| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 12/07/2005 | CN1230565C Method for recovering economic metal bacteria from slag |
| 12/07/2005 | CN1230564C A method for removal of calcium from zinc frocess sulfate solution |
| 12/06/2005 | US6972414 method and apparatus for isolating and purifying a 213Bi radioactive isotope from an 225Ac source without generating excessive waste |
| 12/06/2005 | CA2322682C Extraction of valuable metal by acid cyanide leach |
| 12/01/2005 | WO2005113845A1 Recovery of nickel |
| 12/01/2005 | US20050265910 Hydrometallurgical process of nickel oxide ore |
| 12/01/2005 | CA2568144A1 Recovery of nickel |
| 11/30/2005 | CN1702179A Method for extracting titanium from tantalum and niobium raffinate |
| 11/30/2005 | CN1229814C Method for separating uranium from plutonium in Parex procedure |
| 11/30/2005 | CN1229508C Mineral collector compositions of fatty hydroxamic acid in admixture with oil and process of making same |
| 11/29/2005 | US6969499 Bacterially assisted heap leach |
| 11/29/2005 | US6969494 For removal of contaminants such as mercury from a gas stream |
| 11/29/2005 | CA2281760C Treatment of a solution containing iron salts |
| 11/24/2005 | US20050260106 Ultrasonic reactor and process for ultrasonic treatment of materials |
| 11/24/2005 | US20050258107 exposing solution to ionophore; promoting the formation of complexes by exposing to a first light source, primarily ultraviolet light; separating some complexes from the solutions;promoting dissociation by exposing the complexes to full-spectrum light; and isolating metal using electrodeposition |
| 11/24/2005 | US20050258103 Methods for removing heavy metals from water using chemical precipitation and field separation methods |
| 11/23/2005 | EP1597403A1 Method for recovery of zinc by countercurrent leaching |
| 11/23/2005 | EP1597304A2 Phosphorous dendrimers, preparation method thereof and use of same for the extraction of actinides and lanthanides |
| 11/23/2005 | EP1546418A4 Recovering nickel |
| 11/23/2005 | CN1699350A Processes and intermediates for preparing anti-cancer compounds |
| 11/23/2005 | CN1228462C Catalytic oxidation method for preparing sodium pyroantimonate from antimony ore |
| 11/22/2005 | CA2437549C Production of zinc oxide from complex sulfide concentrates using chloride processing |
| 11/17/2005 | WO2005108630A1 Interlaced series parallel configuration for metal solvent extraction plants |
| 11/17/2005 | WO2005108303A1 Method for the elimination of uranium(vi) species in the form of uranyl complexes from waters |
| 11/17/2005 | US20050255035 Purification method for producing high purity niobium compound and/or tantalum compound |
| 11/17/2005 | US20050255017 Method for separating platinum group element |
| 11/16/2005 | EP1421162A4 Compositions for removing metal ions from aqueous process solutions and methods of use thereof |
| 11/16/2005 | CN1697887A Treatment of base metal concentrate |
| 11/16/2005 | CN1696319A Method for soaking valuable metal from polymetallic nodule in ocean |
| 11/16/2005 | CN1227393C Process for preparing high-purity silver by electrolyzing extracted silver-contained organic phase |
| 11/16/2005 | CN1227379C Technique for soaking copper pyrites |
| 11/15/2005 | CA2316878C Hydrogen-free regeneration of dithiophosphorus metal extractants |
| 11/10/2005 | WO2005106053A1 Iron oxide precipitation from acidic iron salt solutions |
| 11/10/2005 | WO2005106052A1 Method for recovering gold |
| 11/10/2005 | WO2005106051A1 Method for the recovery of gold in connection with the production of copper |
| 11/10/2005 | US20050249652 Process to recover vanadium contained in acid solutions |
| 11/10/2005 | US20050247909 Process for reducing the passive layer from the surface of a metal |
| 11/10/2005 | CA2564338A1 Method for recovering gold |
| 11/09/2005 | CN1693493A Recovery method of valuable element in neodymium iron boron waste material |
| 11/09/2005 | CN1693492A Method of recovering gallium and arsenic from gallium arsenate industry waste material |
| 11/09/2005 | CN1226456C Hydrogen peroxide soaking process for separating waste zinc containing nickel alloy sheet |
| 11/09/2005 | CN1226429C Process of recovering lithium and manganese from their oxide |
| 11/03/2005 | WO2005103308A1 Method for extracting copper with solvent |
| 11/03/2005 | US20050241439 Metallurgical dust reclamation process |
| 11/02/2005 | EP1315693B1 Recovery of metals from olefin hydroformylation reactions |
| 11/02/2005 | CN1692169A Treatment method for manganese contained material by hydrometallurgy process |
| 11/02/2005 | CN1691976A Process for reducing chromium nonvolatile residue resulting from air oxidation of cyclohexane |
| 10/27/2005 | WO2005100622A1 Process for removal of the catalytic coating material from spent, defective or unused metal support catalytic converters |
| 10/27/2005 | WO2005100621A1 Method for recovery of palladium |
| 10/27/2005 | WO2005099782A1 Composition comprising intercalated metal-ion sequestrants |
