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WO/2023/199263A1 |
The invention relates to a process for the production of a leaching composition obtained from dairy product waste, more particularly the invention relates to a process for the treatment of raw dairy and dairy product waste with particula...
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WO/2023/190768A1 |
Provided is a method for recovering a platinum group element from a solution containing a platinum group element, the method using a capture agent to induce adsorption of the platinum group element by the capture agent. In this method, t...
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WO/2023/191722A1 |
The present invention relates to a composition comprising a strong base, an oxidant and a thiocyanate, wherein the composition has a pH in the range of 12 to 14. The present invention also relates to a method of preparing such a composit...
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WO/2023/186027A1 |
The present invention provides an environmentally friendly gold leaching method for gold ore containing carbon, sulfur and arsenic, and relates to the technical field of the metallurgical industry. The present invention utilizes fine gri...
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WO/2023/180673A1 |
The invention relates to a method for recovering indium contained in a substrate comprising an indium tin oxide film locally covered with a metal layer that is is made of silver or a platinum-group metal, the method comprising a dissolvi...
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WO/2023/175535A1 |
The present invention relates to a method and furnace for treating a catalyst made from Silicon Carbide (SiC) substrates, in particular an automotive catalyst containing a catalyst supported on a substrate made from or containing SiC. Th...
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WO/2023/173221A1 |
The present invention concerns new strains of cyanogenic bacteria, and more particularly alkali-tolerant Pseudomonas bacteria, that are useful to gold mining activities. These bacteria are useful to leach gold from any source including o...
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WO/2023/165766A1 |
A method for comminuting spent, catalyst-coated PEM membranes from PEM fuel cells and/or PEM electrolysis cells by means of a cutting mill.
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WO/2023/164504A1 |
The present invention relates to a method for recovering metals contained in electronic waste, in particular used electronic boards, as well as to a plant adapted to the implementation of this method while limiting energy consumption.
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WO/2023/161687A1 |
The present disclosure relates to a process for obtaining metallic gold particles from an aqueous solution comprising gold, wherein the process comprises a step of mixing the aqueous solution comprising gold with an aqueous extract obtai...
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WO/2023/156345A1 |
The present invention relates to the field of recovery of rare-earth metals, in particular to a process for the recovery of neodymium (Nd) from e-wastes from ceramic -based electronic components, in particular from waste printed circuit ...
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WO/2023/154976A1 |
According to the present invention there is provided a method for smelting a zinc sulfide concentrate, the method comprising the steps of: feeding the zinc sulfide concentrate to a reduction furnace at a known mass flow rate of sulfur; f...
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WO/2023/151602A1 |
Provided are a continuous copper smelting process and continuous copper smelting equipment for treating complex gold concentrate.
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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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