[go: up one dir, main page]

WO2024054653A2 - Systèmes et procédés de traitement d'un métal de transition métallique particulaire - Google Patents

Systèmes et procédés de traitement d'un métal de transition métallique particulaire Download PDF

Info

Publication number
WO2024054653A2
WO2024054653A2 PCT/US2023/032324 US2023032324W WO2024054653A2 WO 2024054653 A2 WO2024054653 A2 WO 2024054653A2 US 2023032324 W US2023032324 W US 2023032324W WO 2024054653 A2 WO2024054653 A2 WO 2024054653A2
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
particulate metallic
transition metal
valve
equal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2023/032324
Other languages
English (en)
Other versions
WO2024054653A3 (fr
Inventor
Jr. Thomas Anthony VILLALON
Ryan Roberts MCKEOWN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Phoenix Tailings Inc
Original Assignee
Phoenix Tailings Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Phoenix Tailings Inc filed Critical Phoenix Tailings Inc
Priority to TW112143523A priority Critical patent/TW202510986A/zh
Publication of WO2024054653A2 publication Critical patent/WO2024054653A2/fr
Publication of WO2024054653A3 publication Critical patent/WO2024054653A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/05—Metallic powder characterised by the size or surface area of the particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product

Definitions

  • the present disclosure is directed to systems and methods for processing particulate metallic transition metal (e.g., iron). Certain aspects are related to the separation of a gas from particulate metallic transition metal (e.g., iron). Certain aspects are related to the formation of a bulk solid transition metal (e.g., iron) article.
  • the subject matter of the present disclosure involves, in some cases, interrelated products, alternative solutions to a particular problem, and/or a plurality of different uses of one or more systems and/or articles.
  • the method comprises a method of forming a bulk solid iron article. In some embodiments, the method comprises heating and/or pressing particulate metallic iron to form the bulk solid iron article, wherein the bulk solid iron article has a maximum cross-sectional dimension of greater than or equal to 20 millimeters, wherein at least 50 volume percent of the particles of the particulate metallic iron has a maximum cross-sectional dimension of less than or equal to 100 microns.
  • the method comprises a method of forming a bulk solid iron article. In some embodiments, the method comprises heating and/or pressing particulate metallic iron to form a briquette having a maximum cross-sectional dimension of greater than or equal to 20 millimeters, wherein at least 80 volume percent of the particles of the particulate metallic iron has a maximum cross-sectional dimension of less than or equal to 100 microns.
  • the method comprises separating a gas from particulate metallic iron, wherein at least 50 volume percent of the particles of the particulate metallic iron has a maximum cross-sectional dimension of less than or equal to 100 microns.
  • the method comprises separating a gas from particulate metallic iron, wherein at least 80 volume percent of the particles of the particulate metallic iron has a maximum cross-sectional dimension of less than or equal to 100 microns.
  • the system comprises a chamber comprising baffles configured to direct particulate metallic transition metal to the base of the chamber; a first valve upstream of the chamber configured to allow flow of particulate metallic transition metal and a gas into the chamber; a second valve downstream of the first valve, at or above the ceiling of the chamber, and configured to allow flow of the gas out of the chamber; and a third valve downstream of the first valve, at or below the base of the chamber, and configured to allow flow of particulate metallic transition metal out of the chamber.
  • the system comprises a chamber; a magnet (e.g., electromagnet) configured to direct the movement of particulate metallic iron to an outlet of the chamber; a first valve upstream of the chamber configured to allow flow of particulate metallic iron and a gas into the chamber; a second valve downstream of the first valve, at or above the ceiling of the chamber, and configured to allow flow of the gas out of the chamber; and a third valve downstream of the first valve, located within the outlet and located at or below the base of the chamber, and configured to allow flow of particulate metallic iron out of the chamber.
  • a magnet e.g., electromagnet
  • FIGS. 1A-1G are cross-sectional schematic illustrations of systems configured to process particulate metallic transition metal (e.g., iron), according to certain embodiments.
  • particulate metallic transition metal e.g., iron
  • FIG. 2 is a flow diagram of an illustrative method of processing particulate metallic iron, according to certain embodiments.
  • FIG. 3 is a schematic illustration of a system configured to process particulate metallic transition metal (e.g., iron), according to certain embodiments.
  • particulate metallic transition metal e.g., iron
  • FIG. 4 is a schematic illustration of a system suitable for forming a particulate metallic transition metal, separating it from a gas, and forming a bulk solid transition metal article therefrom, according to certain embodiments.
  • FIG. 5 is a schematic illustration of an exemplary furnace comprising two ports, according to certain embodiments.
  • FIG. 6 is a schematic illustration of a briquetting subsystem comprising a flat press and rollers.
  • a chamber is configured to contain air sensitive and/or pyrophoric material, e.g., particulate metallic transition metal (e.g., direct reduced iron (DRI) powder) under inert conditions after it is reduced in a high temperature furnace, before it is then conveyed to a press (e.g., to be formed into hot briquetted iron (HBI)).
  • particulate metallic transition metal e.g., direct reduced iron (DRI) powder
  • a press e.g., to be formed into hot briquetted iron (HBI)
  • HBI hot briquetted iron
  • methods described herein do not involve an intermediate step that is usually performed before reduction in the traditional production of DRI, namely, a step wherein the iron powder is compressed into small pellets on the order of 1 to 25 mm (e.g., 6 to 25 mm) and held in a batch container before being transferred to a briquetting process.
  • a high temperature e.g., at least 200 °C and up to, potentially, 800 °C
  • the powder can be used as a direct input for the briquetting process without the need for reheating.
  • methods described herein may thus significantly streamline the HBI production process while increasing the energy efficiency through the mitigation of thermal losses.
  • the MIDREX® process is not applied to produce DRI and post-process it into HBI or some other form.
  • the chamber is configured to process powder rather than pellet form, much higher temperatures (e.g., -700 °C or higher) are not required. Such temperatures are generally required in previous processes in order to have the reducing gas penetrate pellets and form DRI.
  • an inert gas atmosphere is employed.
  • the system comprises a chamber (e.g., a cylindrical chamber, a cuboid chamber, a parallelepiped chamber, or a chamber of another shape), with its central axis aligned vertically, along the direction that gravity acts.
  • a chamber e.g., a cylindrical chamber, a cuboid chamber, a parallelepiped chamber, or a chamber of another shape
  • Newly formed particulate metallic transition metal e.g., DRI
  • This bulk incoming particulate metallic transition metal e.g., DRI powder
  • This bulk incoming particulate metallic transition metal may have a particle size below -100 pm at a temperature of approximately 500 °C.
  • the particulate metallic transition metal (e.g., DRI) gas within the container is sealed and purged in inert conditions, e.g., argon gas and/or nitrogen gas.
  • the particulate metallic transition metal (e.g., DRI) is transported by a conveyor (e.g., a sloped floor and/or or a magnet (e.g., permanent magnet, electromagnet)) to the briquetting process further downstream, e.g., in a continuous manner.
  • the chamber may, in some embodiments, not be pressurized.
  • the inflow of argon and/or nitrogen may be coupled with an exhaust gas outlet.
  • the integrity of the seals for the chamber are maintained as leak-free as possible, as any leaks of oxygen into this environment with bulk quantities of particulate metallic transition metal (e.g., DRI powder) may result in the rapid production of heat, through oxidation.
  • particulate metallic transition metal e.g., DRI powder
  • the chamber can sustain a wide range of internal temperatures.
  • the chamber operates at a spatially averaged temperature (taken as the spatial average of the temperature within the volume of the container) of at least 200 °C, at least 300 °C, or at least 400 °C. In some embodiments, the chamber operates at a spatially averaged temperature of less than or equal to 800 °C, less than or equal to 700 °C, or less than or equal to 600 °C. Combinations of the above-referenced ranges are also possible (e.g., at least 200 °C and less than or equal to 800 °C, at least 300 °C and less than or equal to 700 °C, at least 400 °C and less than or equal to 600 °C). Other ranges are also possible.
