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WO2009142349A1 - Clinker minéral de ciment, sa préparation et ciment minéral contenant le clinker - Google Patents

Clinker minéral de ciment, sa préparation et ciment minéral contenant le clinker Download PDF

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Publication number
WO2009142349A1
WO2009142349A1 PCT/KR2008/003382 KR2008003382W WO2009142349A1 WO 2009142349 A1 WO2009142349 A1 WO 2009142349A1 KR 2008003382 W KR2008003382 W KR 2008003382W WO 2009142349 A1 WO2009142349 A1 WO 2009142349A1
Authority
WO
WIPO (PCT)
Prior art keywords
source
cement
inorganic cement
clinker
slag
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/KR2008/003382
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English (en)
Inventor
Hi-Dong Shin
Bong Hur
Joon Mok Jo
Kang Hyun Kim
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41340270&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2009142349(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to CN200880129382.0A priority Critical patent/CN102119132B/zh
Priority to BRPI0822915-5A priority patent/BRPI0822915A2/pt
Priority to JP2011510402A priority patent/JP2011520756A/ja
Publication of WO2009142349A1 publication Critical patent/WO2009142349A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • C04B7/00—Hydraulic cements
    • C04B7/14—Cements containing slag
    • C04B7/147—Metallurgical slag
    • 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
    • C04B7/00—Hydraulic cements
    • C04B7/24—Cements from oil shales, residues or waste other than slag
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/08—Slag cements
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • 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

