CN110204323A - A kind of energy-saving cordierite zircon composite diphase material and preparation method thereof - Google Patents
A kind of energy-saving cordierite zircon composite diphase material and preparation method thereof Download PDFInfo
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- CN110204323A CN110204323A CN201910472477.2A CN201910472477A CN110204323A CN 110204323 A CN110204323 A CN 110204323A CN 201910472477 A CN201910472477 A CN 201910472477A CN 110204323 A CN110204323 A CN 110204323A
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Abstract
The present invention relates to a kind of energy-saving cordierite zircon composite diphase materials and preparation method thereof.Its technical solution is: first using the aluminum oxide fine powder of the zircon tailing of 40~60wt%, the talcum fine powder of 35~50wt% and 5~15wt% as raw material, water, the polyvinyl alcohol of 2~4wt% and the cerium oxide fine powder of 0.4~0.8wt% of the additional 40~50wt% of raw material, mixing, 6~8h of ball milling, obtains slurry；Again by the slurry mist projection granulating, graininess powder is obtained, then by the graininess powder mechanical pressing, 8~10h is kept the temperature under the conditions of 1350~1420 DEG C, natural cooling is to get energy-saving cordierite zircon composite diphase material.The present invention has the characteristics that production cost is low, environmentally protective and convenient for large-scale production；Not only intensity is high for prepared energy-saving cordierite zircon composite diphase material, energy-saving effect is significant and good thermal shock stability, and use scope is wide.
Description
Technical field
The invention belongs to cordierite zircon composite diphase material technical fields.It is multiple more particularly to a kind of energy-saving cordierite zircon
Phase material and preparation method thereof.
Background technique
Tailing is one of the product of separation operation in ore dressing, and wherein target components content is lower and be not used to produce.Thing
In reality, tailing is not waste material to no avail, often containing the component that can make other purposes.Realize the resource utilization of tailing
It is not only to improve the utilization efficiency of mineral resources, and the effective way preserved the ecological environment.Cordierite has extremely low heat swollen
Swollen coefficient, excellent pinking stability and good chemical stability, are widely used in the fields such as Hightemperature Kiln Furniture.
" a method of with synthesizing dichroite with solid castoff " (ZL200810239264.7) patented technology, though the technology
Carbon using gangue synthesis of dichroite, but in gangue aoxidizes and is formed a large amount of holes in high-temperature process, reduces the strong of product
It spends and causes green body interior temperature distribution uneven；" a kind of cordierite material and its manufacturing method using the preparation of rare earth tailings "
(ZL201210491530.1) patented technology, though cordierite is made with rare earth tailings in the technology, the radioactivity in rare earth tailings
Influence of the element to Field Force's safety is difficult to estimate." with the method for preparing cordierite ceramics by using serpentine tailings "
(ZL201210076854.9) patented technology, though the technology with kaolin be main Material synthesis cordierite, kaolin burn lose
The a large amount of holes formed influence the uniformity that Temperature Distribution in green body is had an effect on while densification." based on cyanite tailing
Mullite lightweight thermal insulation brick and preparation method thereof " (ZL201410132749.1) patented technology, though the technology is to contain zirconium oxide
Cyanite tailing be that mullite lightweight heat-proof product is made in main material, but when the introducing of a large amount of kyanite easily causes high-temperature process
The cracking of billet surface." alumina-silicate ceramic fibre and preparation method thereof based on cyanite tailing " (ZL201410547680.9)
Patented technology, though the technology is that aluminum silicate ceramic is made in raw material with cyanite tailing, carbonic acid compound rare-earth and vanadic anhydride etc.
Fiber, but energy consumption is high and easily causes environmental pollution." energy saving type lightweight cordierite-mullite kiln furniture materials, kiln furnitures and its preparation side
Method " (ZL201310106546.0) patented technology, though the decline that the technology is close by the unfounded existing product body of burning of wood powder, it is wooden
The discharge of the gases such as powder combustion process carbon dioxide is to environment nocuousness." one kind composite diphase material of cordierite containing zirconium and preparation method thereof "
(ZL201410522759.6) and " a kind of environment-friendly type dichroite-mullite kiln furnitures and preparation method thereof "
(CN201711437792.9) patented technology, though cordierite-zircon complex phase material is prepared respectively with discarded molding sand and waste old ceramics
Material and dichroite-mullite kiln furnitures, but the metal and metal oxide brought into casting process are attached to discarded molding sand, it is waste and old
Contain a large amount of potassium oxides in ceramics, the increase of liquid phase, reduces the content of cordierite crystalline phase, weaken simultaneously when leading to high-temperature process
High-temperature mechanical property.