  • the chamber operates at a maximum temperature (taken as the maximum temperature within the volume of the container) of at least 200 °C, at least 300 °C, or at least 400 °C. In some embodiments, the chamber operates at a maximum temperature of less than or equal to 800 °C, less than or equal to 700 °C, or less than or equal to 600 °C. Combinations of the above-referenced ranges are also possible (e.g., at least 200 °C and less than or equal to 800 °C, at least 300 °C and less than or equal to 700 °C, at least 400 °C and less than or equal to 600 °C). Other ranges are also possible.
  • localized active cooling elements are implemented around all seals and gaskets to prevent them from melting. This may be achieved through cooling fans on the outer components of the chamber near the seals and internally through embedded heat exchangers that draw heat from the regions around the seals.
  • the rest of the chamber body may be insulated to mitigate any thermal losses from the particulate metallic transition metal (e.g., DRI) pile before it is transferred to the briquetting process, which may be carried out at a temperature of, e.g., -650 °C.
  • the particulate metallic transition metal e.g., DRI
  • the particulate metallic transition metal e.g., iron
  • active and/or passive measures can be implemented to ensure that the particulate metallic transition metal (e.g., DRI) remain settled at the bottom of the chamber.
  • the internal walls of the chamber may be patterned with baffles, which may redirect the flow of inert gas in a large-scale vortical motion.
  • This cyclonic motion through the chamber may drive the denser particulate metallic transition metal (e.g., DRI) particles toward the walls of the chamber.
  • a series of magnets e.g., permanent magnets, electromagnets
  • a magnetic field e.g., a pulsed, large-scale magnetic field
  • a series of filters and water traps may be installed at the exhaust to capture any remaining particulate metallic transition metal (e.g., DRI) particles that are inadvertently swept up in the exhaust flow.
  • some (e.g., all) mechanical elements of this system comprise (e.g., consist of) stainless steel (e.g., 304, 316, or some comparable alloy).
  • valves and other instrumentation comprise (e.g., consist of) stainless steel construction (e.g., 304, 310, 316, or some comparable alloy).
  • the seals, O-rings, and gaskets may comprise (e.g., consist of) high temperature rated silicone, which, in conjunction with various modalities of active cooling, may be able to withstand the high temperature environment of the contained particulate metallic transition metal (e.g., DRI) without melting.
  • the body of the chamber may be insulated with alumina silicate insulating bricks and/or Fiberfrax® insulation.
  • methods described herein do not comprise, prior to briquetting, additional processes implemented to form particulate metallic transition metal (e.g., DRI) pellets, reheat them after they are formed, and convey the pellets to the briquetting step.
  • methods and systems described herein streamline this complicated process by directly holding the particulate metallic transition metal (e.g., DRI) powder once it is formed and maintaining it at a high temperature, which may facilitate the briquetting process.
  • metallic transition metal (e.g., DRI) fines may more efficiently facilitate the addition of binders or other additives (e.g., bentonite or kaolin) for briquetting.
  • FIG. 2 is a flow diagram of examples of such methods (e.g., method 600).
  • the method comprises separating a gas from particulate metallic transition metal (e.g., iron).
  • the gas may comprise a reducing gas (e.g., H2), a noble gas (e.g., argon, nitrogen), water vapor, and/or CO2.
  • separating the gas from the particulate metallic iron comprises opening a first valve to allow flow of particulate metallic iron and a gas into a chamber. In some embodiments, separating the gas from the particulate metallic iron further comprises opening a second valve downstream of the first valve, at or above the ceiling of the chamber, to allow flow of the gas out of the chamber. In some embodiments, the method further comprises opening a third valve downstream of the first valve, at or below the base of the chamber, to allow flow of particulate metallic iron out of the chamber. In some embodiments, the method comprises closing the first valve and the second valve before opening the third valve.
  • a gas from a particulate metallic transition metal in a manner in which the first valve is left open to allow for continuous flow of the particulate metallic transition metal and the gas into the chamber, the second valve is left open to allow for continuous flow of the gas out of the chamber and/or continuous access to the water trap, and the third valve is opened and closed as needed to feed a system component downstream from the chamber (e.g., a further chamber in which briquetting and/or the formation of a bulk solid metallic article is performed, a further chamber in which one or more steps performed during the foregoing processes are performed, and/or a further chamber in which the particulate metallic transition metal is stored prior to the performance of one or more of the foregoing processes).
  • a system component downstream from the chamber e.g., a further chamber in which briquetting and/or the formation of a bulk solid metallic article is performed, a further chamber in which one or more steps performed during the foregoing processes are performed, and/or a further chamber in which the particulate metallic transition metal is
  • Continuous flow may comprise flow such that there is no appreciable interruption and/or step change in flow rate during the relevant process.
  • a relatively high amount of a gas employed in the formation of the particulate metallic transition metal e.g., a reducing gas
  • a gas employed in the formation of the particulate metallic transition metal is introduced into the chamber via the first valve.
  • Flow of the particulate metallic iron out of the chamber may comprise flowing the particulate metallic iron into a second chamber comprising inert gas.
  • the inert gas may comprise CO2, N2, noble gas(es) (e.g., argon), and/or any other inert gas.
  • wt% weight percent
  • wt% weight percent
  • 0.01 wt% less than 0.01 wt%
  • 0.001 wt% or less of the inert gas reacts with the particulate transition metal (e.g., particulate metallic iron).
  • separating a gas from particulate metallic transition metal comprises flowing a combined flow of the gas and the particulate metallic iron adjacent to baffles within a chamber such that the particulate metallic transition metal (e.g., iron) is directed toward the base of a chamber and away from an outlet of the chamber (e.g., the outlet at or above the ceiling of the chamber), and the gas is directed to the outlet.
  • particulate metallic transition metal e.g., iron
  • the method comprises moving the particulate metallic transition metal (e.g., iron) to a press in an inert (e.g., N2, CO2) atmosphere.
  • Moving the metallic transition metal particles to the inert atmosphere may comprise performing a transfer process in which the metallic transition metal particles are flowed into a container while exposed to the flow of an inert gas.
  • the gas flow may have a variety of suitable values.
  • the combined flow of the gas and the particulate transition metal may occur during a process in which the particulate transition metal is separated from the gas and/or during a process in which the particulate transition metal is transferred to an inert atmosphere.
  • the gas flow is less than or equal to 10 L/(min*kg of particulate metallic transition metal), less than or equal to 7.5 L/(min*kg of particulate metallic transition metal), less than or equal to 5 L/(min*kg of particulate metallic transition metal), less than or equal to 2 L/(min*kg of particulate metallic transition metal), less than or equal to 1 L/(min*kg of particulate metallic transition metal), less than or equal to 750 mL/(min*kg of particulate metallic transition metal), less than or equal to 500 mL/(min*kg of particulate metallic transition metal), less than or equal to 200 mL/(min*kg of particulate metallic transition metal), less than or equal to 100 mL/(min*kg of particulate metallic transition metal), less than or equal to 75 mL/(min*kg of particulate metallic transition metal), less than or equal to 50 mL/(min*kg of particulate metallic transition metal), or less than or equal to 20 mL/(
