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WO/2022/264667A1 |
Provided is a method for producing an agglomerated ore by which reduced iron can be efficiently produced by hydrogen reduction without requiring preheating of raw materials and raising the temperature of reducing gas. With the method f...
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WO/2022/264666A1 |
Provided is a shaft furnace operation method by which reduced iron can be produced using a shaft furnace while suppressing CO2 emissions and without preheating raw materials. This shaft furnace operation method is for obtaining reduced...
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WO/2022/262812A1 |
Disclosed is a pre-reduced pellet preparation device and method, wherein the pre-reduced pellet preparation device comprises a straight grate system and a hydrogen-based shaft furnace reduction system; by organically combining the roasti...
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WO/2022/260580A1 |
The present invention concerns a metal agglomerate production configuration (1) comprising an induration apparatus (3) configured to provide a metal oxide material manufacturing thermal process (MTE) comprising indurating a metal ore mat...
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WO/2022/259563A1 |
The pig iron production method according to an embodiment of the present invention is for producing pig iron using a blast furnace having a tuyere, and comprises: a step for alternately layering, in the blast furnace, first layers contai...
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WO/2022/258676A1 |
A device (1) for performing electrolysis of water is disclosed. The device comprising: a semiconductor structure (10) comprising a surface (11) and an electron guiding layer (12) below said surface (11), the electron guiding layer (12) o...
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WO/2022/253938A1 |
A method for operating a blast furnace is presented, said method comprising the steps of collecting a stream of blast furnace gas from the blast furnace; feeding said stream of blast furnace gas and a hydrocarbon containing gas to a refo...
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WO/2022/254234A1 |
A method for manufacturing direct reduced iron wherein iron ore is reduced in a direct reduction furnace by a reducing gas, the reducing gas exiting the furnace through the top as a top reduction gas. The top reduction gas is captured an...
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WO/2022/254278A1 |
A method for manufacturing direct reduced iron wherein iron ore is reduced in a direct reduction furnace by a reducing gas, the reducing gas exiting the furnace through the top as a top reduction gas. The top reduction gas is captured an...
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WO/2022/254235A1 |
A method for manufacturing direct reduced iron wherein iron ore is reduced in a direct reduction furnace by a reducing gas, the reducing gas exiting the furnace through the top as a top reduction gas. The top reduction gas is captured an...
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WO/2022/253683A1 |
The invention relates to a method for the direct reduction of iron ore into sponge iron. The iron ore passes through a reduction zone (11) in order to reduce the iron ore into sponge iron, and the reduction zone (11) is divided into a pr...
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WO/2022/251059A1 |
A system and method of direct reduction of iron (DRI) is disclosed, having a reduction unit configured to reduce iron oxides to metallic iron; a process gas heater coupled to the reduction unit, the process gas heater configured to suppl...
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WO/2022/247356A1 |
Provided in the present application is a method for smelting a nickel-containing metal, which comprises the following steps: step one, mixing a low grade nickel material with lime and performing oxidative roasting, and obtaining a nickel...
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WO/2022/247077A1 |
The present invention belongs to the technical field of blast furnace distributor air cooling, and relates to an air-cooled blast furnace distributor, which comprises a distributor body and a rotary cylinder rotatably connected to the di...
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WO/2022/248915A1 |
A method for manufacturing direct reduced iron wherein oxidized iron is reduced in a direct reduction furnace by a reducing gas, said direct reduction furnace comprising a reduction zone, a transition zone and a cooling zone, a carbon-be...
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WO/2022/248914A1 |
A method of operating a network of plants comprising a blast furnace, a direct reduction furnace, a CO2 conversion unit wherein blast furnace top gas is subjected to a CO2 conversion step to produce a liquid carbon product which is injec...
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WO/2022/248987A1 |
A method for manufacturing direct reduced iron wherein oxidized iron is reduced in a direct reduction furnace by a reducing gas, said direct reduction furnace comprising a reduction zone, a transition zone and a cooling zone, a carbon-be...
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WO/2022/243724A1 |
A method for manufacturing Direct Reduced Iron wherein iron ore is reduced in a DRI shaft by a reducing gas comprising hydrogen obtained by extraction from coke oven gas through a hydrogen separation unit, the remaining part of such coke...
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WO/2022/243856A1 |
Apparatus (1) for cooling a material (M), in particular for cooling white or black slag, comprising: - at least one reactor (2), substantially tubular, which is rotating and which comprises a rotating tubular structure (3) defining insid...
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WO/2022/243129A1 |
The invention relates to a method for producing steel in an integrated metallurgical plant (1) comprising at least one direct reduction reactor (2) for directly reducing iron ore into sponge iron, at least one electric furnace (3) for me...
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WO/2022/243726A1 |
A method for manufacturing direct reduced iron wherein oxidized iron is reduced in a direct reduction furnace by a reducing gas, said oxidized iron being first mixed with biochar to form a solid compound and said solid compound is charge...
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WO/2022/243723A1 |
The invention is related to a method for operating a network of plants comprising a blast furnace, a steelmaking furnace producing steel and a steelmaking gas, a direct reduction furnace wherein oxidized iron is charged to be reduced by ...
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WO/2022/243725A1 |
A method for manufacturing Direct Reduced Iron wherein iron ore is reduced in a DRI shaft by a reducing gas comprising hydrogen obtained by thermal cracking of methane inside a plasma torch, the reducing gas further comprising top gas co...
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WO/2022/237607A1 |
Disclosed are a method for enriching niobium-titanium in an iron-containing niobium-titanium ore and a use of a nickel-containing substance. The method of the present invention comprises the following steps: reacting raw materials compri...
