| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 08/07/2013 | CN103233123A Integrated recovery method of waste and old rare earth capacitance battery |
| 08/07/2013 | CN103233121A Intelligent indium production replacement tank |
| 08/07/2013 | CN103233120A Method for improving surface activity of floatation silver concentrates during oxygen pressure acid leaching process |
| 08/07/2013 | CN103233119A Process for producing manganese sulfate by treating two ores with acid |
| 08/07/2013 | CN103233118A Stacking and leaching method of tuff type cuprite |
| 08/07/2013 | CN103233117A Method for removing chlorine from zinc electrolytic waste liquid by utilizing floatation silver concentrate in oxygen pressure acid leaching process |
| 08/07/2013 | CN103232953A Acidithiobacillus ferrooxidans and applications thereof |
| 08/07/2013 | CN102747225B Method for comprehensively recycling copper, selenium and uranium from stone coal extraction vanadic acid immersion liquid |
| 08/07/2013 | CN102719657B Method for recycling heavy metal in electroplating sludge |
| 08/07/2013 | CN102703737B Method for extracting and separating rhenium from rhenium-containing slag |
| 08/07/2013 | CN102634661B Application of additive in enhancing oxidization of arsenical gold mineral by bacteria |
| 08/07/2013 | CN102586608B Method for preparing sponge indium with indium-rich slag produced in lead-zinc smelting process |
| 08/07/2013 | CN102534235B Method for recovering valued metals from cobalt-nickel residue obtained through antimony trioxide purification in zinc hydrometallurgy |
| 08/07/2013 | CN102409177B Method for comprehensively recovering aluminum, silicon and titanium from pyrite tailings |
| 08/07/2013 | CN102345019B Method for processing limonite lateritic nickel |
| 08/07/2013 | CN102345018B Method for processing nickel oxide ores |
| 08/07/2013 | CN102057064B Multi-stage leaching process |
| 08/06/2013 | US8500847 Method for aqueous gold thiosulfate extraction using copper-cyanide pretreated carbon adsorption |
| 08/06/2013 | US8500846 Rare metal extractant |
| 08/01/2013 | WO2013110419A1 Method for recovery of molybdate in a molybdate-catalysed delignification of pulp with hydrogen peroxide |
| 08/01/2013 | US20130192425 Method for recovering valuable metals from lithium secondary battery wastes |
| 08/01/2013 | CA2862543A1 Method for recovery of molybdate in a molybdate-catalysed delignification of pulp with hydrogen peroxide |
| 07/31/2013 | CN203096143U Feed liquid selective high-efficiency iron removing device |
| 07/31/2013 | CN203096142U Device for treatment of copper-containing waste residues by waste acid |
| 07/31/2013 | CN203096141U Intelligent displacement groove device for indium production |
| 07/31/2013 | CN203096140U Special iron removal device for dysprosium product liquid |
| 07/31/2013 | CN203096139U Neodymium iron boron waste material recovery and precipitation device with precise metering devices |
| 07/31/2013 | CN103225023A Method for leaching and recovering rare earth element from rare earth slag |
| 07/31/2013 | CN103225021A Dust extraction apparatus |
| 07/31/2013 | CN103225020A Device for separating precious metals from pregnant solution based on free flow electrophoresis technology and use thereof |
| 07/31/2013 | CN102719670B Method for purifying liquid after arsenic sedimentation by adopting sulfuric acid cinder |
| 07/31/2013 | CN102634662B Method for low-temperature deironing by using mixed gas of air and sulfur dioxide (SO2) |
| 07/31/2013 | CN102586599B Method for recovering valued metals from zinc anode sludge |
| 07/31/2013 | CN102251244B Cyclic regeneration and copper extraction process for printed circuit board etching waste solution |
| 07/31/2013 | CN101988153B Novel process for efficiently and fast removing iron in manganese ore wet process reduction method |
| 07/30/2013 | CA2654818C Process for reduced alkali consumption in the recovery of silver |
| 07/30/2013 | CA2639165C Method for recovering metal from ore |
| 07/30/2013 | CA2589666C Process for the recovery of elemental sulphur from residues produced in hydrometallurgical processes |
| 07/25/2013 | WO2013108645A1 Hydrogen sulfide gas production plant and method for recovering and using waste hydrogen sulfide gas |
| 07/25/2013 | WO2013108478A1 Gold recovery method, and gold production method using same |
| 07/25/2013 | WO2013107937A1 A method, a system, and an apparatus for reducing the content of and/or for separating compounds from source material |
| 07/25/2013 | US20130186236 Energy Efficient Salt-Free Recovery Of Metal From Dross |
| 07/25/2013 | DE102012200990A1 Verfahren zur Rückgewinnung von Molybdat bei einer mit Molybdat katalysierten Delignifizierung von Zellstoff mit Wasserstoffperoxid A process for the recovery of molybdate at a molybdate-catalyzed delignification of pulp with hydrogen peroxide |
| 07/25/2013 | CA2861419A1 Method of recovering gold and method of manufacturing gold using the same |
| 07/24/2013 | EP2616395A2 A method for the removal of organic chemicals and organometallic complexes from process water or other streams of a mineral processing plant using zeolite |
| 07/24/2013 | EP2616171A1 Device and method for dispersing two solutions in each other in solvent extraction |
| 07/24/2013 | CN103221557A Method for producing nickel-ontaining acidic solution |
