CN106396727A - Light refractory material and preparation method thereof - Google Patents
Light refractory material and preparation method thereof Download PDFInfo
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- CN106396727A CN106396727A CN201610774846.XA CN201610774846A CN106396727A CN 106396727 A CN106396727 A CN 106396727A CN 201610774846 A CN201610774846 A CN 201610774846A CN 106396727 A CN106396727 A CN 106396727A
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Abstract
The invention discloses a light refractory material and a preparation method thereof. The light refractory material is prepared from red mud, gangue, calcium carbonate, magnesium carbonate, titanium oxide, sodium carbonate, and a pore forming agent, wherein the pore forming agent is composed of fructose, carbon powder, polyethylene microsphere, perlite, and magnesium sulfate heptahydrate. The refractory material is obtained through steps of ball milling, wet mixing, moulding, sintering, and post treatment. The light refractory material has the advantages of low volume density, large porosity, high using temperature, high compression strength, low thermal conductivity, and good thermal insulation property.
Description
Technical field
The present invention relates to refractory material manufacturing technology field, especially relate to a kind of light-duty refractory material and its preparation side
Method.
Background technology
In traditional sense, refractory material refers to that refractoriness is not less than 1580 DEG C of Inorganic Non-metallic Materials, and it is for height
The basic material of temperature technique service, is used as the structural material of the Thermal Equipments such as high temperature kiln, and industrial high temperature container and portion
The material of part, and corresponding physicochemical change and mechanism can be born.
Most of refractory material is with natural crystal（As fire clay, silica, magnesite, dolomite）For raw material manufacture
, using some raw materials of industry and artificial-synthetic material（As commercial alumina, carborundum, mullite synthesizing, synthetic spinel
Deng）Also increasing, therefore, the species of refractory material is a lot.Refractory material can be divided into the siliceous, silicon of oxidation according to mineral composition
Sour aluminum, magnesia, dolomite matter, olivine matter, spinel, containing carbonaceous, contain zirconia refractory and special refractory；Press
Natural crystal and artifact can be divided into according to manufacture method；Block elements and unshape refractory can be divided into by its mode；
Not burned product, burnt product and melt-cast products can be divided into according to heat treatment mode；Can be divided into common, senior and special according to refractoriness
Level refractory product；Acidity, neutral and basic refractory can be divided into according to chemical property；Lightweight and weight can be divided into according to its density
Fire resistant materials；Shape and size according to its product can be divided into standard brick, special shaped brick, special special shaped brick, pipe and flame ware；Also
Blast furnace can be divided into use by its application, cement kiln is used, glass furnace use, ceramic kiln refractory etc..
Lightweight refracrory is used as heat-barrier material on Industrial Stoves and other Thermal Equipments, and it has porosity height, body
The refractory material that long-pending density is little, thermal conductivity is low；Industrial Stoves masonry accumulation of heat loss and body of heater surface heat radiating loss account for fuel and disappear
The 24～45% of consumption, energy loss is huge so that energy utilization rate is low, using the lightweight refracrory that thermal conductivity is low, thermal capacity is little
Make furnace binding material, fuel consumption can be saved；Simultaneously as kiln can be rapidly heated and cool down, equipment can be improved and produce
Efficiency；Body of heater weight can also be mitigated, simplify kiln construction, improve product quality, reduce environment temperature, improve working conditions.But
Be lightweight refracrory there is also mechanical strength low it is impossible to be used for load-bearing, and its anti-wear performance is also poor.
Content of the invention
For solving the above problems, the invention provides a kind of porosity is high, bulk density is little, thermal conductivity is low, and machinery
Intensity and anti-wear performance preferably lightweight refracrory；
Present invention also offers a kind of step is succinct and high porosity, low bulk density, lower thermal conductivity, higher force can be obtained
Intensity and the preparation method of high wear resistance lightweight refracrory.
For achieving the above object, the technical solution used in the present invention is as follows：
A kind of light-duty refractory material, is obtained by the raw material of following weight portion：680～720 parts of red mud, 180～200 parts of gangue,
70～90 parts of calcium carbonate, 54～74 parts of magnesium carbonate, 27～37 parts of titanium oxide, 10～20 parts of sodium carbonate, 300～500 parts of pore creating material.
