CN106431435A - Porous periclase-forsterite multiphase material and preparation method thereof - Google Patents

Porous periclase-forsterite multiphase material and preparation method thereof Download PDF

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Publication number
CN106431435A
CN106431435A CN201610839111.0A CN201610839111A CN106431435A CN 106431435 A CN106431435 A CN 106431435A CN 201610839111 A CN201610839111 A CN 201610839111A CN 106431435 A CN106431435 A CN 106431435A
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raw
forsterite
porous
composite diphase
magnesia
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CN201610839111.0A
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赵飞
叶国田
葛铁柱
刘新红
陈留刚
任桢
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Zhengzhou University
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Zhengzhou University
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/03Shaped 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
    • C04B35/04Shaped 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
    • C04B35/043Refractories from grain sized mixtures
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/06Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
    • C04B38/063Preparing or treating the raw materials individually or as batches
    • C04B38/0635Compounding ingredients
    • C04B38/0645Burnable, meltable, sublimable materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/06Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
    • C04B38/063Preparing or treating the raw materials individually or as batches
    • C04B38/0635Compounding ingredients
    • C04B38/0645Burnable, meltable, sublimable materials
    • C04B38/0665Waste material; Refuse other than vegetable refuse
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/444Halide containing anions, e.g. bromide, iodate, chlorite
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74Physical characteristics
    • C04B2235/77Density
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance

Abstract

The invention relates to a porous periclase-forsterite multiphase material and a preparation method thereof. The method comprises steps as follows: 48wt%-85wt% of a magnesium oxide raw material and 15wt%-52wt% of a silicon dioxide raw material are evenly mixed to form a mixed raw material, an additive accounting 3wt%-12wt% of the sum of mass percentages of raw materials is added, mixed mud is obtained after even stirring and poured in a mold to be mechanically pressed under 80-130 MPa, a blank is obtained, baked at 100-180 DEG C for 3-10 h and calcined at 1,500-1,750 DEG C for 1-16 h in a high-temperature furnace, and the porous periclase-forsterite multiphase material is prepared. A sintering in-situ pore forming technology is adopted, the production process is pollution-free, and the obtained product has the characteristics of high refractoriness under load, stable size, staggered pore structure, good thermal insulation effect and capability of being used at the high temperature of 1,500-1,700 DEG C for a long time.

