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JP6050222B2 |
Provided is a method for processing electrical/electronic component scraps, the method being capable of limiting the occurrence of over-reduction in smelting furnaces and of efficiently processing as much electrical/electronic component ...
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JP6047132B2 |
Processes for recycling printed wire boards using environmentally-friendly compositions, wherein electronic components, precious metals and base metals may be collected for reuse and recycling.
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JP6038279B2 |
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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JP6038192B2 |
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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JP6032496B2 |
To provide a method for production of selenium from an electrolytic slime which is a method of recovering low-sulfur content high-purity selenium by preventing sulfur contamination into the selenium collected from the electrolytic slime....
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JP6034433B2 |
To provide a method which, after leaching gold from a sulfide mineral, can suppress temporal decrease in gold concentration in a liquid after leaching.There is provided a method for leaching gold contained in a sulfide mineral or a leach...
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JP6030005B2 |
To provide a method for recovering high-purity platinum group elements in high yields.The provided method for recovering platinum group elements includes a step of separating, by percolating, with a nitric acid solution, and filtering an...
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JP6025868B2 |
There are provided processes for treating red mud. For example, the processes can comprise leaching red mud with HCl so as to obtain a leachate comprising ions of a first metal (for example aluminum) and a solid, and separating said soli...
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JP6026179B2 |
To provide high purity ruthenium at a high yield.Regarding a method in which ruthenium in a ruthenium-containing acidic solution is oxidized into volatile ruthenium tetraoxide by oxidation reaction, and is distilled to recover ruthenium,...
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JP6025799B2 |
The present invention relates to a method for recovery of noble metals from long-chain hydrocarbons, oils or tars, comprising a thermal treatment process in the presence of a defoaming agent having an ash fraction of 0.1 % by weight or m...
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JP6025468B2 |
To provide a safe and simple method with a light environmental load for separating/recovering a platinum group element that is a recovery process of platinum group metals using a wet method and an ion exchange method and has an excellent...
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JP2016191136A |
To provide a method for simply separating rare metal by solvent extraction using a specific extractant containing a sulfur atom.Rare metal is extracted and separated by a method (liquid separation) for extracting and separating rare meta...
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JP2016186110A |
To provide a method of recovering palladium that makes it possible to recover palladium from a palladium carbon catalyst at a high recovery rate.A method of recovering palladium comprises step (S1) of incinerating a palladium carbon cata...
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JP6012650B2 |
A method for producing highly pure platinum on an industrial scale, as well as the use of said highly pure platinum. According to the method, a hexahalogenoplatinate is reduced to platinum in acidic conditions.
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JP6009735B2 |
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JP6011809B2 |
To provide a method for manufacturing gold powder with a high bulk density, by improving handling efficiency of gold powder and equipment efficiency in a melting step, improving operation and equipment efficiency in a reduction step by p...
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JP6007583B2 |
To provide an adsorbent capable of obtaining the adsorbing ability of noble metals, method for producing the same, and a method for recovering the noble metals.An adsorbent has a granular base material and a graft chain introduced into t...
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JP6001404B2 |
To provide a method for regenerating water from plating wastewater capable of achieving resource saving and environmental protection by reusing plating wastewater containing silver and cyan as rinsing water in a plating process, and a me...
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JP5999478B2 |
To provide a method and apparatus for recovering a noble metal, by which the noble metal can be efficiently recovered from a material containing the noble metal without using a process such as copper smelting or strongly oxidizing acid s...
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JP5995275B2 |
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JP2016165683A |
To provide a filter composed of a transparent filter case excellent in acid-resistance and alkali-resistance and hardly damaged even by a hard metal, and a manufacturing method thereof, and to provide a method for recovering precious met...
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JP5992796B2 |
To provide a method for separating and collecting noble metal, capable of efficiently separating and collecting the noble metal from a solution including the noble metal by a simple operation and repeatedly reusing a resin used for separ...
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JP5991309B2 |
To provide a method for producing high-purity platinum powder, in which the high-purity platinum powder, that hardly contains impurities such as sodium and chlorine, can be produced at a high platinum recovery rate of 99% or more.The met...
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JP5984020B2 |
To provide a method for separating and recovering platinum group elements capable, while preserving a performance of adsorbing, selectively at a high adsorption ratio in the co-presence of high-concentration impurity elements, platinum g...
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JP2016160493A |
To provide a method and a device which can separate and collect noble metals including gold effectively from an electronic base plate without waste fluid having high environmental load and preventing affection of base plate individual di...
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JP5981204B2 |
To provide an element separation and recovery method by which selectivity and recovery efficiency of an element such as valuable metal, can be considerably improved, a substance used for recovery of the element can be reused and a chelat...
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JP5979634B2 |
To provide a method capable of easily and efficiently collecting metal components from a material containing highly useful metal components such as noble metal or rare metal.A method includes: a step for occluding a metal component in a ...
