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JP5891316B2 |
A method for recovering ruthenium from waste catalyst of aluminum oxide loaded with ruthenium comprises the following steps: drying, roasting and cooling the waste catalyst of aluminum oxide loaded with ruthenium; grinding into black pow...
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JP5889417B2 |
A method for recovering precious metal held in a metal carrier catalyst from said catalyst, that includes a step (1) in which the catalyst is heated in a nitric acid solution, and a step (2) in which the post-step (1) catalyst is heat tr...
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JP2016508185A |
Devices and methods for removing metals from composite materials.
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JP5887992B2 |
To provide a method for recovering silver, which is capable of efficiently recovering silver from effluents.A method for treating a silver-containing effluent includes adding and mixing a cationic polymer flocculent (A), adding and mixin...
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JP5882622B2 |
To provide a method for disposing shredder dust, which can efficiently dispose shredder dust containing moisture (3-15%) while recovering a valuable metal, such as copper, at the same time from the shredder dust.The method for disposing ...
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JP5881469B2 |
To recover ruthenium at a high recovery rate even from a mixture low in ruthenium content.A method of recovering ruthenium from a mixed solution containing ruthenium of not more than 1.0 g/l includes the tellurium addition process of add...
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JP5881502B2 |
To achieve the recovery of ruthenium in a high recovery rate even from a mixture in which a ruthenium content is low.A method for recovering ruthenium from a mixed solution including ruthenium of ≤1.0 g/L includes: a tellurium addition...
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JP5858223B2 |
To provide a recovery agent of noble metals in the technical field for recycling the noble metals contained in liquid, which can carry out easily separation precipitation and recovery of the noble metals from liquid containing the noble ...
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JP5853963B2 |
According to the present invention, ruthenium or a ruthenium compound, which is expensive, can be collected with high efficiency even from an aqueous solution containing a water-soluble salt, a lower alcohol, an organic acid or the like,...
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JP5854460B2 |
To provide a means for selectively extracting cadmium or zinc ions from a solution containing at least one base metal ion chosen from cadmium and zinc.There is provided a compound represented by formula I [wherein R, R, Rand Rare each in...
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JP5852270B2 |
Provided is a process for the comprehensive recovery of metal cobalt, ruthenium and aluminum from a waste catalyst Co-Ru/Al 2 O 3 in a Fischer-Tropsch synthesis. First, a waste catalyst is subjected to hydrocarbon removal, and reduction ...
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JP5851414B2 |
Provided are: a capsule for non-ferrous metal collection that can collect a non-ferrous metal; and a method for collecting a non-ferrous metal using same. The capsule for non-ferrous metal collection comprises capsule contents and a cove...
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JP5851700B2 |
Provided is a method that is for recovering platinum group elements from an SiC-based substance and that reduces the temperature at which the SiC-based substance homogeneously melts in slag. The method, which is for recovering platinum g...
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JP2016011456A |
To provide a separation agent that makes it possible to selectively separate and recover a platinum group metal ion from a solution comprising a plurality of metal ions, and a platinum group metal ion separation method.A platinum group m...
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JP5843065B2 |
To provide a recovery method of ruthenium, which secures a high recovery rate of ruthenium even when using a large reaction tank, and is suitable for practical use.The recovery method of ruthenium includes the steps of: distilling ruthen...
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JP5840761B2 |
Gold adsorbed by activated carbon is efficiently recovered at low cost. The method of recovering gold comprises eluting gold adsorbed by activated carbon with an eluent prepared by adding thiosulfate to an acidic aqueous solution to obta...
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JP5840764B2 |
Gold and silver adsorbed on activated carbon are efficiently eluted. The method of eluting gold and silver adsorbed on activated carbon, the method comprises: eluting gold and silver on activated carbon, on which at least the gold and si...
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JP5840642B2 |
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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JP5840641B2 |
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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JP5840643B2 |
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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JP5835961B2 |
To provide a method for leaching metal, by which metal compositions such as copper and zinc included in a waste electronic substrate can be efficiently recovered and precious metals such as rare metal, gold and silver can be also recover...
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JP2015232084A |
To provide a metal scavenger that facilitates purification and allows easy and efficient recovery of metal, a production method thereof, and a metal recovery method that allows easy and efficient recovery of metal.A water-soluble metal s...
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JP5837756B2 |
A compound represented by General Formula (1) below, where R denotes a C1-C10 hydrocarbon group, Z denotes any one of a sulfide group, a sulfinyl group and a sulfonyl group, and n denotes an integer of 4 to 8 is described. A method for e...
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JP5835579B2 |
To provide a treating method capable of reducing and decomposing a bromate ion without depositing a platinum group element in a solution and recovering the platinum group element by solvent extraction and ion exchange from the solution o...
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JP2015227506A |
To provide a method for making platinum group metal (PGM) alloys for fuel cell applications.The method includes a step of heating a substrate to a predetermined temperature. The substrate is contacted with a vapor of a PGM-containing com...
