CN101973771A - Ferrous aluminum and magnesium system refractory raw material and preparation method thereof - Google Patents

Ferrous aluminum and magnesium system refractory raw material and preparation method thereof Download PDF

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Publication number
CN101973771A
CN101973771A CN 201010298778 CN201010298778A CN101973771A CN 101973771 A CN101973771 A CN 101973771A CN 201010298778 CN201010298778 CN 201010298778 CN 201010298778 A CN201010298778 A CN 201010298778A CN 101973771 A CN101973771 A CN 101973771A
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raw material
refractory raw
powder
preparation
ferrous
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CN101973771B (en
Inventor
陈俊红
封吉圣
郑本水
孙加林
李勇
薛文东
石志民
赵兵
朱波
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SHANDONG REFRACTORY ENGINEERING RESEARCH CENTER
SHANDONG SHENGCHUAN CERAMICS CO Ltd
Zibo Luzhong Refractory Co Ltd
University of Science and Technology Beijing USTB
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SHANDONG REFRACTORY ENGINEERING RESEARCH CENTER
SHANDONG SHENGCHUAN CERAMICS CO Ltd
Zibo Luzhong Refractory Co Ltd
University of Science and Technology Beijing USTB
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Priority to CN 201010298778 priority Critical patent/CN101973771B/en
Priority to PCT/CN2010/078475 priority patent/WO2012040948A1/en
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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
    • C04B35/10—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 aluminium oxide
    • C04B35/111—Fine ceramics
    • C04B35/117—Composites
    • 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
    • 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
    • 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
    • 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
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • 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
    • 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
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3272—Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite

Abstract

The invention provides a ferrous aluminum and magnesium system refractory raw material which is a multiple solid solution or composite of ferrous aluminate spinel and/or alumina spinel and/or ferromagnesium solid solution and/or pleonaste. The refractory raw material is prepared by the following steps of: mixing a ferrous compound, an aluminum-containing compound and a magnesium oxide-containing compound according to the ratio; additionally adding 1-6 percent bonding agent; mixing, forming and drying a blank; maintaining the mixture in a high-temperature kiln in the nitrogen atmosphere at the temperature of 1,400-1,700DEG C for 2-8 hours; and naturally cooling and taking out the product. In the scheme, the granularities of the alumina-containing raw material and the ferrous raw material are less than 180 meshes. The invention aims at synthesizing the ferrous aluminum and magnesium system refractory raw material with stable performance and avoids the volume effect due to the change of ferrum among different valence states. The method has simple synthesis process and is easy to implement.

