CN102731138A - Fly ash based high-strength and high-porosity foamed ceramic and preparation method thereof - Google Patents

Fly ash based high-strength and high-porosity foamed ceramic and preparation method thereof Download PDF

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Publication number
CN102731138A
CN102731138A CN201210246475XA CN201210246475A CN102731138A CN 102731138 A CN102731138 A CN 102731138A CN 201210246475X A CN201210246475X A CN 201210246475XA CN 201210246475 A CN201210246475 A CN 201210246475A CN 102731138 A CN102731138 A CN 102731138A
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China
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fly ash
foamed ceramics
red mud
foamed ceramic
sintering
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Inventor
卢安贤
陈兴军
肖重德
刘宏伟
刘清
陈波
罗志伟
胡晓林
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Hunan Yitai Environmental Protection Science & Technology Co Ltd
Central South University
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Hunan Yitai Environmental Protection Science & Technology Co Ltd
Central South University
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Priority to CN201210246475XA priority Critical patent/CN102731138A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/60Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

Abstract

The invention discloses a fly ash based high-strength and high-porosity foamed ceramic and a preparation method thereof. The method comprises the following steps of: after enabling red mud and fly ash to pass through a 300-mesh sieve, mixing and grinding the obtained product with calcium carbonate, sodium tetraborate and a polyvinyl alcohol adhesive so as to obtain a batch mixture, and pressing the batch mixture into a blocky green body; putting the blocky green body subjected to molding into a sintering furnace to carry out sintering, so that uniformly-distributed pores are formed in the sintering process; and cooling the obtained blocky green body to room temperature so as to obtain an industrial-waste-residue-based high-strength and high-porosity foamed ceramic. Due to the existence of a plurality of pores in the foamed ceramic, the foamed ceramic has good thermal insulation (in summer), heat preservation (in winter) and sound insulation functions, and due to the chemical combination in the process of high-temperature sintering, the foamed ceramic is high in strength and provided with high temperature resistant performance. The foamed ceramic is simple in preparation process, low in sintering temperature and low in production cost, the total applied amount of fly ash and red mud is 70 wt % or above, so that industrial waste residues such as fly ash and red mud can be consumed, therefore, the foamed ceramic can be widely applied to roofs (for thermal insulation and heat preservation) of buildings, indoor nonbearing walls (for thermal insulation, heat preservation and sound insulation) and indoor/outdoor walls (for thermal insulation and heat preservation), and in the process of application, no new industrial waste residue is produced, and therefore the foamed ceramic is an environmental-friendly multifunctional building material.