Gangue is the mine tailing after a kind of coal mining, and its main component is silica, aluminum oxide and combustible, also contains
There are the components such as a small amount of calcium oxide, magnesia, titanium oxide and iron oxide, in its combustible, also have some remaining coal, Huang Tie
Ore deposit etc., can generate the inorganic mineral with mullite as main component after high-temperature process, and combustible therein is permissible
Play promotion high-temperature process, reduce the effect of heat treatment energy consumption；Red mud is the mine tailing discarded after a kind of bauxite extracts aluminum oxide,
Its main component is the component such as aluminum oxide, silica, calcium oxide, iron oxide, also contains the groups such as a small amount of titanium oxide and sodium oxide molybdena
Point, the content of its aluminum oxide is often much higher than gangue；Gangue and red mud mix according to a certain percentage and can generate with not
Carry out the inorganic material that stone is main component；Aluminum oxide can form mullite phase, mullite with the inorganic oxide of silica system
A kind of inorganic compound with higher melt, its fusing point more than 1850 DEG C, sieve and silica-sesquioxide system be one common and
Excellent refractory material system, magnesium carbonate and calcium carbonate can decompose generation magnesia, calcium oxide and titanium dioxide in high temperature simultaneously
Carbon, the carbon dioxide of generation has the effect of pore-creating, and magnesia, calcium oxide are also the inorganic oxide with higher melt, with
The oxide reaction of sial system forms the refractoriness that solid solution can promote refractory material, but due to sial system oxide and oxidation
The reaction temperature of the raw materials such as magnesium, calcium oxide is higher so that the synthesis temperature of refractory material is higher, and energy consumption is also very big, in order to not
Suitably reduce synthesis temperature on the premise of impact refractoriness or less impact refractoriness, therefore add again with reduction in the feed
The sintering aid of synthesis temperature, titanium oxide is the sintering aid that some have superperformance, in the case of a small amount of interpolation
With the significant synthesis temperature reducing refractory material, the addition of this several sintering aid simultaneously also will not be as potassium sodium system sintering aid
Equally refractoriness is caused with a large effect.
Preferably, red mud be high alumina red mud, its alumina content be 26～28wt%, silica content be 12～
14wt%, calcium oxide content is 25～27wt%；Gangue is high-silica gangue, and its silica content is 48～50wt%, aluminum oxide
Content is 13～15wt%.
Preferably, pore creating material is made up of the raw material of following weight portion：20 parts of fructose, 30～50 parts of powdered carbon, polyethylene is micro-
40～60 parts of ball, 40～60 parts of perlite, 40～50 parts of epsom salt.
Light-duty refractory material is the effect due to wherein having more pore with lightweight heat-proof, prepares in prior art
Using single pore creating material, the generally more original pore creating material such as wood chip light-duty refractory material more；Single pore creating material, duct shape
The temperature becoming is single, and forms duct due to being almost in same temperature interval, namely in order to be formed in the middle of refractory material
Pore, can discharge substantial amounts of gas in same temperature interval, and the impact of a large amount of gases in the short time can cause structure of refractory
The mechanical strength becoming especially loose, prepared refractory material is very poor；Meanwhile, in prior art, some pore creating materials are relatively low
Just make refractory material be internally formed duct when warm, but temperature raise after, under pyroreaction these ducts can be closed again or
Person is padded, and causes the porosity to decline, or even refractory material occurs collapse.Using compound pore creating material therefore in the present invention, make
Obtaining different phase in 100～800 DEG C of interval ranges all can have pore creating material generation gas to form pore, pore-creating refractory material
The release of agent decomposition gas more relaxes, and the duration is also longer, does not thus result in gas and discharges at short notice, it is to avoid
The especially loose unfavorable situation of structure of refractory that gas impact leads to is it is also possible to avoid continuing pyroreaction posterior spiracle quilt
Situation about again filling up.
These pore creating materials are decomposed the different types of gas of releasing in the different times of whole pyroreaction, 100～
During 150 DEG C of temperature, epsom salt loses the crystallization water, and the fructose charing release steam in 300～450 DEG C of temperature, 600～800
During DEG C temperature, polyethylene microballoon occurs thermal decomposition to release gas, and the charcoal being formed after fructose charing and powdered carbon are also in this temperature range
React releasing gas, loses the epsom salt after the crystallization water and also decomposes generation sulfurous gas and oxidation in this temperature range
Magnesium, perlite also starts to decompose in this temperature range, finally in 1300～1400 DEG C of temperature ranges, all of in pore creating material
High temperature decomposable asymmetric choice net material decomposes generation gas completely and completes to sinter, and all substances become stable.Many kinds of substance in pore creating material
The different decomposition of different temperatures occurrence degree produce different types of gas so that the pore in prepared refractory material more
Abundant, the distribution in aperture is also more various and uniform, and produces gas in whole process, and occurring pore-creating reaction to make will not
Situation about again being filled up because of the pore that reaction temperature raised portion first generates.
