WO2022264668A1 - Procédé pour la carbonatation d'une substance contenant du cao et procédé pour la production d'une substance carbonatée - Google Patents
Procédé pour la carbonatation d'une substance contenant du cao et procédé pour la production d'une substance carbonatée Download PDFInfo
- Publication number
- WO2022264668A1 WO2022264668A1 PCT/JP2022/017523 JP2022017523W WO2022264668A1 WO 2022264668 A1 WO2022264668 A1 WO 2022264668A1 JP 2022017523 W JP2022017523 W JP 2022017523W WO 2022264668 A1 WO2022264668 A1 WO 2022264668A1
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- WIPO (PCT)
- Prior art keywords
- cao
- carbonating
- substance
- containing substance
- gas
- Prior art date
Links
- 239000000126 substance Substances 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 115
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 44
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 42
- 239000002893 slag Substances 0.000 claims description 41
- 239000000463 material Substances 0.000 claims description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000004567 concrete Substances 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 238000009628 steelmaking Methods 0.000 claims description 11
- 238000007664 blowing Methods 0.000 claims description 7
- 239000002699 waste material Substances 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 41
- 229910052500 inorganic mineral Inorganic materials 0.000 description 14
- 239000011707 mineral Substances 0.000 description 14
- 235000010755 mineral Nutrition 0.000 description 14
- 239000002245 particle Substances 0.000 description 8
- 239000012298 atmosphere Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000012299 nitrogen atmosphere Substances 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 235000010216 calcium carbonate Nutrition 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004455 differential thermal analysis Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/62—Carbon oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/70—Chemical treatment, e.g. pH adjustment or oxidation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/16—Waste materials; Refuse from building or ceramic industry
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/02—Dephosphorising or desulfurising
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/45—Concrete
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/55—Slag
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Definitions
- the present invention relates to a method for carbonating a CaO-containing substance and a method for producing a carbonated substance, including a step of blowing a gas containing carbon dioxide against a solidified CaO-containing substance to carbonate the CaO-containing substance.
- Patent Document 1 describes a method for efficiently carbonating steelmaking slag while suppressing granulation of slag particles by supplying a gas containing carbon dioxide to dry-treated steelmaking slag.
- the present invention provides a method for carbonating a CaO-containing substance that can realize a high carbonic acid fixation rate without adjusting the water content of the CaO-containing substance, and a carbonation method using the carbonation method. It is an object of the present invention to provide a method for producing carbonated substances.
- a high carbonic acid fixation rate can be achieved by blowing a gas containing carbon dioxide to the CaO-containing material for 10 minutes or more while the temperature of the CaO-containing material is set to 400 ° C. or higher and 1200 ° C. or lower. It was found that it can be realized.
- a high carbonic acid fixation rate can be achieved without adjusting the water content of the CaO-containing substance. Since fixing carbon dioxide in the atmosphere to a CaO-containing substance at a high carbonic acid fixation rate in this way greatly contributes to the reduction of carbon dioxide emissions, the present invention is an industrially extremely effective process.
- FIG. 4 is a graph showing the relationship between slag temperature and carbonic acid fixation rate in Experimental Example 1.
- a method for carbonating a CaO-containing material according to one embodiment of the present invention is a step of blowing a gas containing carbon dioxide onto the CaO-containing material for 10 minutes or more while the temperature of the CaO-containing material is 400° C. or higher and 1200° C. or lower. including. Details of the method for carbonating a CaO-containing substance according to the present embodiment will be described below.
- the material to be treated in this embodiment is a solidified CaO-containing material.
- a gas containing carbon dioxide is supplied to the solidified CaO-containing substance, and the carbon dioxide is fixed to the CaO-containing substance while carbonating the CaO-containing substance by the following reaction.
- the CaO-containing substance which is the substance to be treated, preferably has a CaO/SiO 2 mass ratio of 1.5 or more and a component composition containing 30 mass% or more of CaO.
- a CaO-containing material having such a composition contains free-CaO and ⁇ -2CaOSiO 2 (hereinafter referred to as “ ⁇ -C 2 S”) as mineral phases.
- Free-CaO is preferably carbonated with a gas containing carbon dioxide. Although the details will be described later, ⁇ -C 2 S exhibits a high carbonic acid fixation rate with a gas containing water vapor and carbon dioxide.
- Steel slag generated as a by-product in the steel manufacturing process is exemplified as the above CaO-containing substance.
