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Patent Searching and Data


Matches 701 - 750 out of 4,064

Document Document Title
WO/2009/003240A1
A method for controlling iron precipitation from acidic ferric sulphate leach solutions in leaching of chalcopyrite and/or pyrite, the method comprising the steps of: increasing the rate of formation of a ferric basic sulphate and/or pro...  
WO/2009/004321A3
A settler tank for a solution used as part of a process to extract metal from metal ore, the settler tank being dimensioned such that it may be transported by a conventional truck and trailer. A settler tank for an ore extraction process...  
WO/2009/004321A2
A settler tank for a solution used as part of a process to extract metal from metal ore, the settler tank being dimensioned such that it may be transported by a conventional truck and trailer. A settler tank for an ore extraction process...  
WO/2009/000037A1
A process for leaching an ore containing sulphidic copper-containing minerals is disclosed. The process includes carrying out an aerated oxidising leach of a part of the ore and causing reactions with a source of iron such as pyrite in t...  
WO/2009/001897A1
Disclosed is a novel separation reagent which has never exist before and can achieve a high extraction rate of rhodium in a chlorine-containing acid solution. Also disclosed is a method for the separation/collection of a platinum-group m...  
WO/2009/000051A1
A process for the recovery of magnesium from a solution containing soluble magnesium, the process comprising, precipitating magnesium hydroxide from the solution, forming an oxide blend including magnesium oxide derived from the precipit...  
WO/2008/141423A1
There are provided processes and compositions for extracting aluminum and/or iron ions from aluminous ores or a mixture. One process comprises recovering said aluminum ions from a composition comprising said aluminum ions, said iron ions...  
WO/2008/141443A1
A process for the extraction of a precious metal, such as gold or silver, from a sulphide ore or concentrate or other source material comprises subjecting the source material to pressure oxidation to produce a pressure oxidation slurry. ...  
WO/2008/139023A1
A pump comprising a body (1) that is a cylindrical vertical container (10), which is upwards open, its interior (2) being defined by a planar bottom (11) that comprises a central inlet (3), and by a first side wall (12) that comprises an...  
WO/2008/139430A2
The invention discloses a drainage system for an aerated heap leaching operation which comprises a layer of drainage rock (2) which includes a plurality of spaced apart substantially vertically orientated perforated tubes, preferably str...  
WO/2008/138038A1
A process for leaching nickel and/or cobalt containing laterite or partially oxidised laterite ore including the steps of : a) providing a laterite or partially oxidised laterite ore; b) leaching the ore in a leach step with an acid in t...  
WO/2008/139412A1
A method for producing a metal from a metal sulphide ore or mineral is claimed. The metal sulphide ore is leached by non-oxidative dissolution in a chloride solution to produce a metal chloride solution and hydrogen sulphide; the metal c...  
WO/2008/139430A3
The invention discloses a drainage system for an aerated heap leaching operation which comprises a layer of drainage rock (2) which includes a plurality of spaced apart substantially vertically orientated perforated tubes, preferably str...  
WO/2008/138039A1
A process for the recovery of nickel and/or cobalt from laterite or partially oxidised lateritic ores having a substantial proportion of the iron present in the ferrous state, said process including the steps of : a) providing a laterite...  
WO/2008/136542A1
Disclosed is a reactor for separating an aluminum layer from a multi-layer film wastes to reuse a multi-layer film waste without burying or incinerating the multi-layer film waste including the aluminum. The reactor comprises a cylindric...  
WO/2008/132830A1
Disclosed is a method for recovering a rare metal such as gallium or indium from a group III-V compound semiconductor or the like for recycling. Specifically disclosed is a method for recovering at least one metal selected from the group...  
WO/2008/128278A2
A method for the separation of nickel and iron from an acidic iron-containing nickel solution containing at least some dissolved iron in the ferric [Fe(III)] state comprises conducting a crude precipitation to precipitate some of the iro...  
WO/2008/128278A3
A method for the separation of nickel and iron from an acidic iron-containing nickel solution containing at least some dissolved iron in the ferric [Fe(III)] state comprises conducting a crude precipitation to precipitate some of the iro...  
WO/2008/124904A1
The present invention relates to a process which comprises the following stages: (a) beneficiation or preparation of ores containing nickel and/or cobalt and other base metals; (b) ore leaching: can be performed in various ways and combi...  
WO/2008/119317A1
The invention relates to a method for the production of a metal melt containing at least one base metal and at least one additional alloying component, wherein the production takes place in a smelting vessel with slag covering the melt. ...  
WO/2008/117649A1
A method of recovering a valuable metal from an oxide-based scrap, characterized by using an insoluble electrode as an anode, using the oxide-based scrap as a cathode, and conducting electrolysis to recover the cathode scrap in the form ...  
WO/2008/116122A1
Methods and systems for expanding mineral ore, including perlite, are disclosed. Microwave energy is generated and applied to at least one gas. The energized gas then contacts particles of at least one mineral ore, wherein the transfer o...  
WO/2008/101396A1
A preprocessing method of an organic extractant, the preprocessed product and the use thereof in rare earth extraction separation. The preprocessing method comprises that an organic extractant is mixed with a rare earth solution and powd...  
WO/2008/101305A1
The present invention relates to a method to extract out of an aqueous solution, concentrate and/or reformulate [18F] fluorides without any evaporation step, characterised in that the eluting solution is a low water content, preferably <...  
WO/2008/099681A1
Disclosed is a material which enables to efficiently recover metal ions such as silver ions. Also disclosed are a method for producing such a material, a method for adsorbing metal ions by using such a material, and a method for recoveri...  
