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WO/2023/153291A1 |
This invention relates to a noble metal recovery agent comprising coffee fruit as an active ingredient.
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WO/2023/147804A1 |
The present invention relates to a method of physical and energetic utilization of silicon components that are obtained in electrical scrap recycling. In order to create a recycling method which is effective in terms of time, plant techn...
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WO/2023/149153A1 |
The present invention provides a platinum-group metal recovery agent that is represented by general formula (1) and a platinum-group metal recovery method that involves using the platinum-group metal recovery agent to recover platinum fr...
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WO/2023/141456A1 |
Bioleaching compositions for processing ores or other matter including metal or metal salt are presented, where the bioleaching composition includes a biosurfactant and metal solubilizing reagents. The biosurfactant can be a sophorolipid...
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WO/2023/119017A1 |
This invention describes a hydrometallurgical process for extracting and recovering valuable metals contained within metalliferous minerals including ores, concentrates and other materials and generation of useful by-products including s...
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WO/2023/115152A1 |
An apparatus for changing one or more physical properties of a material is disclosed. The apparatus comprises first and second grinding surfaces movable relative to one another, the first and second grinding surfaces being spaced apart b...
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WO/2023/108226A1 |
A method of recovering free milling gold from a gold-containing feed material that includes processing at least a part of a tailings stream from a flotation element in a size separation element and producing a fines stream and a coarse s...
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WO/2023/106244A1 |
The present disclosure provides a platinum group element resource recovery device. This is a device for recovering a platinum group element resource and has: a recovery section that receives an input gas containing a platinum group eleme...
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WO/2023/102570A1 |
A method and system for converting copper cyanide to copper oxide is provided. The method includes contacting a copper cyanide solution with an acidic solution in a precipitation tank under reaction conditions sufficient to produce a cop...
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WO/2023/097923A1 |
A low-cost reducing agent for selective precipitation of noble metal ions, relating to the technical field of waste resource recycling. According to the present invention, noble metal (gold, platinum, and palladium) ions in a solution co...
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WO/2023/097924A1 |
A low-cost and high-efficiency method for recovering precious metals from circuit board components, which method belongs to the technical field of waste resource recovery. The method mainly solves the problem of selective recovery of pre...
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WO/2023/099076A1 |
The invention relates to a method for separating rhodium from an aqueous hydrochloric solution which contains at least one chloro complex of rhodium and at least one chloro complex of iridium and/or at least one chloro complex of rutheni...
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WO/2023/092480A1 |
Disclosed is a method for extracting nickel sulfate from nickel matte. The method comprises the steps of: slurrying a treated nickel matte by means of using a pressurized leaching post-liquid, which is produced by a back-end process; the...
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WO/2023/094835A1 |
The present invention relates to the field of chemistry, in particular the field of acids, and methods and processes relating to increasing the concentration, and decreasing the pH, of green organic acids (and thereby increasing their le...
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WO/2023/089234A1 |
The present invention relates to a process for recovering zinc and iron products from zinc- containing waste materials obtained from the zinc or steel industry, or both, by first treating the waste material(s) with strong acid, to conver...
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WO/2023/086718A1 |
The present disclosure relates to processes for recovering rhodium from a hydroformylation process. In one aspect, a tails stream from a product-catalyst separation zone is provided to at least one organic solvent nanofiltration separati...
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WO/2023/084471A1 |
A chemical-free gold extraction system has gold-containing ore crushing means, ore grinding means, a first gravimetric separator (10) and a second gravimetric separator (16) to provide, respectively, a first gold concentrate (C1) and a s...
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WO/2023/065044A1 |
A recyclable, non-toxic solvent media and methods for precious metal leaching and extraction, in particular platinum group metals (PGMs), are described. The solvent media comprises 3-methoxy-3-methyl-1-butanol (MMB), an oxidizing agent s...
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WO/2023/057154A1 |
The invention relates to a ball mill (10), comprising at least one first electrode (50, 51), at least one second electrode (60, 61) which is arranged in an interior space (14) of the ball mill (10), and a plurality of electrically conduc...
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WO/2023/057754A1 |
Disclosed herein is a method of extracting lithium from a lithium bearing material comprising the steps of: a) providing an aqueous oxidant mixture comprising water, an oxidising means, and a source of halide ion; b) contacting the aqueo...
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WO/2023/041890A1 |
A method of recycling one or more valuable metal elements from a source material comprising the one or more valuable metal elements, the method comprising: forming an acidic aqueous recycling feed by acid leaching the source material or ...
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WO/2023/032815A1 |
This metal recovery material includes cyanobacteria of genus Leptolyngbya.
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WO/2023/032811A1 |
This method for recovering a metal from a metal element-containing substance comprises: a step in which a solution containing metal ions or metal complex ions is obtained by bringing a dissolution liquid that contains nitric acid and a s...
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WO/2022/067111A9 |
Ultrafast flash Joule heating synthesis methods and systems, and more particularly, ultrafast synthesis methods to recover metal from ores, fly ash, and bauxite residue (red mud).
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WO/2023/026041A1 |
Disclosed herein are methods of purifying precious metal from a precious metal- bearing material comprising the steps of: a) forming an aqueous acidic oxidant mixture from an oxidant, an acid, and a source of bromide ion, said aqueous ac...
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WO/2023/026025A1 |
The present invention relates to a treatment process for treating an aqueous effluent from a platinum group metal (PGM) refining process, the treatment process comprising supplying the effluent to a medium, the medium comprising a popula...
