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WO/2023/162344A1 |
Provided is a method for operating a blast furnace, whereby it becomes possible to further reduce the amount of carbon dioxide discharged from the blast furnace under stable operation of the blast furnace. A regenerated organic substance...
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WO/2023/162389A1 |
The present invention significantly reduces CO2 emission and enables stable operation regardless of fluctuations in various conditions, in a process for reducing fine iron ore by means of a fluidized-bed reduction furnace and a smelting ...
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WO/2023/158364A1 |
The present invention relates to a method for the production of sponge iron from iron ore, comprising the steps of: charging iron ore into a direct reduction shaft (1); introducing a hydrogen-rich process gas into the direct reduction sh...
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WO/2023/156904A1 |
The present disclosure relates, according to some embodiments to a method for steel production, the method comprising forming a hydrogen and a carbon from a natural gas using thermal plasma electrolysis; reducing iron ore fines with the ...
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WO/2023/151242A1 |
Disclosed in the present invention are a metal smelting device and a steelmaking production line. Since a first channel for circulation of a liquid metal is provided between a second chamber and a first chamber in the present invention, ...
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WO/2023/153407A1 |
Since blast furnace gas discharged from a blast furnace contains a large amount of CO gas that did not contribute to ore reduction, blast furnace gas containing unused CO gas is again blown into the blast furnace through blast furnace tu...
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WO/2023/152621A1 |
The method according to the present invention comprises the steps of : - combining the reagents of a carbothermal reaction to form a mixture to be subjected to heat treatment, said reagents comprising the component (MO) in which the elem...
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WO/2023/142213A1 |
A blast furnace edge airflow stability control method, comprising: constructing a database; and selecting blast furnace operation parameters satisfying a first preset condition from the database to generate a blast furnace operation para...
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WO/2023/142734A1 |
Disclosed in the present invention is an iron-making method of a hydrogen-enriched carbon cycle blast furnace, comprising: by taking oxygen enrichment of a conventional blast furnace as a reference period, enabling the oxygen content of ...
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WO/2023/143870A1 |
The invention relates to a method and to a device for extracting metallic iron (19), in which a methane-rich charge (1) is reformed by supplying carbon dioxide (2) in order to obtain hydrogen and carbon monoxide to form a reduction gas (...
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WO/2023/142481A1 |
The present invention provides a direct reduction process and direct reduction apparatus for iron-containing composite pellets. A method of pre-reduction in a rotary kiln-deep reduction in a melting separation furnace is adopted, a coal-...
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WO/2023/144324A1 |
The present invention relates to a flux composition for producing a binder for taphole clay, comprising at least, by weight relative to the total weight thereof: (i) from 20 to 70% of a hydrocarbon binder; (ii) from 22 to 70% of a compou...
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WO/2023/138057A1 |
The present invention relates to the technical field of metal smelting. Disclosed are a cyclone- and molten iron wall-based smelting apparatus and method. The smelting apparatus comprises an outer cylinder and an inner cylinder; a gasifi...
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WO/2023/139222A1 |
The invention relates to an apparatus (6) for dividing a briquette string (5) which has a plurality of contiguous briquette rows (5a) that are arranged one behind the other (in a longitudinal direction (L)) and each comprise, adjacent to...
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WO/2023/138817A1 |
The invention relates to an apparatus (6) for dividing a briquette string (5) which has a plurality of contiguous briquette rows (5a) that are arranged one behind the other (in a longitudinal direction (L)) and each comprise, adjacent to...
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WO/2023/134368A1 |
An ultrahigh oxygen-enriched low-carbon smelting method, comprising the steps of charging and blast furnace smelting, wherein the oxygen enrichment rate of the blast furnace is 40-50%, and the oxygen enrichment rate of the hot blast furn...
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WO/2023/135530A1 |
A process for separating iron oxide from iron oxide-containing and phosphate-containing slag melts comprises the steps of: providing an iron oxide-containing and phosphate-containing slag melt in a crucible, cooling the hydroxide-contain...