Summary of the invention
The present invention is directed to overcome the defect of prior art, it is therefore an objective to it is low, environmentally protective and be convenient for provide a kind of production cost
The preparation method of the energy-saving cordierite zircon composite diphase material of large-scale production.The energy-saving cordierite prepared by this method
Not only intensity is high for zircon composite diphase material, energy-saving effect is significant and good thermal shock stability, and use scope is wide.
To achieve the above object, the technical scheme adopted by the invention is that:
It is first thin with the aluminium oxide of the zircon tailing of 40~60wt%, the talcum fine powder of 35~50wt% and 5~15wt%
Powder is raw material, water, the polyvinyl alcohol of 2~4wt% and the cerium oxide of 0.4~0.8wt% of the additional 40~50wt% of raw material
Fine powder, mixing, 6~8h of ball milling obtain slurry；Again by the slurry mist projection granulating, graininess powder is obtained；It then will be described
Granular powder mechanical pressing keeps the temperature 8~10h under the conditions of 1350~1420 DEG C, and natural cooling is to get energy-saving cordierite zirconium English
Stone composite diphase material.
The zircon tailing: Al2O3Content is 38~58wt%, SiO2Content is 32~52wt%, ZrO2Content >=
7.5wt%；Partial size≤0.5mm of the zircon tailing.
Content of MgO >=30wt% of the talcum fine powder；Partial size≤0.089mm of talcum fine powder.
The Al of the aluminum oxide fine powder2O3Content >=98wt%；Partial size≤0.089mm of aluminum oxide fine powder.
The CeO of the cerium oxide fine powder2Content >=99wt%；Partial size≤0.02mm of cerium oxide fine powder.
The pressure of the mechanical pressing is 50~60MPa.
Due to the adoption of the above technical scheme, the present invention has following good effect compared with prior art:
The present invention prepares energy-saving cordierite zircon composite diphase material using zircon tailing as primary raw material, not only reduces
Production cost, while the utilization to high added value mineral in zircon tailing is also achieved, do not only reach solid waste money
The purpose that source utilizes, and reduce the pollution of solid waste, it is environmentally protective.
The present invention decomposes caused volume expansion using the kyanite in zircon tailing, improves energy-saving cordierite
The porosity of zircon composite diphase material, reduces bulk density, reduces accumulation of heat, and energy-saving effect is significant.In zircon tailing
Zircon can also expand the firing range of cordierite, improve the intensity of product, and the zirconium ion diffused in matrix can then press down
Fixture has the precipitation of the cristobalite phase of strong bulk effect, improves thermal shock resistance.
The cerium oxide that the present invention is added promotes the formation of cordierite, the oxygen decomposited can impurity in oxidation material at
Divide ferrous oxide, plays decolorization, and improve the liquid in energy-saving cordierite zircon composite diphase material applied at elevated temperature
Phase composition improves the elevated temperature strength of product.
Energy-saving cordierite zircon composite diphase material is through X-ray diffraction analysis prepared by the present invention: principal crystalline phase is that violet is green
Stone, secondary crystal phase are zircon.Prepared energy-saving cordierite zircon composite diphase material is through detecting: bulk density is lower than 2.1g/
cm3；Apparent porosity is higher than 25%；Compressive resistance is 190~230MPa.
Therefore, the present invention has the characteristics that production cost is low, environmentally protective and convenient for large-scale production；Prepared energy conservation
Not only intensity is high for type cordierite zircon composite diphase material, energy-saving effect is significant and good thermal shock stability, and use scope is wide.
Specific embodiment
The present invention will be further described With reference to embodiment, not to the limit of the scope of the present invention
System:
To avoid repeating.The technical parameter Unify legislation that first present embodiment to be related to is as follows, in embodiment
It will not be described in great detail:
The zircon tailing: Al2O3Content is 38~58wt%, SiO2Content is 32~52wt%, ZrO2Content >=
7.5wt%；Partial size≤0.5mm of the zircon tailing.
Content of MgO >=30wt% of the talcum fine powder；Partial size≤0.089mm of talcum fine powder.
The Al of the aluminum oxide fine powder2O3Content >=98wt%；Partial size≤0.089mm of aluminum oxide fine powder.