Description

A kind of porous periclase-forsterite composite diphase material and preparation method thereof
Technical field
The invention belongs to technical field of inorganic nonmetallic materials, it is related to the preparation of novel porous pottery or porous refractory Method, concrete body is related to a kind of porous periclase-forsterite composite diphase material and preparation method thereof.
Background technology
Porous ceramic film material because have the excellent performances such as heat-insulated, filtration, sound-absorbing be widely used in metallurgy, environmental protection, The every field such as chemical industry.Periclase-forsterite composite diphase material has a higher use temperature, excellent effect of heat insulation, well The corrosion function of resist melt metal is a kind of porous ceramic film material with development prospect.
In recent years, the method preparing porous ceramic film material mainly has burnout substances to burn mistake method, foaming, carbonate decomposition in situ Method etc..Burnout substances burning mistake method is prepared porous ceramic film material and be increased shaping difficulty, increased CO simultaneously2Discharge, environment is made Become harm.Foaming prepares porous ceramic film material, and technique is relative complex, and end properties is not easily controlled, the resistance to pressure of product Degree is low.Carbonate decomposition in situ method is to be subject to thermal decomposition CO using carbonate mineral2The method of gas, forms gas in material internal Hole, such as:Hu Limin et al. prepares periclase-forsterite porous material with magnesite, konilite, fine silica powder for raw material (Hu Limin, Li Nan. Preparation of high strength lightweight forsterite refractories by in-situ decomposition [J]. refractory material. 2005,39 (4): 283~285), a kind of porous magnesium olivine material of the high intensity obtained by the method, but the method preparation process have substantial amounts of Gas is discharged from material internal, the emission path of wayward gas, and obtained stability of material is poor.
Content of the invention
The purpose of the present invention exactly provides a kind of porous side magnesium for the weak point in the presence of above-mentioned prior art Stone-forsterite composite diphase material and preparation method thereof.
The present invention is using the in-situ pore-formed technology of sintering it is therefore an objective to the porous periclase-forsterite with the method preparation is multiple Phase material has the characteristics that compressive resistance is high, bulk density is low, high using temperature.
The purpose of the present invention can be realized by following technique measures:
Porous periclase-forsterite the composite diphase material of the present invention includes the raw material of following weight percentage:The oxygen of 48~85wt% Change magnesia raw material, the siliceous raw material of 15~52wt%, and the interpolation of above-mentioned raw materials mass percent sum 3~12wt% Agent.
Heretofore described magnesia raw material take from light calcined magnesia, fused magnesite, magnesite clinker, seawater magnesia or The combination of one or more of brine magnesia, the weight percentage >=90.0wt% of MgO in raw material;Described silica Matter raw material takes from silicon dioxide gel, fine silica powder, natural silica, give up one or more of silica brick or vitreous silica Combination, SiO in raw material2Weight percentage >=93.0wt%;Described additive takes from starch, spent pulping liquor, poly- second two The combination of one or more of alcohol, dextrin, phenol-formaldehyde resin powder, magnesium chloride.
The preparation method is that to be realized by following step:
(1)Magnesia raw material and siliceous raw material are mixed prepared mixed material, outer doping stirring is all Even obtain mix pug;
(2)Above-mentioned mixing pug is poured in mould into mechanical pressing under 80~130MPa and obtains base substrate;
(3)After gained base substrate is toasted 3~10 hours at 100~180 DEG C, put in high temperature furnace in 1500~1750 DEG C of conditions Lower calcining 1~16 hour, that is, obtain porous periclase-forsterite composite diphase material.
The cold crushing strength of the porous periclase of gained of the present invention-forsterite composite diphase material product is 10~50MPa, Bulk density is 1.2~2.0g/cm3, apparent porosity is 25~60%, 0.2MPa loading softening started temperature >=1500 DEG C.
Beneficial effects of the present invention are as follows:
, using sintering in-situ pore-formed technology, production process is pollution-free, no substantial amounts of CO for the present invention2Gas discharges.The present invention is made Standby porous periclase-forsterite composite diphase material main thing phase composition is forsterite and periclase, and obtained product has Refractoriness under load point height, volume stability, air hole structure is had to be cross structure, good heat-insulation effect, can be at 1500~1700 DEG C The feature of Long-Time Service under hot conditions.
Brief description
Fig. 1 is porous side's magnesium-forsterite composite diphase material XRD diffracting spectrum.
Fig. 2 is porous side's magnesium-forsterite composite diphase material microstructure photograph.
Specific embodiment
The present invention is further described below with reference to embodiment:
Embodiment 1
By weight percentage the magnesia raw material of 55wt% and the siliceous raw material of 45wt% are mixed prepared mixing former Expect, then the spent pulping liquor of additional above-mentioned raw materials mass percent sum 4wt%, as additive, be uniformly mixing to obtain mixing pug, Pug is poured in mould into mechanical pressing under 100MPa and obtains base substrate, after base substrate is toasted 6 hours at 120 DEG C, put into height Calcine 3 hours under the conditions of 1650~1680 DEG C in warm stove, that is, obtain porous periclase-forsterite composite diphase material.
Magnesia raw material described in the present embodiment is magnesite clinker, the weight percentage of MgO in raw material >= 95.0wt%, particle diameter≤0.088mm;Described siliceous raw material is vitreous silica, SiO in raw material2Weight/mass percentage composition >= 99.0wt%, particle diameter:0.01~0.088mm.
The technical indicator of the porous periclase-forsterite composite diphase material prepared by the present embodiment is:Cold crushing strength For 18~20MPa, bulk density is 1.6~1.8g/cm3, apparent porosity is 43~50%, 0.2MPa loading softening started temperature For 1560~1580 DEG C.
Embodiment 2
By weight percentage the siliceous raw material of the magnesia raw material of 65wt% and 35wt% is mixed and mixing is obtained Raw material, then the dextrin of additional above-mentioned raw materials mass percent sum 6wt%, as additive, is uniformly mixing to obtain mixing pug, will Pug is poured in mould mechanical pressing under 110MPa into and is obtained base substrate, after base substrate is toasted 5 hours at 130 DEG C, puts into high temperature Calcine 3 hours under the conditions of 1600~1650 DEG C in stove, that is, obtain porous side's magnesium-forsterite composite diphase material.
Magnesia raw material described in the present embodiment is light calcined magnesia, the weight percentage of MgO in raw material >= 90.0wt%, particle diameter≤0.088mm;Described siliceous raw material is useless silica brick, SiO in raw material2Weight/mass percentage composition >= 94.0wt%, particle diameter:0.02~0.12mm.
The technical indicator of the porous periclase-forsterite composite diphase material prepared by the present embodiment is:Cold crushing strength For 22~25MPa, bulk density is 1.7~1.9g/cm3, apparent porosity is 35~40%, 0.2MPa loading softening started temperature For 1530~1550 DEG C.
Embodiment 3
By weight percentage the siliceous raw material of the magnesia raw material of 60wt% and 40wt% is mixed and mixing is obtained Raw material, the magnesium chloride of additional above-mentioned raw materials mass percent sum 4wt%, as additive, is uniformly mixing to obtain mixing pug, will Pug is poured in mould mechanical pressing under 120MPa into and is obtained base substrate, after base substrate is toasted 6 hours at 120 DEG C, puts into high temperature Calcine 5 hours under the conditions of 1700~1720 DEG C in stove, that is, obtain porous side's magnesium-forsterite composite diphase material.
Magnesia raw material described in the present embodiment is fused magnesite, the weight percentage of MgO in raw material >= 98.0wt%, particle diameter≤0.088mm;Described siliceous raw material is vitreous silica, SiO in raw material2Weight/mass percentage composition >= 99.0wt%, particle diameter:0.01~0.088mm.
The technical indicator of the porous periclase-forsterite composite diphase material prepared by the present embodiment is:Cold crushing strength For 20~28MPa, bulk density is 1.8~2.0g/cm3, and apparent porosity is 38~42%, 0.2MPa loading softening started temperature For 1600~1620 DEG C.

