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WO/2015/083233A1 |
[Problem] To collect palladium from a palladium-containing liquid waste containing an inorganic sulfur oxide such as sodium sulfite at a high collection rate and with high efficiency without requiring the employment of a complicated proc...
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WO/2015/072338A1 |
In the present invention, for useful objects that are electronic devices or electronic device components containing specified reusable substances, a useful object library is prepared that has a data structure associating, for each useful...
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WO/2015/058257A1 |
ABSTRACT A method for treating a mineral composition containing iron, arsenic or other Group VA compounds comprises milling the mineral composition to a particle size of P80 of less than 25 µm and leaching the mineral composition in the...
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WO/2015/060367A1 |
A separating agent which can selectively separate and recover platinum group metal ions from a solution containing multiple kinds of metal ions, and a separation method of platinum group metal ions are provided. This platinum group metal...
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WO/2015/056159A1 |
Liquid treatment apparatus comprises at least two chambers being first and second chambers through which a fluid can flow. The two chambers are separated by at least one choke nozzle which has an entrance in the first chamber and an exit...
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WO/2015/049959A1 |
The present invention provides a method for efficiently producing composite noble metal nanoparticles by means of a process that is low-energy, has a low environmental impact, and is simple. The method for producing composite noble metal...
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WO/2015/031943A1 |
A process for recovery of metal comprising copper and/or a precious metal from a metal containing material, including the steps of: leaching the metal containing material with an alkaline lixiviant and an amino acid or derivative thereof...
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WO/2015/030243A1 |
This invention pertains to the following: a recovery composition that contains ruthenium, iridium, and iron, with the ruthenium content and the iridium content satisfying relation (1); and a method in which said composition is used to re...
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WO/2015/026061A1 |
Disclosed is an integrated electrolysis leaching device for leaching a refractory rare metal. The integrated electrolysis leaching device for leaching a refractory rare metal is characterized by comprising: a reactor containing an electr...
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WO/2015/016102A1 |
Provided are an adsorption filter that can absorb and recover metal ions and the like efficiently and a method for manufacturing the same. The adsorption filter is constituted of graft copolymer particles into which an adsorption group h...
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WO/2015/016103A1 |
Provided are: an adsorbent material able to efficiently adsorb an adsorption subject such as a metal ion; and a method for producing such an adsorbent material. The adsorbent material is such that an ethylene-vinyl alcohol copolymer is t...
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WO/2015/016732A1 |
The invention relates to non-ferrous metallurgy and to the metallurgy of precious metals, in particular, to the separation technology for gold-silver alloys and mixtures using the vacuum distillation method, for producing high purity met...
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WO/2015/013147A1 |
The invention provides methods, compositions, and apparatuses for preventing the formation of scale in heap leach process solution distribution systems comprised of piping, spray nozzels, or emitter tubes. Solution distribution system co...
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WO/2015/010754A1 |
The process serves for utilization of metal-containing waste materials. To develop a process which permits the controlled reaction of metals with water to produce hydrogen in such a way that the hydrogen can be utilized in a simple and s...
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WO/2015/006861A1 |
The value-minerals are captured by gravity-separation, from a low-grade slurry. The ratio of liquids-to-solids in the slurry affects the efficiency of capture, and an ideal liquids/solids ratio is the ratio at which the efficiency of cap...
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WO/2015/006850A1 |
A method for recovering precious metal from an acidic pregnant solution resulting from halogen or hypohalite leaching of an ore, comprising lowering the ORP of the pregnant leachate with a reducing agent in the presence of slurried non-c...
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WO/2014/203895A1 |
Provided is a method for efficiently recovering various types of metal, including rare metals, noble metals and other metals, from waste electronic substrates. This method of recovering metal from waste electronic substrates involves: a ...
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WO/2014/191833A1 |
The disclosure relates to the oxidation and immobilization of trivalent arsenic from arsenic-containing solutions. The process includes oxidation of trivalent arsenic (As3+) species to the pentavalent state (As5+). A carbon additive (e.g...
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WO/2014/191832A1 |
The disclosure relates to pre-treatment of precious metal-bearing oxide ores, prior to precious metal leaching by thiosulfate. The process comprises mixing oxide ore in oxygenated water in the presence of a carbon-based material (e.g., a...
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WO/2014/190434A1 |
A method for purification and separation of mixed elements, comprising at least a first free flow electrophoresis separation chamber, wherein a solution of the mixed elements is passed through the first separation chamber, an electric fi...
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WO/2014/193751A1 |
An apparatus and/or system and method for recycling vent gas from an autoclave (103) is disclosed including cooling and cleaning a vent gas, introducing the cooled and cleaned resultant stream into a purification unit (109) to remove at ...
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WO/2014/183807A1 |
The invention relates to a method and a recovery system for obtaining raw materials from ores and/or ore tailings, in particular a method and a recovery system for recovering metals from ores and/or ore tailings, especially a method and ...
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WO/2014/183808A1 |
The invention relates to a method and a recovery system for obtaining/recovering metallic iron and/or iron compounds, in particular iron chloride, from ores and/or ore tailings, especially from pyrite tailings, preferably from roasted py...
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WO/2014/177765A1 |
The invention relates to a method for preparing a gold- containing solution by chloride leaching from gold-bearing raw materials. A further object of the invention is to provide a method for recovering gold and optionally silver from the...
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WO/2014/178586A1 |
The present invention relates to a method for recovering an acid and a platinum group metal from a leaching solution of a waste catalyst and, more particularly, to a method for recovering an acid and a platinum group metal from a leachin...
