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Matches 201 - 250 out of 3,804

Document Document Title
WO/2012/108522A1
Provided is a method for recovering PGM from a material to be processed that contains PGM. Specifically provided is a method for recovering PGM from a material to be processed that contains PGM, which comprises: a reduction smelting step...  
WO/2012/104806A1
This invention relates to a process in which a Platinum Group Metal (PGM)-rich residue from a BMR (Base Metals Refinery) process is subjected to a high temperature roast to remove contaminants, typically volatile elements (for example Se...  
WO/2012/099009A1
Provided is a method for suppressing distribution of PGM to Cu2O slag in oxidation smelting in a method for recovering PGM. Specifically provided is a method for recovering PGM, which comprises: a reduction smelting step wherein a member...  
WO/2012/091125A1
Provided are a method for collecting precious metals from a solution containing precious metal ions, an extractant or adsorbent used therefor, and a back extractant or a desorbent. Precious metals are obtained by subjecting a solution co...  
WO/2012/079129A1
Disclosed is a process for extracting gold ions from an aqueous phase containing gold ions. The process comprises contacting the aqueous phase with an extractant phase consisting of or comprising an ionic liquid (IL) under liquid-liquid ...  
WO/2012/080558A1
The present invention concerns a process and a plant for treating ore concentrate particles containing valuable metal and having at least arsenic and sulfur containing components. The process comprises a two-stage roasting process compri...  
WO/2012/079283A1
Disclosed are a mineral-dressing agent for noble metals and preparation method thereof. The method comprises introducing mixed potassium ferrocyanide and urea into a reactor, adding pH adjusting agent while being subjected to slow heatin...  
WO/2012/078768A1
A washer for a particulate material comprises, in accordance with some embodiments of the invention, a chamber 20, 220 adapted for retaining a fluidization medium 130; an inlet 22, 222 adapted for receiving a feed containing particulate ...  
WO/2012/078274A2
Nanomaterial preparation methods, compositions, and articles are disclosed and claimed. Such methods can provide nanomaterials with improved morphologies relative to previous methods. Such materials are useful in electronic applications.  
WO/2012/076981A1
A method and system are provided in which a gold and/or silver-collecting resin-in-leach or resin-in-pulp circuit comprises both co-current and counter-current sections, specifically in thiosulfate leach systems.  
WO/2012/078283A2
Nanomaterial preparation methods, compositions, and articles are disclosed and claimed. Such methods can provide nanomaterials with improved morphologies relative to previous methods. Such materials are useful in electronic applications.  
WO/2012/078275A2
Nanomaterial preparation methods, compositions, and articles are disclosed and claimed. Such methods can provide nanomaterials with improved morphologies and reduced nitric oxide co-production relative to previous methods. Such materials...  
WO/2012/078020A3
A method for leaching valuable metals from ore or one or more minerals that do not oxidise easily and can be reduced, comprises reducing the ore or one or more minerals in contact with an acid medium with complexing agents for sulphur an...  
WO/2012/074255A2
The present invention pertains to an apparatus for recovering precious metals and components from a PCB substrate, in which the apparatus comprises: a rotating unit which includes a PCB substrate fixed to the rotating unit with electroni...  
WO/2012/074255A3
The present invention pertains to an apparatus for recovering precious metals and components from a PCB substrate, in which the apparatus comprises: a rotating unit which includes a PCB substrate fixed to the rotating unit with electroni...  
WO/2012/071342A2
The present invention is directed to a precious metal recovery process in which an acid sulfidic feed material is subjected to acid pressure oxidation and an alkaline sulfidic feed material is subjected to alkaline pressure oxidation, wi...  
WO/2012/071342A3
The present invention is directed to a precious metal recovery process in which an acid sulfidic feed material is subjected to acid pressure oxidation and an alkaline sulfidic feed material is subjected to alkaline pressure oxidation, wi...  
WO/2012/060417A1
Provided are: a capsule for non-ferrous metal collection that can collect a non-ferrous metal; and a method for collecting a non-ferrous metal using same. The capsule for non-ferrous metal collection comprises capsule contents and a cove...  
WO/2012/053915A1
The present invention relates to a process of gold and copper recovery from gold-containing copper ores obtained from mixed oxide-sulfide copper ore bodies by a series of flotation stages. More specifically, the present invention relates...  
WO/2012/034255A1
A method for extracting gold coated by gangue comprises the following steps: grinding and classifying gold ore to obtain ore pulp; oxidizing and decomposing sulphide minerals and gangue in the ore pulp to fully expose and dissociate gold...  
WO/2012/031379A1
A method for extracting gold through low-temperature roasting is provided. The method includes the following steps: feeding the material to be roasted into a roasting furnace through feeder, uniformly supplying gas for the material layer...  
WO/2012/029379A1
A high purity platinum recovery method for obtaining a platinum sponge by dissolving a platinum alloy containing ruthenium in aqua regia, removing the residue and then reacting the acid wherein platinum is dissolved and an ammonium chlor...  
