CN109279783A - A kind of raw material includes the devitrified glass that titanium slag is mentioned containing chlorine - Google Patents
A kind of raw material includes the devitrified glass that titanium slag is mentioned containing chlorine Download PDFInfo
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- CN109279783A CN109279783A CN201811344111.9A CN201811344111A CN109279783A CN 109279783 A CN109279783 A CN 109279783A CN 201811344111 A CN201811344111 A CN 201811344111A CN 109279783 A CN109279783 A CN 109279783A
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- devitrified glass
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- raw material
- titanium slag
- containing chlorine
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
- C03C10/0063—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing waste materials, e.g. slags
Abstract
It is the devitrified glass that titanium slag is mentioned containing chlorine the present invention provides a kind of primary raw material.The devitrified glass may include glass phase and crystallite phase, wherein the crystallite phase may include diopside phase and aspidelite phase.Beneficial effects of the present invention can include: can be realized the comprehensive utilization that titanium slag is mentioned containing chlorine, proposing titanium slag utilization rate containing chlorine is 85% or more；Devitrified glass is had excellent performance, and performance is higher than lithotome.
Description
Technical field
The present invention relates to resource utilization and inorganic non-metallic field of functional materials, particularly, are related to one kind to mention containing chlorine
Titanium slag is the devitrified glass that primary raw material is prepared.
Background technique
Devitrified glass also known as glass ceramics, micro-crystalline ceramic are to pass through control based on glass and ceramic forming technique
Heat treating regime, obtained crystallite phase and glass phase and a kind of polycrystalline material deposited are high hard because it is with good mechanical performance
Degree, high abrasion and acid-alkali-corrosive-resisting etc. can be used as high-grade construction decoration material and multiple functions material etc..Existing devitrified glass
Raw material include industrial residue, tailing, flyash etc..Wherein, all there is energy consumption with the technique that industrial residue prepares devitrified glass
The problems such as height, process flow is long, process is tedious, and industrial residue utilization rate is lower.
Containing chlorine mention titanium slag be titanium-containing blast furnace slag obtained after high temperature cabonization-low temperature chlorination mention titanium slag, chlorinity is higher,
Danger slag is had been cited as, wherein then very big to harm such as soil, environment.Therefore, the processing of titanium slag is proposed containing chlorine and comprehensively utilize very heavy
It wants.It is high that titanium slag chlorinity is mentioned containing chlorine, it is difficult to be directly used in building material, it is necessary to pass through washing roasting dechlorination or addition antichlor roasting
It could be used after burn off chlorine, and added value of product is lower after dechlorination.
And currently, including the devitrified glass for mentioning titanium slag containing chlorine there has been no raw material.
Summary of the invention
For the deficiencies in the prior art, it is an object of the invention to solve above-mentioned one existing in the prior art
Or multiple problems.For example, being the devitrified glass for mentioning titanium slag containing chlorine one of the objects of the present invention is to provide a kind of primary raw material, come
Realize the comprehensive utilization that titanium slag is mentioned containing chlorine.
It to achieve the goals above, include the devitrified glass that titanium slag is mentioned containing chlorine the present invention provides a kind of raw material.It is described micro-
Crystal glass includes glass phase and crystallite phase, and the mass fraction of the glass phase is 80~85%, the mass fraction of the crystallite phase
It is 15~20%, wherein the crystallite phase includes that mass ratio is (95~97): the diopside phase and aspidelite phase of (3~5).
An exemplary embodiment according to the present invention, the form of the crystallite phase may include column and sheet.
The length of an exemplary embodiment according to the present invention, the columnar micro phase is 1.5~3.5 μm, and width is
0.4~1 μm, the length of the sheet-like crystallite phase is 2.3~3 μm, and width is 1.1~1.4 μm.
An exemplary embodiment according to the present invention further includes stomata in the devitrified glass, and the stomata includes institute
State the gap between glass phase and the crystallite phase and/or the gap between each crystal phase.I.e. stomata may include between each crystal phase
At least one of both gaps of gap between gap, glass phase and crystallite phase.
An exemplary embodiment according to the present invention, in devitrified glass, the volume accounting of the stomata can for 4% with
Under, it can be 1~3% further.
An exemplary embodiment according to the present invention, the aperture of the stomata can be 0.1~0.6 μm.