A kind of preparation method of light-duty refractory material, comprises the following steps：
a）Add the absolute ethyl alcohol of 3～4 times of raw material weight in addition to pore creating material in the raw material in addition to pore creating material, be 2000 in rotating speed
Ball milling 2～4 hours under～2500rpm, are then added thereto to pore creating material again, are ball milling 2～4 under 500～1000rpm in rotating speed
Hour, finally dry；
b）By the raw material compression molding after processing through step a；
c）Raw material after compression molding is sintered, is started to warm up by room temperature, be incubated 20～40 minutes at 100～150 DEG C,
300～450 DEG C are incubated 20～40 minutes, are incubated 60～80 minutes at 600～800 DEG C, little in 1300～1400 DEG C of sintering 7～11
When, then naturally cool to room temperature, light-duty refractory material first product is obtained；
d）The light-duty refractory material first product that will be obtained, soaks in hydrochloric acid solution 40～80 minutes, is then obtained after cleaning, drying
Light-duty refractory material.
Two step ball-milling methods make the raw material more uniform and smooth in addition to pore creating material, improve sintering character it is also possible to make to burn
The refractory material of knot is more fine and close in non-bore region, strengthens intensity；The interval sintering method of multi-temperature is cooperation pore-creating
The species of agent, allows different pore creating materials play the effect of pore-creating within the scope of respective temperature；When last hydrochloric acid solution soaks
In order to remove some dust such as remaining, unsintered calcium oxide in apparent pore.
Preferably, the pressure of compression molding is 8～10MPa in step b.
Preferably, in step b, raw material carries out isostatic cool pressing after 10～12MPa compression molding again under 14～16MPa
Shaping, the dwell time is 30～60 seconds.
Preferably, in step c, each stage heating rate is all 8～10 DEG C/min.
Preferably, the pH value of hydrochloric acid solution is 6.0～6.2 in step d.
Therefore, the invention has the advantages that：
（1）Refractory material in the present invention has a relatively low bulk density, the larger porosity；
（2）Refractory material in the present invention also has higher Shi Yong temperature and higher compressive resistance；
（3）Refractory material in the present invention also has relatively low thermal conductivity, has good heat-blocking action.
Specific embodiment
With reference to specific embodiment, technical scheme is further described.
Embodiment 1
A kind of light-duty refractory material, is obtained by the raw material of following weight portion：680 parts of red mud, 180 parts of gangue, 70 parts of calcium carbonate,
54 parts of magnesium carbonate, 27 parts of titanium oxide, 10 parts of sodium carbonate, 300 parts of pore creating material；
Wherein, pore creating material is made up of the raw material of following weight portion：20 parts of fructose, 30 parts of powdered carbon, 40 parts of polyethylene microballoon, perlite
40 parts, 40 parts of epsom salt.
A kind of preparation method of light-duty refractory material, comprises the following steps：
a）Add the absolute ethyl alcohol of 3 times of raw material weight in addition to pore creating material in the raw material in addition to pore creating material, be 2000rpm in rotating speed
Lower ball milling 2 hours, is then added thereto to pore creating material again, is ball milling under 500rpm 2 hours in rotating speed, finally dries；
b）By the raw material compression molding after processing through step a；
c）Raw material after compression molding is sintered, is started to warm up by room temperature, be incubated 20 minutes at 100 DEG C, be incubated at 300 DEG C
20 minutes, it is incubated 60 minutes at 600 DEG C, sinters 7 hours at 1300 DEG C, then naturally cool to room temperature, light-duty fire proofed wood is obtained
Material first product；
d）The light-duty refractory material first product that will be obtained, soaks in hydrochloric acid solution 40 minutes, is then obtained light-duty after cleaning, drying
Refractory material.
Embodiment 2
A kind of light-duty refractory material, is obtained by the raw material of following weight portion：700 parts of red mud, 190 parts of gangue, 80 parts of calcium carbonate,
64 parts of magnesium carbonate, 32 parts of titanium oxide, 15 parts of sodium carbonate, 400 parts of pore creating material；
Wherein, pore creating material is made up of the raw material of following weight portion：20 parts of fructose, 40 parts of powdered carbon, 50 parts of polyethylene microballoon, perlite
50 parts, 45 parts of epsom salt.
