrogen, nitrogen and carbon monoxide as gaseous deoxidizing agent into the melt |
| 08/23/2001 | CA2400673A1 Process for recovery of metals from metal-containing ores |
| 08/22/2001 | EP0795046B1 Process for making copper metal powder, copper oxides and copper foil |
| 08/21/2001 | US6277341 Process for the rapid leaching of chalcopyrite in the absence of catalysts |
| 08/21/2001 | US6277300 Composition and use of composition for the extraction of metal values |
| 08/21/2001 | US6277168 Method for direct metal making by microwave energy |
| 08/09/2001 | WO2001056684A1 A method for treatment of flue gas cleaning products |
| 08/07/2001 | US6270554 Continuous nickel matte converter for production of low iron containing nickel-rich matte with improved cobalt recovery |
| 07/31/2001 | US6267900 For conducting the separated solutions out of the space where the separation takes place. |
| 07/24/2001 | US6264903 Leaching; zinc displacement |
| 07/18/2001 | EP1115891A1 Process for extracting and recovering copper |
| 07/18/2001 | EP0975816B1 Method for recycling brass foundry waste |
| 07/17/2001 | US6261341 Copper leach process aids |
| 07/17/2001 | US6261340 Method for transforming slag derived from non-iron metallurgy |
| 07/12/2001 | WO2001049890A1 Method for the production of blister copper in suspension reactor |
| 07/12/2001 | WO2001049389A1 Method and apparatus for metal removal by ion exchange |
| 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 |
| 06/28/2001 | US20010005496 Adding a first fraction of a zinc oxide (ZnO)/ammonium chloride (NH4Cl) solution to given amount of water to form an intermediate solution and ZnO precipitate, and the second fraction to the intermediate solution; from industrial waste |
| 06/27/2001 | EP0695377B1 Process for making copper metal powder, copper oxides and copper foil |
| 06/21/2001 | WO2001044524A1 Sulphidisation of sulphide ores for hydrometallurgical extraction of copper and other metals |
| 06/21/2001 | WO2001044521A1 A process for the recovery of copper from aqueous solutions containing iodinated organic compounds |
| 06/21/2001 | DE19960132A1 Verfahren zur Gewinnung von Kupfer und anderen Metallen A process for recovering copper and other metals |
| 06/21/2001 | CA2389504A1 Sulphidisation of sulphide ores for hydrometallurgical extraction of copper and other metals |
| 06/13/2001 | EP1105234A1 Method and device for the continuous degassing of molten metals |
| 06/13/2001 | CN1067113C Pollution-free fire smelting method for Cu-Ni sulfide mine |
| 06/12/2001 | US6245125 Biologically oxidation of the concentrate ; solid/liquid separation; solvent extraction to produce a raffinate; stripping the solvent extraction reagent; electrowinning copper; recovering cobalt; recovering nickel |