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WO/2023/013665A1 |
Provided are: a gold ore pretreatment method capable of facilitating recovery of gold even when a gold ore contains a sulfide or a carbonaceous component; and a gold recovery method exhibiting a high gold recovery rate. The pretreatment ...
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WO/2023/008588A1 |
The present disclosure addresses the problem of providing a method for recovering rhodium at a high recovery rate from a rhodium-containing plating solution. This method for recovering rhodium from a rhodium-containing plating solution...
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WO/2023/007127A1 |
A method of separating a metal from a solution comprises adding to the solution a compound having a structure represented by Formula (I): wherein: R1, R2, R3 and R4 are each independently a substituted or unsubstituted aryl group or a su...
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WO/2023/004476A1 |
According to the present invention there is provided a method for treating a zinc leach residue comprising the steps of: adding the zinc leach residue and a sulfide material comprising copper and flux to a furnace having a molten bath th...
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WO/2023/004465A1 |
A method of leaching a gold/copper-containing sulfidic mined material that includes two leach stages, with a gold leach stage leaching gold from the material with a gold leach liquor and a copper leach stage leaching copper from the mate...
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WO/2023/001604A1 |
Disclosed is a process for decomposing SiC or SiC-containing materials, wherein the reaction is carried out using exclusively gaseous products in order to achieve as complete a conversion as possible. A preferred embodiment relates to a ...
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WO/2023/283700A1 |
A gold-copper recovery circuit (10) comprises an adsorption circuit (20); and an elution circuit (30) in which the adsorption circuit (20) receives a slurry (22) containing gold and copper in a cyanide solution; and a resin adsorbent (10...
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WO/2023/285168A1 |
The invention relates to a method for electrolytically obtaining at least one metal. The method comprises providing (61) an aqueous solution (10) of the metal, suspended in which are particles (20) the density of which is greater than th...
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WO/2023/286850A1 |
Provided is a metal recovering method that has a low environmental load and that can efficiently achieve recovery of metal at a low cost. A metal recovering method comprising: an adsorption step for mixing yeast with a liquid containing ...
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WO/2022/067102A9 |
Ultrafast flash Joule heating synthesis methods and system to form corundum nanoparticles and their ultrafast sintering.
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WO/2023/276710A1 |
Provided is a noble metal particle recovery kit which can be used repeatedly and which can recover, through a simple method, noble metal particles from a solution in which noble metals have been dissolved. The noble metal particle reco...
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WO/2022/067093A9 |
Ultrafast flash Joule heating synthesis methods and systems, and more particularly, ultrafast synthesis methods to recover precious metals recovery and other metals from electronic waste (e-waste).
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WO/2022/261693A1 |
Processing of refractory (gold) ore. Treatment of mineral bearing material incudes reacting an oxidant and the mineral bearing material, recovering at least a portion of the oxidant and subsequently introducing part of the at least a por...
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WO/2022/236956A1 |
A preparation method for a gold/silver extraction agent, comprising the following steps: (1) selecting a cyanate and a ferrous salt as raw materials, and well mixing the cyanate and the ferrous salt; (2) putting the well mixed raw materi...
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WO/2022/235356A1 |
A method for extracting noble metals from mining tailings and other solids is provided. The method uses a Lewis acid, Brønsted acid, complexing agent and oxygen to provide excellent extraction without the need for chorine gas or cyanide.
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WO/2022/230709A1 |
The present invention pertains to a method for recovering at least one kind of metal selected from the group consisting of gold (Au) and palladium (Pd), said method comprising an addition step of adding a metal absorbent to a solution co...
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WO/2022/217350A1 |
A process for helping improve hydrometallurgical precious metal recovery from preg-robbing ores or concentrates, such as double refractory ores or concentrates or carbonaceous ores. The process comprises treating the ore or concentrate i...
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WO/2022/219247A1 |
The present invention relates to hydrometallurgical methods for recovering metals from sulfide minerals. The present invention also relates to a use of a pregnant leach solution in a hydrometallurgical process for oxidizing and/or dissol...
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WO/2022/217353A1 |
A method of extracting precious metal values from a starting material using thiosulphate as a lixiviant. The precious metal values can be recovered from solution using a reductant. The reductant may be a naturally occurring ore including...
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WO/2022/215587A1 |
The present invention provides a method for recovering palladium which makes it possible to selectively and efficiently recover palladium from a palladium-containing liquid. Provided is a method for recovering palladium wherein a palladi...
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WO/2022/207621A1 |
The present invention relates to a process for recovering platinum group metals from a feed containing one or more precursor compounds of one or more platinum group metal ions, wherein the process comprises the steps of (i) supplying to ...
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WO/2022/202738A1 |
Provided are a noble metal adsorbent which enables easy recovery of a noble metal while achieving a high adsorption capacity with respect to a noble metal, a noble metal recovery method, and a noble metal adsorbent recycling method. A ...
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WO/2022/190153A1 |
The present invention concerns a method for the treatment of jarosite and other residues (1) of the zinc and lead production industry, including the following steps: thermal treatment (10) of the residues (1), at a temperature between 50...
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WO/2022/183256A1 |
A process and a plant for recovering valuable material in the form of gold and/or copper from sulphide ore systems that includes an Accurate Rock Breakage System ("ARBS") circuit.
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