  • the gas flow is greater than or equal to 10 mL/(min*kg of particulate metallic transition metal), greater than or equal to 20 mL/(min*kg of particulate metallic transition metal), greater than or equal to 50 mL/(min*kg of particulate metallic transition metal), greater than or equal to 75 mL/(min*kg of particulate metallic transition metal), greater than or equal to 100 mL/(min*kg of particulate metallic transition metal), greater than or equal to 200 mL/(min*kg of particulate metallic transition metal), greater than or equal to 500 mL/(min*kg of particulate metallic transition metal), greater than or equal to 750 mL/(min*kg of particulate metallic transition metal), greater than or equal to 1
  • each gas may independently have a gas flow rate in one or more of the above-described ranges and/or all of the gases together may have a flow rate in one or more of the above-described ranges.
  • a gas is separated from a particulate metallic transition metal with a relatively high efficiency.
  • the gas may be separated from the particulate transition metal such that the gas separated from the particulate transition metal makes up less than or equal to 10 wt% of the gases with which the transition metal exits the separation process, less than or equal to 9 wt% of the gases with which the transition metal exits the separation process, less than or equal to 8 wt% of the gases with which the transition metal exits the separation process, less than or equal to 7 wt% of the gases with which the transition metal exits the separation process, less than or equal to 6 wt% of the gases with which the transition metal exits the separation process, less than or equal to 5 wt% of the gases with which the transition metal exits the separation process, less than or equal to 4 wt% of the gases with which the transition metal exits the separation process, or less than or equal to 3 wt% of the gases with which the transition metal exits the separation process.
  • the gas may be separated from the particulate transition metal such that the gas separated from the particulate transition metal makes up greater than or equal to 2 wt% of the gases with which the transition metal exits the separation process, greater than or equal to 3 wt% of the gases with which the transition metal exits the separation process, greater than or equal to 4 wt% of the gases with which the transition metal exits the separation process, greater than or equal to 5 wt% of the gases with which the transition metal exits the separation process, greater than or equal to 6 wt% of the gases with which the transition metal exits the separation process, greater than or equal to 7 wt% of the gases with which the transition metal exits the separation process, greater than or equal to 8 wt% of the gases with which the transition metal exits the separation process, or greater than or equal to 9 wt% of the gases with which the transition metal exits the separation process. Combinations of the above-referenced ranges are also possible (e.g., less than or equal to 10 wt% and greater than or equal
  • the flow of a gas and/or a particulate transition metal during a transfer of the particulate transition metal from one vessel to another is continuous.
  • the method comprises a method of forming a bulk solid transition metal (e.g., iron) article.
  • the method may comprise heating and/or pressing (e.g., in a press) particulate metallic transition metal (e.g., iron) to form a briquette.
  • the temperature to which the particulate metallic transition metal is heated during formation of a bulk solid transition metal article therefrom may be selected as desired.
  • a particulate metallic transition metal is heated to a temperature of at least 200 °C, at least 300 °C, or at least 400 °C.
  • a particulate metallic transition metal is heated to a temperature of less than or equal to 800 °C, less than or equal to 700 °C, or less than or equal to 600 °C.
  • the pressure applied to a particulate metallic transition metal during formation of a bulk solid transition metal article therefrom may be selected as desired.
  • a pressure of less than or equal to 200 kN/cm, less than or equal to 175 kN/cm, less than or equal to 150 kN/cm, less than or equal to 125 kN/cm, less than or equal to 100 kN/cm, less than or equal to 75 kN/cm, less than or equal to 50 kN/cm, or less than or equal to 25 kN/cm is applied to a particulate metallic transition metal.
  • a bulk solid transition metal article such as a briquette, has a relatively large maximum cross-sectional dimension, such as a maximum cross- sectional dimension of greater than or equal to 20 millimeters (and/or, in some embodiments, greater than or equal to 30 millimeters, greater than or equal to 40 millimeters, greater than or equal to 50 millimeters, greater than or equal to 60 millimeters, greater than or equal to 70 millimeters, greater than or equal to 80 millimeters, greater than or equal to 90 millimeters, greater than or equal to 100 millimeters, greater than or equal to 125 millimeters, greater than or equal to 150 millimeters, or greater, and/or less than or equal to 1 meter, less than or equal to 50 centimeters, less than or equal to 250 millimeters, less than or equal to 150 millimeters, less than or equal to 140 millimeters, or less).
  • a bulk solid transition metal (e.g., iron) article such as a briquette, has a root mean square surface roughness that is indicative of its formation from particulate metallic transition metal particles having sizes described herein.
  • a bulk solid transition metal article has a root mean square surface roughness of greater than or equal to 20 microinches, greater than or equal to 50 microinches, greater than or equal to 75 microinches, greater than or equal to 100 microinches, greater than or equal to 150 microinches, greater than or equal to 200 microinches, greater than or equal to 300 microinches, greater than or equal to 400 microinches, greater than or equal to 500 microinches, greater than or equal to 600 microinches, greater than or equal to 700 microinches, or greater than or equal to 800 microinches.
  • a bulk solid transition metal article has a root mean square surface roughness of less than or equal to 900 microinches, less than or equal to 800 microinches, less than or equal to 700 microinches, less than or equal to 600 microinches, less than or equal to 500 microinches, less than or equal to 400 microinches, less than or equal to 300 microinches, less than or equal to 200 microinches, less than or equal to 150 microinches, less than or equal to 100 microinches, less than or equal to 75 microinches, or less than or equal to 50 microinches.
  • Combinations of the above-referenced ranges are also possible (e.g., greater than or equal to 20 microinches and less than or equal to 900 microinches, or greater than or equal to 200 microinches and less than or equal to 700 microinches). Other ranges are also possible.
  • the surface roughness of a bulk solid transition metal article may be measured with the use of a roughness meter.
  • At least 50 volume percent (vol%) and/or at least 80 volume percent (vol%) of the particles of the particulate metallic transition metal (e.g., iron) have a maximum cross-sectional dimension that is relatively small.
  • at least 50 vol% and/or at least 80 vol% of the particles of the particulate metallic transition metal (e.g., iron) have a maximum cross-sectional dimension of less than or equal to 20 micrometers and/or less than or equal to 100 micrometers.
  • at least 50 vol% and/or at least 80 vol% of the particulate metallic transition metal material is made up of particles having maximum cross-sectional dimensions of less than or equal to 20 micrometers and/or less than or equal to 100 micrometers.
  • At least 85 vol%, at least 90 vol%, at least 95 vol%, at least 99 vol%, at least 99.9 vol%, at least 99.99 vol%, or up to 100 vol% of the particles of the particulate metallic transition metal (e.g., iron) have a maximum cross- sectional dimension of less than or equal to 20 micrometers and/or less than or equal to 100 micrometers.
  • the “maximum cross-sectional dimension” of a particle refers to the largest distance that spans two outer boundaries of the particle. In the case of a perfect sphere, the maximum cross-sectional dimension is the diameter of the sphere.
  • particles having a maximum cross-sectional dimension of less than or equal to 100 micrometers may be particularly challenging to process (e.g., to form bulk solid transition metal articles, such as briquettes, therefrom). It is believed that such particles, because of their high surface area to volume ratio, may be particularly susceptible to undergoing appreciable oxidation. Such oxidation may make it challenging to retain the metallic nature of the particles and/or may generate sufficient heat to present an undesirably high risk of fire.
  • bulk metallic articles formed directly from particles having such small cross-sectional dimension i.e., without an intermediate step in which the particles are coarsened
  • the particulate metallic transition metal has a relatively high metallization percentage.
  • the particulate metallic transition metal e.g., iron
  • the metallization percentage refers to the mol% of the transition metal material that remains in metallic form (as opposed to a compound form such as an oxide).
  • FIG. 2 is a flow diagram of an illustrative method 600 of processing particulate metallic iron, according to certain embodiments.
