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JP6677787B1 |
To provide a method for producing sponge titanium capable of producing a sponge titanium lump having a shape close to a so-called columnar shape having a large lump volume even on the upper end side. A method for producing titanium spong...
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JP6675935B2 |
To provide a mineral concentrate burner of a copper smelting furnace and an operation method of the copper smelting furnace, capable of controlling in addition of a solid additive.There is provided a mineral concentrate burner of a coppe...
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JP6668021B2 |
To provide a rare metal recovery method which can recover rare metal without generating halogen gas in a reduction step.A rare metal recovery method includes: a molten salt immersion step (S11) of immersing rare metal containing alloy in...
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JP6665693B2 |
To provide a reduction method in copper refining capable of reducing the using amount of a liquid reductant.Provided is a method for reducing crude copper in a refining furnace 30, comprising: a first crude copper charging step where mol...
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JP6656694B2 |
To provide a novel method capable of effectively recovering titanium oxide having a higher purity for the metal titanium production from ilmenite ore in a simple and low-cost manner.A recovery method of titanium oxide for the metal titan...
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JP6655587B2 |
A process for producing high-purity magnesium by means of distillation at reduced pressure, characterized in that, the high-purity magnesium condenses in the liquid state, whereby the starting material in the form of a magnesium-containi...
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JP6652268B2 |
This refining device irradiates a mixture or compound of a substance of interest and an oxide of the substance of interest with laser beams to separate the substance of interest from the oxide. In the laser irradiation process, laser irr...
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JP6651115B1 |
To provide a method for recovering lithium from a lithium ion battery capable of recovering lithium at low cost and in high yield. According to the present invention, a step of removing an organic solvent from a lithium ion battery, a st...
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JP6648674B2 |
To provide a method for producing high quality metal manganese.In a method for producing high quality metal Mn, the metal Mn is obtained by mixing a reductant and a flux to a Mn containing material as a raw material including Zn in addit...
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JP6644065B2 |
A method for reducing molten raw materials, includes placing the raw materials, in a solid or molten state, on an inductively heated bed with coke pieces. The reduced melt that runs off the coke bed is collected and the waste gases are d...
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JP6636737B2 |
To provide a magnesium reduction furnace in which, by a simple construction, magnesium oxide in a plurality of retorts can be sequentially reduced in a predetermined time.The magnesium reduction furnace 1 includes: a plurality of retorts...
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JP6637284B2 |
To develop a technique of producing metal Se reliably while increasing a speed in producing metal Se from Se-containing solution.The present invention provides a method for producing metal selenium by adding reductant to selenium-contain...
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JP6620501B2 |
To efficiently produce metal by a heat reduction reaction.The present invention provides a metal compound reduction device comprising a reduction part 55 for reducing a metal compound, a first transfer part 50A for transferring the metal...
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JP6622627B2 |
A method for collecting minor metals from minor metal-containing glass, characterized in that the method comprises heating the minor metal-containing glass to a temperature of 900-1100°C and thereby melting the minor metal-containing gl...
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JP6621550B2 |
Provided is sponge titanium produced by the Kroll method, in which the total of a chlorine content and a magnesium content is 350 ppm by mass or lower, and a filling density is 1.65 g/cm3 to 1.95 g/cm3. The present invention can provide ...
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JP6620519B2 |
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JP6615712B2 |
To provide a method for refining ferronickel, upon reduction melting in an electric furnace, capable of producing ferronickel with a high nickel grade while preventing the reduction of operation efficiency by suppressing the generation o...
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JP6611967B2 |
This invention relates to a method for controlling exothermic reactions between metal chlorides of Zn, V, Cr, Co, Sn, Ag, Ta, Ni, Fe, Nb Cu, Pt, W, Pd, and Mo, and Al and the use of the method for preparation of metallic alloys and compo...
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JPWO2018110617A1 |
Provided is a method for producing titanium sponge, which realizes a reduction in the average chlorine concentration of titanium sponge by reducing the chlorine concentration near the top of the titanium sponge mass when producing titani...
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JP6591675B2 |
This production method for high-quality metallic manganese comprises: adding water to a manganese-containing substance, preferably to powder particles obtained by selecting manganese dry batteries and/or alkaline manganese dry batteries ...
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JP2019172544A |
To prevent deterioration of rectification performance of a rectification tower.A method for producing TiClis provided that includes: a crude TiClgas generation step of generating a crude TiClgas in a chlorination furnace; a liquefaction ...
