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Matches 701 - 750 out of 4,037

Document Document Title
WO/2008/138038
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/2008/139412
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/2008/139430
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/2008/138039
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/2008/136542
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/2008/132830
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/2008/128278
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/2008/128278
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/2008/124904
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/2008/119317
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/2008/117649
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/2008/116122
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/2008/101396
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/2008/101305
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/2008/099681
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/2008/090671
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/2008/090672
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/2008/081324
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/2008/080209
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/2008/081324
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/2008/067594
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/2008/059439
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/2008/055335
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/2008/053616
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/2008/054648
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/2008/052324
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/2008/053618
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/2008/049177
"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/2008/046114
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/2008/046114
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/2008/038401
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/2008/034189
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/2008/036816
The present invention is directed to the selective removal of ferric ion and/or ferric compounds from valuable metal recovery process streams.  
WO/2008/036985
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/2008/034198
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/2008/034188
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/2008/036985
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/2008/032288
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/2008/032288
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/2008/031203
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 ...  
WO/2008/028245
A sulfate process for producing titania from a titaniferous material (such as an iron-containing titaniferous material; such as ilmenite) is disclosed. The process includes precipitating titanyl sulfate from a process solution produced i...  
WO/2008/028664
The present application is directed to a method for the purification of Radium, in particular 226Ra1 for target preparation for an essentially pure 225Ac production from available radioactive sources, using an extraction chromatography i...  
WO/2008/028244
A sulfate process for producing titania from a titaniferous material (such as an iron-containing titaniferous material such as ilmenite) is disclosed. The process includes digestion and/or leach steps that form a process solution that in...  
WO/2008/022381
A process for producing a metallic nickel product with a low iron content, including the steps of: (i) providing an acidic product liquor containing at least nickel and iron; (ii) subjecting said acidic product liquor to an ion exchange ...  
WO/2008/022395
An improved hydrometallurgical method (10) for the extraction of nickel from laterite ores, the method comprising the method steps of: i) Forming at least one primary heap (20) from nickel laterite ore material; ii) Leaching the primary ...  
WO/2008/021684
A precursor halide compound is reduced to a predetermined product at substantially ambient conditions. The halide is added to an anhydrous liquid reaction medium containing one or more alkali metals or alkaline earth metals as reductants...  
WO/2008/019633
This invention relates to non-ferrous hydrometallurgy and, in particular, to the thickening of aqueous lateritic-ore pulps in pressurized acid technology. A novel process has been developed with a view to increasing the percentage of sol...  
WO/2008/021683
A titanium halide and, optionally, other precursor halides compound are reduced to a predetermined titanium product, suitably at or near ambient conditions. Titanium tetrachloride, for example, is added to an anhydrous liquid reaction me...  
WO/2008/015582
The addition of a compatible metal salt crystal to the organic solution entering the mixer(s) in the solvent extraction stage(s) and/or the stripping stage(s), or to the emulsion mixture of the organic solution and the aqueous solution i...  
WO/2008/015582
The addition of a compatible metal salt crystal to the organic solution entering the mixer(s) in the solvent extraction stage(s) and/or the stripping stage(s), or to the emulsion mixture of the organic solution and the aqueous solution i...  

Matches 701 - 750 out of 4,037