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Patent Searching and Data


Matches 401 - 450 out of 3,911

Document Document Title
WO/2011/058564
A process for production of minerals using an evaporation unit comprising an evaporation element for exposing thereof to the atmosphere for evaporation of a liquid solution therefrom. The evaporation element comprises an evaporation surf...  
WO/2011/059380
The present disclosure relates to a process for recovering a valuable metal from a sulfidic material. The process comprises subjecting the sulfidic material to a hydrometallugical step followed by selective removal of elemental sulful fr...  
WO/2011/056548
Disclosed is a process and system for removing metals from waste, particularly electronic waste (or "e- waste"). The process generally includes the steps of dissolving at least some of the metals from the waste and then causing at least ...  
WO/2011/056576
Disclosed is a process and system for removing metals from waste, particularly electronic waste (or "e- waste"). The process generally includes the steps of dissolving at least some of the metals from the waste and then causing at least ...  
WO/2011/056576
Disclosed is a system for removing metals from waste, particularly electronic waste (or "e- waste"). The process generally includes the steps of dissolving at least some of the metals from the wastein a nitric acid bath and then causing ...  
WO/2011/056548
Disclosed is a process and system for removing metals from waste, particularly electronic waste (or "e- waste"). The process generally includes the steps of dissolving in nitric acid at least some of the metals from the waste and then ca...  
WO/2011/049218
A method of molybdenum refining is provided, the method enabling high-purity molybdenum to be easily obtained in a high yield. The method of molybdenum refining is characterized by including a step in which molybdenum ore or a molybdenum...  
WO/2011/047477
A method of recovering copper from a copper sulfide concentrate comprising a copper arsenic sulfosalt or a copper antimony sulfosalt, using carbon as a catalyst. The concentrate and carbon are added to an acidic sulfate leach solution. T...  
WO/2011/048927
A wet smelting plant for nickel oxide ore that comprises a plurality of series of processing facilities is provided in which, even when a serious trouble occurred somewhere in the processing facilities, it is possible to minimize the red...  
WO/2011/041873
By appropriately designing a flash tube, spraying of abrasive on the vessel walls and impinging the multiphase jet on the bottom of the vessel are minimized. By appropriately designing a flash vessel, once the flash tube has been designe...  
WO/2011/038746
The invention relates to a method for dezincifying zinced steel scrap, wherein the zinced steel scrap is brought into contact with an acidic solution, which is already pre-loaded with zinc ions. It has been shown that a significant accel...  
WO/2011/035380
A process is disclosed for recovering one or more metals from an industrial residue/waste. The process comprises the steps of: (a) adding the residue/waste as a sludge or solid to leaching stage in which it is leached with an aqueous hal...  
WO/2011/030301
A process for treating a feedstock is provided. The feedstock comprises a mineral and/or a metal oxide/silicate derived from or associated with a mineral. The process comprises treating the feedstock by reacting, in a reaction step, the ...  
WO/2011/029172
There is provided a method of treating a metalliferrous material, comprising: providing a metalliferrous material including at least one target metallic element; solubilising the metalliferrous material so as to effect production of an i...  
WO/2011/026434
Titaniumrich hydrochloric acid leaching residue is provided, which belongs to the field of the preparation of titanium dioxide and relates to the titaniumrich hydrochloric acid leaching residue prepared by hydrochloric acid leaching ilme...  
WO/2011/027094
A nickel recovery process usable for instance with electro less plating waste The process including reacting the waste material with dimethylglyoxime to form an intermediate complex nickel dimethylglyoxime and a nickel depleted waste mat...  
WO/2011/024164
An improved process for the separation of different metal values from raw materials, and an apparatus for carrying out such processes are disclosed.  
WO/2011/022817
A process to the production of silicon from amorphous silica is disclosed. The amorphous silica is formed from a material rich in silica, especially rice husk ash or silica fume. The process comprises subjecting the amorphous silica to l...  
WO/2011/024184
The novel lipophilic metal extractants of the class dialklydiaza-tetraalkyloctanediamide (DADA) useful to selectively separate trivalent americium (sup. 241 Am) from trivalent lanthanides are represented by the formula (1): Wherein R is ...  
WO/2011/021696
Provided are a palladium ion adsorbent for solid-liquid adsorption which has both the extraction performance and selectivity of a palladium extractant for liquid-liquid extraction used in conventional solvent extraction methods and which...  
WO/2011/020181
Calcium (Ca), manganese (Mn) and magnesium (Mg) carbonate plus lead (Pb) and zinc (Zn) sulphide minerals in a permeable host, crushed ore, concentrates or as mine discharge tailing are selectively solution mined (in-situ or ex-situ) with...  
WO/2011/018550
The invention relates to a method for leaching an ore containing copper and cobalt in a reactor, where the copper and cobalt minerals of the ore are mainly oxidic and partially sulphidic. The copper and cobalt of the ground ore are leach...  
WO/2011/015991
A process is described for leaching a value metal from an iron-containing ore, the process including the steps of leaching the ore in an acidic sulfate solution so as to form an iron-sulfate salt in a leach solution; adding sulfur dioxid...  
WO/2011/014930
A method for leaching cobalt from a non-lateritic oxidised cobalt ore, the method comprising the method steps of: curing the non-lateritic oxidised cobalt ore to be leached through the application of an aqueous solution of a cobalt reduc...  
WO/2011/015991
A process is described for leaching a value metal from an iron-containing ore, the process including the steps of leaching the ore in an acidic sulfate solution so as to form an iron-sulfate salt in a leach solution; adding sulfur dioxid...  