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JP2019151911A |
To solve the problem associated with the conventional art in which: in a metal refining method using a melting furnace, it has been not easy to perform a melting method using steam.MEANS FOR SOLVING THE PROBLEM: Conventionally, it has be...
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JP2019525002A |
The present specification discloses a novel approach to the chemical synthesis of titanium metals from titanium oxide source materials. In the approach described herein, a titanium oxide source is reacted with Mg vapor to extract a pure ...
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JP6571985B2 |
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JP2019523966A |
The present disclosure relates to a method for producing a nickel-containing hydrogen storage alloy for use in a nickel metal hydride battery, wherein the method comprises (i) a mixed active material containing a used positive electrode ...
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JP2019135321A |
To provide a method for recovering effectively a valuable metal while efficiently removing phosphorus by a pyrometallurgy process from a waste lithium-ion battery.The present invention provides a method for recovering a valuable metal fr...
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JP2019131895A |
To provide a process for producing chromium iron alloys for steel making.In a process for producing chromium iron alloys suitable for steel making directly from chromite ore, fines of chromite ore with additions of carbon fines, an accel...
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JP2019112695A |
To provide a manufacturing method of a high melting point metal body capable of enhancing productivity of a high melting point metal ingot and further manufacturing the high melting point metal ingot at high purity, and the metal body.A ...
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JP2019099877A |
To provide a production method of a high melting point metal body having higher purity by carbon reduction.A production method of a high melting point metal body comprises placing a porous pedestal capable of supporting a molding contain...
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JP2019099834A |
To provide a method capable of manufacturing a pellet having good moldability and moderate strength at low cost and efficiently manufacturing metal by using the pellet in refining using pellets obtained by mixing an oxide ore and a carbo...
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JP6529802B2 |
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JP6524492B2 |
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JP6516264B2 |
To provide a copper refining slag treatment method suitable for recovering valuable metal from copper refining slag with high efficiency, and a copper refining slag treatment method suitable for removing a harmful substance from the copp...
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JP6510155B1 |
To provide a method for producing magnesium hydride having high production efficiency without carbon dioxide, a power generation system using magnesium hydride and not producing carbon dioxide or radiation, and an apparatus for producing...
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JP6502400B2 |
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JP6503353B2 |
A method (500) for producing a titanium product is disclosed. The method (500) can include obtaining TiO2-slag (501) and reducing impurities in the TiO2-slag (502) to form purified TiO2 (503). The method (500) can also include reducing t...
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JP2019052350A |
To provide a metal titanium manufacturing device and method capable of increasing titanium concentration of a recovery obtained in a previous process of a purification process compared to prior art.A metal titanium manufacturing device h...
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JP6492657B2 |
To provide a method in which, after performing oxidation treatment to a treatment object including at least rare earth and iron group element, a treatment environment is transited to an environment under presence of carbon, then heat tre...
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JP6487087B2 |
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JP6477371B2 |
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JP6477349B2 |
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JP6480357B2 |
To provide a method for treating an Sb-containing residue capable of recovering Sb from the Sb-containing residue effectively.A method for manufacturing a lead chloride leach residue includes an injection process for injecting the Sb-con...
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JP6470287B2 |
Disclosed in the invention is a method for separating zirconium oxide/hafnium oxide by pyrometallurgy. The mixture of zirconium oxide/hafnium oxide, carbon and pure bromine react one hour at 650°C to get the zirconium and hafnium bromid...
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JP6466869B2 |
An operation method of a copper-smelting furnace is characterized by including supplying an Fe metal source into a copper-smelting furnace together with a feeding material including copper concentrate and a flux, the copper concentrate i...
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JP6455359B2 |
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JP6455374B2 |
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JP2019007682A |
To provide a sunlight introduction port opening/closing structure of a grain heating type solar heat reduction furnace capable of surely opening/closing a sunlight introduction port even in a narrow region.Since a sunlight introduction p...
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JP2019007665A |
To provide a grain heating type solar heat reduction furnace that can evenly heat a plurality of retorts.A plurality of retorts 9 is arranged in an outer peripheral range C of a tank body 1 in a vertical state and air F present in a cavi...
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JP6451462B2 |
To provide a method for recovering chromium from a chromium-containing slag, in which reduction treatment of chromium contained in a slag is efficiently performed till concentration of CrObecomes low using an electric furnace with weak a...
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JP6447429B2 |
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