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Matches 101 - 150 out of 10,254

Document Document Title
WO/2013/005349A1
The present invention addresses the problem of providing: high-purity yttrium characterized by having a purity, in terms of the purity of the yttrium from which the rare-earth elements and gas components have been excluded, of 5 N or hig...  
WO/2013/003041A2
A method of alloying an iron majority compound with an oxide is provided. The method may include: heating the iron majority compound to a molten state; adding an oxide containing manganese to the molten iron majority compound; adding sla...  
WO/2013/001661A1
High-purity erbium having: a purity of at least 5N, excluding rare-earth elements and gas components; no more than 1 wt ppm each of Al, Fe, Cu, and Ta; no more than 10 wt ppm of W; no more than 150 wt ppm of carbon; no more than 1 wt ppm...  
WO/2012/169760A2
The present invention concerns a production method for tin from which low-alpha radiation is emitted by using vacuum refining, the method comprising the steps of: preparing a tin starting material that emits a large amount of alpha radia...  
WO/2012/169760A3
The present invention concerns a production method for tin from which low-alpha radiation is emitted by using vacuum refining, the method comprising the steps of: preparing a tin starting material that emits a large amount of alpha radia...  
WO/2012/164152A1
The invention is related to an arc melting and tilt casting apparatus (1) having a casing (13) provided with a vacuum chamber (12 ) for housing a hearth having a melting trough (7) and pouring means (7'), arc-melting electrode means (4, ...  
WO/2012/149551A2
A method and an apparatus for charging a particulate, for example lime, with a carrier gas, for example oxygen, through a lance into a metallurgical vessel or furnace. The apparatus comprises a metallurgical lance having an inner barrel ...  
WO/2012/149551A3
A method and an apparatus for charging a particulate, for example lime, with a carrier gas, for example oxygen, through a lance into a metallurgical vessel or furnace. The apparatus comprises a metallurgical lance having an inner barrel ...  
WO/2012/144314A1
Provided is a molten metal filtration device capable of reducing the remaining amount of molten metal, and further capable of suppressing oxidization of molten metal during a filtration process. A molten metal filtration device (1) is ch...  
WO/2012/139484A1
A tantalum-material multilevel distillation crucible; the distillation crucible comprises a crucible body (1), an insulation plate (2), and a receiving hood (3); the insulation plate (2) is sheathed in the upper part of the crucible body...  
WO/2012/140951A1
Provided is a method in which, when discarded batteries such as lithium-ion batteries are treated by a dry process, slag having a reduced viscosity is obtained to heighten the recovery of valuable metals. The method for recovering valuab...  
WO/2012/138456A1
Certain embodiments of a melting and casting apparatus comprising includes a melting hearth; a refining hearth fluidly communicating with the melting hearth; a receiving receptacle fluidly communicating with the refining hearth, the rece...  
WO/2012/126274A3
A device and method for removing impurities in an aluminum melt. The device comprises an upper furnace body, a lower furnace body, an intermediate partition plate, a crucible, a heating element and a charging opening. The intermediate pa...  
WO/2012/126274A2
A device and method for removing impurities in an aluminum melt. The device comprises an upper furnace body, a lower furnace body, an intermediate partition plate, a crucible, a heating element and a charging opening. The intermediate pa...  
WO/2012/124565A1
Provided is a method in which predetermined metals of platinum group metals existing in a copper phase are unevenly distributed in the copper phase. To increase the ratio of rhodium distributed in a molten copper phase, additional copper...  
WO/2012/121353A1
A rare earth metal recovery apparatus and a rare earth metal recovery method, each of which can recover a rare earth metal from a rare earth magnet and enables the extraction of the rare earth metal from the rare earth magnet with molten...  
WO/2012/115272A1
[Problem] To make it possible to efficiently produce an ingot, by efficiently cooling an ingot that is removed from a mold built into a melting furnace for smelting metal, in the production of active metal using the melting furnace, whic...  
WO/2012/110717A1
The invention relates to a manufacturing process that makes it possible to obtain an unwrought semi-finished product having at mid-thickness a density of micropores having a size greater than 90 µm of less than 50% and preferably of les...  
WO/2012/108522A1
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...  
WO/2012/101002A1
The present invention relates to a method for solidifying a mass of liquid sulfur comprising the following operative phases: (a) pouring a mass of liquid sulfur into a solidification pond and forming a layer of sulfur which spreads over ...  
WO/2012/099009A1
Provided is a method for suppressing distribution of PGM to Cu2O slag in oxidation smelting in a method for recovering PGM. Specifically provided is a method for recovering PGM, which comprises: a reduction smelting step wherein a member...  
WO/2012/099092A1
The present invention addresses the problem of providing a technique capable of efficiently and stably providing a method for producing high-purity lanthanum, the method characterized in that: a crude lanthanum oxide raw material having ...  
WO/2012/093724A1
The present invention relates to an alkali metal separation and recovery method comprising a step for separating filtration water containing an alkali metal from raw water containing an alkali metal using a nanofiltration membrane and a ...  
WO/2012/093943A1
The invention relates to a device and a method for supplying heat to a metal melt, where in a closed container (11) with openings (13,14) for supply and discharge of the melt and where a sub pressure may be formed, a rotor (16) in the fo...  
WO/2012/090843A1
An impurity separation method comprising: mounting an impurity separation device in a molten aluminum alloy, the device being provided with a flow path having a cross-sectional area less than that of the upstream and downstream flow path...  
