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WO/2021/223660A1 |
A process for smelting steel for an ultrafine carborundum wire, comprising: 1) in a vacuum induction furnace, using pure iron and low-phosphorus pig iron as raw materials to be melted into molten steel under the protection of argon; vacu...
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WO/2021/202914A1 |
A method for purifying lutetium includes providing a solid composition comprising ytterbium and lutetium and subliming or distilling ytterbium from the solid composition at a temperature of about 1196°C to about 3000°C to leave a lutet...
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WO/2021/186445A1 |
This invention is directed to a method for recovering valuable metals from spent lithium-ion- batteries using CO2/CO/H2O gas mixture, or CH4/air, or solid carbon or combination thereof.
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WO/2021/182452A1 |
The present invention provides a method for recovering lithium, and the like, said method for recovering lithium enabling recovery of lithium from a lithium ion secondary battery. This method for recovering lithium comprises: a heat trea...
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WO/2021/174727A1 |
Disclosed is a method for preparing a nickel-based deformed high-temperature alloy turbine disk forging for high temperature use. The alloy has high contents of solution strengthening elements W and Mo and strengthening phase, i.e. γ' p...
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WO/2021/165139A1 |
A device (1) for producing a target material from starting material comprises a chamber (2), at least one trough (3), at least a first heating element (4) being configured to heat the chamber (2) such that starting material is vaporized,...
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WO/2021/165225A1 |
A process for separating a fusion mix sample comprising a slag material and a collector material using a separator. The separator comprising a plurality of impact members configured to rotate. The process comprising the steps of providin...
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WO/2021/157483A1 |
Provided is a separation method for valuable resources, the method comprising: a heat treatment step for heat-treating an object containing valuable resources to melt aluminum and separate a molten material; a crushing step for crushing ...
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WO/2021/157628A1 |
The purpose of the present invention is to collect a high-quality Ti-Al based alloy in a highly efficient manner. Provided is a production method for a Ti-Al based alloy, wherein: a flux (α), which is composed of a calcium oxide contain...
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WO/2021/150302A1 |
A system and method that uses a high-temperature condenser to collect magnesium gas produced by thermal reduction, electrolysis, or distillation. The condenser is a common heat exchanger design (shell/tube, plate/plate, etc.) and uses a ...
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WO/2021/145292A1 |
An object is to provide a metal removal agent used when removing Mg from an aluminum alloy melt whose raw material is scrap or the like. The present invention provides a metal removal agent used for formation of a molten salt layer that ...
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WO/2021/145398A1 |
An object is to provide a method capable of efficiently removing Zn from an Al alloy melt obtained from scrap or the like. The present invention provides a metal purifying method for purifying an aluminum alloy melt by removing a specifi...
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WO/2021/134949A1 |
A hot-work die steel electroslag remelting ingot and a preparation method therefor. The electroslag remelting ingot comprises the following chemical components (wt%): C: 0.36-0.41%, Si: 0.80-1.10%, Mn: 1.00-3.00%, Cr: 4.90-5.40%, Mo: 1.3...
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WO/2021/135223A1 |
A crystallizer for metal electroslag remelting, an electroslag remelting device and an electroslag remelting method, belonging to the technical field of metal smelting and solving the problem that large electroslag ingots cannot be produ...
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WO/2021/134950A1 |
A feed method for an electroslag remelting furnace, comprising: placing a wire in a feeder (2), activating the feeder (2) such that the wire sequentially passes through a straightener (4) and an insulation sleeve (5), and then stopping t...
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WO/2021/134948A1 |
Provided are a wire feeding device and an electroslag furnace having same. The wire feeding device comprises a wire feeder (2), a lifter (3), an insulating sleeve (5), a length sensor (8), a position sensor (9), a weighing sensor (16) an...
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WO/2021/122974A1 |
A method for removing lead from brass scrap, said method comprising: - subjecting brass scrap comprising alloyed copper, zinc and lead to heating under reduced pressure at a temperature above the boiling point of lead at the reduced pres...
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WO/2021/101129A1 |
Disclosed are a membrane-based process and system capable of effectively concentrating and recovering lithium, which is contained in an aqueous solution or brine, within a short time by performing a nanofiltration step at the front end t...
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WO/2021/094646A1 |
The invention relates to a method for extracting metal from metal-containing raw material in a batch process by using a direct current electric arc furnace (100) having one or more than one top electrode (125) and at least one bottom ele...
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WO/2021/095731A1 |
Provided is a metal melting device (10) with which it is possible to obtain pure molten metal containing few oxides even when a scrap material and a new material are supplied in a mixed or independent manner. The aforementioned problem...
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WO/2021/077444A1 |
The present invention relates to the technical field of alloy processing. Disclosed is a processing technology for high-performance secondary aluminum based on the change of the morphology of an iron-rich phase, comprising the steps of: ...
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WO/2021/065886A1 |
The purpose of the present invention is to provide a Zr-Nb-based alloy material serving as a low-magnetic-susceptibility alloy that has high corrosion resistance while maintaining a magnetic susceptibility equal to or lower than that of ...
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WO/2021/044324A1 |
The present invention relates to a device (10) for increasing metal evaporation efficiency in containers (3), preferably for use in crucibles (3), in vacuum distillation systems, wherein at least a condenser (8) is provided, said device ...
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WO/2021/036225A1 |
Disclosed are a smelting process for a high-niobium high-temperature alloy large-size cast ingot, and a high-niobium high-temperature alloy large-size cast ingot. The smelting process comprises: carrying out vacuum induction smelting to ...