A kind of preparation method of light-duty refractory material, comprises the following steps：
a）Add the absolute ethyl alcohol of 3.5 times of raw material weight in addition to pore creating material in the raw material in addition to pore creating material, in rotating speed be
Ball milling 3 hours under 2200rpm, are then added thereto to pore creating material again, are ball milling under 750rpm 3 hours in rotating speed, finally dry；
b）By the raw material compression molding after processing through step a；
c）Raw material after compression molding is sintered, is started to warm up by room temperature, be incubated 30 minutes at 120 DEG C, be incubated at 380 DEG C
30 minutes, it is incubated 70 minutes at 700 DEG C, sinters 9 hours at 1350 DEG C, then naturally cool to room temperature, light-duty fire proofed wood is obtained
Material first product；
d）The light-duty refractory material first product that will be obtained, soaks in hydrochloric acid solution 60 minutes, is then obtained light-duty after cleaning, drying
Refractory material.
Embodiment 3
A kind of light-duty refractory material, is obtained by the raw material of following weight portion：720 parts of red mud, 200 parts of gangue, 90 parts of calcium carbonate,
74 parts of magnesium carbonate, 37 parts of titanium oxide, 20 parts of sodium carbonate, 500 parts of pore creating material；
Wherein, pore creating material is made up of the raw material of following weight portion：20 parts of fructose, 50 parts of powdered carbon, 60 parts of polyethylene microballoon, perlite
60 parts, 50 parts of epsom salt.
A kind of preparation method of light-duty refractory material, comprises the following steps：
a）Add the absolute ethyl alcohol of 4 times of raw material weight in addition to pore creating material in the raw material in addition to pore creating material, be 2500rpm in rotating speed
Lower ball milling 4 hours, is then added thereto to pore creating material again, is ball milling under 1000rpm 4 hours in rotating speed, finally dries；
b）By the raw material compression molding after processing through step a；
c）Raw material after compression molding is sintered, is started to warm up by room temperature, be incubated 40 minutes at 150 DEG C, be incubated at 450 DEG C
40 minutes, it is incubated 80 minutes at 800 DEG C, sinters 11 hours at 1400 DEG C, then naturally cool to room temperature, light-duty fire proofed wood is obtained
Material first product；
d）The light-duty refractory material first product that will be obtained, soaks in hydrochloric acid solution 80 minutes, is then obtained light-duty after cleaning, drying
Refractory material.
Embodiment 4
A kind of light-duty refractory material, is obtained by the raw material of following weight portion：680 parts of red mud, 200 parts of gangue, 70 parts of calcium carbonate,
54 parts of magnesium carbonate, 27 parts of titanium oxide, 10 parts of sodium carbonate, 300 parts of pore creating material；Red mud is high alumina red mud, and its alumina content is
26wt%, silica content is 12wt%, and calcium oxide content is 25wt%；Gangue is high-silica gangue, and its silica content is
48wt%, alumina content is 13wt%；
Wherein, pore creating material is made up of the raw material of following weight portion：20 parts of fructose, 30 parts of powdered carbon, 40 parts of polyethylene microballoon, perlite
40 parts, 40 parts of epsom salt.
A kind of preparation method of light-duty refractory material, comprises the following steps：
a）Add the absolute ethyl alcohol of 3 times of raw material weight in addition to pore creating material in the raw material in addition to pore creating material, be 2000rpm in rotating speed
Lower ball milling 2 hours, is then added thereto to pore creating material again, is ball milling under 500rpm 2 hours in rotating speed, finally dries；
b）Raw material after processing through step a is carried out cold isostatic compaction, pressurize after 10MPa compression molding again under 14MPa
Time is 30 seconds；
c）Raw material after compression molding is sintered, is started to warm up by room temperature, be incubated 20 minutes at 100 DEG C, be incubated at 300 DEG C
20 minutes, it is incubated 60 minutes at 600 DEG C, sinters 7 hours at 1300 DEG C, then naturally cool to room temperature, light-duty fire proofed wood is obtained
Material first product；Each stage heating rate is all 8 DEG C/min；
d）Will be obtained light-duty refractory material first product, pH value be 6.0 hydrochloric acid solution in soak 40 minutes, then cleaning, drying
Light-duty refractory material is obtained afterwards.
