BR112022014666A2 - Grãos para a produção de um produto refratário sinterizado, uma batelada para a produção de um produto refratário sinterizado, um processo para a produção de um produto refratário sinterizado e um produto refratário sinterizado - Google Patents

Grãos para a produção de um produto refratário sinterizado, uma batelada para a produção de um produto refratário sinterizado, um processo para a produção de um produto refratário sinterizado e um produto refratário sinterizado

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Publication number
BR112022014666A2
BR112022014666A2 BR112022014666A BR112022014666A BR112022014666A2 BR 112022014666 A2 BR112022014666 A2 BR 112022014666A2 BR 112022014666 A BR112022014666 A BR 112022014666A BR 112022014666 A BR112022014666 A BR 112022014666A BR 112022014666 A2 BR112022014666 A2 BR 112022014666A2
Authority
BR
Brazil
Prior art keywords
sinterized
refractory product
production
grains
batch
Prior art date
Application number
BR112022014666A
Other languages
English (en)
Inventor
Mancini Fonseca Daniela
Neuböck Rainer
Moulin-Silva Wagner
Original Assignee
Refractory Intellectual Property Gmbh & Co Kg
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 Refractory Intellectual Property Gmbh & Co Kg filed Critical Refractory Intellectual Property Gmbh & Co Kg
Publication of BR112022014666A2 publication Critical patent/BR112022014666A2/pt

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    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • C04B35/043—Refractories from grain sized mixtures
    • C04B35/047—Refractories from grain sized mixtures containing chromium oxide or chrome ore
    • C04B35/0473—Refractories from grain sized mixtures containing chromium oxide or chrome ore obtained from fused grains
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • C04B35/043—Refractories from grain sized mixtures
    • C04B35/047—Refractories from grain sized mixtures containing chromium oxide or chrome ore
    • C04B35/0476—Refractories from grain sized mixtures containing chromium oxide or chrome ore obtained from prereacted sintered grains ("simultaneous sinter")
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
    • C04B35/62665—Flame, plasma or melting treatment
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/628—Coating the powders or the macroscopic reinforcing agents
    • C04B35/62802—Powder coating materials
    • C04B35/62805—Oxide ceramics
    • C04B35/62818—Refractory metal oxides
    • C—CHEMISTRY; METALLURGY
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/628—Coating the powders or the macroscopic reinforcing agents
    • C04B35/62886—Coating the powders or the macroscopic reinforcing agents by wet chemical techniques
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/628—Coating the powders or the macroscopic reinforcing agents
    • C04B35/62889—Coating the powders or the macroscopic reinforcing agents with a discontinuous coating layer
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/628—Coating the powders or the macroscopic reinforcing agents
    • C04B35/62897—Coatings characterised by their thickness
    • C—CHEMISTRY; METALLURGY
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/63416—Polyvinylalcohols [PVA]; Polyvinylacetates
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
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    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3241—Chromium oxides, chromates, or oxide-forming salts thereof
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3241—Chromium oxides, chromates, or oxide-forming salts thereof
    • C04B2235/3243—Chromates or chromites, e.g. aluminum chromate, lanthanum strontium chromite
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5445—Particle size related information expressed by the size of the particles or aggregates thereof submicron sized, i.e. from 0,1 to 1 micron
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6567—Treatment time

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Thermal Sciences (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

GRÃOS PARA A PRODUÇÃO DE UM PRODUTO REFRATÁRIO SINTERIZADO, UMA BATELADA PARA A PRODUÇÃO DE UM PRODUTO REFRATÁRIO SINTERIZADO, UM PROCESSO PARA A PRODUÇÃO DE UM PRODUTO REFRATÁRIO SINTERIZADO E UM PRODUTO REFRATÁRIO SINTERIZADO. Trata-se de grãos para a produção de um produto refratário sinterizado, sendo que os ditos grãos compreendem um número de magnésia-cromita, em que a superfície do dito núcleo de magnésia-cromita tem um revestimento que compreende pelo menos parcialmente óxido de crômio.
BR112022014666A 2020-02-20 2021-02-02 Grãos para a produção de um produto refratário sinterizado, uma batelada para a produção de um produto refratário sinterizado, um processo para a produção de um produto refratário sinterizado e um produto refratário sinterizado BR112022014666A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20158612.0A EP3868731B1 (en) 2020-02-20 2020-02-20 Grains for the production of a sintered refractory product, a batch for the production of a sintered refractory product, a process for the production of a sintered refractory product and a sintered refractory product
PCT/EP2021/052450 WO2021165034A1 (en) 2020-02-20 2021-02-02 Grains for the production of a sintered refractory product, a batch for the production of a sintered refractory product, a process for the production of a sintered refractory product and a sintered refractory product