An exemplary embodiment according to the present invention, the devitrified glass may include according to the as follows of mass percent meter
Ingredient:
27~30%CaO, 33~36%SiO2, 10~13%Al2O3, 7~9%TiO2, 3~5%Fe2O3, 5~7%
MgO, 2~3%R2O, wherein R2O includes Na2O and K2At least one of O.
An exemplary embodiment according to the present invention, the glass phase are filled between crystallite phase and/or are covered on crystalline substance
Grain surface.
An exemplary embodiment according to the present invention, the volume density of the devitrified glass can be 2.60~2.8g/cm3,
Water absorption rate can be for 0.3% hereinafter, compression strength can be 102~140MPa.Further, volume density can be 2.65~2.76g/
cm3, water absorption rate can be 0.05~0.2%, and compression strength can be 120~140MPa.
The acid resistance of an exemplary embodiment according to the present invention, the devitrified glass is 96% or more, and alkali resistance is
97% or more.Further, acid resistance can be 96~98.7%, and alkali resistance can be 97~98.2%.
An exemplary embodiment according to the present invention, the devitrified glass include the crystallite being prepared by the following method out
Glass: to mention titanium slag and cullet as raw material containing chlorine, raw material is pre-processed, base powder is obtained, wherein contain chlorine in raw material
The mass fraction of titanium slag is mentioned 85% or more；Base pressed by powder is formed, green body is obtained；The green body is heated to 800~
It 1000 DEG C, keeps the temperature to promote green body nucleation and crystallization, is again heated to 1100~1200 DEG C of sintering, is cooled down after the completion of to be sintered,
Obtain devitrified glass.
Compared with prior art, the beneficial effect comprise that can be realized the comprehensive utilization for mentioning titanium slag containing chlorine, contain chlorine
Proposing titanium slag utilization rate is 85% or more；Devitrified glass is had excellent performance, and performance is higher than lithotome.
Detailed description of the invention
By the description carried out with reference to the accompanying drawing, above and other purpose of the invention and feature will become more clear
Chu, in which:
Fig. 1 is to show the X-ray diffractogram of devitrified glass of the invention；
Fig. 2 is to show a scanning electron microscope (SEM) photograph of devitrified glass of the invention.
Specific embodiment
Hereinafter, it will be described in detail in conjunction with attached drawing and exemplary embodiment of the invention to mention titanium slag using containing chlorine and be
The devitrified glass of primary raw material.
Mentioning titanium slag containing chlorine is the one kind obtained after the processing of " high temperature cabonization-low temperature chlorination " titanium extracting technology by titanium-containing blast furnace slag
Low titanium type industry danger slag containing chlorine.The main component for mentioning titanium slag containing chlorine is CaO, SiO2、Al2O3Deng meeting and prepare devitrified glass
Main component, at the same its contain can be directly as the TiO of the Nucleating Agent ingredient of devitrified glass2、Fe2O3；Cl in titanium slag is mentioned containing chlorine-
Content be 2~5%, Cl-It mentions in titanium slag containing chlorine mainly with CaCl2Form exists, this will make to mention titanium slag containing chlorine with one permanent
Warm moisture absorption can play the role of granulating agent and binder.
To mention titanium slag as primary raw material containing chlorine, a small amount of ingredient is added, is obtained by pretreatment (i.e. broken, dry and mixing)
Base powder carries out dry-pressing formed obtained devitrified glass green body to powder, carries out low-temperature heat, height to green body in tunnel oven
Crystallized glass article is finally made using trimming, polishing in temperature heating and cooling.Wherein, it can be removed in tunnel oven
Chlorine in slag.Ingredient can be cullet；Each component mass percent in titanium slag and the batch material of composition is proposed containing chlorine are as follows: is contained
Chlorine mentions 85% or more titanium slag, 15% or less cullet.The production technology the method only need to be by a high-temperature process, and to burning
Chloride caused by during devitrified glass processed is collected, and makes to mention in titanium slag devitrified glass preparation process containing chlorine without harmful gas
Body discharge.The technique is solid waste utilization, reduces environmental pollution and energy-saving and three-waste free discharge green manufacturing in production
Technique.
