| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 06/10/2008 | CA2172340C Method of extracting metals from ore material using material bed comminution and tank and heap leaching |
| 06/05/2008 | US20080128357 Separation of platinum group metals |
| 06/05/2008 | US20080127779 Acidithiobacillus thiooxidans, Acidithiobacillus ferrooxidans; no native microorganisms grown in inoculation solutions; no ferric oxidizing ions; inoculating, irrigating solutions nutrients are salts of ammonium, potassium, phosphate, iron, magnesium; carbon dioxide enriched air injected; self sustained |
| 06/04/2008 | EP1926713A1 Phenoxypyrazole composition and process for the solvent extraction of metals |
| 06/04/2008 | CN101194034A Titanium intermediate processing |
| 06/04/2008 | CN101194033A Titanium intermediate processing |
| 06/04/2008 | CN101191161A Mechanical activating strengthening alkali decomposition cleaning transforming method for hard-decomposition tantalum niobium concentrate |
| 06/04/2008 | CN101191154A Revolving drum type bioreactor used for microorganism lixiviation |
| 06/04/2008 | CN101191153A Pyrite selectivity inhibition technique for secondary copper sulfide mineral biological lixiviation process |
| 06/04/2008 | CN101191152A Biological stirring cobalt-dipping technique for concentrate containing cobalt and sulfur |
| 06/04/2008 | CN101191151A Process for extraction of nickel, cobalt, and other base metals from laterite ores by using heap leaching and product containing nickel, cobalt, and other metals from laterite ores |
| 06/04/2008 | CN101191122A Mesophilic acidophilic bacteria and biological heap leaching technique for low-grade cobalt-containing sulfur concentrate |
| 06/04/2008 | CN100392124C Method of retrieving magnesium from high magnesium phosphorus ore |
| 06/04/2008 | CN100392122C Method for extracting gold (I) from enriched alkaline cyanide gold immersing liquid |
| 06/03/2008 | US7381380 Plasma based trace metal removal apparatus |
| 06/03/2008 | CA2377779C Process for the extraction of copper |
| 05/29/2008 | WO2008032288A3 Pre-treatment of feed to non-stirred surface bioreactor |
| 05/29/2008 | WO2008010175B1 Air distributor for heap leaching process |
| 05/28/2008 | EP1613785A4 Reductive ammoniacal leaching of nickel and cobalt bearing materials |
| 05/28/2008 | CN101187042A Method for preparing TiC mTiO sosoloid using titanium complex ore as material |
| 05/28/2008 | CN101186977A Method for decomposing hamartite |
| 05/28/2008 | CN101186976A Method for withdrawing indium from indium-containing material |
| 05/28/2008 | CN101186974A Reclamation of germanium from germanium waste material by wet method |
| 05/28/2008 | CN101186973A Reclamation of germanium from chromium-germanium alloy waste material by wet method |
| 05/28/2008 | CN101186972A Leaching treatment technique for cobalt-containing rare alloy |
| 05/28/2008 | CN101186971A Method for reclaiming precious metal palladium from waste palladium-carbon catalyst |
| 05/28/2008 | CN101186970A Method for extracting neodymium from neodymium-iron-boron electroplating pre-processing acid washing waste water |
| 05/28/2008 | CN101186969A Method for separating rare earth, iron, copper, cobalt and tungsten from alloy |
| 05/28/2008 | CN101186968A Method for producing refined lithium sulfate solution used in lepidolite lithium-extracting technique by sulfuric acid process |
| 05/28/2008 | CN101186967A Technique for comprehensive utilization clean production of phosphorus block ore and extracting rare earth form the phosphorus block ore |
| 05/28/2008 | CN100390311C Method of combined dissolve to multiple tungsten to deeply extracting tungsten |
| 05/28/2008 | CN100390310C Method for recovering silver from low silver contained industrial waste water |
| 05/28/2008 | CN100390308C Interlaced series parallel configuration for metal solvent extraction plants |
| 05/28/2008 | CN100390307C Preparation process of Bayer process leaching additive |
| 05/22/2008 | WO2008059439A1 Sulfidisation process and apparatus for enhanced recovery of oxidised and surface oxidised base and precious metal minerals |
| 05/22/2008 | US20080118421 Treatment chalcopyrite, in a fluidized bed reactor; mixture of copper oxide and copper sulfate product are liquid soluble and directly recoverable; ratio of the oxide-sulfate mixture end product may be controlled by suitable control of microwave parameters |
| 05/22/2008 | CA2669785A1 Sulfidisation process and apparatus for enhanced recovery of oxidised and surface oxidised base and precious metal minerals |
| 05/22/2008 | CA2610927A1 Method of making up and treating nickel concentrates |
| 05/21/2008 | EP1923473A1 Bis-diglycolamides (BISDGA) as new extractants for lanthanides [Ln(III)] and actinides [An(III)] from aqueous high-level wastes |
| 05/21/2008 | EP1922424A1 Method and apparatus for the recovery of refractory mineral ores |
| 05/21/2008 | EP1922423A1 Hydrometallurgical method for the extraction of nickel and cobalt from laterite ores |
| 05/21/2008 | EP1922422A2 Process for recovering platinum group metals, rhenium and gold |
| 05/21/2008 | EP1620576A4 Improved heap leach |
| 05/21/2008 | CN201062278Y Saltpeter mineral leaching groove |
| 05/21/2008 | CN101184857A 硫化矿的堆浸 Heap leaching of sulphide ore |
| 05/21/2008 | CN101184856A Process for the treatment of electric and other furnace dusts and residues containing zinc oxides and zinc ferrites |
| 05/21/2008 | CN101182601A Method for extracting metal scandium and titanium from red mud |