The CeO of the cerium oxide fine powder2Content >=99wt%；Partial size≤0.02mm of cerium oxide fine powder.
The pressure of the mechanical pressing is 50~60MPa.
Embodiment 1
A kind of energy-saving cordierite zircon composite diphase material and preparation method thereof.Preparation method described in the present embodiment is:
It is first thin with the aluminium oxide of the zircon tailing of 40~45wt%, the talcum fine powder of 41~45wt% and 13~15wt%
Powder is raw material, then the additional 40~43wt% of raw material water, the polyvinyl alcohol and 0.4~0.6wt% of 2~3wt% oxidation
Cerium fine powder, mixing, 6~8h of ball milling obtain slurry；Again by the slurry mist projection granulating, graininess powder is obtained；Then by particle
Shape powder mechanical pressing keeps the temperature 8~10h under the conditions of 1350~1370 DEG C, and natural cooling is to get energy-saving cordierite zircon
Composite diphase material.
Energy-saving cordierite zircon composite diphase material is through X-ray diffraction analysis prepared by the present embodiment: principal crystalline phase is violet
Green stone, secondary crystal phase are zircon.Prepared energy-saving cordierite zircon composite diphase material is through detecting: bulk density is lower than
1.9g/cm3；Apparent porosity is higher than 28%；Compressive resistance is 190~200MPa.
Embodiment 2
A kind of energy-saving cordierite zircon composite diphase material and preparation method thereof.Preparation method described in the present embodiment is:
It is first thin with the aluminium oxide of the zircon tailing of 45~50wt%, the talcum fine powder of 39~43wt% and 11~13wt%
Powder is raw material, then the additional 43~46wt% of raw material water, the polyvinyl alcohol and 0.4~0.6wt% of 3~4wt% oxidation
Cerium fine powder, mixing, 6~8h of ball milling obtain slurry；Again by the slurry mist projection granulating, graininess powder is obtained；Then by particle
Shape powder mechanical pressing keeps the temperature 8~10h under the conditions of 1360~1380 DEG C, and natural cooling is to get energy-saving cordierite zircon
Composite diphase material.
Energy-saving cordierite zircon composite diphase material is through X-ray diffraction analysis prepared by the present embodiment: principal crystalline phase is violet
Green stone, secondary crystal phase are zircon.Prepared energy-saving cordierite zircon composite diphase material is through detecting: bulk density is lower than
1.9g/cm3；Apparent porosity is higher than 27%；Compressive resistance is 195~205MPa.
Embodiment 3
A kind of energy-saving cordierite zircon composite diphase material and preparation method thereof.Preparation method described in the present embodiment is:
It is first thin with the aluminium oxide of the zircon tailing of 50~55wt%, the talcum fine powder of 36~40wt% and 9~11wt%
Powder is raw material, then the additional 46~49wt% of raw material water, the polyvinyl alcohol and 0.6~0.8wt% of 2~3wt% oxidation
Cerium fine powder, mixing, 6~8h of ball milling obtain slurry；Again by the slurry mist projection granulating, graininess powder is obtained；Then by particle
Shape powder mechanical pressing keeps the temperature 8~10h under the conditions of 1370~1390 DEG C, and natural cooling is to get energy-saving cordierite zircon
Composite diphase material.
Energy-saving cordierite zircon composite diphase material is through X-ray diffraction analysis prepared by the present embodiment: principal crystalline phase is violet
Green stone, secondary crystal phase are zircon.Prepared energy-saving cordierite zircon composite diphase material is through detecting: bulk density is lower than
2.0g/cm3；Apparent porosity is higher than 26%；Compressive resistance is 200~210MPa.
Embodiment 4
A kind of energy-saving cordierite zircon composite diphase material and preparation method thereof.Preparation method described in the present embodiment is:
First with the zircon tailing, the talcum fine powder of 35~39wt% and the aluminum oxide fine powder of 5~7wt% of 55~60wt%
For raw material, then water, the polyvinyl alcohol of 3~4wt% and the cerium oxide of 0.6~0.8wt% of the additional 47~50wt% of raw material
Fine powder, mixing, 6~8h of ball milling obtain slurry；Again by the slurry mist projection granulating, graininess powder is obtained；Then by graininess
Powder mechanical pressing, keeps the temperature 8~10h under the conditions of 1380~1400 DEG C, and natural cooling is multiple to get energy-saving cordierite zircon
Phase material.
