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JP4657770B2 |
To provide a thermite oxidation/reduction reactant which can be produced at a low cost by using, as a raw material, a fine particulate material derived from aluminum, magnesium, titanium, silicon, alloys thereof, or reducing compounds of...
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JP2011508071A |
A method of recovering silver from a silver chloride mixture in which hydrogen gas is passed through the mixture to produce a metal chloride hydride which is then heated to dissociate the metal and to release hydrogen chloride gas.
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JP2011046983A |
To efficiently recover valuable metals regarding portable or small-sized electronic equipment, and further to eliminate complicated operations.A battery is extracted from a portable or small-sized electronic equipment body, and is charge...
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JP4643059B2 |
To provide a method for recovering metals from electronic or electric parts with resins, by which highly concentrated metal-concentrates and highly concentrated resin-concentrates can be sorted, and by which valuable metals such as gold,...
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JP4642796B2 |
To provide a method for efficiently leaching at least copper and gold from copper sulfide ores. The method for leaching gold comprises steps of: subjecting a gold-containing copper sulfide ore and/or a copper sulfide ore containing gold-...
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JP2011032553A |
To solve such a problem that it is an urgent necessity to establish a method in which the used material of a catalyst for purifying waste gas, using SiC being supposed to increase hereinafter as a carrier (base) material is treated to ef...
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JP2011032510A |
To solve such a problem that it is an urgent necessity to establish a method in which the used material of a catalyst for purifying waste gas using SiC being supposed to increase hereinafter as a carrier (base) material is treated to eff...
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JP4632147B2 |
A process is disclosed for refining silver bullion, i.e. raw silver containing generally more than 90% silver besides Se, Pb, Au, Cu and platinum group metals (PGM) as main impurities. The process comprises:optionally removing Se as gase...
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JP4628033B2 |
To provide a method capable of efficiently recovering Au in a method for recovering the Au from an Au-cyan containing aqueous solution and also an apparatus for realizing such a method. In the method for recovering the Au from an aqueous...
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JP2011001570A |
To efficiently recover noble metals from an electrode material containing the noble metal without generating subsidiary harmful materials in a process for treating.In a method for extracting the noble metal components from the electrode ...
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JP2011001571A |
To effectively recover noble metal contained from an electrode material as a catalyst without generating subsidiary harmful material.The electrode material is dipped into an acidic solution by adding an oxidant, such as hydrogen peroxide...
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JP4604221B2 |
To provide an apparatus and a method for deoxidizing sponge platinum by which sponge platinum composed of platinum of ≤2 mm grain size, minimal in an undissolved residue at aqua regia dissolution and increased in dissolution rate can b...
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JP4607303B2 |
To provide a method capable of separating and recovering platinum group metals from used insoluble metallic electrodes at high purity by peeling and separating coating layers containing platinum group metal oxides from the metallic elect...
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JP4599612B2 |
To provide a method for recovering noble metals from noble metal-containing waste brick generated during the repair, dismantling or the like of a smelting furnace and a melting furnace for treating raw materials containing noble metals. ...
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JP2010275588A |
To provide a method for recovering platinum group elements by which the fractionating of platinum group elements by remote control corresponding to a high radiation field from a high level radioactive waste liquid is possible, while the ...
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JP4595082B2 |
To provide a method for selectively recovering noble metals where neither large amounts of acid nor stages such as copper refining are required. This method for noble metal recovery is the one in which, from a base material 1 with a nobl...
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JP2010270368A |
To obtain a filter for recovering noble metal as extremely rare resources which drastically improves a recovering efficiency as compared to the conventional method and is excellent in a recyclability.In the filter, in which a metal adsor...
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JP2010267527A |
To efficiently recover a metal material of a group IVB element or a group VB element from a separator of a fuel cell.A method of recovering the metal material of the group IVB element or the group VB element used for the separator of the...
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JP4578228B2 |
To provide a method for collecting Au from an Au-cyanide-containing aqueous solution, where the collecting efficiency of Au is high, and further, the space of a collecting apparatus therefor can be made small, and to provide an apparatus...
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JP2010248566A |
To effectively separate lead contained in a residue produced in a hydrometallurgy of zinc from silica.A treatment method is a method for treating the residue in the hydrometallurgy of zinc by adding water to the residue produced in the h...
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JP2010236080A |
To provide a gold ion adsorbent, a method for adsorbing gold ions, a gold recovering agent and a method for recovering gold by which gold can be efficiently recovered from abandoned electric and electronic parts or the like at a low cost...
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JP2010235999A |
To provide a method for leaching copper from copper sulfide minerals containing gold, concentrating gold in the remaining residue after the leaching and effectively separating and collecting gold, in a smelting process of collecting copp...
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JP4567169B2 |
To recover noble metals from an organic solvent in which a noble metal compound is dissolved without burning an organic matter. Base metals (such as magnesium, aluminum, zinc and lead) and hydrochloric acid or sulfuric acid are added to ...
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JP2010222693A |
To solve the following problem: in the operation of a converter, when a matte is received in a state where the large amount of oxides called as scale is left in the furnace, the fluidity of slag produced in the converter is made inferior...
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JP2010217703A |
To provide: a method of processing discarded films and photographic paper to enable efficient and reliable recovery of silver from the films and photographic paper; a processor of the films and photographic paper; and a compression molde...
