| Document |
Document Title |
|
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).
|
|
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...
|
|
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...
|
|
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.
|
|
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...
|
|
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...
|
|
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...
|
|
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...
|
|
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...
|
|
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 ...
|
|
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 ...
|
|
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...
|
|
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.
|
|
WO/2022/185862A1 |
Provided are a platinum-group metal recovery agent represented by general formula (1) and a platinum-group metal recovery method in which the platinum-group metal recovery agent is used to recover platinum or rhodium from a hydrochloric ...
|
|
WO/2022/182268A1 |
A method for extracting platinum and palladium from silver electrolytes envisages the dissolution of a starting material, the sorption extraction of platinum metals from the silver electrolyte using an anion exchange resin, and desorptio...
|
|
WO/2022/173335A1 |
A method for recovering gold from a solution containing impurities of platinum metals and non-precious metals relates to the hydrometallurgy of precious metals and can be used for obtaining gold in metal form. The technical result is ach...
|
|
WO/2022/173321A1 |
The proposed invention relates to the field of the hydrometallurgy of precious metals and can be used in processes for treating different types of concentrates containing precious metals, in particular ruthenium in the form of potassium ...
|
|
WO/2022/167167A1 |
The invention relates to a method for reductive extraction of elemental noble metals from an acidic aqueous solution containing noble metal, the method comprising the addition of non-noble metal including zinc and/or tin to the acidic aq...
|
|
WO/2022/168015A1 |
According to one aspect of the invention, there is provided a plant layout for extracting fine chrome from a PGM tails stream, typically after the PGM tails stream has undergone a desliming process to yield a fine fraction mineral slurry...
|
|
WO/2022/162252A1 |
The present method relates to a method for biological recovery of metals from electrical and electronic waste, comprising: a) inoculating a series of aerobic iron-oxidising microorganisms and a mineral medium or fertilisers into a column...
|
|
WO/2022/140770A1 |
Disclosed herein are compositions, methods, and systems for supramolecular gold stripping where the composition comprises a surface-bound, linear gold anion and a solution comprising a molecular receptor that facilitates the transfer of ...
|
|
WO/2022/138982A1 |
In a positive electrode for electrolytic plating, a titanium-iridium laminate is used. Therefore, it is desired to recovery a resource after disposal. However, these substances are extremely stable. Therefore, it is not easy to separate ...
|
|
WO/2022/134467A1 |
Disclosed is a method for treating a waste circuit board by means of a continuous copper smelting process. The method comprises the following steps: (1) pre-treating a waste circuit board; (2) batching and conveying; (3) side-blowing sme...
|
|
WO/2022/132061A1 |
The present invention relates to a method that enables co- recovery and selective separation of mercury (Hg) and gold (Au) from Au-Hg metal alloys available in the wastes formed after amalgamation, or in different AuxHgy forms that are n...
|
|
WO/2022/123438A1 |
The present invention discloses a process for recovering precious metals from electronic waste comprising the steps of cutting the terminals from the electronic waste involving metallic and non-metallic fractions using a mechanical proce...
|
|
WO/2022/125872A1 |
The present disclosure is related to the recovery of metal(s) using molten salt and related systems.
|
|
WO/2022/125547A1 |
Methods of recovering precious metals and/or lithium from unconventional feed water sources. In approaches, the methods use a combination of one or more of ultrafiltration, nanofiltration, and/or reverse osmosis membranes. The unconventi...
|
|
WO/2022/119501A1 |
The present invention relates to a composition comprising a first weak acid, an oxidant and a metal complexing agent, wherein the composition has a pH in the range of 2 to 4. The present invention also relates to a method of preparing su...
|
|
WO/2022/117530A1 |
Process for gold and/or platinum group metals heap leaching comprising irrigating a heap (1) with an irrigation solution (9, 10, 11 & 12) containing sodium cyanide for leaching gold and/or platinum group metals from said gold and/or plat...
|
|
WO/2022/109628A1 |
Systems and methods for plasma treatment to recover precious metals from tailings with enhanced leachability are described.
|
|
WO/2022/104427A1 |
A process for recovery of one or more target metals, selected from precious metals and chalcophile metals as respectively herein defined, from materials containing precious and/or chalcophile metal/s, said process including: (i) leaching...