- Iron and steel slag is roughly classified into blast furnace slag and steelmaking slag.
- Iron and steel slag contains 30 to 50% by mass of CaO, depending on the type, so it can be expected to fix carbon dioxide by blowing carbon dioxide against the mineral phase containing this CaO.
- CaO but also MgO, which is an oxide of an alkali metal, can be expected to have the same effect.
- the steel slag used as the CaO-containing substance is preferably steelmaking slag.
- Steelmaking slag contains a large amount of free-CaO among iron and steel slags, so a higher carbonic acid fixation rate can be achieved.
- Steelmaking slag is also preferable in that it also contains ⁇ -C 2 S.
- Waste concrete is construction waste material, such as concrete, which is a specific construction material that is obligated to be sorted, dismantled and recycled according to the Construction Recycling Law.
- the used concrete is crushed and recycled material for concrete conforming to Annex A of JIS A 5023: 2018 recycled aggregate concrete L, JIS A 5023: 2018 recycled aggregate concrete M attached Recycled aggregate M for concrete conforming to Book A, and recycled crusher run and recycled sand described in pavement recycling handbook (Japan Road Association, 2010) are included.
- These waste concretes contain cement such as Portland cement, and contain about 60% by mass of CaO, so that a higher carbonic acid fixation rate can be achieved.
- the particle size of the CaO-containing material is not particularly limited, it can be, for example, a particle size suitable for steel slag for roads.
- the particle size distribution of steel slag for roads is specified in JIS A 5015-2018, and CS-40 is used in particular.
- CS-40 has a particle size range of 40 to 0 mm, a nominal opening of a metal mesh sieve specified in JIS Z 8801-1, a 53 mm sieve passing rate of 100% by mass, and a 37.5 mm sieve passing rate of 95 to 100% by mass, a 19 mm sieve passage rate of 50 to 80% by mass, a 4.75 mm sieve passage rate of 15 to 40% by mass, and a 2.36 mm sieve passage rate of 5 to 25% by mass. .
- the temperature of the CaO-containing material it is important to keep the temperature of the CaO-containing material within the range of 400° C. or higher and 1200° C. or lower during the carbonation treatment. If the temperature is less than 400° C., the reaction rate is slow and a high carbonic acid fixation rate cannot be achieved. Therefore, the temperature is set to 400° C. or higher. From the viewpoint of realizing a higher carbonic acid fixation rate, the temperature is preferably 600° C. or higher, more preferably 800° C. or higher. On the other hand, when the temperature exceeds 1200 ° C., the Fe and CO 2 contained in the slag react with each other to change into FeO and CO gas, and the supplied carbon dioxide is used to generate calcium carbonate.
- the temperature is set to 1200° C. or lower. Moreover, from the viewpoint of realizing a higher carbonic acid fixation rate, the temperature is preferably 1100° C. or lower, more preferably 1000° C. or lower.
- the method for setting the temperature of the CaO-containing material within the above range is not particularly limited, but for example, when the temperature of the CaO-containing material after hot crushing is within the above range, the carbonation treatment of the present embodiment is performed as it is. be able to.
- the carbonation treatment time (gas blowing time) when the temperature of the CaO-containing substance is within the above range shall be 10 minutes or longer. Thereby, a high carbonic acid fixation rate can be realized. If the treatment time is less than 10 minutes, the treatment time is too short to achieve a high carbonic acid fixation rate. From the viewpoint of achieving a higher carbonic acid fixation rate, the treatment time is preferably 30 minutes or longer. On the other hand, if the treatment time is too long, the temperature of the CaO-containing substance is lowered, which is not preferable. Therefore, the treatment time is preferably 180 minutes or less, more preferably 60 minutes or less.
- the carbonation treatment may be performed by arranging the CaO-containing substance in the atmosphere, or by storing the CaO-containing substance in a closed container and performing it in the closed container.
- the initial atmosphere in the sealed container is not particularly limited, and may be air or an inert gas such as nitrogen (N 2 ).
- the carbonation treatment may be performed while stirring the CaO-containing substance by, for example, rotating the closed container.
- the temperature of the atmosphere in which the CaO-containing substance is placed during the carbonation treatment is preferably the same as the temperature of the CaO-containing substance.
- the gas (supply gas) that is blown onto the CaO-containing material is not particularly limited as long as it contains carbon dioxide.
- an example of a preferred feed gas is a gas containing water vapor and carbon dioxide, preferably a gas consisting of water vapor and carbon dioxide.
