| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 10/11/2011 | US8034158 Method of manufacturing Fe and Ni containing material, ferronickel mass using the Fe and Ni containing material and method for manufacturing the ferronickel mass |
| 10/06/2011 | WO2011120826A1 Method for determining the quantity of magnetic particles in a suspension |
| 10/06/2011 | WO2011120127A1 Low acid leaching of nickel and cobalt from lean iron-containing nickel ores |
| 10/05/2011 | EP2370605A1 Process for controlled oxidation of a ferrous solution |
| 10/05/2011 | CN102206834A Method for directly producing electrolytic nickel by using low nickel matte |
| 10/05/2011 | CN102206763A Method for producing rare earth carbonate without discharge of ammonia and nitrogen |
| 10/05/2011 | CN102206760A Method for haydrometallurgy of zinc |
| 10/05/2011 | CN102206758A Method and equipment for wet extraction of zinc, cadmium and copper from zinc-containing waste residue |
| 10/05/2011 | CN102206757A Heavy metal recycling method based on municipal solid waste incineration (MSWI) fly ash |
| 10/05/2011 | CN102206755A Method for separating and recovering valuable elements from neodymium-iron-boron wastes |
| 10/05/2011 | CN102206753A Method for improving 2A process plutonium concentration multiple in Purex flow |
| 10/05/2011 | CN102206752A Method for removing organic matter contained in supernatant liquor obtained from zinc hydrometallurgy through active carbons |
| 10/05/2011 | CN102206751A Method for continuously recovering copper from printed circuit boards by microbial metabolites under action of micro electric field |
| 10/05/2011 | CN102206750A Method for recovering lead from lead-containing material by matching leaching-electrowinning method |
| 10/05/2011 | CN102206749A Normal-pressure leaching method for simultaneously processing laterites with high iron content and high magnesium content |
| 10/05/2011 | CN102206748A Method for extracting potassium, rubidium, caesium and vanadium |
| 10/05/2011 | CN101798633B Method for treating limonite type oxidized nickel ore by roasting and leaching |
| 10/05/2011 | CN101709373B Method and system for treating lead-zinc sulfide ores |
| 10/04/2011 | US8030055 Method of biotreatment for solid materials in a nonstirred surface bioreactor |
| 10/04/2011 | US8029750 Process and device for removal of exhaust gases |
| 10/04/2011 | US8029598 Method for recovering metal values from refractory sulfide ore |
| 09/29/2011 | WO2011117524A1 Method for recycling a used surface treatment bath containing trivalent chromium, and related device |
| 09/29/2011 | WO2011116426A1 Process for leaching refractory uraniferous minerals |
| 09/28/2011 | EP2010684B1 Processing of waste or cyclone solids from the chlorination of titanium bearing ores |
| 09/28/2011 | CN102203306A A bench scale pressure reactor unit with data acquisition and control system for chemical leaching of minerals |
| 09/28/2011 | CN102199710A Method for extracting and separating nickel and molybdenum from nickel-molybdenum-containing coal gangue |
| 09/28/2011 | CN102199708A Method for treating arsenic-alkali residue generated in antimony smelting |
| 09/28/2011 | CN102199704A Recycling use method of sodium chloride or sodium sulfate in hydrometallurgy |
| 09/28/2011 | CN102021332B Technology for recycling Ni, Co, Fe, and Mg from nickel oxide mineral |
| 09/28/2011 | CN101812586B Method for replacing copper slag with high impurities and low grade to produce cuprous oxide |
| 09/28/2011 | CN101760649B Bacterial leaching way of vanadium in high-sulfur vanadium stone-like coal |
| 09/27/2011 | CA2649851C Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction |
| 09/27/2011 | CA2566596C Leaching process for copper concentrates |
| 09/27/2011 | CA2457379C Method of obtaining nickel |
| 09/22/2011 | WO2011114824A1 Low α-dose tin or tin alloy and method for producing same |
| 09/22/2011 | WO2011114000A1 Method of processing nickel bearing raw material |
| 09/22/2011 | WO2011113997A1 Reactor and a method of purifying a process solution |
| 09/22/2011 | WO2011113080A1 Method of oxidative leaching of molybdenum - rhenium sulfide ores and/or concentrates |
| 09/22/2011 | US20110230689 Disposal of electrical and electronic equipment |
| 09/22/2011 | US20110226694 Methods of reducing radiotoxicity in aqueous acidic solutions and a reaction system for same |
| 09/22/2011 | CA2793240A1 Method of oxidative leaching of molybdenum - rhenium sulfide ores and/or concentrates |
| 09/22/2011 | CA2792401A1 Method of processing nickel bearing raw material |
| 09/22/2011 | CA2789235A1 Reactor and a method of purifying a process solution |
| 09/21/2011 | EP2366036A1 Recovery of metals and acids from exhausted pickling solutions and/or neutralization sludge |
| 09/21/2011 | EP2142677B1 Reactor for separating aluminium from multi-layer film materials |
| 09/21/2011 | CN201981244U Device for improving dissolution efficiency of aluminum ores subjected to acid treatment |
| 09/21/2011 | CN102191390A Method for recovering hexavalent chromium resources from chromium slag |
| 09/21/2011 | CN102191388A Process for extracting vanadium from stone coal through two-section curing with concentrated acid |
| 09/21/2011 | CN102191387A Method for purifying titanium solution |