Claims (6)

1. a kind of porous periclase-forsterite composite diphase material it is characterised in that:Described periclase-forsterite composite diphase material Raw material including following weight percentage:The magnesia raw material of 48~85wt%, the siliceous raw material of 15~52wt%, with And the additive of above-mentioned raw materials mass percent sum 3~12wt%.
2. porous periclase-forsterite composite diphase material according to claim 1 it is characterised in that:Described magnesia The group of one or more of light calcined magnesia, fused magnesite, magnesite clinker, seawater magnesia or brine magnesia taken from by matter raw material Close, the weight percentage >=90.0wt% of MgO in raw material.
3. porous periclase-forsterite composite diphase material according to claim 1 it is characterised in that:Described titanium dioxide Siliceous raw material takes from silicon dioxide gel, fine silica powder, natural silica, useless one or more of silica brick or vitreous silica Combination, SiO in raw material2Weight percentage >=93.0wt%.
4. porous side according to claim 1 magnesium-forsterite composite diphase material it is characterised in that:Described additive takes Combination from one or more of starch, spent pulping liquor, polyethylene glycol, dextrin, phenol-formaldehyde resin powder or magnesium chloride.
5. a kind of method for preparing porous periclase-forsterite composite diphase material described in claim 1 it is characterised in that: Methods described to be realized by following step:
(1)Magnesia raw material and siliceous raw material are mixed prepared mixed material, outer doping stirring is all Even obtain mix pug;
(2)The mixing pug of gained is poured in mould into mechanical pressing under 80~130MPa and obtains base substrate;
(3)After the base substrate of gained is toasted 3~10 hours at 100~180 DEG C, put in high temperature furnace in 1500~1750 DEG C of bars Calcine 1~16 hour under part, that is, obtain porous periclase-forsterite composite diphase material.
6. method according to claim 5 it is characterised in that:Porous periclase-forsterite composite diphase material the system of gained The cold crushing strength of product is 10~50MPa, and bulk density is 1.2~2.0g/cm3, apparent porosity is 25~60%, 0.2MPa Loading softening started temperature >=1500 DEG C.
CN201610839111.0A 2016-09-22 2016-09-22 Porous periclase-forsterite multiphase material and preparation method thereof Pending CN106431435A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106946558A (en) * 2017-04-19 2017-07-14 郑州大学 A kind of forsterite periclase spinelle complex phase lightweight refracrory and preparation method thereof
CN107445632A (en) * 2017-07-28 2017-12-08 武汉科技大学 Lightweight periclase forsterite refractory and preparation method thereof
CN107445594A (en) * 2017-07-28 2017-12-08 武汉科技大学 Porous periclase forsterite ceramics material of nano aperture and preparation method thereof

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CN102285810A (en) * 2011-06-06 2011-12-21 浙江大学 Forsterite structure and thermal insulation integrated composite brick and preparation method thereof
CN103011870A (en) * 2013-01-17 2013-04-03 武汉科技大学 Forsterite refractory and production method thereof
CN103601516A (en) * 2013-11-18 2014-02-26 河南海格尔高温材料有限公司 Repairing material for steel ladle lining and preparation method of repair material

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CN101811880A (en) * 2010-04-20 2010-08-25 中民驰远实业有限公司 Carbon-free refractory bricks and preparation method thereof
CN102285810A (en) * 2011-06-06 2011-12-21 浙江大学 Forsterite structure and thermal insulation integrated composite brick and preparation method thereof
CN103011870A (en) * 2013-01-17 2013-04-03 武汉科技大学 Forsterite refractory and production method thereof
CN103601516A (en) * 2013-11-18 2014-02-26 河南海格尔高温材料有限公司 Repairing material for steel ladle lining and preparation method of repair material

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106946558A (en) * 2017-04-19 2017-07-14 郑州大学 A kind of forsterite periclase spinelle complex phase lightweight refracrory and preparation method thereof
CN106946558B (en) * 2017-04-19 2021-05-11 郑州大学 Forsterite-periclase-spinel complex phase light refractory material and preparation method thereof
CN107445632A (en) * 2017-07-28 2017-12-08 武汉科技大学 Lightweight periclase forsterite refractory and preparation method thereof
CN107445594A (en) * 2017-07-28 2017-12-08 武汉科技大学 Porous periclase forsterite ceramics material of nano aperture and preparation method thereof
CN107445594B (en) * 2017-07-28 2020-04-24 武汉科技大学 Nano-aperture porous periclase-forsterite ceramic material and preparation method thereof

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