| 05/21/2008 | CN101182600A Combined technology for separating and extracting vanadium from high calcium and high ferro steel scoria |
| 05/21/2008 | CN101182597A Method of acidic extractant complexing extraction separation rare-earth element |
| 05/21/2008 | CN101182596A Method for extracting vanadic anhydride from stone coal vanadium ore |
| 05/20/2008 | US7374732 Oxidative leaching of sulfide mineral slurry, circulation stream of leaching liquid; flashing cooling |
| 05/15/2008 | WO2008055335A1 Process for recovery of nickel and cobalt from laterite ores using ion exchange resin |
| 05/15/2008 | WO2001056933A3 Combined supported liquid membrane/strip dispersion processes and extractants |
| 05/15/2008 | US20080112864 Gold and silver recovery from polymetallic sulfides by treatment with halogens |
| 05/15/2008 | US20080112863 Method for the Elimination of Uranium (VI) Species in the Form of Uranyl Complexes from Waters |
| 05/15/2008 | US20080110767 very effectively with a low frequency electrolysis current; current efficiencies of between 120% and 140% lead to the conclusion that a chemical dissolving process is also taking place; reversed polarity; passivation layer becomes detached with the inclusion of metallic constituents; Re, Pt, Ta, Hf |
| 05/15/2008 | US20080110296 Process for recovering platinum group metals, rhenium and gold |
| 05/15/2008 | CA2669147A1 Process for recovery of nickel and cobalt from laterite ores using ion exchange resin |
| 05/14/2008 | EP1608787A4 Microorganism and method for leaching mineral sulphides |
| 05/14/2008 | CN101177741A Method for producing 4N metal gallium |
| 05/14/2008 | CN101177740A Method for separating indium in zinc calcine acid leaching solution |
| 05/14/2008 | CN101177739A Novel process for extracting vanadium from bone coal vanadium ore by resin-in-slurry method |
| 05/14/2008 | CN101177736A Method for bioleaching metal containing sulphidic materials |
| 05/14/2008 | CN101177735A Process for extracting and separating nickel-phase form bone coal ore by high pressure oxygen-ammonia leaching |
| 05/14/2008 | CN101177734A Method for flotation of high-grade pyrite from gold extraction residues |
| 05/14/2008 | CN101177733A Technology for extracting germanium from germanium-containing coal by ultrasonic-wave assisted acid weak oxidation process |
| 05/14/2008 | CN100387734C Method of extracting radioactive uranium in fly ash |
| 05/14/2008 | CN100387733C Method of extractin zinc from low grade zinc ore |
| 05/08/2008 | WO2008053618A1 Method for collection of valuable metal from ito scrap |
| 05/08/2008 | WO2008053616A1 Method for collection of valuable metal from ito scrap |
| 05/08/2008 | WO2008052324A1 Selective precipitation of metal sulfides |
| 05/08/2008 | US20080105088 Method for thiosulfate leaching of precious metal-containing materials |
| 05/08/2008 | CA2668022A1 Selective precipitation of metal sulfides |
| 05/08/2008 | CA2667245A1 Method for collection of valuable metal from ito scrap |
| 05/07/2008 | EP1917083A1 Apparatus for production, withdrawal and transfer of highly viscous slurry |
| 05/07/2008 | EP1831411B1 Extraction process for metals like gold and platinum incl. fine grinding , pulping and oxygenating |
| 05/07/2008 | CN201056584Y Microbial leaching device |
| 05/07/2008 | CN101175863A An improved process for heap leaching of nickeliferous oxidic ores |
| 05/07/2008 | CN101173328A Method for extracting vanadium with high-temperature wet method salting-in leaching |
| 05/07/2008 | CN101173326A Method for recovery utilization of acid waste liquid generated in waste lead acid accumulator lead -recovery process |
| 05/07/2008 | CN100386454C Wet gold purifying process |
| 05/07/2008 | CN100386453C Method for decoating on waste plastic metal |
| 05/07/2008 | CN100386452C Method of dynamic continuous oxidation extracting cerium under potassium hypermanganate preferential extraction condition |
| 05/07/2008 | CN100386451C Low temperature bauxite leaching process |
| 05/07/2008 | CN100386450C Cooperated leaching method for low-grade intractable gold mine |
| 05/06/2008 | CA2364953C Electrochemical processing |
| 05/02/2008 | CA2666229A1 Method for production of metallic cobalt from the nickel solvent extraction raffinate |
| 04/30/2008 | CN201053025Y Modified gold plating waste water reclaiming device |
| 04/30/2008 | CN101171348A Method for the recovery of valuable metals and arsenic from a solution |
| 04/30/2008 | CN101168802A Method for synthetically reclaiming iron, vanadium and titanium from vanadium titanium magnet concentrate |
| 04/30/2008 | CN101168799A Extraction separation method for circularly preparing saponification organic phase rear earth from chloride solvent |
| 04/30/2008 | CN100385026C 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 |
| 04/30/2008 | CN100385025C Method of coproducing modified polyiron from copper extracted PCB acid etching waste liquid |
| 04/30/2008 | CN100385023C Copper recovering treatment process |
| 04/30/2008 | CN100385022C Leach extraction method |
| 04/30/2008 | CN100384528C Novel high effective noble metal adsorbent and its preparing method |
| 04/29/2008 | CA2454821C Process for direct electrowinning of copper |
| 04/24/2008 | US20080092693 Exothermic Pressure Leach Autoclave Circuits |
| 04/23/2008 | CN100383263C Inhibition of the depletion of precious metal values from pregnant lixiviant solutions |
| 04/23/2008 | CN100383262C Method for increasing metal-extracting efficiency of 1,, (2-ethyl-hexyl) phosphate |