Description

A kind of fly ash base HS high porosity foamed ceramics and preparation method
Technical field
The present invention relates to a kind of fly ash base HS high porosity foamed ceramics and preparation method, belong to and resource (soil, mineral products), environmental protection (venomous injurant discharging), the energy (building energy-saving consumption reduction) and the multidisciplinary interleaving techniques of novel material field.
Technical background
The solid waste that flyash is discharged as the coal-burning power plant, its pollution to environment is many-sided.In the disposal of flyash and the processing and utilization process, wherein the harmful element of enrichment can be invaded environment through variety of way, harm biology and HUMAN HEALTH.Be stored in the flyash of ash field; Moisture is in case evaporation, runs into the above wind-force of level Four and just can the top layer soot particle be peeled off and sublate, and the dust height can reach 40-50m; Not only influence visibility meter, and in wet environment, can cause corrosion surfaces such as buildings, open-air sculptures.Flyash mainly is that power plant is directly to the waters ash discharge to the pollution of water body.Flyash gets into water body, forms material such as throw out, suspended substance, solvend and water turbidity is increased, and worsens water quality.Flyash is stored in a large number to be stacked, not only occupy cultivated land, and contaminate environment, and the health of harmful to human and ecotope, the therefore comprehensive utilization of research and attention fly ash is very necessary to making up resource-conserving and environment-friendly society.It is thus clear that the comprehensive utilization of carrying out flyash has important environment protection value and economic benefit.
Red mud is that bauxite refines the solid waste that produces in the alumina process, is a kind of insoluble sludge.Different according to metallurgy method for aluminum, red mud can be divided into sintering process, Bayer process and integrated process red mud.The staple of red mud has SiO 2, CaO, Al 2O 3Deng.Contain a large amount of strong alkaline substances in the general red mud particle, also contain fluorine, aluminium and other multiple harmful substances.China is sintering process and integrated process from the main method that bauxite refines aluminum oxide, and the composition of the red mud that these two kinds of technologies produce is comparatively similar, mainly contains Dicalcium Phosphate (Feed Grade) and hydrate thereof.Then mostly abroad is Bayer process red mud, wherein mainly contains rhombohedral iron ore, sodium aluminium silicate hydrate.Up to the present; Most of red mud is underutilized and disposes, and is stored up for a long time in the red mud pond, not only takies a large amount of soils; Expending more stockyard builds and the maintenance management expense; And alkali waste polluted surface, underground water source, cause the natural ecological environment havoc, directly endanger people's health.The comprehensive regulation and utilize red mud has become problem that needs to be resolved hurrily of aluminum oxide industry.Along with the reinforcement of environmental protection consciousness, the red mud utilization has caused generally attention both domestic and external.At present, more effective red mud treatment technology and method all actively seeking countermeasure, are made every effort to obtain by the many countries in the whole world.Utilizing the red mud preparation to produce type material---red-mud coal ash base foamed ceramics, can improve the utilization ratio of red mud to a great extent, is the new way of a solution red mud resource utilization issue that is expected.
" Chinese comprehensive utilization of resources technical policy outline " will improve the changing rejected material to useful resource level and advance the field as the emphasis of comprehensive utilization of resources during " 12 ", and emphasis is big in quantity discharged, volume of cargo in storage is big, the large utilization of with serious pollution solid waste and high value added utilization.Building materials industry is large optimal selection that utilizes industrial residue.At present domestic existing patent for the red-mud coal ash comprehensive utilization; Chinese patent (application number: 200610128450.4) " red-mud coal ash baking-free brick "; Chinese patent (application number: 200910092222.X) " a kind of burning-free geology polymer material of red mud coal ash and preparation method thereof ", in these two patents, all used industrial solid waste residue red mud and flyash as raw material; But its industrial residue total addition level is limited, is not enough to consume on a large scale waste residue.And still do not fully utilize the patent that red-mud coal ash is the feedstock production foamed ceramics both at home and abroad at present, this patent is just remedying this deficiency.
Summary of the invention
The object of the present invention is to provide a kind of fly ash base HS high porosity foamed ceramics and preparation method; With mass consumption industrial solid waste residue (mainly being flyash and red mud); Simultaneously can develop the void content height again; Ultimate compression strength, bending strength are good; High added value foamed ceramics product with excellent mechanical property, thus make the utilization of collection reasonable resources, turn waste into wealth, practice thrift the soil, reduce enterprise's waste residue maintenance cost, reduce the pollution of venomous injurant confrontation environment in the waste residue and realize that saving energy and reduce the cost of buildings becomes possibility for one.
