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JP2007185552A |
To establish adsorption conditions and an adsorbent that enhance the capability of noble metal adsorption in the use of proteins as a noble metal adsorbent.Using a water soluble protein powder in the state of, directly in powdery form or...
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JP3946798B2 |
To provide a method for safely producing cap high crystallinity platinum powder of stable quality and capable 8 being automated. At least one kind of salt selected from alkali salt and alkali earth metal salt is used as a spacer, which i...
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JP3943018B2 |
A chromatographic separation method separates ruthenium from other platinum group metals in a feed solution, by converting the Ru to a nitrosyl complex, retaining the nitrosyl complex temporarily on the chromatography column and subseque...
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JP3943564B2 |
To efficiently remove Se and Te from a raw material containing Se, Te and platinum group metals, and to leach/recover platinum group metals. In the chloridizing treatment method for an Se-containing material, a raw material containing Se...
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JP3938909B2 |
To provide a method of leaching desired noble metals from a sample containing a plurality of noble metals. In the method of leaching noble metals consisting of at least two stages, halogenated oxoacids respectively different in oxidation...
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JP3932339B2 |
To further reduce the amount of a reagent consumed under a high gold extraction rate in a gold refining process using innocuous thiosulfate as an alternative to a gold cyanidation process using cyanogen. In the gold refining process, whe...
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JP3920462B2 |
To facilitate the preparation of an aq. soln., to ensure stability in preservation at ordinary temp. and to reduce deposition of a noble metal at a high deposition rate by using a mercapto compd., a sulfide compd. or one or more of their...
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JP3911240B2 |
To provide a method of efficiently separating and recovering a noble metal-containing catalyst component-supported wash coat from a metal carrier in a used metal carrier catalyst apparatus for exhaust gas purification or the like in an i...
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JP2007100211A |
To provide a chemical metal dissolution method which can be inexpensively practiced and is simple and highly safe.The metal dissolution method comprises bringing a dissolution auxiliary agent into contact with a metal, and bringing a dil...
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JP3906333B2 |
To provide a method for recovering noble metals from a noble-metal-containing object to be treated, such as a waste catalyst, so that smelting is more stably performed to stabilize the recovery rate of the noble metals. In the recovery m...
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JP3903141B2 |
To efficiently recover platinum group elements from a platinum group element-containing substance such as a waste catalyst by dry treatment. In the method of recovering platinum group elements, the platinum element-containing raw materia...
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JP3896423B2 |
To recover Pd with high efficiency from waste liquid such as waste liquid containing Pd in a low concentration, which is obtained in the process of washing Pd-plated matters, or the like, by bringing the Pd-containing liquid into contact...
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JP2007056308A |
To provide a method by which noble metals can be selectively recovered from an aqueous solution containing noble metal ions in a short time while obviating the necessity of large-scale equipment.This method for noble metal recovery compr...
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JP3880494B2 |
To efficiently recover small amounts of noble metal contained in the ferrous incineration ash/residue which is composed mainly of iron and discharged from nonindustrial waste incineration facilities, industrial waste incineration facilit...
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JP2007031760A |
To simply and safely peel a gold-plated part at which gold is plated on a resin through a medium of a metallic underlayer, from the resin, collect the gold film, and recycle gold.This peeling method comprises the steps of: corroding the ...
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JP3879126B2 |
PCT No. PCT/JP98/02479 Sec. 371 Date Jan. 15, 1999 Sec. 102(e) Date Jan. 15, 1999 PCT Filed Jun. 4, 1998 PCT Pub. No. WO98/58089 PCT Pub. Date Dec. 23, 1998A method for refining noble metals has a silver treating process including a nitr...
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JP2007502009A |
Heat treatment is applied, in the presence of an inorganic additive.
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JP3874553B2 |
To drastically reduce an oxygen concentration to a specific value or below by thermally decomposing a palladium intermediate product to form metal palladium and heat treating this metal palladium in a vacuum. Silver electrolysis anode sl...
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JP2007016259A |
To reduce an environmental load due to a cyanide ion contained in a conventional gold-removing liquid used when collecting gold from discarded materials containing a substrate of an electronic circuit.This system for refining and collect...
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JP2006348367A |
To provide a method for recycling a metal oxide where metal resources can be efficiently recovered from metal oxide-containing dust, sludge or the like, without generating a large quantity of exhaust gas, and final waste can be remarkabl...
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JP3862705B2 |
To provide a technique by which palladium can be separated/recovered from a palladium-containing product by using a substance having excellent safety and which does not cause a problem on safety and environment in the discharge of waste ...
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JP2006321851A |
To provide an apparatus for pyrolytic conversion into oil which can attain a high rate of recovery of hydrocarbon oils from plastic wastes.This apparatus is provided with a conveying part 18 which is set in a pyrolysis vessel 10 and conv...
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JP3843075B2 |
To efficiently recover a platinum group element, such as a waste catalyst, from a material containing the platinum group element by dry treatment. The dry recovering method for the platinum group element by heat melting the material cont...
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JP3839431B2 |
To provide a method for speedily and efficiently recovering a platinum group metal from a composite material. The method for recovering a platinum group metal from a composite material consisting of a carrier containing at least Al2O3, S...
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JP3837029B2 |
To efficiently leach and recover silver from residual dross in a refining stage containing silver chloride as the main component by using a complexing agent. In the technique for leaching and recovering residual dross containing silver c...