Publications (1)

Publication Number Publication Date
BR112022014666A2 true BR112022014666A2 (pt) 2022-09-20

Family

ID=69726443

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112022014666A BR112022014666A2 (pt) 2020-02-20 2021-02-02 Grãos para a produção de um produto refratário sinterizado, uma batelada para a produção de um produto refratário sinterizado, um processo para a produção de um produto refratário sinterizado e um produto refratário sinterizado

Country Status (7)

Country Link
EP (1) EP3868731B1 (pt)
KR (1) KR20220141290A (pt)
CN (1) CN114929646A (pt)
BR (1) BR112022014666A2 (pt)
ES (1) ES2937967T3 (pt)
PL (1) PL3868731T3 (pt)
WO (1) WO2021165034A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024041935A1 (en) 2022-08-24 2024-02-29 Refractory Intellectual Property Gmbh & Co. Kg Method for producing silicon carbide coated refractory grains and silicon carbide coated refractory grains

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB461240A (en) * 1934-07-06 1937-02-08 Silika Und Schamotte Fabriken Improvements in and relating to the manufacture of refractory ware
US3521870A (en) * 1969-05-16 1970-07-28 Dresser Ind Basic refractory monolith
DE2044289C2 (de) * 1970-09-07 1975-01-23 Oesterreichisch-Amerikanische Magnesit Ag, Radenthein, Kaernten (Oesterreich) Verfahren zur Herstellung eines feuerfesten Sintermaterials
AT318463B (de) * 1972-07-17 1974-10-10 Veitscher Magnesitwerke Ag Feuerfeste Masse
AT344213B (de) * 1975-10-08 1978-07-10 Veitscher Magnesitwerke Ag Feuerfeste auskleidung von stationaeren oder beweglichen gefaessen zur aufnahme von roheisen
FR2335468A1 (fr) * 1975-12-15 1977-07-15 Gen Refractories Co Elements refractaires basiques sans liant externe et leur procede de realisation
JPS5954670A (ja) * 1982-09-21 1984-03-29 ハリマセラミック株式会社 マグネシアークロム質レンガの製造方法
JPS61222955A (ja) * 1985-03-28 1986-10-03 東京窯業株式会社 マグネシア耐火材料
JPS63252959A (ja) * 1987-04-09 1988-10-20 東京窯業株式会社 マグネシア・クロム系ダイレクトボンド耐火物
US5010046A (en) * 1989-03-22 1991-04-23 Norton Company Chromia-magnesia refractory body
JP2518422B2 (ja) * 1989-10-26 1996-07-24 住友金属工業株式会社 マグネシア・クロム質れんがの製造方法
CN101555147A (zh) * 2009-05-19 2009-10-14 鲁有 柔性方镁石复合尖晶石砖
JP5748022B2 (ja) * 2012-03-05 2015-07-15 Ｊｆｅスチール株式会社 定形耐火物およびその製造方法
RU2634140C1 (ru) * 2016-09-21 2017-10-24 Общество С Ограниченной Ответственностью "Группа "Магнезит" Хромитопериклазовый огнеупор
CN106631072B (zh) * 2016-12-29 2019-05-28 浙江自立新材料股份有限公司 一种用于浇注料的梯度材料及其制备方法
CN107162572A (zh) * 2017-05-19 2017-09-15 浙江自立新材料股份有限公司 一种浇注料用骨料及其制备方法

Also Published As

Publication number Publication date
WO2021165034A1 (en) 2021-08-26
ES2937967T3 (es) 2023-04-03
PL3868731T3 (pl) 2023-03-13
CN114929646A (zh) 2022-08-19
EP3868731A1 (en) 2021-08-25
EP3868731B1 (en) 2022-12-14
KR20220141290A (ko) 2022-10-19

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