WO/2008/090671A1
Disclosed are a method and an apparatus for the recovery of indium, which do not need for collecting indium in the form of indium hydroxide, can collect indium at a high concentration, have a good handling property during the collection,...  
WO/2008/090672A1
Disclosed are a method and an apparatus for the recovery of indium, which do not need for collecting indium in the form of indium hydroxide, have a good handling property during the collection, can collect indium readily by using a filte...  
WO/2008/081324A2
The present invention is directed to a precious metal recovery process in which basic ferric sulphates and/or jarosites are controlled by hot curing of the autoclave discharge slurry followed by decomposition of argentojarosite using str...  
WO/2008/080209A1
The present invention relates to a process for obtaining nickel, cobalt, and other metals from ores containing them, as well as from the product obtained at any of its stages, as follows: (a) preparation or pre-treatment of the ore for i...  
WO/2008/081324A3
The present invention is directed to a precious metal recovery process in which basic ferric sulphates and/or jarosites are controlled by hot curing of the autoclave discharge slurry followed by decomposition of argentojarosite using str...  
WO/2008/067594A1
Impurities are removed from bauxite by leaching a bauxite ore using a leach solution to dissolve impurities from the bauxite ore and form a pregnant leach solution containing the impurities in solution, removing the leached bauxite ore f...  
WO/2008/059439A1
A method of treating value bearing material comprising oxidised or surface oxidised mineral values includes the steps of crushing the value bearing material, contacting the crushed material! with a sulfide solution to sulfide the oxidise...  
WO/2008/055335A1
The process, according to the invention, comprises the following stages: (a) processing (1) of the laterite ore (O) by crushing, scrubbing, attrition, separation, and high-intensity magnetic separation; (b) Leaching (2) of the non-magnet...  
WO/2008/053616A1
A method for collecting a valuable metal from an indium-tin oxide (ITO) scrap, characterized by collecting metal indium by the electrolysis of the ITO scrap; a method comprising conducting the electrolysis of the ITO scrap in an electrol...  
WO/2008/054648A3
Provided is a method for the production of sulfuric acid through bio-oxidation. In one embodiment, the method for producing sulfuric acid includes the steps of: aggregating a solution, a sulfur, and a substrate material to form an aggreg...  
WO/2008/052324A1
A method for recovering zinc ions by selective sulfide precipitation from an aqueous solution comprising zinc ions and metal ions of a metal that precipitates as metal sulfide at a pH lower than a pH at which zinc ions precipitate as zin...  
WO/2008/053618A1
Disclosed is a method for collecting a valuable metal from an indium-tin oxide (ITO) scrap, characterized by conducting the electrolysis of the ITO scrap in an pH-adjusted electrolyte solution to collect indium or tin in the form of an o...  
WO/2008/049177A3
"Method for production of metallic cobalt from the raffinate from solvent extraction of nickel". Said method comprises the following stages: (A) obtaining the raffinate from solvent extraction of nickel, for production of cobalt; (B) add...  
WO/2008/046114A2
A microbial leaching process is carried out on a heap of particulate chalcopyrite ore by adding carbon dioxide to an air stream directed into the heap at least when the heap is at mesophilic temperatures, to stimulate growth, and to achi...  
WO/2008/046114A3
A microbial leaching process is carried out on a heap of particulate chalcopyrite ore by adding carbon dioxide to an air stream directed into the heap at least when the heap is at mesophilic temperatures, to stimulate growth, and to achi...  
WO/2008/038401A1
A process for producing an iron arsenide compound, comprising adding an oxidizer to an aqueous solution containing arsenide ions and ferrous ions wherein the arsenic concentration is 15 g/L or higher, agitating the solution so as to adva...  
WO/2008/034189A1
A method for recovering nickel, a nickel compound or a mixed nickel and cobalt compound comprising: (a) providing a nickel-containing leach solution in which nickel is dissolved in a solvent; (b) subjecting the leach solution to nano-fil...  
WO/2008/036816A3
The present invention is directed to the selective removal of ferric ion and/or ferric compounds from valuable metal recovery process streams.  
WO/2008/036985A3
A process of bioleaching a sulphide mineral slurry in a reactor which is controlled by varying the rate of supply of sparging gas to the reactor, and the energy supplied to a motor-driven agitator in the reactor, in response to the measu...  
WO/2008/034198A1
The present invention relates to a resin which is a copolymer of a polystyrene and a non-styrenic polymer, wherein the non-styrenic polymer includes the following subunit: Formula (I) wherein Rb is a divalent linking group, preferably al...  
WO/2008/034188A1
A method for producing a feed material for a leaching process comprises the steps of mixing ore or concentrate particles with water and optionally other additives, the particles including relatively fine particles and relatively coarse p...  
WO/2008/036985A2
A process of bioleaching a sulphide mineral slurry in a reactor which is controlled by varying the rate of supply of sparging gas to the reactor, and the energy supplied to a motor-driven agitator in the reactor, in response to the measu...  
WO/2008/032288A3
The invention relates to a process for the pre-treatment of feed to a non-stirred surface heap leach bioreactor by applying in sequence first and second pre-treatment solutions to a feed to a non-stirred surface heap leach bioreactor, in...  
WO/2008/032288A2
The invention relates to a process for the pre-treatment of feed to a non-stirred surface heap leach bioreactor by applying in sequence first and second pre-treatment solutions to a feed to a non-stirred surface heap leach bioreactor, in...  
WO/2008/031203A1
Nickel entrained in the sulphide mineral pyrrhotite is engineered to dissolve in leaching acid in a two step procedure. First, a slurry of the mineral and the acid is activated by oxidation. This is done in a time Tl by electrolysis; or ...  

Matches 701 - 750 out of 4,064