| 10/27/2005 | WO2005047551A8 Method for removing thallium from a zinc-containing solution |
| 10/27/2005 | CA2563075A1 Process for removal of the catalytic coating material from spent, defective or unused metal support catalytic converters |
| 10/26/2005 | EP1587964A1 Process for nickel and cobalt extraction from laterite ores |
| 10/26/2005 | EP1504129B1 Separation of platinum group metals |
| 10/26/2005 | CN1688729A Introduction of microorganisms in bio-assisted heap leachingoperations0 |
| 10/26/2005 | CN1688728A Method for the recovery of metals using chloride leaching and extraction |
| 10/26/2005 | CN1688727A Heap leach process |
| 10/26/2005 | CN1687468A Method for extracting nickel matte |
| 10/26/2005 | CN1224723C Processing method for industrial waste material |
| 10/25/2005 | US6958257 Tantalum sputtering target and method of manufacture |
| 10/25/2005 | CA2265391C Method for leaching nickel from nickel matte |
| 10/25/2005 | CA2251626C Method for recovering sodium from alkaline industrial waste |
| 10/20/2005 | WO2005098092A2 Precious metal recovery |
| 10/20/2005 | WO2005098062A1 Waste-free hydrometallurgical extraction of magnesium and other metals from rock formations of varying olivine content |
| 10/20/2005 | WO2005098060A1 Method for recovering nickel or cobalt |
| 10/20/2005 | WO2005097670A1 Compositions and methods for generating hydrogen from water |
| 10/20/2005 | WO2004063227A3 Solvent extraction landfill system and method |
| 10/20/2005 | US20050232837 Compositions and methods for generating hydrogen from water |
| 10/20/2005 | US20050232835 Anti-oxidation method for sulfide minerals in sulfide ore |
| 10/20/2005 | CA2563435A1 Precious metal recovery |
| 10/19/2005 | EP1200391B1 Calixarene acetamido derivatives, preparation and use thereof for extracting strontium |
| 10/19/2005 | CN1684906A Low viscosity copper solvent extraction reagent formulations |
| 10/19/2005 | CN1683572A Poisonless extracting and refining method for noble metals |
| 10/19/2005 | CN1683571A Gold extracting process for high arsenic gold mine |
| 10/19/2005 | CN1683570A Process for treating high arsenic high carbon gold mine |
| 10/19/2005 | CN1683569A Process for decomposing bactnaesite by hydrochloric acid method |
| 10/19/2005 | CN1683568A Sulfuric acid process for treating bastnaesite and separating and purifying cerium |
| 10/19/2005 | CN1683072A Novel high effective noble metal adsorbent and its preparing method |
| 10/19/2005 | CN1223689C Fully wet technology for extracting Mg from Mg contained dust |
| 10/19/2005 | CN1223688C Recovery method of palladium metal from waste palladium/aluminum oxide catalyst |
| 10/18/2005 | US6955938 Tantalum sputtering target and method of manufacture |
| 10/18/2005 | US6955796 Process for total environmental remediation of a phosphorus contaminated site |
| 10/13/2005 | US20050228103 Composition comprising intercalated metal-ion sequestrants |
| 10/13/2005 | US20050226797 First leaching the low magnesium containing ore fractions such as limonite, with sulfuric acid (H2SO4), sequentially followed by the leaching of the high magnesium-containing ore fractions using H2SO4 released in iron precipitation; iron residue free jarosite solid; recover nickel and cobalt |
| 10/13/2005 | US20050225014 Filter extraction mechanism |
| 10/13/2005 | US20050224410 Reducing the cross-section of the separation section with a dispersion-damming member in a trapezoidal settler; recovery of copper, uranium, cobalt, nickel or zinc |
| 10/12/2005 | EP1583848A1 Recovering metals from sulfidic materials |
| 10/12/2005 | EP1539320A4 Process for reducing chromium in nonvolatile residue resulting from air oxidation of cyclohexane |
| 10/12/2005 | CN1222630C Recovery of copper, nickel, and cobalt |
| 10/11/2005 | US6953120 Method of recovering metal and/or oxide thereof in a slurry and tailings obtained from said method |
| 10/06/2005 | WO2005093107A1 Recovery of metals from oxidised metalliferous materials |
| 10/06/2005 | US20050220686 Remediation of heavy metals in ammunition traps and shooting ranges |
| 10/06/2005 | US20050218078 Chromatographic interseparation of rhodium mixed with ruthenium and base metal(s) from a solution of complexes of these metals (ruthenium is present as a nitrosyl complex) by contacting a support functionalised with a substituted monoamine group having at least one hydrophilic group. |
| 10/06/2005 | US20050217432 Apparatus and method for the reduction of metals |
| 10/06/2005 | US20050217422 Method for refining concentrate containing precious metals |
| 10/06/2005 | CA2560594A1 Recovery of metals from oxidised metalliferous materials |
| 10/05/2005 | CN1678764A Removal of organic and inorganic carbonaceous materials from zinc silicate flotation concentrate and having additional effect of purifying the magnesium and water in process of zinc production |
| 10/05/2005 | CN1678763A Solvent extraction process |
| 10/05/2005 | CN1676639A Method for producing white arsenic using high-surfur high-arsenic-tin ore tailing |
| 10/05/2005 | CN1676638A Metal antimony purifying method and apparatus |