  • method 600 comprises step 640, separating a gas from particulate metallic transition metal (e.g., iron).
  • method 600 comprises step 642, moving the particulate metallic transition metal (e.g., iron) into an inert gas environment.
  • method 600 comprises step 644, heating and/or pressing the particulate metallic transition metal (e.g., iron; e.g., to form a briquette).
  • method 600 comprises performing step 640, followed by step 642, followed by 644. Some methods may further comprise step 646 of forming a particulate metallic transition metal.
  • forming a briquette comprises forming a green body from the particulate metallic transition metal and then subjecting the green body to one or more processes to ultimately form the briquette.
  • the green body may be formed by heating and/or pressing the particulate metallic transition metal in an inert atmosphere.
  • the particulate metallic transition metal may be pressed without heating (e.g., at room temperature).
  • pressing a particulate metallic transition metal is performed with the use of a uniaxial press.
  • the pressure applied with the uniaxial press may be greater than or equal to 3.45 MPa, greater than or equal to 5 MPa, greater than or equal to 7.5 MPa, greater than or equal to 10 MPa, greater than or equal to 15 MPa, greater than or equal to 20 MPa, greater than or equal to 25 MPa, or greater than or equal to 30 MPa.
  • the pressure applied with the uniaxial press may be less than or equal to 34.47 MPa, less than or equal to 30 MPa, less than or equal to 25 MPa, less than or equal to 20 MPa, less than or equal to 15 MPa, less than or equal to 10 MPa, less than or equal to 7.5 MPa, or less than or equal to 5 MPa. Combinations of the above-referenced ranges are also possible (e.g., greater than or equal to 3.45 MPa and less than or equal to 34.47 MPa). Other ranges are also possible.
  • a green body is formed into a briquette by applying further pressure thereto.
  • This a green body may be pressed without heating (e.g., at room temperature).
  • Pressing a green body may take the form of feeding the green body through rollers that apply pressure thereto.
  • the rollers may apply a pressure of greater than or equal to 10 kN/cm, greater than or equal to 20 kN/cm, greater than or equal to 50 kN/cm, greater than or equal to 75 kN/cm, greater than or equal to 100 kN/cm, greater than or equal to 125 kN/cm, greater than or equal to 150 kN/cm, or greater than or equal to 175 kN/cm.
  • the rollers may apply a pressure of less than or equal to 200 kN/cm, less than or equal to 175 kN/cm, less than or equal to 150 kN/cm, less than or equal to 125 kN/cm, less than or equal to 100 kN/cm, less than or equal to 75 kN/cm, less than or equal to 50 kN/cm, or less than or equal to 20 kN/cm. Combinations of the abovereferenced ranges are also possible (e.g., greater than or equal to 10 kN/cm and less than or equal to 200 kN/cm). Other ranges are also possible.
  • a method comprises forming a particulate metallic transition metal.
  • the particulate transition metal may be formed from a precursor particulate material comprising the transition metal in a non-elemental form, such as a ceramic comprising cations of the transition metal (e.g., red mud, such as chemically treated red mud; hematite).
  • the precursor particulate material may be subject to a chemical process, such as a reducing process, to form the particulate transition metal and/or to form a particulate material in which a relatively high percentage of the transition metal is in elemental form. This may be accomplished by exposure to a reducing gas, such as hydrogen gas.
  • a gas separated from a particulate transition metal comprises a gas employed during a process in which the particulate transition metal is formed from a precursor particulate material, such as a reducing gas (e.g., hydrogen).
  • a particulate metallic transition metal prepared by the above-described process may have a particle size distribution (e.g., including the vol% of particles having particular maximum cross-sectional dimensions) that are relatively similar to and/or are identical to the particle size distribution of the precursor particulate material.
  • the steps described in the preceding two paragraphs may be performed in any appropriate vessel, such as furnace and/or a reactor.
  • it may be desirable to transport a particulate metallic transition metal formed by this process to another type of vessel for one or more further steps, such as one or more of the further steps shown in FIG. 2.
  • This transport may comprise performing step 642 shown in FIG. 2.
  • it may be desirable to perform a heating and/or pressing step in an inert gas environment, such as a glove box, and so it may be desirable to move the particulate metallic transition metal into the inert gas environment.
  • Such transfer may be performed by transporting the particulate metallic transition metal from the vessel in which it is formed into a container in the presence of an inert environment and/or in the presence of an environment in which it is exposed to the flow of an inert gas. In some embodiments, such transfer is effected with the use of a feed screw.
  • the container itself may have an inert gas environment and/or may be employed to further transport the particulate metallic transition metal to a different container having an inert gas environment.
  • FIG. 1A and FIG. 1C are cross-sectional schematic illustrations of examples of such systems (e.g., system 100, system 200).
  • the system comprises a chamber.
  • the chamber may serve to receive a particulate transition metal and serve as a reservoir that holds the particulate transition metal prior to the formation of a bulk solid transition metal article therefrom, such as via a briquetting process.
  • the chamber received the particulate transition metal after its formation, such as after a reducing process by which it is formed.
  • the chamber comprises baffles configured to direct particulate metallic transition metal (e.g., iron) to the base of the chamber.
  • the baffles are positioned such that they form an angle that is greater than or equal to 30° and/or less than or equal to 65°, relative to the top of the chamber.
  • the baffles extend down a distance from the top of the chamber that extends at least 30% and/or less than or equal to 75% of the height of the chamber.
  • the baffles are in the form of plates extending downward from the top of the chamber.
  • the system comprises a first valve upstream of the chamber configured to allow flow of particulate metallic transition metal (e.g., iron) and a gas into the chamber.
  • the system comprises a second valve downstream of the first valve, at or above the ceiling of the chamber, and configured to allow flow of the gas out of the chamber.
  • the system comprises a third valve downstream of the first valve, at or below the base of the chamber, and configured to allow flow of particulate metallic transition metal (e.g., iron) out of the chamber.
  • the third valve is located within an outlet of the chamber.
  • the third valve may supply a further vessel, such as a further vessel comprising an inert atmosphere, in which the particulate metallic transition metal is subjected to one or more steps performed during the formation of a bulk solid transition metal article and/or is stored prior to the performance of such step and/or steps. It is also possible for the third valve to supply one or more gases to the chamber in which the particulate metallic transition metal is separated from a gas. For instance, the third valve may supply such a chamber with an inert gas. Supplying an inert gas via the third valve may advantageously assist with separating the gas in the chamber and/or preventing undesirable gases (e.g., reducing gases supplied with the particulate metallic transition metal) from leaving the chamber through the third valve.
  • undesirable gases e.g., reducing gases supplied with the particulate metallic transition metal
  • a system comprises a fourth valve upstream of the first valve.
  • the fourth valve may serve as a purge valve.
  • such a valve may be employed to introduce an inert gas to the gas and particulate metallic transition metal prior to its flow past the first valve. This may be beneficial in scenarios where, upstream from the first valve, a concentration of one or more non-inert gases (e.g., one or more reducing gases) is undesirably high.
  • a particulate metallic transition metal is flowing upstream of the first valve in the presence of a relatively high amount of a reducing gas, such as an amount that would make the separation of the particulate metallic transition metal therefrom challenging to perform or that would introduce an undesirably high concentration of the reducing gas into a chamber downstream from the first valve.
  • a relatively high amount of a reducing gas such as an amount that would make the separation of the particulate metallic transition metal therefrom challenging to perform or that would introduce an undesirably high concentration of the reducing gas into a chamber downstream from the first valve.