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JP3837879B2 |
To prevent mixing of impurity elements into the objective metals to be reduced, and to precipitate the objective metals to be reduced in high yield by allowing a reducing agent to react under the conditions of the presence of halide ions...
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JP3835487B2 |
PURPOSE: To provide a method for selectively and quantitatively separating a cationic base metal impurities having difficulty in separation using a cation exchange resin from rhodium and a method for recovering rhodium at high yield. CON...
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JP2006265626A |
To provide a method for efficiently collecting silver from a resinous product containing silver as a silver powder suitable for reuse at a high recovery rate.The method for collecting silver comprises at least the steps of: treating the ...
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JP2006241506A |
To provide a gold dissolving/removing agent which gives minimal attack on organic resists because it is an acid type agent free from toxic cyanogen and in which various combinations of ceric (IV) salts as an oxidizer and halogen acids or...
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JP3820468B2 |
To provide a method which is capable of treating an aqueous solution which contains trace silver and contains cyanide-base metal elements produced in a large amount with a simple treatment stage, is capable of treating this solution with...
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JP3822145B2 |
To provide a method for manufacturing an Mn-Ir alloy sputtering target for forming a magnetic thin film, which emits little gas and generates little particles in sputtering, and is used for forming a diamagnetic film superior in corrosio...
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JP2006233317A |
To easily recover high-purity gold in larger quantities without prolonging the length of operating time while obviating the necessity of a major modification to existing facilities.The method for recovering gold from a gold-containing le...
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JP3815093B2 |
To provide a method for collectively separating platinum group elements at a high extracting ratio from an aq. soln. in which many impurity elements are coexistent while preventing deterioration in an organic phase by solvent extraction ...
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JP2006206965A |
To obtain pure metal by a sublimation process.In this method, gold ore, silver ore, copper ore or iron ore and a solvent are charged into a blast furnace, heated by blowing a zet gas (gaseous mixture of hydrogen and oxygen) flame from th...
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JP3803797B2 |
To provide means for obtaining a high purity Ir material small in the number of times of splashes in a molten state, high in the yield as a target material and optimum as the one for forming an antiferromagnetic thin film. An Ir raw mate...
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JP3796842B2 |
To efficiently and easily recover a group VIII metal as a catalyst from a soln. after carbonylation reaction without deactivating the metal by bringing the soln. into contact with a polar solvent contg. dissolved ammonia or ammonium salt...
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JP3796841B2 |
To efficiently and easily recover a group VIII metal as a catalyst from a soln. after carbonylation reaction without deactivating the metal by bringing the soln. into contact with a polar solvent contg. a dissolved amine or amine salt an...
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JP2006175379A |
To provide a production method of a hydrogen separation film enabling high hydrogen permeability and high purity of produced hydrogen and made of a little amount of a Pd alloy material.The production method of the hydrogen separation fil...
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JP3792535B2 |
To provide a method for easily recycling high purity ruthenium from the scrap of ruthenium cut chips, mills ends or the like, and to inexpensively produce a sputtering target which has excellent properties from the high purity ruthenium ...
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JP3790152B2 |
To efficiently leach copper ore with a sulfuric acid solution in a short time. Copper in copper sulfide are can be leached into a sulfuric acid solution using a solution in which iron oxide and/or iron hydroxide are coexist. When iron ox...
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JP3784331B2 |
To provide a method for easily refining gallium from gold-containing gallium in a high yield, and at the same time collecting gold from it. This refining method is characterized by adding magnesium to the gold-containing gallium, mountin...
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JP3778338B2 |
To provide a method for producing an oxide dispersion reinforced platinum material with a further improved creep strength characteristic capable of more finely dispersing zirconium oxide in a platinum material. This production method for...
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JP2006514941A |
The present invention is directed to novel heteroatom containing tetracyclic derivatives, pharmaceutical compositions containing them, their use in the treatment and/or prevention of disorders mediated by one or more estrogen receptors a...
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JP3772770B2 |
To recover silver and lead in an adequately separated form, from a copper electrolysis slime. The method for recovering noble metals from the copper electrolysis slime comprises a silver leaching step of leaching silver in nitric acid an...
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JP2006512484A |
A process for recovering a precious metal from a sulfidic material comprises the steps of preparing an acidic aqueous halide solution having an oxidation potential sufficient to oxidize the sulfidic material and render the precious metal...
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JP2006512554A |
The present invention radiates microwaves to a fluidized bed furnace (1, 1a, 38) through at least one waveguide (5, 46), a fluidized bed (3) located in a fluidized bed furnace (1, 1a, 38). , 3a) regarding the heat treatment method for gr...
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JP2006511704A |
The invention relates to a method and a plant for the heat treatment of sulfidic ores, in which solids are heated to a temperature of approximately 450 to 1500° C. in a fluidized bed reactor ( 1 ). In order to improve the energy utiliza...
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JP2006511775A |
This invention relates to a method for the thermal treatment of granular solids in a fluidized bed ( 3, 3 a) which is located in a fluidized-bed reactor ( 1, 1 a), wherein microwave radiation is fed into the fluidized-bed reactor ( 1, 1 ...
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JP3763286B2 |
To provide a method for recovering high purity rhodium powder by which iron used in reducing roasting can be easily removed when recovering rhodium from a hardly-soluble residue containing platinum-group elements and the content of impur...
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JP2006083453A |
To provide a thin metallic wire which is used for a wiring material in a very small size integrated circuit and a quantum element, and has high straightness, a uniform diameter and a long thin-wire length.A method for manufacturing the t...
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