A kind of fly ash base HS high porosity foamed ceramics comprises following component, forms by mass percentage:
Flyash 20-40wt%,
Red mud 30-50wt%,
Lime carbonate 10-25wt%,
Borax 5-20wt%.
The preparation method of a kind of fly ash base HS of the present invention high porosity foamed ceramics comprises the following steps:
The first step: batching, base
By the foamed ceramics component proportioning of design, got the pure level of red mud, powdered coal ash and chemical analysis lime carbonate, the borax raw material of 300 mesh sieves, mix, process compound; In compound, add the caking agent that accounts for mixture quality 1-10wt%, be pressed into block blank after stirring;
Second step: fire
The block blank that the first step is made is heated to 800 ℃-950 ℃ and carries out sintering with 3 ℃/min-5 ℃/temperature rise rate of min, behind the insulation 0.5-3h; Furnace cooling promptly makes fly ash base HS high porosity foamed ceramics to room temperature.
The preparation method of a kind of fly ash base HS of the present invention high porosity foamed ceramics, said caking agent is a Z 150PH.
The preparation method of a kind of fly ash base HS of the present invention high porosity foamed ceramics, pressing pressure is 20MPa~25MPa.
The preparation method of a kind of fly ash base HS of the present invention high porosity foamed ceramics, said sintering adopts chamber type electric resistance furnace or ceramic post sintering stove.
The preparation method of a kind of fly ash base HS of the present invention high porosity foamed ceramics, the foamed ceramics void content of preparation can be up to 69%, and bending strength reaches can be up to 8.05MPa, and ultimate compression strength can be up to 11.04MPa.
The present invention is owing to adopt said components proportioning and preparation technology's method, and divided calcium carbonate is separated and discharged dioxide gas in the sample sintering process, and a large amount of gas forms pore in matrix.Generate mineral such as bigger calcium iron ore of hardness and hauyne in the sample sintering process, though its intensity receives the influence of pore bigger, bending strength still can reach 8.05MPa, and ultimate compression strength can be up to 11.04MPa.Porousness makes material possess certain heat insulation, sound insulation, sound insulation property.
Compared with present technology, characteristics of the present invention are:
1) staple is SiO in the flyash 2And Al 2O 3, staple is CaO in the red mud, belongs to a kind of rich quicklime slag, two kinds of slags are just in time complementary on composition, form CaO-Al 2O 3-SiO 2System's pottery.The former gives HS, the high chemical stability of sintered article, and the latter gives sintered article low relatively firing temperature.
2) consumption of flyash and red mud industrial residue reaches 70wt% in the foamed ceramics, and the waste residue consumption is big, and great environmental benefit is arranged.
3) contain a large amount of pores in the foamed ceramics, thereby give its good heat insulation (summer), insulation (winter) and sound insulation function.
4) foamed ceramics has passed through high temperature sintering, produces Chemical bond between composition, makes this foamed ceramics that high intensity and resistance to elevated temperatures arranged; Simultaneously, make this foamed ceramics that high chemicalstability in use arranged, can not produce new secondary pollution.
5) a kind of industrial residue based HS that the present invention relates to, high porosity foamed ceramics, required preparation condition is simple and easy to operate, and cost is low, mainly is that flyash, the red mud of throwing aside with factory is raw material, prepared foam ceramic material high comprehensive performance; Both but mass consumption industrial solid waste residue can obtain high added value, multi-functional goods again.
In sum, the present invention proposes the new way of a kind of flyash, red mud comprehensive utilization, flyash, red mud class waste residue introducing amount have reached 70wt% or more than the 70wt%, but both mass consumption industrial solid waste residues can be realized the energy-saving and cost-reducing of buildings again.For the reasonable resources utilization, turn waste into wealth, practice thrift the soil, reduce enterprise's waste residue maintenance cost, reduce the pollution of venomous injurant confrontation environment in the waste residue, all have very important social effect and economic benefit.Be suitable for industrial applications.
Description of drawings:
Accompanying drawing 1 is the SEM photo of the foamed ceramics of the embodiment of the invention 1 preparation.
Accompanying drawing 2 is the SEM photo of the foamed ceramics of the embodiment of the invention 2 preparations.
Accompanying drawing 3 is the SEM photo of the foamed ceramics of the embodiment of the invention 3 preparations.
Accompanying drawing 4 is the XRD figure spectrum of the foamed ceramics of the embodiment of the invention 1,2,3 preparations.
Accompanying drawing 5 is the SEM photo of the foamed ceramics of the embodiment of the invention 4 preparations.
Accompanying drawing 6 is the SEM photo of the foamed ceramics of the embodiment of the invention 5 preparations.
Accompanying drawing 7 is the SEM photo of the foamed ceramics of the embodiment of the invention 6 preparations.
Accompanying drawing 8 is the SEM photo of the foamed ceramics of the embodiment of the invention 7 preparations.
Accompanying drawing 9 is the SEM photo of the foamed ceramics of the embodiment of the invention 8 preparations.