WO/2012/031194A3
Methods and compositions are described for preparing metal salts and selectively separating metals from substrates and other metals. The methods can include a thionyl reagent that reacts with a metal in a solution to produce a metal salt...  
WO/2012/024603A3
Processes for recycling electronic components removed from printed wire boards, whereby precious metals and base metals are extracted from the electronic components using environmentally friendly compositions. At least gold, silver and c...  
WO/2012/024603A2
Processes for recycling electronic components removed from printed wire boards, whereby precious metals and base metals are extracted from the electronic components using environmentally friendly compositions. At least gold, silver and c...  
WO/2012/012011A1
A process for the recovery of metals (hereinafter PM) from solids includes dissolving the PM and base metals in acid. The PM are precipitated using substituted quaternary ammonium salts (hereinafter SQAS). The PM may be oxidized or reduc...  
WO/2012/008453A1
Disclosed is a rotary kiln provided with a rotary furnace in which an object to be treated containing a metal is burnt, an electric furnace which is connected to the rotary furnace via a connecting portion and which separates the metal f...  
WO/2011/160179A1
A method (10) for the pretreatment and separation of metals from cyanide containing solutions, the method characterised by the step of: directing a feed stream (12) containing cyanide, particulate matter and metal values to a pre-treatme...  
WO/2011/161597A1
A process for upgrading a precious metals-containing concentrate or residue results in near-quantitave removal of base metals and several impurity elements at elevated temperatures. The precious metals- containing concentrate or residue ...  
WO/2011/156861A1
A method of recovering a metal, such as a noble metal, from an impure source material by contacting the source material with a leach solution comprising a metal halide, an oxidant and an acid. The leach solution containing the target met...  
WO/2011/154607A1
A process for recovering gold from gold-bearing raw material is provided. The method comprises a step of leaching the raw material in leach solution comprising thiosulphate anions and trace amount of thallium ions.  
WO/2011/154603A1
The invention relates to a method for recovering gold by solvent extraction from an acidic chloride-containing aqueous solution or from slurry containing gold-bearing solids using a diester-based reagent that is poorly soluble in water a...  
WO/2011/150984A1
Method for the recovery of noble metals comprising the steps of subjecting ore particles to an electrolytic bath (1) enhanced by an ultrasonic bath (2), the electrolytic bath (1) comprising heavy and/or semi-heavy water; shock heating th...  
WO/2011/147151A1
A method for non-cyanide recycling waste circuit board (1), comprises the following steps: mechanical crushing (2) waste circuit board (1), separating crude copper powder (4) from nonmetal powder through gravity separation (3), smelting ...  
WO/2011/145760A1
In the circulation of electrolyte in a vertical-cylinder-type electrolyzer having a three-dimensional filling cathode made of active carbon granules and a fixed granular catalyst layer, the leaching and precipitation of a precious metal ...  
WO/2011/140593A1
There is provided a process for extracting platinum group metals from a platinum group metal-containing material, in particular spent automotive catalyst. The process involves roasting said material under oxidative conditions and further...  
WO/2011/139436A1
A system for processing ores is provided. The system includes a bubble collapse mill and a control system that interacts with an external system to evaluate and manipulate the processing of an ore.  
WO/2011/135184A1
A method for recovering valuable metals, such as lead, silver and gold from the residue of an electrolytic zinc process, wherein the residue from the zinc process is suspended and sulfidized for converting the lead and silver compounds i...  
WO/2011/135991A1
Disclosed is a valuable metal recovery method that has excellent valuable metal selectivity and recovery efficiency, and furthermore is capable of reusing materials that were used in the recovery of a valuable metal. The valuable metal r...  
WO/2011/132740A1
Disclosed is a system and method for recycling rare metals, which separates and collects rare metals by making use of chemical actions in an efficient combination of adsorption and separation, thereby reducing work load and improving wor...  
WO/2011/130790A1
A method of smelting a gold rich source material in a crucible comprising: i) adding a fluxing agent to the crucible; ii) heating the fluxing agent in the crucible to provide an initial molten fluid pool of fluxing agent in the crucible;...  
WO/2011/128061A1
The invention relates to a treatment and use involving a metal scavenger, such as functionalised organic or inorganic material, and a process to selectively remove specific metal ions and complexes from a stream containing a range of met...  
WO/2011/100821A1
The present invention relates to a process and system for recovery of gold from an ore comprising the steps of i) providing the ore containing the gold to be recovered, ii) leaching the ore in an oxidative chloride medium, comprising a n...  
WO/2011/090102A1
Disclosed is a means for efficiently collecting a platinum-group element by efficiently enriching the platinum-group element in a molten copper phase produced from a copper-iron scrap containing the platinum-group element. Specifically d...  
WO/2011/091231A1
A mineral processing facility is provided that includes a cogen plant to provide electrical energy and waste heat to the facility and an electrochemical acid generation plant to generate, from a salt, a mineral acid for use in recovering...  
WO/2011/056576A3
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/2011/056548A3
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/2011/021696A1
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/2011/010289A2
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/2011/010289A3
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...  

Matches 201 - 250 out of 3,804