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JP5307335B2 |
Apparatus for producing molybdenum metal Apparatus includes a furnace that defines at least two heating zones of substantially equal length, the furnace maintaining each of the two heating zones at temperatures not greater than about 120...
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JP5296868B2 |
Disclosed is a method of producing ultra low phosphorus and carbon ferromanganese having 0.1 wt % or less carbon and 0.03 wt % or less phosphorus. The method includes preparing low carbon silicomanganese having low phosphorus content, pr...
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JP5297077B2 |
To provide a method for highly efficiently and inexpensively producing ferromolybdenum without using molybdenum ore or the like as a raw material, and to provide the ferromolybdenum produced by the production method. The method for produ...
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JP5291968B2 |
To provide a method for recovering a high purity ruthenium from a low concentrated ruthenium-contained material containing many elements except the ruthenium. This method for recovering the high purity ruthenium is performed through the ...
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JP5260065B2 |
To provide an apparatus for recovering vaporized zinc profitable to shorten an operating time without needing to be a high vacuum state from the atmospheric state of a scrap-accommodating chamber for accommodating the scrap. The vaporize...
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JP5259757B2 |
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JP5233001B2 |
In the production of metal valve powders, especially niobium and tantalum, the metal oxide powders are reduced by reduction metal vapors and/or their hydrides in an inert carrier gas. The reduction is at a partial vapor pressure of the r...
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JP5226700B2 |
A method for producing a pure metal M or metal alloy MxNy, of interest, which comprises electrolyzing a molten salt electrolyte of an alkali-metal or alkaline-earth metal halide AX or AX2, with an anode formed of graphite or made of a co...
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JP5224490B2 |
A method of processing flue dust that contains one or more compounds from a first group of zinc, lead and cadmium compounds, and contains iron compounds, involves heating the flue dust to cause a substantial portion of one or more of the...
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JP2013527306A |
The invention relates to a method for recovering lithium from a starting material comprising lithium. According to the invention, the starting material is heated with carbon in a reactor by carrying out direct inductive heating of the ca...
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JP2013127112A |
To provide a technique for improving separability between reduced iron and slag when producing the reduced iron and the slag which are obtained in such a semi-molten state that each of agglomerates is not completely molten.The method for...
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JP5223085B2 |
To provide a method for separating and refining rare metals by a chlorination volatilization method which provides a process in which a separation efficiency higher than a conventional process can be attained by combining addition of a c...
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JP5213119B2 |
[Subject] To efficiently reduce lead content of cement without exerting influence upon quality of the cement. [Means for Solution] The method comprises the steps of: controlling O 2 concentration of combustion gas in an inlet end of a ce...
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JP2013517376A |
A process and an apparatus for reducing charge materials containing iron ore or for producing pig iron or liquid primary steel products in a smelting unit are provided, the charge materials being at least partially reduced in at least on...
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JP5194111B2 |
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JP2013079443A |
To provide a method and device for efficiently collecting indium or an indium alloy from a high purity indium oxide-containing scrap that is generated when manufacturing or after using an indium-tin oxide (ITO) sputtering target.The meth...
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JP2013079449A |
To provide a method for recovering metallic chromium from slag which includes chromium oxide from converter process, such as AOD, MRP, AOD-L, MRP-L, CLU, ASM, Conarc-stainless steel or vacuum process, such as VOD, SS-VOD, RH, top blowing...
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JP2013076149A |
To provide a recycling system in which work burden on a rotary kiln is reduced and furthermore, reduced iron and zinc can be effectively taken out from soot and dust.The recycling system 10 includes: an electric furnace 12 which melts sc...
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JP5189873B2 |
To provide a reduction treatment apparatus which can prevent the decrease of the total zinc amount in zinc refinement, and to provide a reduction treatment method therefor. The reduction treatment apparatus 1 includes: a rotary kiln 2 wh...
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JP5183638B2 |
This invention relates to a single-step pyrometallurgical process for the recovery of non-ferrous metals from zinc bearing residues, in particular from by-products of the zinc and lead industry such as goethite and jarosite. A process fo...
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JP5167586B2 |
To provide a method for utilizing zinc-containing iron scraps by which, when utilizing the zinc-containing iron scraps as an iron source in an iron manufacturing process, zinc can be removed from the zinc-containing iron scraps by a simp...
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JP5160554B2 |
Provided is a method of producing high purity ytterbium, wherein the high purity ytterbium is obtained by reducing crude ytterbium oxide in a vacuum with reducing metals composed of metals having a low vapor pressure, and selectively dis...
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JP5157204B2 |
To effectively recover valuable metal with high concentration in burning raw material of low quality such as heavy oil and petrokokes containing plenty of metal. A method for burning raw material containing plenty of metal in a combustio...
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JP5149164B2 |
A method of recovering useful materials from a scrap of a rare earth-iron-boron magnet by which iron and boron can be recovered as ferroboron from the rare earth-iron-boron magnet scrap and the rare earth element can be efficiently recov...
