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JP2005013774A |
To provide a recovery apparatus capable of recovering a target solid component in a corrosive waste fluid at a low cost.The recovery apparatus is equipped with a washing liquid tank 3 for housing the corrosive waste fluid containing a us...
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JP3611992B2 |
To provide a method for extracting and recovering palladium with high purity from an aqueous solution containing palladium. At the time of extracting palladium from an aqueous solution containing palladium with a dialkyl sulfide, the con...
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JP3611658B2 |
To enable platinum group elements to be separated and recycled at high yields and high purity by employing a process for producing an anion nitro complex, a process for causing selective adsorption of platinum group elements in a nitric ...
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JP2005008922A |
To efficiently produce a metal hydroxide carrying gold or platinum, and to efficiently recover gold or platinum from an aqueous solution of gold or platinum ion.The metal hydroxide carrying gold or platinum is produced by mixing an aqueo...
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JP3609422B2 |
A process for the recovery of nickel and/or cobalt values from a concentrate containing nickel or cobalt hydroxide comprises the steps of subjecting the concentrate to a leaching stage with an ammonium solution to produce a leach solutio...
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JP3609421B2 |
A process for the recovery of nickel and/or cobalt values from a concentrate containing nickel or cobalt hydroxide comprises the steps of subjecting the concentrate to a leaching stage with an ammonium solution to produce a leach solutio...
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JP2005002376A |
To provide a method of efficiently separating ruthenium from an aqueous solution comprising a trace amount of ruthenium.In the method of separating ruthenium in an aqueous solution, chlorine ions are added to a ruthenium-containing aqueo...
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JP3606995B2 |
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JP2004358628A |
To provide a method for recovering cutting chips, which are generated when a ruthenium ingot is cut, with high purity and high yield by using simple equipment.The method is for recovering the chips generated when the ruthenium ingot is c...
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JP2004323947A |
To provide a recovering method for further enhancing an extraction efficiency and a recovery rate of a noble metal or an expensive rare metal, by solving a problem that a distribution coefficient often decreases in the process widely ado...
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JP3591134B2 |
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JP3591135B2 |
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JP2004292912A |
To provide a method for safely, easily and efficiently recovering high purity rhodium, e.g., from a small amount of metal waste containing a relatively high concentration of rhodium in a waste thermocouple or the like, and also containin...
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JP2004269936A |
To stably and efficiently obtain a metal for recovering noble metals, from which each noble metal content is easily and separately recovered by a dry method, from a spent copper member containing noble metals of gold, silver or a platinu...
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JP3564852B2 |
To provide a process for easily producing high-purity metal ruthenium powder which has uniform grain sizes and a large relative surface area without subjecting the powder to a liquid phase stage by chlorinating and sublimating the metal ...
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JP3557685B2 |
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JP2004217984A |
To dissolve such problem that the conventional adsorbent is not always excellent in absorbency, labor and facility for fitting/removing treatment, the cost needed to the absorbent and the productivity of recovery.A method for separating ...
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JP2004217985A |
To dissolve the problem that it is not sufficient in adsorptivity, processability of granulation, labor and facility for attachment/detachment, cost for regenerating an absorbent and productivity of recovery in the conventional absorbent...
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JP3549865B2 |
The nitric acid solution containing fission products (FP) is electrolytically reduced by using palladium or iron as a catalyst so that rare FP are collectively deposited on the electrodes. The deposited FP is dissolved by electrolytic ox...
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JP3550528B2 |
To provide a method for efficiently recovering platinum at the time of recovering platinum as valuables from an automotive waste catalyst. As to this method for recovering platinum, an automotive waste catalyst is subjected to two stage ...
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JP3550537B2 |
To provide a method for selectively extracting and recovering palladium less generation of sludge, when reverse extracting palladium with a dialkyl sulfide from a palladium-containing aqueous solution containing selenium, tellurium, plat...
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JP2004176079A |
To provide a method for preparing a silver film or a picture image of silver, which can be carried out only by simple and easy treatment such as low-temperature heat treatment.This method for producing the silver film uses the mixture of...
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JP2004162082A |
To provide an effective pre-treating method, to improve the recovering ratio of a noble metal and to prevent the surface oxidation of the noble metal, in a method for recovering the noble metal contained from organic waste.As the pre-tre...
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JP3535629B2 |
To establish an industrial recycle method being able to be substituted for a converter treatment of scraps. Scraps containing valuable metals is charged from a ceiling part 4 of a shaft 1 to an autogeneous smelting furnace of smelting co...
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JP2004155638A |
To provide a metal oxide dispersion which is prevented from the aggregation of a metal oxide filler and can form a thin metal film on a substrate at a low cost by a heat treatment at a low temperature and a method of manufacturing a thin...
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JP2004143566A |
To obtain a method for producing high purity platinum alloys, particularly, various high purity alloys which have reduced contamination, and have a satisfactory yield of platinum.On producing a high purity platinum alloy, a high purity m...
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JPWO2002050320A1 |
In the method of purifying zinc by guiding zinc containing impurities to a rectification column having a plurality of purification stages, impurities are removed by distilling zinc while keeping the inside of the rectification column und...