|
|
WO/2022/097167A1 |
The present invention relates to a method for selectively precipitating and extracting gold in aqueous solution by niacin. Aqueous Au3+ is precipitated selectively as it's complex from gold containing acidic mixtures by biomolecule niaci...
|
|
WO/2022/087676A1 |
The invention provides a process for recovering precious metal from an aqueous solution comprising thiosulfate and at least one precious metal selected from gold and silver, the process comprising: introducing a soluble reducing agent to...
|
|
WO/2022/087656A1 |
The invention provides a process for removing cyanide from a cyanide-bearing aqueous fluid, the process comprising: (i) adding a solid composition comprising a first mixed-metal cyanide complex comprising copper and iron to a cyanide-bea...
|
|
WO/2022/084706A1 |
The application relates to the field of artisanal gold mining and provides a device and a process for distilling and condensing mercury.
|
|
WO/2022/081411A1 |
The present disclosure provides a method of recovering copper, molybdenum, and a precious metal value from a metal-bearing material, the method comprising bulk flotation of the metal-bearing material to form a flotation product, wherein ...
|
|
WO/2022/078667A1 |
The invention relates to a method for recovering noble metal from a heterogeneous catalytic converter comprising a solid supporting material and palladium, platinum or rhodium, present at least partially in elemental form, said method co...
|
|
WO/2022/079133A1 |
The invention relates to a method for purifying at least one fraction or compound of interest from a starting material comprising at least two inorganic compounds or at least one inorganic compound and at least one organic compound. The ...
|
|
WO/2022/082042A1 |
In described embodiments, a process for recovery of a metal from a grounded ore comprises leaching the grounded ore with a leaching reagent, an oxidant and an oxygen vector. In particular, a process for recovery of gold from a grounded g...
|
|
WO/2022/081413A1 |
The present disclosure provides a method of recovering copper, molybdenum, and a precious metal value from a metal-bearing material, the method comprising bulk flotation of the metal-bearing material to form a flotation product, wherein ...
|
|
WO/2022/067448A1 |
Solutions and methods for leaching coinage metals. For example, Solutions and methods for leaching copper and/or silver from a substance comprising copper and/or silver (such as a coinage metal-concentrate, or electronic waste) using a w...
|
|
WO/2022/071274A1 |
This method for eluting a valuable metal from a glass-containing electrode containing glass and a valuable metal insoluble in a hydrofluoric acid involves: immersing an object including the glass-containing electrode in a hydrofluoric ac...
|
|
WO/2022/071297A1 |
Provided is a method for eluting valuable metals from a glass-containing electrode that contains valuable metals and glass, wherein the method includes: a step for pulverizing an object that contains a glass-containing electrode; and a s...
|
|
WO/2022/063955A1 |
The invention relates to a process of heap leaching metal from a metal bearing ore comprising the steps: a) agglomerating the ore with an agglomeration agent to form an agglomerated ore, b) forming the agglomerated ore into a heap; and c...
|
|
WO/2022/067085A1 |
Ultrafast flash Joule heating synthesis method and system to form carbide particles from a mixture of a reaction precursor comprising a precursor and a carbon conductive additive.
|
|
WO/2022/062674A1 |
The present invention relates to the field of hydrometallurgy. Disclosed is a method for recycling gold from full-mud cyanide tailings, comprising the following steps: (1) performing pulping and screening on cyanide tailings to obtain a ...
|
|
WO/2022/049790A1 |
The present invention relates to a method for recovering gold, the method comprising a step for using a gold recovery agent to recover gold from a gold solution in which gold, iodine, an iodine salt, and a reducing agent are dissolved. T...
|
|
WO/2022/040334A1 |
A method, and systems in which such method may be practiced, allow for the separation of elemental metals from metal alloy. A metal alloy is atomized to form metal alloy particulates. The metal alloy particulates are exposed to an oxidiz...
|
|
WO/2022/038530A1 |
The present invention relates to the recovery of high value metals such as gold and silver from the ores containing them, by means of the leaching process which is carried out in tanks or reactors, and to the destruction of cyanide, whic...
|
|
WO/2022/033904A1 |
The present invention relates to lixiviant medium for extracting gold from a gold-containing solid material, which lixiviant medium comprises a polyether-modified siloxane and a non-ionic surfactant. The present invention also relates to...
|