Energy-saving cordierite zircon composite diphase material is through X-ray diffraction analysis prepared by the present embodiment: principal crystalline phase is violet
Green stone, secondary crystal phase are zircon.Prepared energy-saving cordierite zircon composite diphase material is through detecting: bulk density is lower than
2.0g/cm3；Apparent porosity is higher than 25%；Compressive resistance is 205~215MPa.
Embodiment 5
A kind of energy-saving cordierite zircon composite diphase material and preparation method thereof.Preparation method described in the present embodiment is:
First with the zircon tailing, the talcum fine powder of 43~47wt% and the aluminum oxide fine powder of 7~9wt% of 45~50wt%
For raw material, then water, the polyvinyl alcohol of 2~3wt% and the cerium oxide of 0.5~0.7wt% of the additional 41~44wt% of raw material
Fine powder, mixing, 6~8h of ball milling obtain slurry；Again by the slurry mist projection granulating, graininess powder is obtained；Then by graininess
Powder mechanical pressing, keeps the temperature 8~10h under the conditions of 1390~1410 DEG C, and natural cooling is multiple to get energy-saving cordierite zircon
Phase material.
Energy-saving cordierite zircon composite diphase material is through X-ray diffraction analysis prepared by the present embodiment: principal crystalline phase is violet
Green stone, secondary crystal phase are zircon.Prepared energy-saving cordierite zircon composite diphase material is through detecting: bulk density is lower than
2.1g/cm3；Apparent porosity is higher than 25%；Compressive resistance is 210~220MPa.
Embodiment 6
A kind of energy-saving cordierite zircon composite diphase material and preparation method thereof.Preparation method described in the present embodiment is:
First with the zircon tailing, the talcum fine powder of 46~50wt% and the aluminum oxide fine powder of 5~7wt% of 43~48wt%
For raw material, then water, the polyvinyl alcohol of 3~4wt% and the cerium oxide of 0.5~0.7wt% of the additional 44~47wt% of raw material
Fine powder, mixing, 6~8h of ball milling obtain slurry；Again by the slurry mist projection granulating, graininess powder is obtained；Then by graininess
Powder mechanical pressing, keeps the temperature 8~10h under the conditions of 1400~1420 DEG C, and natural cooling is multiple to get energy-saving cordierite zircon
Phase material.
Energy-saving cordierite zircon composite diphase material is through X-ray diffraction analysis prepared by the present embodiment: principal crystalline phase is violet
Green stone, secondary crystal phase are zircon.Prepared energy-saving cordierite zircon composite diphase material is through detecting: bulk density is lower than
2.1g/cm3；Apparent porosity is higher than 25%；Compressive resistance is 220~230MPa.
Embodiment 7
A kind of energy-saving cordierite zircon composite diphase material and preparation method thereof.Preparation method described in the present embodiment is:
First with the zircon tailing, the talcum fine powder of 42~46wt% and the aluminum oxide fine powder of 7~9wt% of 46~51wt%
For raw material, then water, the polyvinyl alcohol of 2~3wt% and the cerium oxide of 0.6~0.8wt% of the additional 47~50wt% of raw material
Fine powder, mixing, 6~8h of ball milling obtain slurry；Again by the slurry mist projection granulating, graininess powder is obtained；Then by graininess
Powder mechanical pressing, keeps the temperature 8~10h under the conditions of 1380~1400 DEG C, and natural cooling is multiple to get energy-saving cordierite zircon
Phase material.
Energy-saving cordierite zircon composite diphase material is through X-ray diffraction analysis prepared by the present embodiment: principal crystalline phase is violet
Green stone, secondary crystal phase are zircon.Prepared energy-saving cordierite zircon composite diphase material is through detecting: bulk density is lower than
2.0g/cm3, for apparent porosity higher than 26%, compressive resistance is 210~220MPa.
Embodiment 8
A kind of energy-saving cordierite zircon composite diphase material and preparation method thereof.Preparation method described in the present embodiment is:
It is first thin with the aluminium oxide of the zircon tailing of 52~57wt%, the talcum fine powder of 34~38wt% and 9~11wt%
Powder is raw material, then the additional 42~45wt% of raw material water, the polyvinyl alcohol and 0.6~0.8wt% of 3~4wt% oxidation
Cerium fine powder, mixing, 6~8h of ball milling obtain slurry；Again by the slurry mist projection granulating, graininess powder is obtained；Then by particle
Shape powder mechanical pressing keeps the temperature 8~10h under the conditions of 1380~1400 DEG C, and natural cooling is to get energy-saving cordierite zircon
Composite diphase material.