Description

A kind of ferrous magnalium is refractory raw material and preparation method thereof
Technical field
The invention belongs to technical field of refractory materials, relate to the method that synthesizing ferrous magnalium is a refractory raw material.
Background technology
The researchist of magnesium company difficult to understand (RHI) finds ferrous aluminum spinel is incorporated in the magnesia material, not only can not reduce the high-temperature behavior of material significantly, but also can significantly improve the extension kliner coating performance of magnesian in cement rotary kiln, therefore, the magnesia brick of interpolation ferrous aluminum spinel also just becomes the Chrome-free formed material that is hopeful comprehensively to substitute magnesia chrome brick most.
Ferrous aluminum spinel exists few at occurring in nature, can only adopt synthetic.(CN200710053793.3) adopt Al such as " a kind of method of synthesizing ferrum-aluminium spinelle " 2O 3, Al (OH) 3, Al 2O 3H 2O and alumina etc. and Fe 2O 3, FeO and Fe 3O 4Mix Deng iron containing compounds; For improving the sintering character of material, in the proportioning of material, introduce TiO 2As sintering aid.And " a kind of synthesizing ferrum-aluminium spinelle and preparation method thereof " also is to adopt 180 purpose Al (CN200510019267.6) 2O 3, Al (OH) 3, Al 2O 3H 2O and alumina etc. and Fe 2O 3, FeO and Fe 3O 4Mix Deng iron containing compounds, it is synthetic that carbon technology is buried in employing.
In burying the carbon synthesis technique, the ferriferous oxide in the batching exists part to change the possibility of fe into, therefore, synthesizes single-phase FeOAl 2O 3Difficulty very big, and the fe that exists will change Fe in burning till, using 2O 3, and then have influence on the high-temperature behavior of material.
And picture TiO 2Etc. the introducing of the agglutinant of class, also will have influence on the high-temperature behavior of material.
The fusing point of MgO reaches 2800 ℃, is the main raw material of fire resisting material field.MgO is unlimited solid solution FeO and can not reduce the performance of material significantly not only, and can also be with the form solid solution ferrous aluminum spinel of magnesium-aluminium spinel.
Summary of the invention
For the ferrous magnalium that synthesizes stable performance is a refractory raw material, the volume effect of avoiding iron to change between different valence state and causing, the ferrous magnalium that the present invention aims to provide multiple sosoloid of a kind of synthesis technique collection simple, easy to implement and multiple spinel is refractory raw material and preparation method thereof.
For achieving the above object, the technical solution adopted in the present invention is: a kind of ferrous magnalium system refractory raw material is provided, and this material is the multinomial sosoloid or the mixture of ferrous aluminum spinel and/or magnesium-aluminium spinel and/or ferromagnesium sosoloid and/or pleonast(e).
This refractory raw material detects through XRD, and phase is FeAl 2O 4And/or MgAl 2O 2And/or Mg (Fe) O and/or MgFe 2O 4
The chemical analysis of this refractory raw material is Fe 2O 3, Al 2O 3, MgO, wherein Fe 2O 3: Al 2O 3Ratio is 15: 85 to 45: 55, and contains with Fe 2O 3+ Al 2O 3The MgO of the 0-33% quality of metering, described chemical composition all is that FeO is scaled Fe 2O 3Calculate.
The present invention also provides a kind of preparation method that to prepare described ferrous magnalium be refractory raw material, described preparation method is with iron containing compounds, aluminum contained compound, contains the described ratio batching of magnesium oxide material, add the 1-6% wedding agent, through behind mixing, moulding, the body drying under nitrogen atmosphere, in the high temperature kiln through 1400-1700 ℃, the insulation 2-8 hour, take out behind the naturally cooling; In such scheme, salic type raw material and contain the granularity of swage raw material all below 180 orders.