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WO/2022/238822A1 |
The present invention relates to a steel making plant (1) comprising at least one electric arc furnace (10) and a fume collection and treatment system (100) comprising: a first primary suction line (110) fluidically connected to the elec...
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WO/2022/238132A1 |
The invention relates to a method for the direct reduction of iron ore to sponge iron, wherein: the iron ore passes through a reduction zone (11) for reducing the iron ore to sponge iron; in the reduction zone (11), a reducing gas flows ...
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WO/2022/233414A1 |
The invention relates to an oxygen lance guiding assembly comprising an oxygen lance feeding device (20) that is arranged on a tap hole drilling unit which includes, on a receptacle (13) for arranging a drilling mechanism (14), a drillin...
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WO/2022/233769A1 |
A BF iron-ore reduction process for the production of iron and/or iron-carbon compounds with low environmental impact is described, in which a synthesis gas produced from a hydrocarbon stream with a short contact time - catalytic partial...
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WO/2022/234762A1 |
Provided is a technique for melting a cold iron source using a heat source having reduced CO2 emissions. Provided is an electric furnace in which a burner is arranged so as to face the furnace contents, the burner being equipped with a p...
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WO/2022/227179A1 |
The present invention relates to the field of comprehensive utilization of copper slag, and relates to a molten copper slag depletion and side-top combined blowing reduction integrated method. Specific steps are: (1) molten copper slag i...
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WO/2022/227184A1 |
A comprehensive utilization method for bottom-top composite blowing smelting reduction of high-iron red mud, the method mainly comprising the following steps: mixing high-iron red mud with a reducing agent, a slag former and fluorite; ad...
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WO/2022/227185A1 |
A comprehensive utilization method for side-top composite injection smelting reduction of high-iron red mud. The comprehensive utilization method mainly comprises the following steps: mixing high-iron red mud with a reducing agent, a sla...
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WO/2022/227994A1 |
The present invention provides an iron and steel smelting method. The method comprises the following steps: performing a catalytic dehydrogenation reaction on propane, wherein electricity is used to provide energy for the catalytic dehyd...
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WO/2022/227801A1 |
An iron-containing material composite injection method and system. The method comprises the following steps: (i) crushing and grinding an iron-containing material, and then performing dehydration drying treatment and primary preheating p...
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WO/2022/229414A1 |
A cooling system for a metallurgical furnace comprises: a plurality of cooling arrangements (40) comprising each a set of cooling elements (38) arranged to extract heat from the furnace, the cooling elements (34) having each at least one...
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WO/2022/229084A1 |
A method for producing slag (42) having a desired quality is disclosed.
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WO/2022/223606A1 |
The invention discloses a method of operating an electric arc furnace, the method comprising capturing, from at least one facility (12) of a steel mill (100), a heated metallurgical gas comprising water and carbon monoxide; conducting, b...
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WO/2022/224013A1 |
The invention relates to a process for the production of steel powders comprising the steps of: providing molten iron from a blast furnace, refining the molten iron in a converter to form molten steel, refining the molten steel in a vacu...
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WO/2022/222709A1 |
The present invention provides a method for producing sponge iron. The method comprises the following steps: performing a steam cracking reaction on a cracking raw feedstock containing low-carbon alkane, wherein electricity is used to pr...
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WO/2022/217894A1 |
A method for calculating blast-furnace tuyere air volume and air speed distribution and a computer device. The method comprises: according to obtained air volume parameters, the sizes of adjusted tuyeres and structural data of tuyere bra...
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WO/2022/213578A1 |
A blast furnace top pressure-equalizing gas purification and recovery device and process. The device comprises an intermediate buffer tank (4) and a dust remover (6), and further comprises a pressure-equalizing gas recovery pipe (3), a p...
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WO/2022/214846A1 |
The invention relates to a process for the production of steel powders comprising the steps of: providing molten iron from a blast furnace, refining the molten iron in a converter to form molten steel comprising up to 600 ppm C, up to 12...
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WO/2022/214862A1 |
A pelletizing pilot plant to perform a pelletizing process based on Allis Chalmers method comprises at least one combustion chamber, at least one burn pot, a first wind-box, an exhaust flange, a rotary kiln, a heat recovery apparatus, at...
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WO/2022/209021A1 |
A charged material settlement behavior measuring device (9) according to the present invention measures the settlement behavior of the surface (24) of a charged material charged into a furnace of a blast furnace (10), and comprises: a no...
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WO/2022/208902A1 |
A pig iron production method according to one embodiment of the present invention is for producing pig iron using a blast furnace with a tuyere, the method comprising: a step in which first layers that include an ore raw material and sec...
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WO/2022/209015A1 |
Proposed is an operating method for a reducing furnace that can reduce iron oxide included in a raw material more efficiently than conventional methods. This operating method for a reducing furnace, comprising loading a raw material that...
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WO/2022/209022A1 |
This rotating chute inner surface wear testing apparatus (9) is for testing the wear of a surface of a liner (32) attached to an inner surface of a chute (21) provided in a charging device (20) of a blast furnace (10). The rotating chute...
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WO/2022/208260A1 |
A method for the cooling and heat recovery from materials at very high temperature comprises at least the following steps of: - conveying material at very high temperature into a mixing system (20); - transporting the material exiting th...
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WO/2022/209013A1 |
Provided is a reduced ion production method capable of efficiently producing reduced iron without preheating raw materials in advance. This reduced ion production method is for obtaining reduced iron by charging agglomerates as raw mater...
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WO/2022/209014A1 |
Provided are raw material particles for the production of an agglomerate, able to produce an agglomerate having a higher reducing property. The raw material particles 1 (2) of the present invention, for producing an agglomerate used as r...
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