- the flow ratio (volume ratio) of H 2 O/(H 2 O+CO 2 ) in the supplied gas is preferably 0.03 or more and 0.30 or less.
- the flow ratio is preferably 0.30 or less.
- the amount of carbon dioxide supplied is preferably 5 kg or more, more preferably 50 kg or more, per 1 ton of the CaO-containing substance, regardless of whether the supplied gas contains water vapor. .
- the upper limit of the amount of carbon dioxide supplied is not particularly limited, but if the amount of gas supplied is too large relative to the mass of the CaO-containing material, the temperature of the CaO-containing material will decrease due to the supplied gas. It is preferably 200 kg or less per 1 ton of the CaO-containing substance.
- the temperature of the supply gas is preferably 20° C. or higher and 1300° C. or lower, and more preferably the same temperature as the CaO-containing substance.
- a method for producing a carbonated substance according to an embodiment of the present invention includes a step of carbonating a CaO-containing substance by the method for carbonating a CaO-containing substance according to the above embodiment to produce a carbonated substance. This makes it possible to produce a carbonated substance in which a large amount of carbon dioxide is fixed.
- Example 1 A carbonation treatment test was conducted in the following procedure. First, unaged decarburized slag, which is a kind of steelmaking slag, was prepared as a CaO-containing substance. The decarburized slag was classified to obtain CS-40 particle size distribution. Table 1 shows the composition of the decarburized slag. Place decarburized slag in an electric furnace, set the inside of the electric furnace to a N 2 atmosphere, heat the decarburized slag to the slag temperature shown in Table 2, and in the state of that temperature, gas having the composition shown in Table 2 (gas Temperature: 100° C.) was blown in for 10 minutes to perform carbonation treatment. In each example, the amount of carbon dioxide supplied was 200 kg per 1 ton of decarburized slag. After furnace cooling, the carbonic acid fixation rate was measured from the amount of change in slag weight. Table 2 and FIG. 1 show the test results.
- Example 2 Of the main mineral phases contained in steelmaking slag, single phases of five types of mineral phases shown in Table 3 were produced, and the particle diameter was made 0.075 mm or less.
- TG-DTA device thermogravimetric differential thermal analysis device
- N2 gas is blown until the temperature of the mineral phase reaches 500 ° C., the temperature of the mineral phase is raised in the N2 atmosphere, and the mineral phase is
- the N 2 gas was switched to gas having the composition shown in Table 3 (gas temperature: 100° C.) and blown into each mineral phase to carry out the carbonation treatment. Carbonation was carried out for 60 minutes, after which the N2 gas was switched to cool each mineral phase.
- the amount of carbon dioxide supplied was 100 kg per 1 ton of the mineral phase.
- Carbonic acid fixation rate in each mineral phase was measured from the amount of change in weight of each mineral phase. Table 3 shows the results.
- Example 3 A single phase of ⁇ -C 2 S was produced using the reagent, and the particle size was 0.075 mm or less.
- TG-DTA apparatus thermogravimetric differential thermal analysis apparatus
- N 2 gas is blown until the temperature of ⁇ -C 2 S reaches the value shown in Table 4, and ⁇ -C is measured in the N 2 atmosphere.
- 2S was heated, and when the temperature of ⁇ -C 2 S reached the value shown in Table 4, the N 2 gas was changed to a gas having the composition shown in Table 4 for ⁇ -C 2 S (gas temperature: 100 °C) and blown in to carry out the carbonation treatment.