  • limestone serving as a main raw material, silica, clay and ferruginous raw materials are combined based on cement clinker modulus (for example, LSF, SM, IM) .
  • cement clinker modulus for example, LSF, SM, IM
  • the combination ratio thereof in each cement factory is different depending on the quality grade of a raw material, but, generally, the raw material has a combination ratio of 85 ⁇ 95 parts by weight of limestone, 0-5 parts by weight of silica, 0-7 parts by weight of clay and 0-5 parts by weight of ferruginous raw materials.
  • limestone, which is used as a main raw material of cement includes 75-95 parts by weight of CaCO 3 .
  • CaCO 3 included in limestone is decomposed into CaO and CO 2 through a decarboxylation process .
  • CaO is used to produce cement in post-processes, and CO 2 is discharged to air.
  • the amount of CO 2 discharged to air during the decarboxylation process is approximately 0.30-0.42 tons per 1 ton of limestone.
  • CO 2 is additionally discharged to air.
  • the maximum temperature required by a calcination process in which alite (3CaOSiO 2 ) , belite (2CaOSiO 2 ), aluminate (3CaOAl 2 O 3 ) and ferrite (4CaOAl 2 O 3 Fe 2 O 3 ) crystals are formed and grown such that cement can serve as an inorganic binder is 1450 ⁇ 1500 ° C. Consequently, in the conventional cement manufacturing technologies, a decarboxylation process and a calcination process are necessarily required, and thus a large amount of CO 2 is generated through these processes.
  • chemical components of slag are similar to chemical components (CaO, SiO 2 , Al 2 O 3 , Fe 2 O 3 and the like) of cement clinker, and a part of the slag has component contents similar to those of cement clinker.
  • the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide cement for civil engineering and construction, which can decrease CO 2 by greatly reducing the used amount of limestone, which is a main raw material, and the consumption of fuel, such as coal, etc .
  • the inorganic cement may further comprise a setting retarder.
  • the inorganic cement may further comprise a mixing material .
  • the setting retarder may be gypsum
  • the mixing material may be blast-furnace slag, fly ash or a mixture thereof.
  • the amount of limestone used is decreased by about 30-50% compared to conventional technologies when 1 ton of cement is produced, the amount of CO 2 generated by the decarboxylation of limestone can be decreased by about 30 ⁇ 60% compared to conventional technologies, and side products can be used as high value-added products, and forest destruction due to the mining of limestone can be minimized.
  • the melting heat of hot molten slag is used as a main heat source, the used amount of calcination energy, which is a main energy source in the manufacture of conventional clinker and cement, can be reduced, and thus the consumption of energy can be reduced and the amount of CO 2 generated by the combustion of fuel can also be reduced. Consequently, the present invention can realize the reduction in the amount of CO 2 emission, the recycling of side products, the minimization of the mining of limestone, and the reduction in energy consumption .
  • FIG. 2 is a view showing the state of CaO-Si ⁇ 2 in a lime rich portion
  • FIG. 4 is scanning electron microscope photographs showing a microstructure of a 1-day hydrate of the cement of Example 2-2 manufactured using 40% of hot molten blast- furnace slag
  • FIG. 5 is scanning electron microscope photographs showing a microstructure of a 1-day hydrate of ordinary Portland cement (OPC) ,
  • FIG. 6 is scanning electron microscope photographs showing a microstructure of a 7 -day hydrate of the cement of Example 2-2 manufactured using 40% of hot molten blastfurnace slag, and
  • FIG. 7 is scanning electron microscope photographs showing a microstructure of a 7-day hydrate of ordinary Portland cement (OPC) .
  • hot molten slag having a temperature of 1000 ° C or more which is produced as a side product in a melting furnace, such as a blast furnace, a converter furnace, an electric furnace or the like, in a steel making process, is used as a main raw material and, if necessary, CaO, SiO 2 , Al 2 O 3 and Fe 2 O 3 sources are added to the hot molten slag as subsidiary raw materials, thereby converting the components of the hot molten slag into the components of cement clinker.
  • the amounts of the added subsidiary raw materials may be set such that the molten mixture has a lime saturation modulus
  • the subsidiary raw materials can be melted together with the main raw material by using the melting heat of the hot molten slag having a temperature of 1000 ° C or more as a main heat source and, if necessary, by additionally heating the hot molten slag to a temperature of 1200 ⁇ 1800 ° C.
  • the molten mixture obtained through the above melting process is cooled and solidified to obtain cement clinker.
  • quicklime, limestone or industrial side products and waste having high CaO content be used as the CaO source
  • silica (quartzite) casting sand or industrial side products and waste having high SiO 2 content be used as the SiO 2 source
  • clay, shale or industrial side products and waste having high AI 2 O 3 content be used as the Al 2 O 3 source
  • ironstone, ferruginous raw materials or industrial side products and waste having high Fe 2 O 3 content be used as the
  • the present invention although it is similar to the method of preparing cement clinker, proposed by W. Gutt et al., is to prepare cement clinker using molten slag as a main raw material compared to conventional cement manufacture processes in which limestone is used as a main raw material .
  • the present invention provides cement manufactured by using the clinker as a main raw material and adding a commonly-known setting retarder, such as gypsum, to the clinker, or provides mixed cement manufactured by mixing blast-furnace slag, fly ash and the like with the clinker or cement.
  • a commonly-known setting retarder such as gypsum
  • blast-furnace slag is used as a main raw material .
  • the chemical components of the blast-furnace slag and other raw materials are given in Table 2.
  • Table 2 since blast-furnace slag has much lower heavy metal content than ordinary Portland cement (OPC) , cement manufactured using the blast-furnace slag as a main raw material also has much lower heavy metal content than conventional ordinary Portland cement (OPC) .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

La présente invention concerne un clinker minéral de ciment préparé en utilisant comme matière première principale des scories fondues à chaud à une température de 1 000°C ou plus élevée, produites comme sous-produit d'un four de fusion, par exemple un haut-fourneau, un four convertisseur, un four électrique ou similaires dans un procédé de fabrication d'acier, et en utilisant la chaleur des scories proprement dites comme source principale de chaleur nécessaire pour faire fondre les matières premières, un procédé pour sa préparation et un ciment minéral qui le contient.
PCT/KR2008/003382 2008-05-21 2008-06-16 Clinker minéral de ciment, sa préparation et ciment minéral contenant le clinker Ceased WO2009142349A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200880129382.0A CN102119132B (zh) 2008-05-21 2008-06-16 无机水泥熟料、其制备方法以及包含所述熟料的无机水泥
BRPI0822915-5A BRPI0822915A2 (pt) 2008-05-21 2008-06-16 Clínquer de cimento inorgânico, sua preparação e cimento inorgânico que compreende o clínquer
JP2011510402A JP2011520756A (ja) 2008-05-21 2008-06-16 高温溶融状態のスラグを用いた無機セメントクリンカー、その製造方法および前記クリンカーを含有する無機セメント

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2008-0046918 2008-05-21
KR20080046918A KR100932590B1 (ko) 2008-05-21 2008-05-21 고온 용융상태의 슬래그를 이용한 무기시멘트 클링커와 그제조방법 및 상기 클링커를 함유하는 무기시멘트