WO/2012/077610A1
The invention relates to an alkali metal separation and recovery method that comprises separation of an alkali metal-containing permeate from raw water containing alkali metals using a nanofiltration membrane and recovery of the alkali m...  
WO/2012/071640A1
The present invention relates to a novel method for producing high-purity metallurgical-grade silicon metal by leaching silicon metal and then purifying same in subsequent steps. Said method, which is the subject matter of the present pa...  
WO/2012/074962A3
The present invention relates generally to a smelting operation or the like, by which molten metal is produced from a metal oxide after metal oxide agglomerates are directly reduced and melted with a carbonaceous material in an electric ...  
WO/2012/067061A1
A production method for high-purity lanthanum having a purity of 4N or more excluding rare earth elements other than lanthanum and gas components, the method being characterized by the production of lanthanum having a purity of 4N or mor...  
WO/2012/053328A1
Provided is a flange joint for a molten metal stirring body, configured so that, even if used for many hours or for an extended period of time, the flange joint can be easily detached from the shaft and does not cause the breakage of the...  
WO/2012/054478A1
Various illustrative embodiments of an apparatus and method for reducing the dissolved hydrogen content of a molten metal alloy are provided. The disclosed embodiments can be utilized for the processing of molten metal alloys such as alu...  
WO/2012/044205A1
The invention relates to the field of nonferrous metallurgy, and specifically to the production of pseudo β-titanium alloys comprising titanium and also the following alloying elements: molybdenum, vanadium, chromium, zirconium, iron an...  
WO/2012/027406A3
A chamber assembly (26) for providing a sealed chamber (40) adjacent to a workpiece (28) to counteract the influence of gravity on the workpiece (28) includes a chamber housing (244), and a seal assembly (33) that expands and/or contract...  
WO/2012/026649A1
The present invention relates to preparing ferro molybdenum from molybdenite concentrate, and more particularly, to a method for directly preparing ferro molybdenum having copper content of 0.5% or less from molybdenite with high copper ...  
WO/2012/024735A3
An electrolytic cell comprising, a housing having a channel extending there through and an opening formed in the housing for receiving an electrode cartridge, an inlet allowing water to pass into the channel, an outlet allowing water to ...  
WO/2012/024735A2
An electrolytic cell comprising, a housing having a channel extending there through and an opening formed in the housing for receiving an electrode cartridge, an inlet allowing water to pass into the channel, an outlet allowing water to ...  
WO/2012/018394A2
Combined microwave heating and plasma/electric arc heating is utilized in several processes and apparatus which involve co-production of pig iron and high quality syngas, biomass to liquid fuel production, coal to liquid fuel production,...  
WO/2012/018394A3
Combined microwave heating and plasma/electric arc heating is utilized in several processes and apparatus which involve co-production of pig iron and high quality syngas, biomass to liquid fuel production, coal to liquid fuel production,...  
WO/2012/016100A2
A burner assembly comprising a burner with a body and a burner throat extending downwardly from the burner body, a carriage located below the burner and provided with a cradle, a media box configured to pivotally mate with the cradle alo...  
WO/2012/016100A3
A burner assembly comprising a burner with a body and a burner throat extending downwardly from the burner body, a carriage located below the burner and provided with a cradle, a media box configured to pivotally mate with the cradle alo...  
WO/2012/015642A2
A method for reducing tundish and ladle nozzle clogging in a steel making process by introducing an additive into molten steel containers used in steel making at predetermined times. The additives introduced are oxides of iron which cont...  
WO/2012/006660A1
A method for the pyrometallurgical processing of nickel-containing material using a fluxing composition comprising calcium.  
WO/2012/006726A1
The present document describes a method and confinement unit for stopping a chemical reaction involving hot metal dross and a gas in the surrounding environment. The method comprises transferring the hot metal dross in a dross pan and pl...  
WO/2011/130790A1
A method of smelting a gold rich source material in a crucible comprising: i) adding a fluxing agent to the crucible; ii) heating the fluxing agent in the crucible to provide an initial molten fluid pool of fluxing agent in the crucible;...  
WO/2011/132628A1
Disclosed are a method for melting aluminum powder and a melting apparatus capable of melting aluminum powder with a high yield and making it possible to reuse the melted aluminum in a variety of applications. The method for melting alum...  
WO/2011/132829A1
The present invention relates to a magnetic refrigerator using magnetic refrigeration characteristics, wherein heat is radiated when a magnetic field is applied to a magnetic material, but the temperature is decreased when the magnetic f...  
WO/2011/127827A1
A filter used for filtering molten metal and a preparation method thereof are disclosed. The filter comprises open-pored porous material, binder and refractory material. The refractory material is bonded on the open-pored porous material...  
WO/2011/127402A1
Methods and devices for degassing and for removing impurities from molten metals are disclosed. These methods can include operating an ultrasonic device in a molten metal bath, and adding a purging gas into the molten metal bath in close...  
WO/2011/110590A1
A method and apparatus for harvesting waste thermal energy from a pyrometallurgical vessel (1) and converting that energy to direct electrical current, the method including deriving and controlling a primary fluid flow (103) from a prima...  
WO/2011/111525A1
Disclosed is a method in which oxidation loss can be reduced by directly melting recovered printing plates with new ore so that a molten yield as high as the melting of regenerated metal can be obtained. Specifically disclosed is a melti...  

Matches 101 - 150 out of 10,254