In this preparation method, described aluminum contained compound is one or more in corundum, sintered bauxite, diaspore, aluminium hydroxide, the commercial alumina; Described magnesium oxide derives from one or more in magnesite, light-burning magnesium powder, middle-grade magnesia, highly-purity magnesite, electrosmelted magnesite clinker, the seawater magnesia; Described iron containing compounds derives from one or more in roll scale, red iron oxide, the iron powder; Used wedding agent comprises one or more in starch, resin, dextrin, the Mierocrystalline cellulose.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, the present invention is described in more detail.
Embodiment 1:
According to mill scale fine powder and commercial alumina powder according to mass ratio Fe 2O 3: Al 2O 3Be prepare burden at 15: 85, mill altogether, it is mixing to add then 3% phenolic resins.Entering the high temperature kiln after forcing press moulding, drying heats up; In the high temperature kiln through the naturally cooling taking-up after 2-8 hour of insulation under 1400-1700 ℃, nitrogen atmosphere.
The refractory raw material that present embodiment synthesized, its composition are Fe 2O 314.9%, Al 2O 384.6%; Detect through X-ray diffraction, its phase is mainly FeAl 2O 4
Embodiment 2:
According to iron oxide red fine powder and aluminium hydrate powder according to mass ratio Fe 2O 3: Al 2O 3Be to prepare burden at 20: 80, add with Fe again 2O 3+ Al 2O 320% light-burning magnesium powder of calculated mass, mill altogether, it is mixing to add then 5% phenolic resins.Entering the high temperature kiln after forcing press moulding, drying heats up; In the high temperature kiln through the naturally cooling taking-up after 2-8 hour of insulation under 1400-1700 ℃, nitrogen atmosphere.
The refractory raw material that present embodiment synthesized, its composition are Fe 2O 316.2%, Al 2O 366.3%, MgO 16.5%; Detect through X-ray diffraction, its phase is mainly MgAl 2O 4And FeAl 2O 4Deng.
Embodiment 3:
According to the mixture of iron oxide red fine powder and fe and corundum aluminium powder according to mass ratio Fe 2O 3: Al 2O 3Be to prepare burden at 20: 80, add with Fe again 2O 3+ Al 2O 320% electrofusion magnesia powder of calculated mass, mill altogether, it is mixing to add then 2% dextrin.Entering the high temperature kiln after forcing press moulding, drying heats up; In the high temperature kiln through the naturally cooling taking-up after 2-8 hour of insulation under 1400-1700 ℃, nitrogen atmosphere.
The refractory raw material that present embodiment synthesized, its composition are Fe 2O 316.3%, Al 2O 366.1%, MgO 16.4%; Detect through X-ray diffraction, its phase is mainly MgAl 2O 4And FeAl 2O 4Deng.
Embodiment 4:
According to mill scale fine powder and sintering calcined bauxite in powder according to mass ratio Fe 2O 3: Al 2O 3Be to prepare burden at 45: 55, add with Fe again 2O 3+ Al 2O 333% highly-purity magnesite powder of calculated mass, mill altogether, it is mixing to add then 4% phenolic resins.Entering the high temperature kiln after forcing press moulding, drying heats up; In the high temperature kiln through the naturally cooling taking-up after 2-8 hour of insulation under 1400-1700 ℃, nitrogen atmosphere.
The refractory raw material that present embodiment synthesized, its composition are Fe 2O 333.9%, Al 2O 341.3%, MgO 25.2%; Detect through X-ray diffraction, its phase is mainly Mg (Fe) O, FeAl 2O 4And MgAl 2O 4Deng.
Embodiment 5:
According to iron oxide red fine powder and sintering alumina fine powder according to mass ratio Fe 2O 3: Al 2O 3Be to prepare burden at 45: 55, add with Fe again 2O 3+ Al 2O 333% electrofusion magnesia powder of calculated mass, mill altogether, it is mixing to add then 2% starch.Entering the high temperature kiln after forcing press moulding, drying heats up; In the high temperature kiln through the naturally cooling taking-up after 2-8 hour of insulation under 1400-1700 ℃, nitrogen atmosphere.
The refractory raw material that present embodiment synthesized, its composition are Fe 2O 334.2%, Al 2O 341.4%, MgO 25.3%; Detect through X-ray diffraction, its phase is mainly MgFe 2O 4, Mg (Fe) O, FeAl 2O 4And MgAl 2O 4Deng.
Though the present invention with preferred embodiment openly as above, they are not to be used for limiting the present invention, and the content that protection scope of the present invention should be defined with the application's claim protection domain is as the criterion.Anyly have the knack of present technique field person, without departing from the spirit and scope of the present invention, various variations of being done or be equal to replacement all should belong to protection scope of the present invention.