| 07/24/2013 | CN103215453A Method for treating waste residue by using arsenious wastewater in clean mode |
| 07/24/2013 | CN103215451A Recovery method of rare earth elements in ionic rare earth smelting acid dissolution slag |
| 07/24/2013 | CN103215449A Method for separating chlorine from zinc sulfate solution with high chlorine concentration |
| 07/24/2013 | CN103215448A Method for extracting scandium from scandium-containing iron-rich acid liquor through P507 |
| 07/24/2013 | CN103215447A Method for extracting scandium from scandium-enriched ferrous acid solution by using P204 |
| 07/24/2013 | CN103215446A Serpentine type laterite nickel ore hydrochloric acid normal pressure leaching cleaning production method |
| 07/24/2013 | CN103215439A Method for extracting scandium from scandium enrichment |
| 07/24/2013 | CN103215435A Method for comprehensively recycling zinc, copper, lead, gold, silver and sulfur from floatation silver concentrate |
| 07/24/2013 | CN103214511A Waste tributyl phosphate impurity removing method |
| 07/24/2013 | CN102676812B Device for recycling organic entrained spent acid extracted through wet process and recycling method by using recycling device |
| 07/24/2013 | CN102660680B Porous distributing valve for continuous adsorption exchange equipment |
| 07/24/2013 | CN102560118B Method for recycling tin and lead from waste circuit board leach liquor |
| 07/24/2013 | CN102389982B Method for preparing aluminum-based layered nanometer material by utilizing vanadium slurry |
| 07/24/2013 | CN101942568B Method for recovering noble metal from waste computer and fittings thereof |
| 07/24/2013 | CN101892394B Method and device for extracting lithium from lithium mica |
| 07/23/2013 | US8491858 Gas stream multi-pollutants control systems and methods |
| 07/23/2013 | US8491701 Methods and systems for leaching a metal-bearing ore for the recovery of a metal value |
| 07/23/2013 | US8491700 Methods and systems for recovering rhenium from a copper leach |
| 07/18/2013 | WO2013105454A1 Flash vessel and method for operating same |
| 07/18/2013 | WO2013105453A1 Method for operating flash vessel |
| 07/18/2013 | WO2013105291A1 High-purity manganese and method for producing same |
| 07/18/2013 | WO2013104059A1 Processes for treating red mud |
| 07/18/2013 | WO2013104045A1 Method for selective precipitation of iron, arsenic and antimony |
| 07/18/2013 | US20130180363 Method for efficiently recovering platinum group elements from copper-iron scrap |
| 07/18/2013 | CA2875776A1 Processes for treating red mud |
| 07/18/2013 | CA2857574A1 Processes for treating red mud |
| 07/17/2013 | EP2614868A1 Liquid-liquid extraction unit, multistage liquid-liquid extraction apparatus using the unit, and multistage continuous extraction system for rare earth elements |
| 07/17/2013 | CN203065543U System for detecting reduction leaching degree of ore concentrate containing trivalent cobalt on production site |
| 07/17/2013 | CN203065542U High-purity niobium/tantalum oxide wet process smelting water distribution washing monitoring system |
| 07/17/2013 | CN103210099A Hydrometallurgical method for the recovery of zinc in a sulphur medium from sulphured zinc concentrates |
| 07/17/2013 | CN103205577A Method for extracting and separating lead from waste lead-containing glass |
| 07/17/2013 | CN103205572A Method for saponifying P204 |
| 07/17/2013 | CN103205571A Treatment process for high-carbon high-arsenic gold ores |
| 07/17/2013 | CN103205570A Method for producing vanadium pentoxide and by-product manganese sulfate from by using coal vanadium ore and pyrolusite together |
| 07/17/2013 | CN103205569A Method for treating nickel laterite ores |
| 07/17/2013 | CN103205568A Utilization method of laterite nickel ore |
| 07/17/2013 | CN103205567A Method for enriching gold and platinum group metal in process of melting copper-nickel sulfide ore |
| 07/17/2013 | CN103205566A In-situ leaching seepage test system |
| 07/17/2013 | CN103205563A Method for extracting rare noble metals by wet method |
| 07/17/2013 | CN103205562A Vanadium extracting process from stone coal navajoite |
| 07/17/2013 | CN103205560A Impurity-removing and magnetic separation method for converter dust removal ash (magnetic separation sludge) |
| 07/17/2013 | CN103205381A Decarbonizing and desulphurizing bacterium agent for difficultly-selected gold ore and application thereof |
| 07/17/2013 | CN102676803B Resource utilization method for catalytic oxidation leaching of molybdenum and nickel from molybdenum-nickel ore |
| 07/17/2013 | CN102534227B Method for extracting indium from indium-rich smoke dust by using oxygen pressure technology |
| 07/17/2013 | CN102409165B Gradient arsenic removing method for high-arsenic metallurgical wastes |
| 07/17/2013 | CN102392130B Method for recovering lead and tin from zinc leaching residues |
| 07/16/2013 | US8486355 Method for leaching cobalt from oxidised cobalt ores |
| 07/16/2013 | US8486177 Heap leaching |
| 07/11/2013 | WO2013103099A1 Method for separating and recovering rare-earth element |
| 07/11/2013 | US20130177749 Nanostructures |
| 07/11/2013 | US20130177488 Process for separating zirconium and hafnium tetrachlorides from mixtures |
| 07/10/2013 | CN203049006U Fluorine and chlorine purification system in zinc smelting industry |
| 07/10/2013 | CN203049005U Bacterial leaching tank |