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JP5143232B2 |
Methods of manufacturing Fe and Ni-containing material and Co-containing material from petrochemical desulfurization residue containing Fe and Co. The method includes: acid leaching of Fe and Co containing residue after theemoval of V an...
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JP5132155B2 |
A steelmaking process is disclosed. The process includes producing molten steel and molten steelmaking slag in a steelmaking process, the steelmaking slag including iron units and flux units, and thereafter producing molten iron in a mol...
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JP5132226B2 |
To provide a method by which high-purity ruthenium can be recovered at high recovery rate from a substance containing low-concentration ruthenium and also containing many elements in addition to ruthenium. Metal ruthenium is recovered fr...
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JP5124275B2 |
A method of producing a refractory metal powder that includes providing a metal powder containing magnesium tantalate or magnesium niobate; and heating the powder in an inert atmosphere in the presence of magnesium, calcium and/or alumin...
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JP5128494B2 |
The invention concerns a method for the continuous or discontinuous extraction of a metal or several metals from a slag that contains the metal or a compound of the metal, in which the liquefied metal-containing slag is heated in a prima...
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JP5121267B2 |
To provide a method for reducing not only Fe oxides or Ni oxide but also Cr oxides in a byproduct containing valuable metals including Cr, with carbon, by irradiating the byproduct with a microwave in a specific condition to locally and ...
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JP2013501138A |
In a process and apparatus for the reduction of metal oxides (3) to form metalized material by contact with hot reducing gas, which is produced at least partially by catalytic reformation of a mixture of a gas containing carbon dioxide (...
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JP2013501137A |
In a process and apparatus for the reduction of metal oxides to form metalized material by contact with hot reducing gas, which is produced at least partially by catalytic reformation of a mixture of—a gas containing carbon dioxide (CO...
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JP5112593B2 |
A molten-bath based direct smelting process and apparatus for producing metals from a ferrous material is disclosed. The process includes injecting feed materials being solid material and carrier gas into a molten bath at a velocity of a...
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JP2013002639A |
To provide a partition type reduction method for metallurgy and a facility for the same which is achieved in a purpose for saving energy and conserving a global environment by substantially reducing a time required for a rise and fall of...
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JP2012255215A |
To provide a direct smelting process and an apparatus therefor for producing a molten metal from an iron-containing material that can achieve a high efficiency for heat transfer.A feed material which includes a solid material and a carri...
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JP5110421B2 |
To provide a method for obtaining a crude Bi metal by removing Cu from a Bi-Cu metal having a Cu content of 5 to 30 mass%. In the method for recovering Bi, anhydrous sodium sulfide with a high melting point is added to a Bi-Cu metal in a...
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JP5101277B2 |
Graphite electrodes for the production of aluminum by carbothermic reduction of alumina are either submerged in the molten bath in the low temperature compartment or they are horizontally arranged in the side walls of the high temperatur...
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JP5103915B2 |
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JP5095082B2 |
The present invention relates to a method for the conveyance of fine-grained solids in a fluidized bed reactor and also to a corresponding plant. It is proposed to introduce a first gas or gas mixture from below through a central tube (3...
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JP5094031B2 |
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JP5094411B2 |
The invention is directed to a process for extracting a metal from a slag containing said metal, wherein the liquefied metal-containing slag is heated in at least one electric arc furnace (1, 2). In order provide an improved method for r...
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JP2012239945A |
To provide a lead removal method for lead containing glass which is excellent in efficiency by reducing the yield of lead chloride.The lead removal method for lead containing glass includes: a reductive dissolution process of melting cru...
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JP5091493B2 |
To provide a method for producing antimony oxide and the like, which can more precisely separate impurities from antimony, and can efficiently and surely reduce the impurities in a short period of time, by leaching antimony from an antim...
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JP5092615B2 |
To provide a slag-fuming method which can yield a dust that contains zinc, lead and little amount of arsenic, antimony and a halogen group element, and a slag that stably satisfies a standard for a soil environment at a high volatilizati...
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JP2012233261A |
To provide a method for utilizing a secondary raw material including iron, zinc, lead, and preferably, steelmaking dust, using slag adjusted to basicity in a rotary tubular furnace conventionally equipped for a rolling process.The raw ma...
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JP5086503B2 |
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JP5086657B2 |
A combustion method of a rotary hearth reducing furnace for suppressing the generation of nitrogen oxides in the rotary hearth reducing furnace to significantly reduce the emission amount is provided. In the rotary hearth reducing furnac...
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JP5086500B2 |
Evaluating steel works dust containing iron, zinc and lead comprises mixing and/or agglomerating the dust with a finely ground carbon carrier that can react. The amount of carbon compared with all carbon-consuming reactions is present st...
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JP5080704B2 |
In a product fabrication method, an artefact or electrode of a predetermined shape is treated by electrolysis in a fused salt to produce an electrolysis product remaining in the original shape. Artefacts or electrodes in shapes including...
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JP5078985B2 |
A method is provided for producing an agglomerated material that is used for producing metallic iron by heat reduction in a moving hearth-type reducing furnace, wherein the agglomerated material can have a high mechanical strength withou...
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