Energy-saving cordierite zircon composite diphase material is through X-ray diffraction analysis prepared by the present embodiment: principal crystalline phase is violet
Green stone, secondary crystal phase are zircon.Prepared energy-saving cordierite zircon composite diphase material is through detecting: bulk density is lower than
2.0g/cm3；Apparent porosity is higher than 26%；Compressive resistance is 215~225MPa.
Present embodiment has following good effect compared with prior art:
Present embodiment prepares energy-saving cordierite zircon composite diphase material using zircon tailing as primary raw material,
Production cost is not only reduced, while also achieving the utilization to high added value mineral in zircon tailing, has not been only reached solid
The purpose that body waste resource utilizes, and reduce the pollution of solid waste, it is environmentally protective.
Present embodiment decomposes caused volume expansion using the kyanite in zircon tailing, improves energy conservation
The porosity of type cordierite zircon composite diphase material, reduces bulk density, reduces accumulation of heat, energy-saving effect is significant.Zircon
Zircon in tailing can also expand the firing range of cordierite, improve the intensity of product, and diffuse to the zirconium ion in matrix
It is then able to suppress the precipitation of the cristobalite phase with strong bulk effect, improves thermal shock resistance.
The cerium oxide that present embodiment is added promotes the formation of cordierite, and the oxygen decomposited can be in oxidation material
Impurity component ferrous oxide, play decolorization, and improve energy-saving cordierite zircon composite diphase material high temperature to make
Liquid phase composition in, improves the elevated temperature strength of product.
Energy-saving cordierite zircon composite diphase material is through X-ray diffraction analysis prepared by present embodiment: oikocryst
It is mutually cordierite, secondary crystal phase is zircon.Prepared energy-saving cordierite zircon composite diphase material is through detecting: bulk density is low
In 2.1g/cm3；Apparent porosity is higher than 25%；Compressive resistance is 190~230MPa.
Therefore, present embodiment has the characteristics that production cost is low, environmentally protective and convenient for large-scale production；It is made
Not only intensity is high for standby energy-saving cordierite zircon composite diphase material, energy-saving effect is significant and good thermal shock stability, and uses model
It encloses wide.
Claims (7)
1. a kind of preparation method of energy-saving cordierite zircon composite diphase material, it is characterised in that the preparation method is:
First it is with the aluminum oxide fine powder of the zircon tailing of 40~60wt%, the talcum fine powder of 35~50wt% and 5~15wt%
Raw material, water, the polyvinyl alcohol of 2~4wt% and the cerium oxide fine powder of 0.4~0.8wt% of the additional 40~50wt% of raw material,
Mixing, 6~8h of ball milling obtain slurry；Again by the slurry mist projection granulating, graininess powder is obtained, then by the graininess
Powder mechanical pressing, keeps the temperature 8~10h under the conditions of 1350~1420 DEG C, and natural cooling is multiple to get energy-saving cordierite zircon
Phase material.
2. the preparation method of energy-saving cordierite zircon composite diphase material according to claim 1, it is characterised in that described
Zircon tailing: Al2O3Content is 38~58wt%, SiO2Content is 32~52wt%, ZrO2Content >=7.5wt%；The zirconium
Partial size≤0.5mm of diamond stone tailing.
3. the preparation method of energy-saving cordierite zircon composite diphase material according to claim 1, it is characterised in that described
Content of MgO >=30wt% of talcum fine powder；Partial size≤0.089mm of talcum fine powder.
4. the preparation method of energy-saving cordierite zircon composite diphase material according to claim 1, it is characterised in that described
The Al of aluminum oxide fine powder2O3Content >=98wt%；Partial size≤0.089mm of aluminum oxide fine powder.
5. the preparation method of energy-saving cordierite zircon composite diphase material according to claim 1, it is characterised in that described
The CeO of cerium oxide fine powder2Content >=99wt%；Partial size≤0.02mm of cerium oxide fine powder.
6. the preparation method of energy-saving cordierite zircon composite diphase material according to claim 1, it is characterised in that described
The pressure of mechanical pressing is 50~60MPa.
7. a kind of energy-saving cordierite zircon composite diphase material, it is characterised in that the energy-saving cordierite zircon composite diphase material
Be any one of according to claim 1~6 described in energy-saving cordierite zircon composite diphase material preparation method prepared by
Energy-saving cordierite zircon composite diphase material.
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