In an exemplary embodiment of the present invention, the devitrified glass may include glass phase and crystallite phase, the glass
The mass fraction of glass phase is 15~20%, and the mass fraction of the crystallite phase is 80~85%, further, the quality of glass phase
Score is 16~18%, and the mass fraction of crystallite phase is 82~84%.As shown in Figure 1, crystallite phase may include diopside phase and Xie
Shi Xiang.Wherein, diopside is mutually principal crystalline phase, and aspidelite is mutually secondary crystal phase, and the mass ratio of the two can be (95~97): (3~5), example
Such as 96:4.
In the present embodiment, diopside phase content highest is the principal crystalline phase of devitrified glass, is able to ascend devitrified glass
Mechanical property keeps devitrified glass compression strength higher；Aspidelite phase content is lower, is the pair that devitrified glass is formed in Crystallization Process
Crystal phase.
In the present embodiment, crystallite phase morphology mainly includes column and sheet in devitrified glass.Wherein, diopside is mutually column
Shape, aspidelite are mutually sheet.A length of 1.5~3.5 μm of column crystal, width is 0.4~1 μm；A length of 2.3~3 μm of flake crystalline, width 1.1
~1.4 μm.Column crystal is the Main Morphology of crystallite phase, and flake crystalline is the secondary form of crystallite phase, and column crystal aggregation is grown, and piece
Shape crystalline substance is isolated to be existed.The size that the above crystallite phase morphology corresponds to crystal grain is all smaller, and crystal grain is connected finer and closely woven, the gap between crystal grain
Reduce, is conducive to the uniform filling of glass phase, to promote the performance of devitrified glass.Fig. 2 shows devitrified glasses of the invention
A scanning electron microscope (SEM) photograph, can be also found that part crack in Fig. 2, this is because devitrified glass is after hydrofluoric acid treatment, glass phase
Corroded by hydrofluoric acid more serious, and leaves crack on devitrified glass surface, rather than the stomata of devitrified glass itself.
In the present embodiment, the glass phase mainly occurs softening in hot stage by the waste glass powder in raw material and is formed
Amorphous substance, and in hot stage occur viscous flow, be constantly filled in the gap between crystal grain, crystallite glass can be reduced
The stomata of glass enables devitrified glass fine and close.
Glass phase is filled between crystal grain and/or is covered on grain surface, and glass phase is tightly combined with crystallite phase, Neng Gouling
Devitrified glass has good mechanical property.
In the present embodiment, the main chemical compositions in the devitrified glass are by mass percentage are as follows:
27~30%CaO, 33~36%SiO2, 10~13%Al2O3, 7~9%TiO2, 3~5%Fe2O3, 5~7%
MgO, 2~3%R2O, wherein R2O includes Na2O and K2At least one of O.
In the present embodiment, devitrified glass is made of crystallite phase, glass phase and Minute pores.Wherein, the accounting of stomata is
4% hereinafter, such as 1~3%.Stomata may include that glass phase is not filled up completely the alternate gap of crystallite in devitrified glass, i.e., described
Stomata includes the gap between the glass phase and the crystallite phase；Stomata may also include the gap between crystal grain, i.e., the described gas
Hole includes the gap of crystal grain joining place.The aperture of the stomata can be 0.1~0.6 μm, such as 0.3 μm.In devitrified glass or pottery
In the production process of porcelain, stomata can not exclude completely, and the stomata accounting of devitrified glass provided by the invention is lower, aperture is smaller,
This can guarantee the high-performance of devitrified glass.
In the present embodiment, the property of devitrified glass can include: volume density is 2.60~2.8g/cm3, water absorption rate is
0.3% hereinafter, compression strength is 102~140MPa, and acid resistance is 96% or more, and alkali resistance is 97% or more.For example, crystallite glass
The volume density of glass can be 2.65~2.76g/cm3, water absorption rate can be 0.05~0.2%, and compression strength can be 120~140MPa,
Acid resistance can be 96~98.7%, and alkali resistance can be 97~98.2%.
The raw material of devitrified glass influences the type of the crystallite phase of its formation.Since calcium and magnesium aluminium silicone content is higher in raw material, have
Conducive to the formation of diopside phase；Ceramics can be promoted by mentioning the iron in titanium slag, facilitate diopside columnar shape crystal grain
Growth, improve diopside phase content；The partial-titanium mentioned in titanium slag crystallizes to form aspidelite phase with calcium pasc reaction, with form of flake crystal
State is present in devitrified glass.