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WO/2014/175218A1 |
The present invention provides a method for collecting a valuable metal, which enables a medium- to high-concentration cyan waste fluid to be treated at low cost and in a simple manner, and also enables a so-called valuable metal, e.g., ...
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WO/2014/171370A1 |
The present invention extracts precious metals from an acidic solution containing precious metals in an early and highly efficient manner. Provided is an extraction agent for precious metals that is represented by the general formula bel...
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WO/2014/170676A1 |
The present invention relates to a process for treating an off-gas from the thermal processing of a precious-metal-containing feedstock, the process comprising: cooling the off-gas to a temperature of from 300 to 500ËšC, passing the cool...
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WO/2014/172667A1 |
Methods for recovering gold from gold-bearing materials are provided. The methods rely upon on the self-assembly of KAuBr4 and α-cyclodextrin (α-CD) in aqueous solution to form a co- precipitate, a 1 :2 complex, KAuBr4•(a-CD)2 ("αâ€...
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WO/2014/170727A1 |
A self-contained assay facility housed in a fixed-wing or rotary wing aircraft that is completely equipped to melt and assay precious metals, particularly gold and silver. An induction furnace melts the metal that is then poured into an ...
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WO/2014/169325A1 |
A process for recovering copper, uranium and one or more precious metals from an ore material, including: a. forming a heap of the ore material; b. subjecting the heap of the ore material to an acidic heap leach using an iron containing ...
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WO/2014/170448A1 |
A process for recovery of precious metals from ores or concentrates containing refractory carbonaceous material by cyanidation leaching. The process involves addition to the ores or concentrates at least one cationic surfactant before or...
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WO/2014/166494A1 |
A method for recovering platinum group metals from a catalytic structure, such as a fuel cell membrane electrode assembly, involving dissolution of the platinum group metal by treating the catalytic structure in an electrolytic cell with...
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WO/2014/168749A1 |
Recovering gold from gold-loaded fine carbon by application of thermo-kinetic chemical activation regime at a low temperature, while preventing vitrification of imputies found in the gold-loaded fine carbon.
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WO/2014/156351A1 |
This method for recovering gold from gold ore containing pyrite comprises: a pretreatment step which includes a first step in which gold ore containing pyrite is prepared and a second step in which the gold ore is heated to a temperature...
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WO/2014/156349A1 |
This method for recovering gold from sulfide ore comprises: a first step in which a first acidic solution containing chlorine ions, copper ions, and iron ions but not containing bromine ions is brought into contact with a sulfide ore whi...
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WO/2014/155753A1 |
Provided is a method for pretreatment of gold ore in order to leach out gold from gold ore containing pyrite, with which it is possible to suppress the generation of sulfide dioxide and to improve the leaching rate of gold. A method for ...
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WO/2014/154945A1 |
In a method for recovering PGMs and ferrochrome from platinum group metals bearing chromite ore, a concentrate is prepared that contains most of PGMs and chromite of the ore and the concentrate is subjected to a heating step to dry and/o...
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WO/2014/156350A1 |
This method for recovering gold from sulfide ore comprises: a first step in which sulfide ore or leach reside remaining after sulfide ore has been subjected to leaching is brought into contact with an acidic aqueous solution containing c...
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WO/2014/155752A1 |
Provided is a method for pretreatment of gold ore in order to leach out gold from gold ore containing pyrite using wet treatment, and with which it is possible to suppress the generation of sulfur dioxide and to improve the leaching spee...
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WO/2014/156300A1 |
[Problem] To provide a simple, economic, and environment-friendly precious metal recovery method for recovering a precious metal from a used electronic device or the like. [Solution] A precious metal recovery method characterized in incl...
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WO/2014/153672A1 |
Described is a method of recovering a metal from a substrate having a metal sulphide, metal oxide, or combination thereof, by contacting the substrate with an aqueous oxidant to oxidize the metal sulphide to elemental sulphur and oxidize...
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WO/2014/148608A1 |
Provided are: a composition which exhibits low swelling properties, which comprises a hydrophilic polymer composition including an amine-based polymer, and which is stable in a wet state when packed into a column; a filter including the ...
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WO/2014/144805A1 |
A process for refining platinum group metals (PGM) first removes concentrations of base metals (BM) from the PGM through precipitation of the BM by increasing alkalinity in the dissolving aqueous solution. A large fraction of the aqueous...
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WO/2014/132419A1 |
In order to adsorb gold contained in metal sulfide ores on activated carbon with good efficiency, and to efficiently elute gold and silver adsorbed on the activated carbon, this method for eluting gold and silver is provided with: a step...
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WO/2014/132458A1 |
Provided is a method for leaching gold from gold ore containing pyrite. Said method for leaching gold includes a pretreatment step that includes a step (1) in which gold ore containing pyrite is prepared, and a step (2) in which the gold...
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WO/2014/124422A1 |
Methods described herein generally relate to the treatment of carbonaceous materials with ozone to facilitate the subsequent recovery of metal species (e.g., precious metals) from the carbonaceous material. In some cases, the method may ...
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WO/2014/122803A1 |
A method for leaching gold from a gold ore containing pyrite, in which the gold leaching rate is improved without requiring the use of a highly toxic chemical substance such as cyan, thiourea, thiosulfuric acid and a halogen gas. A metho...
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WO/2014/122363A1 |
The present invention relates to a method and an arrangement for pressure and temperature let down of autoclave discharge slurry, in particular in pressure oxidation or high pressure acid leach of metal containing ore. The method of the ...
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WO/2014/121150A1 |
A process for bio-oxidation of sulfides in mineral ore having a metal such as gold occluded or dispersed within the ore as a sulfide is disclosed. The first step comminutes the ore into particles with a size distribution having a P80 of ...
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