Publications (1)

Publication Number Publication Date
WO2009142349A1 true WO2009142349A1 (fr) 2009-11-26

Family

ID=41340270

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/003382 Ceased WO2009142349A1 (fr) 2008-05-21 2008-06-16 Clinker minéral de ciment, sa préparation et ciment minéral contenant le clinker

Country Status (5)

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JP (1) JP2011520756A (fr)
KR (1) KR100932590B1 (fr)
CN (1) CN102119132B (fr)
BR (1) BRPI0822915A2 (fr)
WO (1) WO2009142349A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025243012A1 (fr) * 2024-05-21 2025-11-27 Cambridge Electric Cement Procédé

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101088183B1 (ko) 2009-03-11 2011-12-30 (주)세와비전 용융 고로슬래그를 이용한 포틀랜드 시멘트 제조방법
TWI561496B (en) * 2012-04-05 2016-12-11 China Steel Corp Far-infrared emitting material and method of making the same
KR101560381B1 (ko) 2015-05-08 2015-10-19 주식회사 동서 시멘트 클링커를 이용한 무기성 슬러지 고화제 조성물에 의한 철광석 대체품 제조방법 및 석회석 대체품 제조방법
CN109180035B (zh) * 2018-09-27 2021-06-08 吉林亚泰明城水泥有限公司 一种硅酸盐水泥熟料及其制备方法和生产设备
CN112028507A (zh) * 2020-09-17 2020-12-04 淄博云鹤彩色水泥有限公司 一种利用废料制备的堵漏防水剂及其制备方法
CN112679128A (zh) * 2021-01-20 2021-04-20 张绪祎 增硫的钙、硅、铝氧化物物料液态熔融烧结-冷淬方法
CN114804674B (zh) * 2022-05-16 2023-04-21 江西省建材科研设计院有限公司 一种掺稀散金属富氧熔炼炉渣的低碳熟料、道路水泥及其制备方法
WO2024090580A1 (fr) * 2022-10-28 2024-05-02 グローバル・マテリアルリサーチ株式会社 Procédé de production d'une composition de ciment hydraulique à l'aide de laitier de haut fourneau et de laitier de convertisseur
WO2024090581A1 (fr) * 2022-10-28 2024-05-02 グローバル・マテリアルリサーチ株式会社 Procédé de production d'une composition de ciment hydraulique à l'aide de laitier de four électrique
KR102835121B1 (ko) * 2022-12-20 2025-07-16 현대제철 주식회사 시멘트 원료 대체재 및 그 제조 방법
WO2025225735A1 (fr) * 2024-04-26 2025-10-30 グローバル・マテリアルリサーチ株式会社 Procédé de production d'un ciment hydraulique

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US5393342A (en) * 1992-05-25 1995-02-28 Pelt & Hooykaas B.V. Cement composition and method for the preparation thereof
JPH1015522A (ja) * 1996-07-01 1998-01-20 Chubu Kohan Kk 無機材料
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JP2000281399A (ja) * 1999-03-30 2000-10-10 Taiheiyo Cement Corp セメントクリンカ及びセメント組成物
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5393342A (en) * 1992-05-25 1995-02-28 Pelt & Hooykaas B.V. Cement composition and method for the preparation thereof
JPH1015522A (ja) * 1996-07-01 1998-01-20 Chubu Kohan Kk 無機材料
KR19980051202A (ko) * 1996-12-23 1998-09-15 김종진 고로슬래그, 제강슬래그 및 석회석 부산물을 이용한 포틀랜드 시멘트 클링커의 제조방법
JP2000281399A (ja) * 1999-03-30 2000-10-10 Taiheiyo Cement Corp セメントクリンカ及びセメント組成物
KR20010038096A (ko) * 1999-10-22 2001-05-15 김태식 초기 강도가 향상된 고로슬래그 시멘트 조성물

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025243012A1 (fr) * 2024-05-21 2025-11-27 Cambridge Electric Cement Procédé

Also Published As

Publication number Publication date
KR100932590B1 (ko) 2009-12-21
CN102119132B (zh) 2014-03-19
KR20090120879A (ko) 2009-11-25
JP2011520756A (ja) 2011-07-21
BRPI0822915A2 (pt) 2015-06-23
CN102119132A (zh) 2011-07-06

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