Embodiment 5
A kind of light-duty refractory material, is obtained by the raw material of following weight portion：700 parts of red mud, 190 parts of gangue, 80 parts of calcium carbonate,
64 parts of magnesium carbonate, 32 parts of titanium oxide, 15 parts of sodium carbonate, 400 parts of pore creating material；Red mud is high alumina red mud, and its alumina content is
27wt%, silica content is 13wt%, and calcium oxide content is 26wt%；Gangue is high-silica gangue, and its silica content is
49wt%, alumina content is 14wt%；
Wherein, pore creating material is made up of the raw material of following weight portion：20 parts of fructose, 40 parts of powdered carbon, 50 parts of polyethylene microballoon, perlite
50 parts, 45 parts of epsom salt.
A kind of preparation method of light-duty refractory material, comprises the following steps：
a）Add the absolute ethyl alcohol of 3.5 times of raw material weight in addition to pore creating material in the raw material in addition to pore creating material, in rotating speed be
Ball milling 3 hours under 2300rpm, are then added thereto to pore creating material again, are ball milling under 800rpm 3 hours in rotating speed, finally dry；
b）Raw material after processing through step a is carried out cold isostatic compaction, pressurize after 11MPa compression molding again under 15MPa
Time is 45 seconds；
c）Raw material after compression molding is sintered, is started to warm up by room temperature, be incubated 30 minutes at 130 DEG C, be incubated at 380 DEG C
30 minutes, it is incubated 70 minutes at 700 DEG C, sinters 9 hours at 1350 DEG C, then naturally cool to room temperature, light-duty fire proofed wood is obtained
Material first product；Each stage heating rate is all 9 DEG C/min；
d）Will be obtained light-duty refractory material first product, pH value be 6.1 hydrochloric acid solution in soak 60 minutes, then cleaning, drying
Light-duty refractory material is obtained afterwards.
Embodiment 6
A kind of light-duty refractory material, is obtained by the raw material of following weight portion：720 parts of red mud, 200 parts of gangue, 90 parts of calcium carbonate,
74 parts of magnesium carbonate, 37 parts of titanium oxide, 20 parts of sodium carbonate, 500 parts of pore creating material；Red mud is high alumina red mud, and its alumina content is
28wt%, silica content is 14wt%, and calcium oxide content is 27wt%；Gangue is high-silica gangue, and its silica content is
50wt%, alumina content is 15wt%；
Wherein, pore creating material is made up of the raw material of following weight portion：20 parts of fructose, 50 parts of powdered carbon, 60 parts of polyethylene microballoon, perlite
60 parts, 50 parts of epsom salt.
A kind of preparation method of light-duty refractory material, comprises the following steps：
a）Add the absolute ethyl alcohol of 4 times of raw material weight in addition to pore creating material in the raw material in addition to pore creating material, be 2500rpm in rotating speed
Lower ball milling 4 hours, is then added thereto to pore creating material again, is ball milling under 1000rpm 4 hours in rotating speed, finally dries；
b）Raw material after processing through step a is carried out cold isostatic compaction, pressurize after 12MPa compression molding again under 16MPa
Time is 60 seconds；
c）Raw material after compression molding is sintered, is started to warm up by room temperature, be incubated 40 minutes at 150 DEG C, be incubated at 450 DEG C
40 minutes, it is incubated 80 minutes at 800 DEG C, sinters 11 hours at 1400 DEG C, then naturally cool to room temperature, light-duty fire proofed wood is obtained
Material first product；Each stage heating rate is all 10 DEG C/min；
d）Will be obtained light-duty refractory material first product, pH value be 6.2 hydrochloric acid solution in soak 80 minutes, then cleaning, drying
Light-duty refractory material is obtained afterwards.
Technical indicator：
1. the porosity 45～50%；
2. bulk density 1.2g/cm3And it is following；
3. highest can use 1300 DEG C of temperature；
4. thermal conductivity（Under 1000 DEG C of environment）：0.60W/（m·℃）
5. cold crushing strength：≥180MPa.
Claims (8)
1. a kind of light-duty refractory material is it is characterised in that be obtained by the raw material of following weight portion：680～720 parts of red mud, gangue
180～200 parts, 70～90 parts of calcium carbonate, 54～74 parts of magnesium carbonate, 27～37 parts of titanium oxide, 10～20 parts of sodium carbonate, pore creating material
300～500 parts.
2. a kind of light-duty refractory material according to claim 1 it is characterised in that：Described red mud is high alumina red mud, its
Alumina content is 26～28wt%, and silica content is 12～14wt%, and calcium oxide content is 25～27wt%；Gangue is height
Silicon gangue, its silica content is 48～50wt%, and alumina content is 13～15wt%.