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JP4554068B2 |
To provide a method for recovering metal from electronic or electric parts with resin in which values metal such as gold, silver and copper can be sorted, and efficiently recovered. This recovering method comprises a crushing step for cr...
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JP4550272B2 |
A hydrochloric acid solution containing platinum group metals has its acidity adjusted to 5.5 to 6.5M HCl and its redox potential adjusted to at least 500 mV, before being treated by chromatography. Particularly clean separation of at le...
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JP4538663B2 |
To provide a highly refining method for a metal such as indium containing various impurity elements whose purification into a high degree has been difficult in the conventional technique, and a refining apparatus therefor. Indium as a ra...
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JP2010185623A |
To perform the incineration disposal of a large amount of noble metal cards at once while preventing the remaining of unburned parts of resin in incinerating the noble metal cards.The plurality of noble metal cards 1 composed of noble me...
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JP2010179208A |
To provide a metal adsorbent capable of selectively recovering useful metal by effectively making use of biomass waste.The metal adsorbent includes an acetylated chitosan derivative comprised of acetylated chitosan, a graft chain formed ...
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JP2010180450A |
To provide a method for efficiently separating and recovering by concentrating a gold in leaching residue leached out the copper from copper-sulfide ore containing the gold, in a smelting process for recovering the copper from the copper...
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JP4527743B2 |
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JP4524593B2 |
To provide a solution which selectively and efficiently dissolves and extracts a noble metal from a member made of the noble metal, does not contain a toxic substance such as a cyanide, does not cause a problem such as apparatus corrosio...
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JP2010174352A |
To provide a method for producing rhodium black from ammonium rhodium nitrite without generating NOx and further increasing a load to water treatment.The method for producing rhodium black is characterized in that water and an ammonium s...
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JP4523617B2 |
A method of regenerating metallic powder which can remove polymer resins, or glass frits and polymer resins presenting in a waste metallic paste in an environmentally friendly and easy manner is provided. A method of regenerating metalli...
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JP4512838B2 |
To recover copper and noble metals from raw materials such as iron alloy scrap essentially consisting of iron and comprising copper and noble metals such as gold and silver with a high recovery at a low cost. A solution essentially consi...
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JP4514686B2 |
To provide an adsorbent made of thermally decomposed material of polyimide resin which is effective for waste treatment, and moreover, of which the decomposition material can be efficiently used. The adsorbent is made of crushed material...
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JP4514807B2 |
A method for manufacturing noble metal fine particles, by which noble metal fine particles are obtained whose particle diameter and alloy composition are easy to control and whose crystallinity and purity are high, is provided. The metho...
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JP2010524672A |
Process to recover ruthenium in the form of ruthenium halide, particularly ruthenium chloride, from a ruthenium-containing supported catalyst material comprising: a) chemically decomposing the ruthenium-containing supported catalyst mate...
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JP2010159456A |
To provide high-purity palladium which can be used for producing a palladium catalyst that has suppressed the lowering of its activity with time, a palladium film that has suppressed the lowering of its hydrogen permeability with time an...
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JP4506660B2 |
To provide a method where, in a wet type copper refining process including a chlorine leaching stage for a copper raw material containing a copper sulfide mineral, silver comprised in the copper raw material containing the copper sulfide...
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JP4501706B2 |
To provide a method for recovering a noble metal, which is a catalyst, from a catalyst layer of a used fuel cell with high efficiency at high purity and by a simple operation. The catalyst layer is taken out of a membrane-electrode assem...
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JP2010144240A |
To provide an efficient method for recovering platinum group metal ions. The method for recovering platinum group metal ions comprises: adding a nitrile compound and heteropolyacid to a solution in which the platinum group metal ions are...
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JP2010138431A |
To provide a method capable of selectively separating only a gold without adsorbing other metals from a predetermined concentration of hydrochloride acid solution in which a many kinds of metals are incorporated. In the case of separatin...
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JP4478784B2 |
To provide a compound in which separation treatment of various kinds of metal ions including rare earth metals can selectively and continuously be carried out in large amount by using a small amount of the compound, and a metal ion-trans...
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JP4470749B2 |
To provide an economical recovery method which can selectively recover rhodium from a hydrochloric acid solution containing platinum group elements and bismuth and easily yields highly pure rhodium which is excellent in separability from...
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JP4468999B2 |
The copper sulfide ore is leached in the halide bath without using a special oxidant but with the use of only air. The copper and gold in the copper sulfide ore can be leached at high leaching ratio. The treating steps are as follows. (1...
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JP4466187B2 |
There is disclosed a method for removing palladium, which method is characterized by contacting a solution containing a palladium complex containing a phosphorus-type ligand in an organic solvent with a layered clay compound or a zeolite...
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JP2010106326A |
To provide a method for efficiently recovering noble metal from noble metal-containing material of a catalyst waste, etc. by utilizing an aluminum as a noble metal absorbing material.This method for recovering the noble metal is performe...
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JP4461283B2 |
The invention relates to a process for the separation and recovery of non-ferrous metals from zinc-bearing residues, in particular from residues produced by the zinc manufacturing industry. The process allows for the valorisation of meta...
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