Accompanying drawing 10 is the SEM photo of the foamed ceramics of the embodiment of the invention 9 preparations.
By Fig. 1,2,3 visible, the relative content of flyash, red mud is very big to the influence of product void content in the foamed ceramics that the present invention makes, and at red mud 20wt%, during flyash 50wt%, pore is bigger; At red mud 30wt%, during flyash 40wt%, gas cell distribution is more even, and hole diameter is all less, and void content is higher; At red mud 40wt%, during flyash 30wt%, the product hole diameter that obtains is little, and void content is relatively low.
Visible by Fig. 4, the foamed ceramics principal crystalline phase that the present invention makes mainly is andradite (Ca 3Fe 2(SiO 4) 3) and hauyne (K 1.6Ca 2.4Na 4.32(AlSiO 4) 6 (SO 4) 3), at red mud 20wt%, among the flyash 50wt%, lime feldspar (CaAl appears 2Si 2O 8); As red mud 30wt%, during flyash 40wt%, mainly be two kinds of crystalline phases of andradite and hauyne; At red mud 40wt%, during flyash 30wt%, principal crystalline phase remains andradite and hauyne, but has nepheline to occur mutually.
By Fig. 5,6,7 visible, the foamed ceramics that makes among the present invention, at red mud 30wt%, during flyash 40wt%, soaking time is very big to the size and the distribution influence of pore.When soaking time 0.5h, hole diameter is less relatively; When soaking time 1h, hole diameter is big, distribution is also more even; When soaking time 3h, hole diameter is relatively large.
By Fig. 8,9,10 visible; The relative content of borax, lime carbonate is very big to sample effects in the foamed ceramics that makes among the present invention, and is lower at borax content, (Fig. 8 when calcium carbonate content is higher; A7); Sample is difficult for softening, and the gas that is solved by divided calcium carbonate is difficult for overflowing, and forms the less relatively pore in some apertures in inside.Higher at borax content, and when calcium carbonate content is low (Figure 10, A9), the softening temperature of sample obviously reduces, and gas is prone to overflow base substrate, and forms the relatively large pore in aperture in inside.
Embodiment
Below in conjunction with embodiment the present invention is described further, but should limit protection scope of the present invention with this.
Embodiment 1 (numbering A1): proportioning raw materials (mass ratio) be red mud 20wt%, flyash 50wt%, and borax 15wt%, lime carbonate 15wt%, 3 ℃ of temperature rise rates/min-5 ℃/min, 800 ℃ of sintering temperatures are incubated 2h.Through its void content 59% of test detected result, ultimate compression strength 12.09MPa, bending strength 3.08MPa.
Embodiment 2 (numbering A2): proportioning raw materials (mass ratio) be red mud 30wt%, flyash 40wt%, and borax 15wt%, lime carbonate 15wt%, 3 ℃ of temperature rise rates/min-5 ℃/min, 800 ℃ of sintering temperatures are incubated 2h.Through its void content 64% of test detected result, ultimate compression strength 13.21MPa, bending strength 7.05MPa.
Embodiment 3 (numbering A3): proportioning raw materials (mass ratio) be red mud 40wt%, flyash 30wt%, and borax 15wt%, lime carbonate 15wt%, 3 ℃ of temperature rise rates/min-5 ℃/min, 800 ℃ of sintering temperatures are incubated 2h.Through its void content 59% of test detected result, ultimate compression strength 16.01MPa, bending strength 8.04MPa.
Embodiment 4 (numbering A4): proportioning raw materials (mass ratio) be red mud 30wt%, flyash 40wt%, and borax 15wt%, lime carbonate 15wt%, 3 ℃ of temperature rise rates/min-5 ℃/min, 900 ℃ of sintering temperatures are incubated 0.5h.Through its void content 57% of test detected result, ultimate compression strength 13.5MPa, bending strength 11.09MPa.
Embodiment 5 (numbering A5): proportioning raw materials (mass ratio) be red mud 30wt%, flyash 40wt%, and borax 15wt%, lime carbonate 15wt%, 3 ℃ of temperature rise rates/min-5 ℃/min, 900 ℃ of sintering temperatures are incubated 1h.Through its void content 69% of test detected result, ultimate compression strength 11.04MPa, bending strength 8.05MPa.
Embodiment 6 (numbering A6): proportioning raw materials (mass ratio) be red mud 30wt%, flyash 40wt%, and borax 15wt%, lime carbonate 15wt%, 3 ℃ of temperature rise rates/min-5 ℃/min, 900 ℃ of sintering temperatures are incubated 3h.Through its void content 59% of test detected result, ultimate compression strength 13.45MPa, bending strength 9.20MPa.
Embodiment 7 (numbering A7): proportioning raw materials (mass ratio) be red mud 25wt%, flyash 45wt%, and borax 8wt%, lime carbonate 22wt%, 3 ℃ of temperature rise rates/min-5 ℃/min, 950 ℃ of sintering temperatures are incubated 1h.Through its void content 52% of test detected result, ultimate compression strength 13.5MPa, bending strength 10.42MPa.
Embodiment 8 (numbering A8): proportioning raw materials (mass ratio) be red mud 25wt%, flyash 45wt%, and borax 13wt%, lime carbonate 17wt%, 3 ℃ of temperature rise rates/min-5 ℃/min, 950 ℃ of sintering temperatures are incubated 1h.Through its void content 57% of test detected result, ultimate compression strength 12.86MPa, bending strength 8.24MPa.
Embodiment 9 (numbering A9): proportioning raw materials (mass ratio) be red mud 25wt%, flyash 45wt%, and borax 18wt%, lime carbonate 12wt%, 3 ℃ of temperature rise rates/min-5 ℃/min, 950 ℃ of sintering temperatures are incubated 1h.Through its void content 60% of test detected result, ultimate compression strength 12.41MPa, bending strength 6.4MPa.
Know by above, the HS high porosity foamed ceramics of the present invention's preparation, its void content about 60%, ultimate compression strength reaches more than the 10MPa, and bending strength also all reaches more than the 8MPa basically, has excellent mechanical property.