3. a kind of light-duty refractory material according to claim 1 is it is characterised in that described pore creating material is by following weight portion
Raw material composition：20 parts of fructose, 30～50 parts of powdered carbon, 40～60 parts of polyethylene microballoon, 40～60 parts of perlite, epsom salt
40～50 parts.
4. a kind of preparation method of light-duty refractory material according to claim 1 is it is characterised in that comprise the following steps：
a）Add the absolute ethyl alcohol of 3～4 times of raw material weight in addition to pore creating material in the raw material in addition to pore creating material, be 2000 in rotating speed
Ball milling 2～4 hours under～2500rpm, are then added thereto to pore creating material again, are ball milling 2～4 under 500～1000rpm in rotating speed
Hour, finally dry；
b）By the raw material compression molding after processing through step a；
c）Raw material after compression molding is sintered, is started to warm up by room temperature, be incubated 20～40 minutes at 100～150 DEG C,
300～450 DEG C are incubated 20～40 minutes, are incubated 60～80 minutes at 600～800 DEG C, little in 1300～1400 DEG C of sintering 7～11
When, then naturally cool to room temperature, light-duty refractory material first product is obtained；
d）The light-duty refractory material first product that will be obtained, soaks in hydrochloric acid solution 40～80 minutes, is then obtained after cleaning, drying
Light-duty refractory material.
5. a kind of light-duty refractory material according to claim 4 preparation method it is characterised in that：Described step b middle mold
Molded pressure is 8～10MPa.
6. a kind of light-duty refractory material according to claim 4 or 5 preparation method it is characterised in that：Described step b
In, raw material carries out cold isostatic compaction after 10～12MPa compression molding again under 14～16MPa, and the dwell time is 30～60
Second.
7. a kind of light-duty refractory material according to claim 4 preparation method it is characterised in that：In described step c, respectively
Stage heating rate is all 8～10 DEG C/min.
8. a kind of light-duty refractory material according to claim 4 preparation method it is characterised in that：Salt in described step d
The pH value of acid solution is 6.0～6.2.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330424A (en) * | 2020-01-20 | 2020-06-26 | 北京宝聚能源科技有限公司 | Flue gas desulfurizing agent and preparation method and application thereof |
| CN112028609A (en) * | 2020-09-18 | 2020-12-04 | 山东鲁阳浩特高技术纤维有限公司 | Anorthite light refractory material prepared from waste materials and preparation method thereof |
| CN114988903A (en) * | 2022-05-24 | 2022-09-02 | 北京科技大学广州新材料研究院 | High-strength low-shrinkage porous ceramic and preparation method thereof |
| CN116409986A (en) * | 2023-04-13 | 2023-07-11 | 河南鑫诚耐火材料股份有限公司 | Fire-resistant fire-blocking brick for upper part of fire path wall of carbon roasting furnace and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101417888A (en) * | 2008-11-10 | 2009-04-29 | 中国地质大学（北京） | Porous light heat insulating refractory materials and preparation method thereof |
| CN103030372A (en) * | 2012-12-16 | 2013-04-10 | 河南理工大学 | Bayer process red mud and gangue porous sintered brick and production method thereof |
-
2016
- 2016-08-31 CN CN201610774846.XA patent/CN106396727A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101417888A (en) * | 2008-11-10 | 2009-04-29 | 中国地质大学（北京） | Porous light heat insulating refractory materials and preparation method thereof |
| CN103030372A (en) * | 2012-12-16 | 2013-04-10 | 河南理工大学 | Bayer process red mud and gangue porous sintered brick and production method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 严李等: "SiO2/Al2O3复合多孔陶瓷膜支撑体的制备", 《中国陶瓷》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330424A (en) * | 2020-01-20 | 2020-06-26 | 北京宝聚能源科技有限公司 | Flue gas desulfurizing agent and preparation method and application thereof |
| CN112028609A (en) * | 2020-09-18 | 2020-12-04 | 山东鲁阳浩特高技术纤维有限公司 | Anorthite light refractory material prepared from waste materials and preparation method thereof |
| CN114988903A (en) * | 2022-05-24 | 2022-09-02 | 北京科技大学广州新材料研究院 | High-strength low-shrinkage porous ceramic and preparation method thereof |
| CN116409986A (en) * | 2023-04-13 | 2023-07-11 | 河南鑫诚耐火材料股份有限公司 | Fire-resistant fire-blocking brick for upper part of fire path wall of carbon roasting furnace and preparation method thereof |
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Application publication date: 20170215 |