In the present embodiment, the devitrified glass may include the devitrified glass prepared by following methods.
To mention titanium slag and cullet as raw material containing chlorine, raw material is pre-processed, obtaining water content is 3%~6%, grain
The base powder that degree is 40~100 μm.Pretreatment may include the links such as dry, crushing and mixing.Titanium slag is mentioned containing chlorine in raw material
For mass fraction 85% or more, this can satisfy the high usage demand of solid waste.The granularity of base powder is controlled in 40~100 μ
M, granularity control are conducive to blank forming in the range, while can be avoided the meticulous institute of grinding increased time and energy consumption；Into
One step, the granularity of base powder can be 45~96 μm.Cullet can not only play fluxing effect, and under the high temperature conditions
Liquid phase is provided, promotes green body dense sintering, additionally it is possible to complementary element.If aqueous height can be unfavorable for crushing (such as unfavorable in raw material
In ball milling), it will affect the powder uniformity, the proportion of raw material can also be had an impact, moreover, if aqueous height in raw material, subsequent
Compression moulding in, in raw material water will receive pressure outflow, the corrosion of mold will be increased in this way.Therefore, it is necessary to carry out to raw material
Dry, water content should be controlled 3%~6% in base powder, further, can control 4%~6%, further
4%~5%.When base powder moisture content is lower than 3%, under the pressure in base step when pressing blank, it is easy to cause
Green body can not be compacted, and defect occurs in edge, if improving pressure, easily caused the expansion of residual air and made blank cracking.
Base pressed by powder is formed, the green body of devitrified glass is obtained.The step of compression moulding can include: by the base
Powder is evenly laid out in a mold, in 250~720kgf/cm2Pressure under 15~30s of pressure maintaining, obtained after then demoulding described
The green body of devitrified glass further can be in 255~714kgf/cm2Pressure under pressure maintaining.Pressure and the control of dwell time parameter
System is conducive to blank forming and demoulding within the above range, such as pressure controllable system is in 310 or 680kgf/cm2, the time is controllable
In 17 or 28s.Wherein, the environmental condition of base can be room temperature, or the temperature of slightly above room temperature, such as 30~100 DEG C.
Green body is heat-treated to obtain devitrified glass.Wherein, it is heat-treated can include: green body is heated to 800~1000
DEG C (cold stage) can be further 800~950 DEG C, such as 810 DEG C, 910 DEG C etc., then to promote green body nucleation knot
Crystalline substance is further continued for being heated to 1100~1200 DEG C (hot stage or sintering stage) sintering, further can be 1130~1185 DEG C, example
Such as, 1140 DEG C, 1170 DEG C etc., cooling after the completion of to be sintered.Wherein, the soaking time of cold stage can be 30~60min, high
The soaking time of thermophase can be 30~90min.The heating rate for being heated to cold stage can be controlled in 5~15 DEG C/min, this
Sample can quickly and farthest exclude volatile material (such as CO in green body in cold stage2, chloride etc.), be conducive to
The collection of chloride and the sintering of green body；Further, the heating rate of cold stage can be 5~10 DEG C/min.Cold stage
The heating rate for being heated to hot stage can be controlled in 3~5 DEG C/min, heating rate can be prevented too fast in hot stage in this way
The problems such as caused blank sintering deformation or uneven sintering, the i.e. too fast quality for influencing whether sintering of heating rate, and heat up
Speed is too low to will cause energy consumption height, low efficiency.By the control of the temperature and time of cold stage 800~1000 DEG C and 30~
60min is conducive to the nucleation and crystallization of green body；By the control of the temperature and time of hot stage 1100~1200 DEG C and 30~
90min can enable blank sintering fine and close.Cooling step may include slow cooling to room temperature (or environment temperature) or first slow cooling again
Rapid cooling.Wherein, rapid cooling is specific again for first slow cooling can include: it is kept the temperature under firing temperature after terminating (i.e. hot stage heat preservation terminates),
Slow cooling processing is carried out, by firing temperature slow cooling to 300~500 DEG C, rate of temperature fall can be 1~4 DEG C/min, the rate of temperature fall
Quartz crystal conversion can be reduced or be sintered the unstable influence to devitrified glass；Then extremely by 300~500 DEG C of fast coolings
200 DEG C hereinafter, such as 30~100 DEG C, are not affected by temperature in the devitrified glass performance of this temperature range, therefore can carry out quickly
It is cooling, such as directly rouse cold wind and be rapidly cooled to reduce energy consumption, which can be 5~10 DEG C/min.