| 09/21/2011 | CN102191384A Method for extracting gallium from fly ash |
| 09/21/2011 | CN102191383A Treatment method for waste printed circuit board |
| 09/21/2011 | CN102191381A Method for removing calcium and manganese from nickel sulfate solution without saponification extraction |
| 09/21/2011 | CN102191380A Recovery method for cobalt |
| 09/21/2011 | CN102191379A Recovery method for cobalt contained in copper-containing solution |
| 09/21/2011 | CN102191378A Electrolyte preparation process for electrolyzing manganese |
| 09/21/2011 | CN102191377A Red clay nickel ore heap leaching method |
| 09/21/2011 | CN102191376A Pond leaching method of laterite-nickel ore |
| 09/21/2011 | CN102191375A Technology for recycling gold and silver through direct flotation under high Zn<2+> concentration of zinc hydrometallurgy acid leaching pulp |
| 09/21/2011 | CN102191374A Method for recycling traditional chromium residue |
| 09/21/2011 | CN102191373A Novel method configured in wet smelter |
| 09/21/2011 | CN102191372A Combined type stirring impeller for increasing leaching rate of manganese metal electrolyte |
| 09/21/2011 | CN102191371A Method for separating iron and zinc in traditional zinc iron and zinc process |
| 09/21/2011 | CN101892384B Method for producing mercury-free alkaline manganese electrolytic manganese dioxide |
| 09/21/2011 | CN101787546B Method utilizing titanium white waste acid to prepare electrolytic manganese metal |
| 09/21/2011 | CN101748447B Method for producing electrolytic manganese metal |
| 09/20/2011 | US8021870 Method of biotreating a solid material comprising an organic compound |
| 09/20/2011 | US8021461 Remedial heap treatment |
| 09/20/2011 | US8021459 Method and apparatus for controlling metal separation |
| 09/20/2011 | US8020710 Method and equipment for liquid-liquid extraction |
| 09/17/2011 | CA2732486A1 Recovery method for cobalt |
| 09/15/2011 | WO2011111407A1 Method for wastewater treatment for wastewater containing aluminum, magnesium and manganese |
| 09/15/2011 | CA2792400A1 Method for wastewater treatment for wastewater containing aluminium, magnesium, and manganese |
| 09/14/2011 | CN201971878U 湿法炼锌工艺中防止镉复溶的砷盐净化除镉装置 Hydrometallurgy process to prevent the reconstitution of arsenic cadmium salt purification devices in addition to cadmium |
| 09/14/2011 | CN201971877U 一种除镉沸腾净化槽系统的加料装置 One kind except cadmium boiling purification tank system charging device |
| 09/14/2011 | CN201971876U 一种硫酸锌溶液净化装置 A zinc sulfate solution purification device |
| 09/14/2011 | CN102187000A Metal extractant reagents having increased resistance to degradation |
| 09/14/2011 | CN102181669A Method for preparing titanium-enriched material from high-impurity-content ilmenite concentrate |
| 09/14/2011 | CN102181668A Combined extraction method for arsenic in high-arsenic manganese ore tailings |
| 09/14/2011 | CN102181666A Method for treating red soil nickel ore leaching liquid |
| 09/14/2011 | CN102181665A Method for keeping balance of sodium-magnesium-water system in technique for extracting nickel from lateritic nickel ore by wet process |
| 09/14/2011 | CN102181653A Method for recovering germanium from germanium-containing smoke dust |
| 09/14/2011 | CN102181649A Method for recovering germanium from germanium extraction residues |
| 09/14/2011 | CN102181647A Method for extracting chromated nickel from low-grade stainless steel sludge by using stainless steel acid-washing waste mother liquor |
| 09/14/2011 | CN102181644A Method for reclaiming rare noble metals from waste circuit board |
| 09/14/2011 | CN102181638A Method for removing iron from leachate of nickel oxide ores |
| 09/14/2011 | CN102181637A Preparation method of sulfo-molybdate for separating molybdenum from tungstate solution |
| 09/14/2011 | CN102181636A Modified beta-diketone extracting agent |
| 09/14/2011 | CN102181635A Method for preparing vanadium pentoxide from sulfuric acid leach liquor of stone coal vanadium ore |
| 09/14/2011 | CN102181634A Process for controlling alkalinity in large-scale dump leaching production process of oxidized gold ores |
| 09/14/2011 | CN102181633A Molybdenum concentrate constant pressure oxidation leaching technology of byproduct concentrated sulfuric acid |
| 09/14/2011 | CN102181632A Wet pretreatment method for carbonaceous refractory gold concentrate |
| 09/14/2011 | CN102181631A Method for producing electrolytic zinc by using cobalt-rich raw material |
| 09/14/2011 | CN102181627A Method for treating primary low-grade high-phosphorus manganese ore by acid blending curing |
| 09/14/2011 | CN102179524A Method for preparing coated nano zero valent iron by rheological phase reaction method, and prepared product thereof |
| 09/14/2011 | CN101914691B Method for extracting nickel and cobalt by processing poor nickel laterite |
| 09/14/2011 | CN101787432B Method for preparing acid-soluble titanium slag from high-titanium slag |
| 09/14/2011 | CN101787431B Method for preparing acid-soluble titanium slag by high titanium slag through microwave irradiation |
| 09/14/2011 | CN101633981B Titaniferous material acidolysis method and titanium dioxide preparing method |
| 09/13/2011 | US8016913 Nickel-laterite process |
| 09/09/2011 | CA2791636A1 Method of metals recovery from refinery residues |