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JP2016151062A |
To efficiently remove an impurity element from a Pt-containing solution containing at least one of Se, Bi and Pb as the impurity element, and to efficiently recover Pt therefrom.A method for removing an impurity element from a Pt-contain...
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JP2016148064A |
To provide a technique that conveniently inhibits silver deposition when adding a reductant to a chloroauric acid solution comprising silver.A silver deposition inhibition method according to the present invention comprises adding a redu...
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JP5957013B2 |
The invention relates to a process for recovering at least one platinoid element contained in an acidic aqueous solution comprising chemical elements other than the platinoid element, the process comprising the steps of (a) bringing the ...
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JP5955393B2 |
The present invention improves the leaching speed of gold while also inhibiting the generation of sulfur dioxide in a method for leaching gold from gold ore containing pyrite without using highly poisonous chemicals such as cyanogen, thi...
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JP2016520721A |
the present invention relates to the method of collecting acid and platinum group metals, from the exudation solution of a waste catalyst -- more -- detailedThe stage of collecting the acid which provided in the concentration tub, heated...
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JP5950103B2 |
To provide a treatment method in which, when noble metal included in anode slime or the like is separated from impurities such as lead sulfate and barium sulfate by dry treatment, capable of treatment at a heating temperature lower than ...
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JP2016125110A |
To provide a noble metal adsorption agent for separating and recovering a noble metal from an aqueous solution containing a noble metal such as gold, palladium and platinum, and also to provide a method for recovering noble metal using s...
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JP2016125109A |
To provide a method for selectively adsorbing and recovering a noble metal from an aqueous solution containing noble metal such as gold, palladium and platinum.Provided is: a method for recovering a noble metal from a solution containing...
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JP2016125127A |
To provide a method for separating and recovering a noble metal from an aqueous solution containing a noble metal such as gold, palladium and platinum.The invention relates to: a noble metal recovery agent being a recovery agent for reco...
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JP5946034B2 |
To provide a processed product of noble metal-containing scrap from which the noble metal can be simply and efficiently recovered and a production method therefor and a noble metal recovery method.A processed product of noble metal-conta...
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JP5943463B2 |
To provide: an artificial peptide with a rare metal-binding capacity; and a method of recovering rare metals with few environmental loads.A peptide has the following amino acid sequence (1), and the number of amino acid residues is at mo...
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JP5945429B2 |
To provide a method for recovering metal and an apparatus for recovering metal which recover metal with high efficiency and low cost from metal waste fluid.A metal waste includes at least one element selected from the group consisting of...
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JP2016113650A |
To provide a gold and palladium separation method which can separate gold and palladium, from a gold ion-palladium ion solution comprising a plurality of metal ions, with high selectivity in a short time.A selective separation method for...
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JP2016108624A |
To provide an extraction method and a recovery method capable of extracting gold with one step and high selectivity and without needs for a specific post treatment process of a water phase using a back extraction.The invention relates to...
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JP5934047B2 |
To efficiently recover palladium at a high recovery from a palladium-containing waste liquid in which an inorganic sulfur oxide such as sodium sulfite is included without requiring a complicated operation.The method for recovering pallad...
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JP5935082B2 |
To provide a noble metal selective collection agent and a method of selectively collecting noble metal from noble metal-containing liquid, which allow separation, precipitation and collection of noble metals from noble metal-containing l...
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JP5927912B2 |
To provide a method for recovering a noble metal from a solution containing noble metal ions, an extractant or an adsorbent, and a back extractant or a desorbent used therefor.The noble metal is obtained by bringing the extractant that h...
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JP2016098400A |
To effectively remove Te and Sb from a Rh-containing solution containing at least one impurity selected from the group at least consisting of Te and Sb without performing chlorination volatilization-roasting.Provided is a method where im...
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JP5926524B2 |
According to a metal recovery method, it is possible to recover with high efficiency metals (metal ions) contained in a solution by culturing red algae belonging to the order Cyanidiales in a solution wherein the cell concentration there...
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JP5908717B2 |
To provide a treatment method capable of obtaining a high decomposition removal effect while inhibiting excess addition of organic materials in treatment of decomposing and removing nitric acid by adding an organic reducing agent to a ni...
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JP5907792B2 |
To provide a method for safely treating an osmium-containing waste liquid at a low cost.A method for treating an osmium-containing waste liquid includes: a first step of adding a reducing agent to the osmium-containing waste liquid; a se...
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JP2016047505A |
To provide a novel noble metal adsorbent that achieves recovery of noble metal at a low cost and with a low environmental load.The noble metal adsorbent including an insoluble gel produced by adding a crosslinking agent to polyphenol der...
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JP5893458B2 |
There is provided a process for removing metal from solution wherein a solution comprising a metal is contacted with a scavenger support, whereby the scavenger support binds to at least some of the metal in solution thereby decreasing th...
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