Mentioning titanium slag containing chlorine may include the following ingredient according to mass fraction meter: 28~33%CaO, 20~25%SiO2、10
~14%Al2O3, 2~7%MgO, 2~10%TiO2, 2~4%Fe2O3, 2~5%Cl element.Cinder field accumulation mentions titanium slag containing chlorine
The content of middle water is larger with seasonal effect by ambient humidity, for example, proposing the water content in titanium slag containing chlorine in humidity biggish summer
Up to 8%~10%, and in humidity lesser autumn, water content also has 6~8%.
The water in titanium slag is mentioned containing chlorine with moisture absorption due to mentioning titanium slag containing chlorine, such as mentions in titanium slag containing chlorine and not being gone by drying
The water removed, and in preprocessing process the secondary moisture absorption water, binder can be played the role of in preprocessing process, meanwhile,
The cementation as caused by water also forms the effect of granulation so that little particle generates agglomeration, and granulation process is practical
Upper is exactly by tiny powder granule by cementation, and aggregation forms bulky grain.
The above method may further comprise the step of: the gas generated to the heat treatment stages and be collected and condense, with recycling
Chloride may include chloride gas in gas, and chloride may include chlorate of potassium, sodium, such as sodium chloride, potassium chloride etc..
Wherein, can emphasis to first heating period (being heated to 800~1000 DEG C of stage from room temperature) and first holding stage
The gas that (800~1000 DEG C of holding stages) generate is collected and condenses, this is because when temperature is more than after 1000 DEG C,
By the cooling content for being recovered to chlorine with regard to few, whole chlorine 1~5% are only accounted for.Wherein, the temperature of condensation is 400~500 DEG C, cold
Solidifying temperature control can enable chloride gas obtain sufficiently condensing precipitating in the range, utmostly obtain the powder of aggregation.
For example, when heat treatment process carries out in tunnel oven, in the row of the low-temperature heat section (being heated to 800~1000 DEG C) of tunnel oven
Gas collection and condensing unit are added in feed channel, condensation temperature is set in 400~500 DEG C, for recycling chloride.It is heating
In the process, chloride volatilizees from green body, chloride gas is evacuated in exhaust pipe rapidly by draft mechanism, exhaust pipe used
Road can be the pipeline of resistance to acid and alkali gas attack, chlorination when gas flows to the Near Pipelines with condensing unit, in gas
Object forms aggregation after condensing and is attached on tube wall, while settable reciprocation type scrapper conveyor carries out cycle operation on tube wall, clearly
It sweeps in the collecting bag below aggregation to pipeline, can get the chlorides powder products such as potassium sodium, the innocuous gas after condensation process
It is introduced in kiln by air-introduced machine, on the one hand can be used in this way to the waste heat of gas, on the other hand can make remaining chlorination
Object gas absorption is again introduced into exhaust pipe on green body to be heated during heating, and then obtains further
Purification.For example, the outlet end of exhaust pipe may be provided at the entrance in low-temperature heat area, to the base that will enter low-temperature heat area
Body is preheated.
Exemplary embodiments mentioned above for a better understanding of the present invention illustrates below with reference to specific example containing chlorine
Mention the devitrified glass that titanium slag is primary raw material.
It is specific the preparation method is as follows:
1) it will contain that chlorine mentions titanium slag and cullet is put into broken, grinding, classification after 105 DEG C of dry indoor seasoning 8h, then press
Mass percent is to mention titanium slag 85%, cullet 15% containing chlorine to carry out weighing cooperation, takes the powder that granularity is 45 μm as base
Use powder.
2) 45 μm of base powder tilings are taken to put into mold, using press machine, in 255kgf/cm2Pressure under, pressure maintaining
30s progress is dry-pressing formed, then demoulds, and obtains devitrified glass green body.Granulating agent is not added during devitrified glass blank forming
With binder.