  • the transition metal comprises iron. In certain embodiments, the transition metal is iron.
  • the system comprises a filter downstream of the second valve and configured to capture residual particulate metallic transition metal and allow flow of the gas through the filter.
  • the system comprises a water trap downstream of the second valve. In such instances, it may be desirable for the second valve to be maintained in an open position during separation of a gas from a particulate metallic transition metal to allow for the water trap to be in fluidic communication with the chamber in which such separation occurs.
  • Water traps may be configured to capture residual particulate metallic transition metal and/or allow flow of the gas through the water trap and out through an outlet.
  • the system further comprises a filter downstream of the second valve and upstream of the water trap, wherein the filter is configured to capture residual particulate metallic transition metal and allow flow of the gas through the filter.
  • the system comprises a magnet (e.g., electromagnet, permanent magnet) configured to direct the movement of a particulate metallic transition metal to an outlet of the chamber within which the third valve is located, wherein the transition metal is iron.
  • the magnet e.g., electromagnet
  • the magnet is positioned outside of the chamber. In some embodiments, the magnet (e.g., electromagnet) is positioned below the base of the chamber.
  • the system comprises a plurality of magnets (e.g., electromagnets) configured to direct the movement of a particulate metallic transition metal to the outlet of the chamber within which the third valve is located, wherein at least one of the magnets (e.g., electromagnets) is positioned along the side of the chamber and/or at least one of the magnets (e.g., electromagnets) is positioned below the base of the chamber.
  • the plurality of magnets e.g., electromagnets
  • the plurality of magnets is positioned outside of the chamber.
  • some of the magnets are positioned circumferentially along the sides of the chamber.
  • the system comprises a sloped floor at the base of the chamber, configured to direct the movement of the particulate metallic transition metal to the third valve.
  • a chamber has a relatively advantageous ratio of length or width to height.
  • the height of the chamber is the spatial extent of the interior of the chamber along the direction of gravity.
  • the length and width of the chamber are the spatial extents of the interior of the principal axes of the chamber in the direction perpendicular to gravity.
  • the principal axis along which the length is measured is parallel to the direction along which particulate metallic transition metal flows through the chamber and/or has a smaller angle with respect to the direction along which particulate metallic transition metal flows through the chamber than the other principal axis perpendicular to gravity.
  • a chamber may have a ratio of length or width to height of greater than or equal to 1.2:1, greater than or equal to 1.5:1, greater than or equal to 1.75:1, greater than or equal to 2:1, greater than or equal to 3:1, greater than or equal to 5 : 1 , or greater than or equal to 7.5 : 1.
  • a chamber may have a ratio of length or width to height of less than or equal to 10:1, less than or equal to 7.5:1, less than or equal to 5:1, less than or equal to 3:1, less than or equal to 2:1, less than or equal to 1.75:1, or less than or equal to 1.5:1. Combinations of the above-referenced ranges are also possible (e.g., greater than or equal to 1.2:1 and less than or equal to 10:1). Other ranges are also possible.
  • FIGS. 1A-1G are cross-sectional schematic illustrations of systems configured to process particulate metallic transition metal (e.g., iron), according to certain embodiments.
  • FIG. 1A depicts an illustrative system 100 comprising: a chamber 132 comprising baffles 134 configured to direct particulate metallic transition metal to the base of chamber 132; a first valve 106 upstream of chamber 132 configured to allow flow of particulate metallic transition metal and a gas into chamber 132; a second valve 118 downstream of first valve 106, at or above the ceiling of chamber 132, and configured to allow flow of the gas out of chamber 132; and a third valve 114 downstream of first valve 106, at or below the base of chamber 132, and configured to allow flow of particulate metallic transition metal out of chamber 132.
  • Walls 116 of chamber 132 may comprise a thermally insulating material.
  • FIG. IB depicts illustrative system 100 comprising: a chamber 132 comprising baffles 134 configured to direct particulate metallic transition metal 108 to the base of chamber 132; a first valve 106 upstream of chamber 132 configured to allow flow 102 of particulate metallic transition metal and a gas into chamber 132; a second valve 118 downstream of first valve 106, at or above the ceiling of chamber 132, and configured to allow flow 128 of the gas out of chamber 132; and a third valve 114 downstream of first valve 106, at or below the base of chamber 132, and configured to allow flow 112 of particulate metallic transition metal 108 out of chamber 132.
  • Walls 116 of chamber 132 may comprise a thermally insulating material.
  • FIG. 1C depicts an illustrative system 200 comprising: a chamber 232; a magnet (e.g., electromagnet) 238 configured to direct the movement of particulate metallic iron to an outlet 246 of chamber 232; a first valve 206 upstream of chamber 232 configured to allow flow of particulate metallic iron and a gas into chamber 232; a second valve 218 downstream of first valve 206, at or above the ceiling of chamber 232, and configured to allow flow of the gas out of chamber 232; and a third valve 214 downstream of first valve 206, located within outlet 246 and located at or below the base of chamber 232, and configured to allow flow of particulate metallic iron out of chamber 232.
  • Walls 216 of chamber 232 may comprise a thermally insulating material.
  • FIG. ID depicts illustrative system 200 comprising: a chamber 232; a magnet (e.g., electromagnet) 238 configured to direct the movement of particulate metallic iron 208 to an outlet 246 of chamber 232; a first valve 206 upstream of chamber 232 configured to allow flow 202 of particulate metallic iron and a gas into chamber 232; a second valve 218 downstream of first valve 206, at or above the ceiling of chamber 232, and configured to allow flow 228 of the gas out of chamber 232; and a third valve 214 downstream of first valve 206, located within outlet 246 and located at or below the base of chamber 232, and configured to allow flow 212 of particulate metallic iron 208 out of chamber 232.
  • Walls 216 of chamber 232 may comprise a thermally insulating material.
  • FIG. IE depicts illustrative system 300 comprising: a chamber 332 comprising baffles 334 configured to direct particulate metallic transition metal 308 to the base of chamber 332; a first valve 306 upstream of chamber 332 configured to allow flow 302 of particulate metallic transition metal and a gas into chamber 332; a second valve 318 downstream of first valve 306, at or above the ceiling of chamber 332, and configured to allow flow 328 of the gas out of chamber 332; and a third valve 314 downstream of first valve 306, at or below the base of chamber 332, and configured to allow flow 312 of particulate metallic transition metal 308 out of chamber 332.
  • Chamber 332 further comprises a sloped floor 310 at the base of chamber 332, configured to direct the movement of particulate metallic transition metal 308 to third valve 314.
  • System 300 further comprises a water trap 322 downstream of second valve 318 and configured to capture residual particulate metallic transition metal 308 and allow flow 326 of the gas through water trap 322 and out through an outlet 324.
  • Walls 316 of chamber 332 may comprise a thermally insulating material.
  • FIG. IF depicts illustrative system 400 comprising: a chamber 432 comprising baffles 434 configured to direct particulate metallic transition metal 408 to the base of chamber 432; a first valve 406 upstream of chamber 432 configured to allow flow 402 of particulate metallic transition metal and a gas into chamber 432; a second valve 418 downstream of first valve 406, at or above the ceiling of chamber 432, and configured to allow flow 428 of the gas out of chamber 432; and a third valve 414 downstream of first valve 406, at or below the base of chamber 432, and configured to allow flow 412 of particulate metallic transition metal 408 out of chamber 432.
  • Chamber 432 further comprises a sloped floor 410 at the base of chamber 432, configured to direct the movement of particulate metallic transition metal 408 to third valve 414.
  • System 400 further comprises a water trap 422 downstream of second valve 418 and configured to capture residual particulate metallic transition metal 408 and allow flow 426 of the gas through water trap 422 and out through an outlet 424.