Claims (6)

1. a fly ash base HS high porosity foamed ceramics comprises following component, forms by mass percentage:
Flyash 20-40wt%,
Red mud 30-50wt%,
Lime carbonate 10-25wt%,
Borax 5-20wt%.
2. the preparation method of a fly ash base HS high porosity foamed ceramics comprises the following steps:
The first step: batching, base
By the foamed ceramics component proportioning of design, got the pure level of red mud, powdered coal ash and chemical analysis lime carbonate, the borax raw material of 300 mesh sieves, mix, process compound; In compound, add the caking agent that accounts for mixture quality 1-10wt%, be pressed into block blank after stirring;
Second step: fire
The block blank that the first step is made is heated to 800 ℃-950 ℃ and carries out sintering with 3 ℃/min-5 ℃/temperature rise rate of min, behind the insulation 0.5-3h; Furnace cooling promptly makes fly ash base HS high porosity foamed ceramics to room temperature.
3. the preparation method of a kind of fly ash base HS high porosity foamed ceramics according to claim 2 is characterized in that: said caking agent is a Z 150PH.
4. the preparation method of a kind of fly ash base HS high porosity foamed ceramics according to claim 3 is characterized in that: pressing pressure is 20MPa~25MPa.
5. the preparation method of a kind of fly ash base HS high porosity foamed ceramics according to claim 4 is characterized in that: said sintering adopts chamber type electric resistance furnace or ceramic post sintering stove.
6. according to the preparation method of any described a kind of fly ash base HS high porosity foamed ceramics of claim 2-5; It is characterized in that: the foamed ceramics void content of preparation is up to 69%; Bending strength Da Gaoda 8.05MPa, ultimate compression strength is up to 11.04MPa.
CN201210246475XA 2012-07-17 2012-07-17 Fly ash based high-strength and high-porosity foamed ceramic and preparation method thereof Pending CN102731138A (en)

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Cited By (15)

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CN102964143A (en) * 2012-11-29 2013-03-13 山西安晟科技发展有限公司 Method for preparing foamed ceramic insulation board by waste glass ceramic wafer
CN103304253A (en) * 2013-06-27 2013-09-18 山东建筑大学 Porous ceramic prepared from red mud and coal ash and preparation method thereof
CN104045374A (en) * 2014-06-26 2014-09-17 刘海锋 Red mud porous material
CN104496535A (en) * 2015-01-04 2015-04-08 中南大学 Foamed ceramic mainly prepared from silica sand tailing and fly ash and preparation method thereof
CN104529518A (en) * 2015-01-08 2015-04-22 中南大学 Lead-zinc tailing-red mud-flyash-based foamed ceramic and preparation method thereof
CN106747319A (en) * 2017-01-22 2017-05-31 北方民族大学 Standby porous ceramics of a kind of utilization magnesium slag, coal ash for manufacturing and preparation method thereof
CN107500799A (en) * 2017-08-11 2017-12-22 河海大学 A kind of preparation method of light weight sludge flyash porous ceramics
CN108395271A (en) * 2018-03-28 2018-08-14 中南大学 Full waste residue foamed ceramics of coal gangue-fly ash-silica sand tailing system and preparation method thereof
CN108911726A (en) * 2018-08-28 2018-11-30 中南大学 A kind of gangue-permeable Ceramic Tiles of desulfurized gypsum-calcium carbonate system and preparation method thereof
CN110041097A (en) * 2019-04-02 2019-07-23 长沙集智创新工业设计有限公司 A kind of building ceramics and preparation method thereof
CN110092666A (en) * 2019-05-21 2019-08-06 广西中添新型材料有限公司 A kind of foamed ceramics and preparation method thereof
CN110237803A (en) * 2019-06-18 2019-09-17 南京永能新材料有限公司 A kind of environment-friendly garbage deodorant and preparation method thereof
CN111410550A (en) * 2020-04-20 2020-07-14 浙江工贸职业技术学院 Preparation method of porous ceramic
CN111960854A (en) * 2020-07-31 2020-11-20 内蒙古建能兴辉陶瓷有限公司 Foamed ceramic plate manufacturing device and method based on compression molding method and raw materials
CN113121257A (en) * 2021-05-18 2021-07-16 烟台大学 Ultra-light full-closed-cell foamed ceramic with compact surface and low-temperature firing method thereof