Claims (9)

1. a ferrous magnalium is a refractory raw material, it is characterized in that, this raw material is the multinomial sosoloid or the mixture of ferrous aluminum spinel and/or magnesium-aluminium spinel and/or ferromagnesium sosoloid and/or pleonast(e).
2. refractory raw material according to claim 1 is characterized in that, this refractory raw material detects through XRD, and phase is FeAl 2O 4And/or MgAl 2O 4And/or Mg (Fe) O and/or MgFe 2O 4
3. refractory raw material according to claim 1 is characterized in that, its chemical analysis is Fe 2O 3, Al 2O 3, MgO, wherein Fe 2O 3: Al 2O 3Ratio is 15: 85 to 45: 55, and contains with Fe 2O 3+ Al 2O 3The MgO of the 0-33% quality of metering, described chemical composition all is that FeO is scaled Fe 2O 3Calculate.
4. preparation is as the preparation method of the described refractory raw material of claim 1-3, it is characterized in that, described preparation method is with iron containing compounds, aluminum contained compound, contains the described ratio batching of magnesium oxide material, add the 1-6% wedding agent, through behind mixing, moulding, the body drying under nitrogen atmosphere, in the high temperature kiln through 1400-1700 ℃, the insulation 2-8 hour, take out behind the naturally cooling; In such scheme, salic type raw material all is below 180 orders with the granularity that contains the swage raw material.
5. preparation method according to claim 4 is characterized in that, described aluminum contained compound is one or more in corundum, sintered bauxite, diaspore, aluminium hydroxide, the commercial alumina.
6. preparation method according to claim 4 is characterized in that, described magnesium oxide derives from one or more in magnesite, light-burning magnesium powder, middle-grade magnesia, highly-purity magnesite, electrosmelted magnesite clinker, the seawater magnesia.
7. preparation method according to claim 4 is characterized in that described iron containing compounds derives from one or more in roll scale, red iron oxide, the iron powder.
8. preparation method according to claim 4 is characterized in that used wedding agent comprises one or more in starch, resin, dextrin, the Mierocrystalline cellulose.
9. according to the described preparation method of claim 4-8, it is characterized in that, use mill scale and commercial alumina according to mass ratio Fe 2O 3: Al 2O 3Be prepare burden at 15: 85, mill altogether, bond is 3% phenolic resins, forming component is Fe 2O 314.9%, Al 2O 384.6% refractory raw material; Use iron oxide red fine powder and aluminium hydrate powder according to mass ratio Fe 2O 3: Al 2O 3Be to prepare burden at 20: 80, add with Fe again 2O 3+ Al 2O 320% light-burning magnesium powder of calculated mass, mill altogether, bond is 5% phenolic resins, forming component is Fe 2O 316.2%, Al 2O 3The refractory raw material of 66.3%, MgO 16.5%; The mixture of use iron oxide red fine powder and fe and corundum aluminium powder are according to mass ratio Fe 2O 3: Al 2O 3Be to prepare burden at 20: 80, add with Fe again 2O 3+ Al 2O 320% electrofusion magnesia powder of calculated mass, mill altogether, bond is 2% dextrin, forming component is Fe 2O 316.3%, Al 2O 3The refractory raw material of 66.1%, MgO 16.4%; Use mill scale fine powder and sintering calcined bauxite in powder according to mass ratio Fe 2O 3: Al 2O 3Be to prepare burden at 45: 55, add with Fe again 2O 3+ Al 2O 333% highly-purity magnesite powder of calculated mass prepares burden, mill altogether, and bond is 4% phenolic resins, and forming component is Fe 2O 333.9%, Al 2O 3The refractory raw material of 41.3%, MgO 25.2%; Use iron oxide red fine powder and sintering alumina fine powder according to mass ratio Fe 2O 3: Al 2O 3Be to prepare burden at 45: 55, add with Fe again 2O 3+ Al 2O 333% electrofusion magnesia powder of calculated mass prepares burden, mill altogether, and bond is 2% starch, and forming component is Fe 2O 334.2%, Al 2O 3The refractory raw material of 41.4%, MgO 25.3%.
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CN102180684A (en) * 2011-03-09 2011-09-14 淄博工陶耐火材料有限公司 Industrially-synthesized magnesium-iron-aluminum compound spinel and synthetic method thereof
CN102303974A (en) * 2011-08-01 2012-01-04 河南春胜耐材有限公司 Wear-resistance high-density silicon brick for coke ovens and preparation process thereof
CN102432315A (en) * 2011-09-19 2012-05-02 武汉科技大学 High-silicon magnesite synthesized MgAl2O4/MgO-SiC-C fireproof material and preparation method thereof
CN104072171A (en) * 2014-07-14 2014-10-01 淄博市鲁中耐火材料有限公司 Ferrous normagal and preparation method thereof
CN104341164A (en) * 2014-10-22 2015-02-11 山东理工大学 Low-temperature synthesis method of ferrous-aluminous spinel
CN104649691A (en) * 2015-01-08 2015-05-27 洛阳利尔耐火材料有限公司 Thermal shock resistant magnesium spinel brick and preparation method thereof
CN105585322A (en) * 2015-12-21 2016-05-18 洛阳利尔耐火材料有限公司 Slag-corrosion-resistant magnesite-spinel brick and preparation method thereof
WO2017198377A1 (en) * 2016-05-19 2017-11-23 Refratechnik Holding Gmbh Spinel refractory granulates which are suitable for elasticizing heavy-clay refractory products, method for their production and use thereof
WO2017198378A1 (en) * 2016-05-19 2017-11-23 Refratechnik Holding Gmbh Spinel refractory granulates which are suitable for elasticizing heavy-clay refractory products, method for their production and use thereof
CN107382340A (en) * 2017-07-19 2017-11-24 合肥铭佑高温技术有限公司 A kind of preparation method of composition metal refractory material
CN107540351A (en) * 2017-08-28 2018-01-05 江苏诺明高温材料股份有限公司 A kind of high-purity composite of seawater magnesia magnesium aluminate spinel zirconium oxide
CN108793992A (en) * 2018-06-14 2018-11-13 天通控股股份有限公司 A kind of multiphase composite spinelle flexible material manufacturing method