WO/2011/012579
The invention relates to the use of a diglycolamide to increase the separation factor between americium and curium and/or between lanthanides during an extraction operation including contacting an acidic aqueous phase, which contains ame...  
WO/2011/012563
The invention relates to a method for selectively recovering americium from an aqueous nitric phase containing americium, curium, and fission products including lanthanides and yttrium, but free of uranium, plutonium and neptunium, or wh...  
WO/2011/010289
This invention relates to a process for the recovery of precious metal/s from a precious metal-containing material in an aqueous leach slurry or solution. The process includes the step of contacting the precious metal/s in the leach slur...  
WO/2011/010289
This invention relates to a process for the recovery of precious metal/s from a precious metal-containing material in an aqueous leach slurry or solution. The process includes the step of contacting the precious metal/s in the leach slur...  
WO/2011/006223
A method for recovering base metal values from oxide ore is provided, where the ore includes a first group metal selected from nickel, cobalt and copper. The method includes reducing ore particle size to suit the latter unit operation, f...  
WO/2011/008137
The invention relates to methods for extracting rare earth elements, in particular from phosphogypsum. The proposed method involves the acid extraction of rare earth element compounds from phosphogypsum using a solution consisting of a m...  
WO/2011/005736
Provided herein are processes for recovering molybdenum and/or other value metals (e.g., uranium) present in aqueous solutions from a large range of concentrations: from ppm to grams per liter via a solvent extraction process by extracti...  
WO/2011/005736
Provided herein are processes for recovering molybdenum and/or other value metals (e.g., uranium) present in aqueous solutions from a large range of concentrations: from ppm to grams per liter via a solvent extraction process by extracti...  
WO/2011/000051
A method of recovering gold from a gold containing source material comprising: forming a molten pool comprising at least one metal selected from the group consisting of copper, silver, gold and platinum group metals; and adding at least ...  
WO/2010/149841
The invention relates to a method for leaching bulk concentrate of chalcopyrite-type by means of an aqueous solution containing sulphuric acid and an oxygen feed at atmospheric pressure and at a temperature between 750C and the boiling p...  
WO/2010/146596
A process for producing high grade blast furnace feed from poor grade iron ore ultra fines consists of processing ultra fines by selective dispersion to separate gangue materials from settled material iron and processing settled material...  
WO/2010/146876
Provided is a method comprising a step (i) in which voltage is applied between a first and second electrode (21 and 22), positioned to be in contact with an ion-conductive material, such that the first electrode (21) becomes a cathode. T...  
WO/2010/143623
A method for water and metal recovery from a plating wastewater resulting from washing is disclosed with which water and metals are efficiently recovered from the plating wastewater, the method comprising an iron insolubilization step in...  
WO/2010/142841
The invention relates to a method and apparatus for restoring the extractive potential of organic hydroxyoxime-based extraction solution used in the recovery of metals by liquid-liquid extraction. The method is two-stage, in which an aqu...  
WO/2010/144435
A right angle gearbox is described that includes an enclosure, an input member, an output member, and an assembly. The enclosure has dimensions such that the gearbox is operable as a drop in replacement for a gearbox that includes a worm...  
WO/2010/140701
Disclosed is a method for metal recovery using plants. The aforementioned metal recovery method involves bringing protonemata from moss plants belonging to the family Funariaceae into contact with a metal-containing solution in which is ...  
WO/2010/135776
A method for leaching one or more target metals from a sulfide ore and/or concentrate containing such, the method comprising the steps of: (a) Exposing the ore and/or concentrate to an aqueous solution of chlorine-based oxidising species...  
WO/2010/138094
The invention relates to a method and devices for extracting gold from placer deposits and ores. According to the present invention, a gold-containing pulp is prepared using an absorbent prepared from liquid hydrocarbons, wherein the den...  
WO/2010/135819
The invention provides, in part, a process for extracting nickel from a source material including iron and nickel, by contacting the source material (e.g, an ultramafic ore) with an aqueous ammonia solution containing an iron-complexing ...  
WO/2010/131686
Provided is a scorodite-type iron-arsenic compound having good filtration performance that satisfies the criteria for elution tests (initial pH of 5.8 to 6.3) in accordance with Japanese laws and ordinances (Ministry of the Environment B...  
WO/2010/126593
A method involves mixing with an aqueous medium a metal-bearing ore and/or other raw source material containing a first metal in an insoluble form, a Cr bearing material as a second metal, and other compounds to obtain a slurry containin...  
WO/2010/125205
The subject matter of the present invention relates to the production of a solution of ferrous sulphate, in aqueous acid medium the raw material being the ash obtained in the production of sulphuric acid by means of roasting of pyrites. ...  
WO/2010/121329
An improved method for recovering refractory gold from a material comprising treating the material to at least partially remove nitric acid-insoluble lead moieties.  
WO/2010/121318
A method is disclosed for recovering precious metals from source materials containing precious metals which involves leaching the source material in aqueous reducing liquor to provide a treated solid residue and processing the treated re...  
WO/2010/121317
The invention involves a method for recovering gold from a gold concentrate comprising: dissolving gold from the concentrate in an aqueous liquor to provide a gold liquor; subjecting the gold liquor to electrolysis in an electrowinning c...  

Matches 401 - 450 out of 3,911