  • System 400 further comprises a filter 436 downstream of second valve 418 and upstream of water trap 422, wherein filter 436 is configured to capture residual particulate metallic transition metal 408 and allow flow 448 of the gas through filter 436.
  • System 400 further comprises a plurality of magnets (e.g., electromagnets) 438 configured to direct the movement of a particulate metallic transition metal 408 to an outlet 446 of chamber 432 within which third valve 414 is located, wherein some of the magnets (e.g., electromagnets) 438 are positioned along the side of chamber 432 (e.g., wherein some of the magnets (e.g., electromagnets) 438 are positioned circumferentially along the sides of chamber 432) and some of the magnets (e.g., electromagnets) 438 are positioned below the base of chamber 432.
  • Walls 416 of chamber 432 may comprise a thermally insulating material.
  • FIG. 1G depicts illustrative system 500 comprising: a chamber 532 comprising magnets (e.g., electromagnets) 538 positioned below the base of chamber 532 and configured to direct particulate metallic transition metal 508 to outlet 546 of chamber 532; a first valve 506 upstream of chamber 532 configured to allow flow 502 of particulate metallic transition metal and a gas into chamber 532; a second valve 518 downstream of first valve 506, at or above the ceiling of chamber 532, and configured to allow flow 528 of the gas out of chamber 532; and a third valve 514 downstream of first valve 506, at or below the base of chamber 532, and configured to allow flow 512 of particulate metallic transition metal 508 out of chamber 532.
  • magnets e.g., electromagnets
  • System 500 further comprises a water trap 522 downstream of second valve 518 and configured to capture residual particulate metallic transition metal 508 and allow flow 526 of the gas through water trap 522 and out through an outlet 524.
  • Walls 516 of chamber 532 may comprise a thermally insulating material.
  • FIG. 3 shows a further schematic example of a system suitable for separating a gas from a particulate metallic transition metal.
  • the system shown in FIG. 3 may be suitable for feeding a system in which the particulate metallic transition metal is formed into a bulk solid iron article, such as a briquette.
  • FIG. 4 shows a schematic example of a system suitable for forming a particulate metallic transition metal, separating it from a gas, and forming a bulk solid transition metal article therefrom.
  • Systems described herein may comprise some or all of the components shown in FIG. 4, and/or may comprise further components. It is also possible for multiple systems to be employed together, each of which has some or all of the components shown in FIG. 4.
  • FIG. 4 depicts system 700 comprising particulate metallic transition metal formation subsystem 750, gas separation subsystem 752, and briquetting subsystem 754. As shown in FIG.
  • conduits 756 and 758 which connect the particulate metallic transition metal formation subsystem 750 to gas separation subsystem 752, and gas separation subsystem 752 to briquetting subsystem 754, respectively.
  • conduits 756 and 758 which connect the particulate metallic transition metal formation subsystem 750 to gas separation subsystem 752, and gas separation subsystem 752 to briquetting subsystem 754, respectively.
  • conduits 756 and 758 may take the form of feed-screws, although other designs are also possible. It is also possible for such conduits to be absent.
  • material may be transported from one subsystem to another by an operator (e.g., via a container).
  • Particulate metallic transition metal formation subsystem 750 shown in FIG. 4 may be suitable for forming a particulate metallic transition metal, such as from a precursor particulate material.
  • it may comprise a furnace.
  • the furnace may have one or more ports through which one or more gases, such as a reducing gas for reducing a precursor particulate material and/or an inert gas, may be introduced.
  • An exemplary furnace 860 comprising two ports 862 and 864 is shown in FIG. 5.
  • Gas separation subsystem 752 shown in FIG. 4 may be suitable for separating a particulate metallic transition metal from a gas, such as a gas employed in transition metal formation subsystem 750. It may have a design shown for any of systems 100-500 of FIGS. 1A-1G and/or may include one or more features shown in such systems.
  • Briquetting subsystem 754 shown in FIG. 4 may be suitable for forming bulk solid transition metal articles, such as briquettes, from particulate metallic transition metals.
  • the particulate metallic transition metals may be supplied by gas separation subsystem 752.
  • Briquetting subsystems may comprise one or more heating and/or pressing components (e.g., one or more heated flat presses, one or more pairs of heated rollers) that may be employed to heat and/or press particulate metallic transition metals.
  • FIG. 6 shows briquetting subsystem 954 comprising flat press 966 and rollers 968.
  • the transition metal can comprise, in some embodiments, scandium (Sc), yttrium (Y), lanthanum (La), actinium (Ac), titanium (Ti), zirconium (Zr), hafnium (Hf), rutherfordium (Rf), vanadium (V), niobium (Nb), tantalum (Ta), dubnium (Db), chromium (Cr), molybdenum (Mo), tungsten (W), seaborgium (Sg), manganese (Mn), technetium (Tc), rhenium (Re), bohrium (Bh), iron (Fe), ruthenium (Ru), osmium (Os), hassium (Hs), cobalt (Co), rhodium (Rh), iridium (Ir), meitnerium (Mt), nickel (Ni), palladium (Pd), platinum (Pt), darmstadtium (Ds), copper (Cu), silver (Ag), gold (Au
  • particles of a particulate metallic transition metal may further comprise one or more materials in addition to the particulate transition metal.
  • the particles of a particulate transition metal may further comprise a binder, such as bentonite clay.
  • This Example demonstrates the formation of bulk solid iron articles from particulate metallic iron.
  • particulate metallic iron was prepared. Chemically treated red mud having for which 50 vol% of the particles had a maximum cross-sectional dimension of less than 20 microns was placed in a sealed furnace and then heated in the presence of excess hydrogen gas for 4 hours. This reduced the red mud particles to form the particulate metallic iron. Then, the particulate metallic iron was transferred from the furnace to a glove box. This was accomplished by first employing a feed screw to cause the particulate metallic iron to fall into a chamber under a slow argon gas bleed. After the particulate metallic iron transfer, the chamber was sealed and then placed in the glove box.
  • particulate metallic iron underwent a briquetting process to form bulk solid iron articles.
  • the particulate metallic iron was removed from the chamber and loosely pressed into blocks inside the glove box. After removal from the glove box, these blocks exhibited limited reactivity with air, with oxidation mostly limited to their exterior surfaces.
  • a reference to “A and/or B,” when used in conjunction with open-ended language such as “comprising” can refer, in one embodiment, to A without B (optionally including elements other than B); in another embodiment, to B without A (optionally including elements other than A); in yet another embodiment, to both A and B (optionally including other elements); etc.
  • the phrase “at least one,” in reference to a list of one or more elements, should be understood to mean at least one element selected from any one or more of the elements in the list of elements, but not necessarily including at least one of each and every element specifically listed within the list of elements and not excluding any combinations of elements in the list of elements.
  • This definition also allows that elements may optionally be present other than the elements specifically identified within the list of elements to which the phrase “at least one” refers, whether related or unrelated to those elements specifically identified.
  • “at least one of A and B” can refer, in one embodiment, to at least one, optionally including more than one, A, with no B present (and optionally including elements other than B); in another embodiment, to at least one, optionally including more than one, B, with no A present (and optionally including elements other than A); in yet another embodiment, to at least one, optionally including more than one, A, and at least one, optionally including more than one, B (and optionally including other elements); etc.
  • embodiments may be embodied as a method, of which various examples have been described.
  • the acts performed as part of the methods may be ordered in any suitable way. Accordingly, embodiments may be constructed in which acts are performed in an order different than illustrated, which may include different (e.g., more or less) acts than those that are described, and/or that may involve performing some acts simultaneously, even though the acts are shown as being performed sequentially in the embodiments specifically described above.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