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Publication number Priority date Publication date Assignee Title
CN102180684A (en) * 2011-03-09 2011-09-14 淄博工陶耐火材料有限公司 Industrially-synthesized magnesium-iron-aluminum compound spinel and synthetic method thereof
CN102303974A (en) * 2011-08-01 2012-01-04 河南春胜耐材有限公司 Wear-resistance high-density silicon brick for coke ovens and preparation process thereof
CN102432315A (en) * 2011-09-19 2012-05-02 武汉科技大学 High-silicon magnesite synthesized MgAl2O4/MgO-SiC-C fireproof material and preparation method thereof
CN102432315B (en) * 2011-09-19 2013-08-21 武汉科技大学 High-silicon magnesite synthesized MgAl2O4/MgO-SiC-C fireproof material and preparation method thereof
CN104072171A (en) * 2014-07-14 2014-10-01 淄博市鲁中耐火材料有限公司 Ferrous normagal and preparation method thereof
CN104341164A (en) * 2014-10-22 2015-02-11 山东理工大学 Low-temperature synthesis method of ferrous-aluminous spinel
CN104649691A (en) * 2015-01-08 2015-05-27 洛阳利尔耐火材料有限公司 Thermal shock resistant magnesium spinel brick and preparation method thereof
CN104649691B (en) * 2015-01-08 2016-07-06 洛阳利尔耐火材料有限公司 A kind of anti-thermal shock magnesia-spinel brick and preparation method thereof
CN105585322A (en) * 2015-12-21 2016-05-18 洛阳利尔耐火材料有限公司 Slag-corrosion-resistant magnesite-spinel brick and preparation method thereof
WO2017198377A1 (en) * 2016-05-19 2017-11-23 Refratechnik Holding Gmbh Spinel refractory granulates which are suitable for elasticizing heavy-clay refractory products, method for their production and use thereof
WO2017198378A1 (en) * 2016-05-19 2017-11-23 Refratechnik Holding Gmbh Spinel refractory granulates which are suitable for elasticizing heavy-clay refractory products, method for their production and use thereof
CN109153614A (en) * 2016-05-19 2019-01-04 耐火材料控股有限公司 Suitable for making the fire resisting spinel particle of stoneware refractory product elastification, preparation method and its purposes
CN107382340A (en) * 2017-07-19 2017-11-24 合肥铭佑高温技术有限公司 A kind of preparation method of composition metal refractory material
CN107540351A (en) * 2017-08-28 2018-01-05 江苏诺明高温材料股份有限公司 A kind of high-purity composite of seawater magnesia magnesium aluminate spinel zirconium oxide
CN108793992A (en) * 2018-06-14 2018-11-13 天通控股股份有限公司 A kind of multiphase composite spinelle flexible material manufacturing method

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