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WO/2021/036226A1 |
Provided are a large-size high-niobium and high-temperature 706 alloy ingot and a smelting process thereof, wherein the smelting process includes: vacuum induction smelting to obtain multiple vacuum induction ingots with the same composi...
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WO/2021/033692A1 |
One aspect of the present disclosure provides a premelted flux wherein the content of CaO crystal phase is 1.0% by mass or less.
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WO/2021/017661A1 |
A method for preparing a high-purity nickel-based high-temperature alloy using an electron beam induced refining and casting technology, comprising the steps of: once an electron gun (1) is preheated, carrying out electron beam melting o...
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WO/2021/010311A1 |
The present invention provides a method for producing low carbon ferrochromium, said method being capable of improving the chromium yield, while being capable of preventing the formation of harmful hexavalent chromium in a slag to be dis...
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WO/2021/010312A1 |
Provided is a slag detoxification method for preventing generation of toxic hexavalent chromium in slag waste. A reducing agent and slag containing chromium oxide are introduced to an electric furnace, the slag is reduced by the reducing...
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WO/2021/010313A1 |
The present invention provides a method for producing low carbon ferrochromium, said method being capable of reducing the electric power consumption rate by increasing the mass ratio of additionally charged chromium ore with respect to a...
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WO/2021/005566A1 |
A process for producing metal aluminum, and optionally other metals, starting from aluminum compounds containing oxygen and possibly other metals, by means of a chemical reduction reaction of the aluminum carried out in a reaction chambe...
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WO/2020/263517A1 |
A method and system for recovering a high yield of low carbon ferrochrome from chromite and low carbon ferrochrome produced by the method. A stoichiometric mixture of feed materials including scrap aluminum granules, lime, silica sand, a...
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WO/2020/260524A1 |
Method to remove copper from a bath (10) of molten metal material, by using a reactive additive to remove copper from a bath (10) of molten metal material and applying a depression.
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WO/2020/255475A1 |
This electrolytic smelting furnace is provided with: a plurality of electrolytic furnaces aligned vertically; connecting pipes that extend vertically and allow the bottom surface of an upper electrolytic furnace to communicate with a low...
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WO/2020/255468A1 |
This electrolytic smelting system (100) is provided with: an electrolytic smelting furnace (1) having a furnace body (10) in which a molten ore (Wm) is introduced, a negative electrode substrate (11) provided on the bottom part (10B) ins...
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WO/2020/255465A1 |
The present invention comprises: a furnace into which iron ore is introduced; a furnace floor electrode provided on the furnace floor inside the furnace; and a plurality of upper electrodes that are provided above the furnace floor elect...
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WO/2020/245542A1 |
Device for degassing liquid metal comprising an enclosure containing a bath of liquid metal, a device for circulating a gas through a purification chamber and in that the purification chamber comprises a getter material configured to tra...
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WO/2020/232559A1 |
A method of removing hydrogen interstitially dissolved within an object can include: positioning a sorption pad having a contact surface and comprising a sorptive material; urging the contact surface into metallurgical contact with the f...
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WO/2020/236424A1 |
A method of producing enriched 47Sc comprises irradiating a V structure comprising 51V with at least one incident photon beam having an endpoint energy within a range of from about 14 MeV to about 44 MeV to convert at least some of the 5...
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WO/2020/235579A1 |
Provided is a melting furnace that minimizes oxidation of molten material and with which it is possible to improve the quality of a molten material. As shown in fig. 3, this melting furnace 1 is provided with: a melting part 2 to which a...
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WO/2020/232152A1 |
A degassing launder having a plurality of partition plates configured to block a flow of molten aluminum and including a plurality of domes. Two adjacent partition plates and two side walls of the launder form a degassing chamber. A lowe...
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WO/2020/221440A1 |
The subject matter of the invention is a process for oxidatively refining crude molten silicon in the preparation of industrial-grade silicon, in which process during the refining stage a particulate mediator is added that contains a min...
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WO/2020/221439A1 |
The subject matter of the invention is a process for oxidatively refining crude molten silicon in the preparation of industrial-grade silicon, in which process during the refining stage a fine-particle mediator with a particle size param...
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WO/2020/222859A1 |
PGM converting process and jacketed rotary converter. The process can include low- or no-flux converting; partial pre-oxidation of PGM collector alloy; using a refractory protectant in the converter; magnetic separation of slag; recyclin...
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WO/2020/218237A1 |
This dross generation suppression method involves: setting an environmental atmosphere, in which a metal-containing object is placed, to a condition of having a water content less than that of the air environment of the periphery of the ...
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WO/2020/217572A1 |
This agitator (50), which is attached to a rotary drive shaft (43), agitates a molten aluminum alloy, and supplies a processing gas (G), comprises: a cylindrical housing (51) which has a base end side attached to a cylindrical part (45) ...
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WO/2020/209330A1 |
Provided is a solder product 20 containing: a lead-free solder section 21 that comprises tin as a main component and a metal element other than lead as a secondary component; and a carboxylic acid that has 10-20 carbon atoms and is distr...
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WO/2020/192977A1 |
The invention relates to a method for producing a PGM collector alloy, comprising the steps: (1) providing (a) copper and/or silver, (b) material to be processed by melting metallurgy, in the form of at least one sodium and/or potassium ...
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WO/2020/195840A1 |
This flux is used in an electro-slag remelting process. When the water content of said flux as determined by the Karl Fischer method is denoted by W, and the change in the water content after leaving alone said flux in an environment of ...
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WO/2020/196879A1 |
The purpose of the present invention is to provide an alloy composition that has a sufficient melting point with respect to casting of an aluminum alloy, and that has a high level of hardness and can suppress the occurrence of galling. T...
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