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JP3516604B2 |
To recover platinum group elements in a high yield from a metal- substrate catalyst for exhaust gas cleaning with a substrate composed of Fe-Cr alloy by dry treatment. Platinum group elements are recovered from a metal-substrate catalyst...
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JP3513139B2 |
To provide a method by which platinum-group metals can be separated clearly from each other by using a chromatography medium. The platinum-group metals are separated from each other by using a glycol methacrylate chromatography medium an...
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JP3513843B2 |
PURPOSE: To selectively an quantitatively precipitate and separate low-basicity impurities even when the composition of an aq. soln. contg. platinum-group elements is significantly changed and to minimize a loss of rhodium due to copreci...
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JP2004091898A |
To provide a method for economically recovering noble metal essentially consisting of silver from electrolytic copper slime recovered in a copper electrolysis stage.In the treatment method for electrolytic copper slime, copper is removed...
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JP2004076142A |
To provide a method for economically recovering noble metals mainly made up of silver from copper electrolytic slime recovered in a copper electrolytic stage.In the method for treating copper electrolytic slime, a roasted residuum obtain...
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JP2004043869A |
To provide a separating and recovering method which separates a platinum group metal such as rhodium in a raw sulfide material from copper or nickel, and obtains a high recovery rate at a low cost.In a process of adding sulfuric acid to ...
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JP3496319B2 |
PURPOSE: To easily separate cationic impurities in a quantitative and selective manner from an aq. soln. contg. elements of the platinum group and other cationic impurity elements even when rhodium does not precipitate and the concn. of ...
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JP2004036000A |
To efficiently dissolve or extract metals, such as uranium, platinum and palladium, metalloids or their oxides while reducing environmental load.The metals, metalloids or their oxides are dissolved or extracted by using a supercritical f...
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JP3493778B2 |
PURPOSE: To provide a method tor obtaining an aq. soln. of high purity rhodium by selectively separating impurity metals other than rhodium from an aq. soln. contg. rhodium and impurity metals by simple extracting operations and to provi...
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JP2004500976A |
The invention relates to a method for the treatment of work pieces with a palladium colloid solution by bringing the work pieces into contact with the colloid solution, palladium being recovered after the use of the colloid solution. Thi...
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JP3480216B2 |
To provide a method for attaining separation of platinum and ruthenium to each other by a simple extract operation using a single extractant without using an evaporation process. After hydrochloric acid concn. of an aq. soln. containing ...
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JP3479483B2 |
To reduce the grade of Te in a method for recovering high purity platinum in which Pt is subjected to solvent extration from a Pt and Pd- containing solution, thereafter, the back extraction is performed, subsequently, the pH of the solu...
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JP3474526B2 |
To provide an efficient process for recovering silver from copper anode slime and scrap. The method is for recovering silver from a raw material containing at least noble metals including silver and lead and embraces steps of: (1) subjec...
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JP2003346574A |
To provide a new silver salt exhibiting excellent processing performance composed of an inorganic silver salt and an organic amine and producing conductive silver readily through reaction to heat or light, and a process for forming condu...
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JP2003301225A |
To provide a method for recovering noble metals from an organic material containing the noble metals, in a high yield and without forming hazardous materials.The method for recovering the noble metals comprises heating and carbonizing th...
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JP2003293049A |
To recover silver and lead from silver- and lead-containing slag of copper electrolysis slime with superior separability.In this silver recovering method, a reducing material and a slag-forming material are added to the silver-and lead-c...
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JP2003530488A |
A new method of creating thin free-standing pin hole-free hydrogen-selective palladium-bearing membranes that comprises thinning cold-rolled membranes by chemical etching or electrochemically electrolyzing of at least one membrane surfac...
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JP2003272454A |
To provide a material capable of easily changing into silver salt by light or heat and its process.This invention is a photodecomposition process or a thermal decomposition process of a new silver composition consisting of inorganic silv...
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JP2003268423A |
To provide a method for manufacturing colloidal dispersions of silver particles in a higher yield for silver than that of a prior art, while using a Carey-Lea method of adding a solution containing ferrous ions and a solution containing ...
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JP3449389B2 |
To separate plural kinds of platinum-group elements from one another with a simple treating stage without using an additive. An aq. metal slat soln. is treated at ≥200°C and ≥160kg/cm2 pressure to decompose the metal salt, and the m...
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JP2003247028A |
To provide a method for recovering catalytic metals from fluids containing the catalytic metals.Fluid compositions such as rinse solutions or dragout baths containing catalytic metal colloids are passed through a filter 16 that entraps t...
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JP2003247029A |
To provide a method for recovering catalytic metals from fluids containing the catalytic metal colloids.Fluid compositions such as rinse solutions or dragout baths containing catalytic metal colloids are passed through a porous metal fil...
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JP3437506B2 |
To provide a method for efficiently separating palladium from an aqueous solution containing palladium and platinum and recovering platinum of high purity. The pH of an aqueous solution containing platinum and palladium is adjusted to >8...
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