L'invention concerne de manière générale des systèmes et des procédés de traitement d'un métal de transition métallique particulaire (par exemple de fer). Certains procédés comprennent le chauffage et/ou la compression de fer métallique particulaire pour former une briquette ayant une dimension de section transversale maximale supérieure ou égale à 20 millimètres, au moins 80 pour cent en volume des particules du fer métallique particulaire ayant une dimension de section transversale maximale inférieure ou égale à 100 micromètres. Certains systèmes comprennent une chambre comprenant des déflecteurs ; une première soupape conçue pour permettre l'écoulement de métal de transition métallique particulaire et d'un gaz dans la chambre ; une deuxième soupape conçue pour permettre l'écoulement du gaz hors de la chambre ; et une troisième soupape conçue pour permettre l'écoulement de métal de transition métallique particulaire hors de la chambre.
PCT/US2023/032324 2022-09-09 2023-09-08 Systèmes et procédés de traitement d'un métal de transition métallique particulaire Ceased WO2024054653A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW112143523A TW202510986A (zh) 2022-09-09 2023-11-10 用於處理顆粒狀金屬性過渡金屬之系統及方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202263405082P 2022-09-09 2022-09-09
US63/405,082 2022-09-09

Publications (2)

Publication Number Publication Date
WO2024054653A2 true WO2024054653A2 (fr) 2024-03-14
WO2024054653A3 WO2024054653A3 (fr) 2024-04-25