- a high carbonic acid fixation rate can be achieved without adjusting the water content of the CaO-containing substance. Since fixing carbon dioxide in the atmosphere to a CaO-containing substance at a high carbonic acid fixation rate in this way greatly contributes to the reduction of carbon dioxide emissions, the present invention is an industrially extremely effective process.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Structural Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Inorganic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020237042967A KR20240006685A (ko) | 2021-06-18 | 2022-04-11 | CaO 함유 물질의 탄산화 방법 및 탄산화 물질의 제조 방법 |
JP2022542102A JP7405263B2 (ja) | 2021-06-18 | 2022-04-11 | CaO含有物質の炭酸化方法及び炭酸化物質の製造方法 |
CN202280042509.5A CN117500766A (zh) | 2021-06-18 | 2022-04-11 | 含CaO物质的碳酸化方法和碳酸化物质的制造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021102032 | 2021-06-18 | ||
JP2021-102032 | 2021-06-18 |
Publications (1)
Publication Number | Publication Date |
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WO2022264668A1 true WO2022264668A1 (fr) | 2022-12-22 |
Family
ID=84527332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2022/017523 WO2022264668A1 (fr) | 2021-06-18 | 2022-04-11 | Procédé pour la carbonatation d'une substance contenant du cao et procédé pour la production d'une substance carbonatée |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP7405263B2 (fr) |
KR (1) | KR20240006685A (fr) |
CN (1) | CN117500766A (fr) |
TW (1) | TW202300456A (fr) |
WO (1) | WO2022264668A1 (fr) |
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JPH05238791A (ja) * | 1992-02-28 | 1993-09-17 | Sumitomo Cement Co Ltd | コンクリート用人工骨材の製造方法およびコンクリート用人工骨材 |
JPH06206743A (ja) * | 1993-01-08 | 1994-07-26 | Kawasaki Steel Corp | 製鋼スラグの改質方法 |
JP2000157094A (ja) * | 1998-11-27 | 2000-06-13 | Nkk Corp | 水中沈設用石材及びその製造方法 |
JP2004238234A (ja) * | 2003-02-04 | 2004-08-26 | Jfe Steel Kk | 風砕スラグおよびその製造方法および風砕スラグの処理方法およびコンクリート用細骨材 |
JP2012087002A (ja) * | 2010-10-19 | 2012-05-10 | Sumitomo Metal Ind Ltd | 製鋼スラグおよびその製造方法 |
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JP2019184122A (ja) * | 2018-04-06 | 2019-10-24 | Jfeスチール株式会社 | 高温凝固物の熱回収装置および高温凝固物からの熱回収方法 |
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CN101269920A (zh) * | 2007-03-23 | 2008-09-24 | 宝山钢铁股份有限公司 | 钢渣碳酸化处理方法 |
JP7378213B2 (ja) | 2018-07-11 | 2023-11-13 | 太平洋セメント株式会社 | 二酸化炭素の固定化方法 |
CN110982967B (zh) * | 2019-12-25 | 2022-02-11 | 江西理工大学 | 利用水和二氧化碳实现钢渣淬化及余热回收的方法与装置 |
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2022
- 2022-04-11 CN CN202280042509.5A patent/CN117500766A/zh active Pending
- 2022-04-11 JP JP2022542102A patent/JP7405263B2/ja active Active
- 2022-04-11 KR KR1020237042967A patent/KR20240006685A/ko unknown
- 2022-04-11 WO PCT/JP2022/017523 patent/WO2022264668A1/fr active Application Filing
- 2022-05-13 TW TW111117952A patent/TW202300456A/zh unknown
Patent Citations (9)
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JPH05238791A (ja) * | 1992-02-28 | 1993-09-17 | Sumitomo Cement Co Ltd | コンクリート用人工骨材の製造方法およびコンクリート用人工骨材 |
JPH06206743A (ja) * | 1993-01-08 | 1994-07-26 | Kawasaki Steel Corp | 製鋼スラグの改質方法 |
JP2000157094A (ja) * | 1998-11-27 | 2000-06-13 | Nkk Corp | 水中沈設用石材及びその製造方法 |
JP2004238234A (ja) * | 2003-02-04 | 2004-08-26 | Jfe Steel Kk | 風砕スラグおよびその製造方法および風砕スラグの処理方法およびコンクリート用細骨材 |
JP2012087002A (ja) * | 2010-10-19 | 2012-05-10 | Sumitomo Metal Ind Ltd | 製鋼スラグおよびその製造方法 |
JP2014234332A (ja) * | 2013-06-04 | 2014-12-15 | 新日鐵住金株式会社 | 製鋼スラグの炭酸化処理方法 |
WO2019064052A1 (fr) * | 2017-09-28 | 2019-04-04 | Arcelormittal | Procédé de fabrication continue de laitier d'aciérie solidifié et dispositif associé |
JP2019184122A (ja) * | 2018-04-06 | 2019-10-24 | Jfeスチール株式会社 | 高温凝固物の熱回収装置および高温凝固物からの熱回収方法 |
CN212451213U (zh) * | 2020-09-18 | 2021-02-02 | 中冶节能环保有限责任公司 | 一种利用钢渣捕集CO2消除游离CaO的装置 |
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JPWO2022264668A1 (fr) | 2022-12-22 |
JP7405263B2 (ja) | 2023-12-26 |
CN117500766A (zh) | 2024-02-02 |
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