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WO/2023/134370A1 |
A gas injection control system for a blast furnace, and a control method. An embodiment comprises a coke oven gas pipeline, a decarbonized gas pipeline, a nitrogen gas protection pipeline, and a main gas pipeline; the coke oven gas pipel...
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WO/2023/134369A1 |
Disclosed in the present invention is an oxygen blast-furnace blow in method. The method comprises: filling a furnace with a furnace charge material after the furnace is dried, injecting and heating nitrogen at a tuyere for preheating, t...
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WO/2023/130752A1 |
Disclosed are an iron-containing pellet direct reduction process and system based on rotary kiln-smelting reduction furnace hot gas external circulation. In order to realize rapid reduction at low temperature by a coal-based rotary kiln,...
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WO/2023/130750A1 |
The present invention provides a method and system for directly reducing an iron oxide. By means of a method consisting of pre-reduction with a pre-reduction device and deep reduction with a deep reduction device, the reduction reaction ...
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WO/2023/130823A1 |
Disclosed is a composite material oxygen and coal spray gun, pertaining to the fields of direct reduction and smelting reduction ironmaking. The spray gun comprises an oxygen spraying gun, a coal spraying gun, at least one water cooling ...
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WO/2023/130234A1 |
A blast furnace state monitoring method and apparatus based on multi-modality fusion. The concept of a sub-modality is introduced into a blast furnace state monitoring process, and a method of applying sub-modality pre-acquisition and pe...
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WO/2023/131858A1 |
Disclosed herein is a method and system for determining and controlling thermal level of a blast furnace. In an embodiment, the method comprises acquiring real-time values of a plurality of operational parameters associated with the blas...
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WO/2023/126031A2 |
Disclosed is a method for preparing steel sheet strips via electro-hydrogen cooperation under microwave radiation, belonging to the technical field of ferrous metallurgy. The method, which has near-zero carbon emissions, comprises: prepa...
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WO/2023/121465A1 |
The present invention relates to a method for producing iron fuel from metal oxide containing charge materials via reducing the metal oxide containing charge materials. An object of the present invention is to produce iron in a specific ...
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WO/2023/111654A1 |
Method to produce hot metal in at least one blast furnace (1) comprising at least two levels of gas injection (3A, 3B) and emitting a blast furnace top gas (10) when working, said method comprising at least the steps of charging an iron-...
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WO/2023/111639A1 |
An apparatus (1) for the production of iron metal through reduction of iron ore by an electrolysis reaction, the apparatus comprising a electrolyte circulation device (30) including a pumping device (22) located at one extremity of the c...
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WO/2023/111652A1 |
A steel manufacturing method comprising the steps of producing direct reduced iron in a direct reduction plant (1) using a syngas (70) resulting from the gasification of solid waste fuels, producing hot metal (22) and a blast furnace top...
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WO/2023/111779A1 |
A Steel manufacturing method comprising the step of producing direct reduced iron (12) and a reduction top gas (13) in a direct reduction plant (1) using a reducing gas (11), the reduction top (13) being at least partly (13A) recycled as...
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WO/2023/111927A1 |
The present invention relates to a method for producing a ferrous alloy comprising the following steps : a. melting a ferrous metal charge in a metallurgical furnace to obtain a mass of molten metal; b. feeding into said furnace, before,...
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WO/2023/111653A1 |
A Steel manufacturing method comprising the step of producing direct reduced iron (12) and a reduction top gas (13) in a direct reduction plant (1) using a reducing gas (11), the reduction top (13) being at least partly (13A) recycled as...
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WO/2023/112505A1 |
In the present invention, molten iron is obtained at a low electric power consumption rate by preheating a cold iron source efficiently and reliably by ascertaining preheating conditions of the cold iron source. The method is for produci...