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JP2015535886A |
A process for preparing alumina, in which the aluminum-containing material is leached with HCl to obtain a leachate and solid containing aluminum ions, magnesium ions, and the solid is separated from this leachate; MgCl2. A step of subst...
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JP2015227474A |
To provide a separation recovery method which enables mutual separation and recovery of platinum and palladium, as metal particles, from a raw material solution containing platinum ion and palladium ion by a low-energy type (low environm...
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JP2015227504A |
To provide a process for the preparation of an aqueous colloidal precious metal suspension, in the absence of organic solvent, under mild conditions of pH and temperature and at short reaction times, without specific requirements as to p...
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JP5832665B2 |
The present invention provides a method for leaching gold from gold ore containing pyrite. There is provided A method for leaching gold comprising: a pretreatment stage including: a step 1 of preparing gold ore containing pyrite and a st...
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JP2015214731A |
To provide a gold recovery method enabling gold to be recovered from ore containing arsenic and gold such as arsenopyrite at a high recovery rate.The gold recovery method is provided for recovering gold from ore containing arsenic and go...
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JP5825484B2 |
To provide a method for effectively recovering a platinum group metal with high purity from a raw material containing platinum group metal.The recovery method of a platinum group metal is characterized in that after palladium is extracte...
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JP2015209584A |
To provide a novel gold separation liquid which suppresses dissolution of coexistent elements and eliminates the need of a gold deposition step based on e.g. a reduction treatment for gold recovery.A gold separation liquid comprises a ch...
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JP5822250B2 |
To provide a silver or a silver-containing alloy with a reduced amount of α rays which is used, e.g., for manufacturing a semiconductor, and a method for producing the same.In the silver, the amount of α rays in a sample after being su...
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JP2015533193A |
A method for producing a solid phase metal, that is, elemental silver, is disclosed herein. These methods generally form a solid phase reaction mixture of at least virtually solvent-free containing a silver-containing compound and an org...
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JP5818315B2 |
To provide a means for selectively extracting Rh or Pd ions from a solution containing ions of a base metal and a platinum group metal.An extractant of metal ions includes a compound represented by formula I. In the formula, Rand Rare ea...
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JP5813163B2 |
The present invention relates to a technique for recovering and recycling a platinum paste. The present invention provides a method for recovering a metal powder from a platinum paste formed by mixing a solid component composed of a meta...
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JP5815124B2 |
The method is used to obtain metals, noble metals, and rare earth metals from scrap. The aim of the invention is to provide a method that allows an efficient recovery even from electronic scrap. This is achieved in that the scrap and car...
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JP5803136B2 |
To provide an extractant or adsorbent for separating selectively palladium ion from a solution containing platinum ion of high concentration, and a method of separation-recovering the palladium ion using the adsorbent.The palladium ion i...
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JP5805061B2 |
The method comprises filling a tank (a1) with a metallic ash, venting ambient air from the tank, injecting air and/or oxygen to the tank by a tank bottom (b2), heating the tank to an ignition temperature, and agitating the metallic ash b...
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JP5804546B2 |
Provided is a method for recovering PGM from a material to be processed that contains PGM. Specifically provided is a method for recovering PGM from a material to be processed that contains PGM, which comprises: a reduction smelting step...
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JP2015531432A |
A method for producing a metal, that is, elemental silver, is disclosed herein. These methods generally include the step of forming a reaction dispersion containing a solvent containing a silver-containing compound, an organic acid, and ...
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JP2015183204A |
To provide a method for recovering silver from a recovery object containing silver oxide and impurities in a solution purification step, while reducing the impurities.A method for recovering silver includes: a dissolution step of obtaini...
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JP5799340B2 |
To provide a method for recovering noble metals, capable of efficiently conducting coagulation and precipitation of the noble metals in a liquid that contains the noble metals and base metals, separation of the noble metals from the base...
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JP5794130B2 |
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JP5792565B2 |
A precious-metal adsorbent is chemically modified by a functional group including an N atom and/or an S atom, and is formed from one of an alga, a residue of the alga, a substance obtained by treating the alga with a strong acid, and a s...
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JP2015178652A |
To enable metallic material constituting wiring and an electrode and the like of a semiconductor chip having an element composed of a semiconductor to be more easily separated from the semiconductor chip and recovered.There is provided a...
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JP5790408B2 |
To provide a method for selectively separate silver using a redox reaction in a case where both silver and copper are dissolved in a halide aqueous solution.When recovering silver from a halide aqueous solution selected from a chloride a...
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JP5792284B2 |
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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JP5792043B2 |
To provide a method that can inhibit the gold concentration in a solution after leaching in time progress from dropping after gold is leached out of a sulfide mineral.This method for leaching gold out the sulfide mineral or out of residu...
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JP5786661B2 |
To provide a method for separating and recovering a platinum group element which suppresses accumulation of antimony in a polyamine based anion exchange resin to efficiently recover platinum group elements.The method for separating and r...
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