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Cited By (19)

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CN102964143B (en) * 2012-11-29 2014-08-13 山西安晟科技发展有限公司 Method for preparing foamed ceramic insulation board by waste glass ceramic wafer
CN102964143A (en) * 2012-11-29 2013-03-13 山西安晟科技发展有限公司 Method for preparing foamed ceramic insulation board by waste glass ceramic wafer
CN103304253A (en) * 2013-06-27 2013-09-18 山东建筑大学 Porous ceramic prepared from red mud and coal ash and preparation method thereof
CN103304253B (en) * 2013-06-27 2015-04-22 山东建筑大学 Porous ceramic prepared from red mud and coal ash and preparation method thereof
CN104045374A (en) * 2014-06-26 2014-09-17 刘海锋 Red mud porous material
CN104496535A (en) * 2015-01-04 2015-04-08 中南大学 Foamed ceramic mainly prepared from silica sand tailing and fly ash and preparation method thereof
CN104529518A (en) * 2015-01-08 2015-04-22 中南大学 Lead-zinc tailing-red mud-flyash-based foamed ceramic and preparation method thereof
CN106747319A (en) * 2017-01-22 2017-05-31 北方民族大学 Standby porous ceramics of a kind of utilization magnesium slag, coal ash for manufacturing and preparation method thereof
CN107500799B (en) * 2017-08-11 2020-09-18 河海大学 Preparation method of light sludge-fly ash porous ceramic
CN107500799A (en) * 2017-08-11 2017-12-22 河海大学 A kind of preparation method of light weight sludge flyash porous ceramics
CN108395271A (en) * 2018-03-28 2018-08-14 中南大学 Full waste residue foamed ceramics of coal gangue-fly ash-silica sand tailing system and preparation method thereof
CN108911726B (en) * 2018-08-28 2021-05-11 中南大学 Coal gangue-desulfurized gypsum-calcium carbonate system water-permeable ceramic tile and preparation method thereof
CN108911726A (en) * 2018-08-28 2018-11-30 中南大学 A kind of gangue-permeable Ceramic Tiles of desulfurized gypsum-calcium carbonate system and preparation method thereof
CN110041097A (en) * 2019-04-02 2019-07-23 长沙集智创新工业设计有限公司 A kind of building ceramics and preparation method thereof
CN110092666A (en) * 2019-05-21 2019-08-06 广西中添新型材料有限公司 A kind of foamed ceramics and preparation method thereof
CN110237803A (en) * 2019-06-18 2019-09-17 南京永能新材料有限公司 A kind of environment-friendly garbage deodorant and preparation method thereof
CN111410550A (en) * 2020-04-20 2020-07-14 浙江工贸职业技术学院 Preparation method of porous ceramic
CN111960854A (en) * 2020-07-31 2020-11-20 内蒙古建能兴辉陶瓷有限公司 Foamed ceramic plate manufacturing device and method based on compression molding method and raw materials
CN113121257A (en) * 2021-05-18 2021-07-16 烟台大学 Ultra-light full-closed-cell foamed ceramic with compact surface and low-temperature firing method thereof

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Application publication date: 20121017