Family

ID=90191810

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2023/032324 Ceased WO2024054653A2 (fr) 2022-09-09 2023-09-08 Systèmes et procédés de traitement d'un métal de transition métallique particulaire

Country Status (2)

Country Link
TW (1) TW202510986A (fr)
WO (1) WO2024054653A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025210979A1 (fr) * 2024-04-02 2025-10-09 日本製鉄株式会社 Procédé de production de briquettes de fer réduit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1275570A (en) * 1968-10-11 1972-05-24 Exxon Research Engineering Co Improved feed for iron and steel making
JP5059379B2 (ja) * 2006-11-16 2012-10-24 株式会社神戸製鋼所 高炉装入原料用ホットブリケットアイアンおよびその製造方法
JP4317580B2 (ja) * 2007-09-14 2009-08-19 新日本製鐵株式会社 還元鉄ペレットの製造方法及び銑鉄の製造方法
GB2532689B (en) * 2013-08-19 2020-04-15 Antonio M Gomez Rodolfo A process for producing and reducing an iron ore briquette

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025210979A1 (fr) * 2024-04-02 2025-10-09 日本製鉄株式会社 Procédé de production de briquettes de fer réduit
JP7755217B1 (ja) * 2024-04-02 2025-10-16 日本製鉄株式会社 還元鉄ブリケットの製造方法

Also Published As

Publication number Publication date
TW202510986A (zh) 2025-03-16
WO2024054653A3 (fr) 2024-04-25

Similar Documents

Publication Publication Date Title
WO2024054653A2 (fr) Systèmes et procédés de traitement d'un métal de transition métallique particulaire
CA2745813C (fr) Systeme et procede pour le traitement thermique des gisements de minerais
RU2011152724A (ru) Способ получения наноразмерного порошка металла
CN118745493A (zh) 一种基于多段控制的球团矿氢冷却还原方法、装置及应用
CN107893143A (zh) 一种转炉煤气干法除尘余热回收系统和工艺
EP4314353A1 (fr) Processus et procédés de production de fer et d'acier
CN209144212U (zh) 充氮无氧热处理装置
CN113023676A (zh) 一种氢气纯化装置及其纯化方法
WO2022029887A1 (fr) Système et procédé de fabrication de fer
JP5198409B2 (ja) 排ガスダストの処理方法
US20090098004A1 (en) Method for Hot Isostatic Pressing
RU2740743C2 (ru) Способ и устройство для прямого восстановления с сухим обеспыливанием отходящего газа
CN110538647A (zh) 一种活性炭脱硫脱硝再生系统
Ma et al. Smelting reduction of ilmenite by carbon in molten pig iron
CN208419610U (zh) 一种稀土加热冶炼炉
CN114602441B (zh) 一种活性炭快速降温分离装置及方法
JP7548074B2 (ja) ニッケル酸化鉱石の製錬方法
CN104745914B (zh) 一种纳米晶带材的制作方法
CN203197247U (zh) 脱蜡烧结设备的气管结构
TWI430858B (zh) Metal particle manufacturing system and method
CN201890901U (zh) 核级u型管全氢热处理炉
AU2023390914A1 (en) Metal ore reduction reactor with self-generating reductant
CN117244683A (zh) 一种低温氯化炉FeCl3收集装置及收集方法
CN118421849A (zh) 一种氢气直接还原铁系统及方法
CN115235819A (zh) 一种高温气固两相流磁性颗粒的取样保护装置及方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23863844

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 23863844

Country of ref document: EP

Kind code of ref document: A2