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WO/2023/104881A1 |
A process and reactor for the reduction of metal ores to bare metal are disclosed. More specifically, it describes a process for the reduction of iron oxides into DRI metal (e.g. HBI). The process is characterized by a gravitational plug...
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WO/2023/104719A1 |
The present invention relates to a method for handling particulate metal and in particular for transporting energy over great distances, comprising the following steps: 1a) Providing particulate metal to a pretreatment unit (1) at a firs...
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WO/2023/104309A1 |
The invention relates to a manipulator arm (12) for connection to a manipulator running gear (11) which is arranged, in particular, in the periphery of a metallurgical furnace, wherein the manipulator arm (12) has a proximal end (35) for...
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WO/2023/107960A1 |
Systems for producing iron may include (a) a reactor configured to receive iron ore and a reducing gas, and from these produce iron; and (b) a carbon dioxide reduction electrolyzer configured to produce at least carbon monoxide and/or a ...
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WO/2023/097960A1 |
The present invention provides a treatment method for high-phosphorus iron ore, comprising: mixing high-phosphorus iron ore, a reducing agent, a dephosphorization agent, a binder, and water to obtain a mixture; performing ball press on t...
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WO/2023/097942A1 |
An injection regulation and control device and method for blast furnace low-carbon smelting. The injection regulation and control device comprises blast furnace tuyeres (2) used for introducing rich oxygen or pure oxygen to form tuyere r...
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WO/2023/100936A1 |
A facility for producing reduced iron according to the present invention comprises: a granulation device that produces a granulated powder, in a fluidized bed formed of fluidized carrier particles that will not pyrolyze during fluidizati...
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WO/2023/102580A1 |
The invention provides a method of reducing ferrous metal fines derived from waste or from ferrous ore, including feeding a fine ferrous material with a particle size distribution of between 10 microns to less than 6 mm and a reductant i...
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WO/2023/101585A1 |
A system for direct reduction of iron ore to sponge iron, comprising a direct reduction shaft (1) comprising an outer wall (2) configured to withstand a pressure generated in the reduction shaft (1) during operation thereof, and a heat r...
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WO/2023/100707A1 |
The present invention proposes a method for producing a metal iron having a low phosphorus concentration from a raw material containing iron oxide and phosphorus as components. This production method for a metal iron comprises a high-tem...
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WO/2023/094545A1 |
A system for measuring a thickness of a cooling plate, said system comprises: a probe holder unit (10) designed to fit inside a coolant channel (18) of the cooling plate (12), the probe holder unit comprising a housing (30) extending alo...
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WO/2023/094857A1 |
The invention relates mainly to an apparatus (1 ) for the production of iron metal through reduction of iron ore by an electrolysis reaction, said electrolysis reaction generating a gas, the apparatus comprising a casing (4) including a ...
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WO/2023/095110A1 |
The present invention relates to a process for the preparation of a cerium oxide catalyst doped with a metal having a reduced catalytic reduction temperature and a large reactive catalytic surface, making it particularly useful as a cata...
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WO/2023/094292A1 |
Double shaft furnace arrangement (10) for the direct reduction of metallic oxides, the double shaft furnace arrangement (10) comprising: at least a first shaft (11) and a second shaft (21) extending along a vertical direction (Z); wherei...
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WO/2023/084128A1 |
A method for determining the content at least of metallic iron (Femet) in sponge iron produced by direct reduction from iron ore, or in a sample (4) thereof, is presented. For this purpose, a mathematical model (1) is provided, the model...
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WO/2023/086002A1 |
The present disclosure relates to an apparatus for producing hot briquetted iron. The apparatus (1) comprises: a briquetting press (10) and a force feeder arrangement (30). The apparatus further comprises: a powder injection arrangement ...
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WO/2023/079017A1 |
The invention relates to a method for reducing metal oxide (M1) by means of a reducing gas or gas mixture, having the following steps: - combining (V1) the metal oxide (M1) to be reduced and the gas or gas mixture used to reduce the meta...
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