3) devitrified glass green body is put into tunnel oven, sets heat treatment process and parameter, specifically: with 10 DEG C/min's
Heating rate rises to 850 DEG C by room temperature, keeps the temperature 60min；Then with the heating rate of 3 DEG C/min, 1130 DEG C are risen to by 850 DEG C,
Keep the temperature 90min；Then 350 DEG C are slowly cooled to, rate of temperature fall is 4 DEG C/min；Then 80 DEG C are quickly cooled to by 350 DEG C, drop
Warm 10 DEG C/min of rate；It takes out and polishes after cooling, obtain crystallized glass article after trimming.It is opened when room temperature is to 850 DEG C
The gas collection and condensing unit of tunnel oven, condensation temperature are set as 450 DEG C.To in temperature-rise period green body generate chloride into
Row is collected, and collection process is same as above, and then obtains potassium na chloride powder.
Its principal crystalline phase of obtained crystallized glass article is diopside phase, and secondary crystal phase is aspidelite phase (see Fig. 1).To the crystallite
Glass is tested for the property, and the volume density of crystallized glass article is 2.74g/cm after tested3, water absorption rate 0.09%, pressure resistance
Degree is 131MPa, acid resistance 98.5%, alkali resistance 97%.
In conclusion the present invention has significantly compared with the existing technology using proposing the method that titanium slag prepares devitrified glass containing chlorine
The progress of property, its advantages are as follows:
1) to mention titanium slag as primary raw material containing chlorine in the present invention, proposing titanium slag utilization rate containing chlorine can be 85% or more.
2) devitrified glass properties of the invention are higher than lithotome, can be used as high-grade construction decoration material, technique carving
Quarter and ceramic material etc..
3) present invention mentions titanium slag room temperature hygroscopic properties using containing chlorine, viscous without addition during devitrified glass blank forming
Tie agent or granulating agent.
4) devitrified glass of the invention can be directly burnt at a lower temperature, be saved during preparing devitrified glass
Energy consumption.
Although those skilled in the art should be clear above by combining exemplary embodiment to describe the present invention
Chu can carry out exemplary embodiment of the present invention each without departing from the spirit and scope defined by the claims
Kind modifications and changes.
Claims (10)
1. a kind of raw material includes the devitrified glass for mentioning titanium slag containing chlorine, which is characterized in that the devitrified glass includes glass phase and micro-
Crystal phase, the mass fraction of the glass phase are 80~85%, and the mass fraction of the crystallite phase is 15~20%, wherein
The crystallite phase includes that mass ratio is (95~97): the diopside phase and aspidelite phase of (3~5).
2. raw material according to claim 1 includes the devitrified glass for mentioning titanium slag containing chlorine, which is characterized in that the crystallite phase
Form includes column and sheet.
3. raw material according to claim 2 includes the devitrified glass for mentioning titanium slag containing chlorine, which is characterized in that the columnar micro
The length of phase is 1.5~3.5 μm, and width is 0.4~1 μm, and the length of the sheet-like crystallite phase is 2.3~3 μm, width is 1.1~
1.4μm。
4. raw material according to claim 1 includes the devitrified glass for mentioning titanium slag containing chlorine, which is characterized in that the devitrified glass
In further include stomata, the stomata includes the gap between each crystal phase and/or the gap between the glass phase and crystallite phase.
5. raw material according to claim 4 includes the devitrified glass for mentioning titanium slag containing chlorine, which is characterized in that in devitrified glass
In, the volume accounting of the stomata is 4% or less.
6. raw material according to claim 4 includes the devitrified glass for mentioning titanium slag containing chlorine, which is characterized in that the hole of the stomata
Diameter is 0.1~0.6 μm.
7. raw material according to claim 1 includes the devitrified glass for mentioning titanium slag containing chlorine, which is characterized in that the devitrified glass
Including the following ingredient according to mass percent meter:
27~30%CaO, 33~36%SiO2, 10~13%Al2O3, 7~9%TiO2, 3~5%Fe2O3, 5~7%MgO, 2~
3%R2O, wherein R2O includes Na2O and K2At least one of O.
8. raw material according to claim 1 includes the devitrified glass for mentioning titanium slag containing chlorine, which is characterized in that the devitrified glass
Volume density be 2.60~2.8g/cm3, water absorption rate is 0.3% hereinafter, compression strength is 102~140MPa.
9. raw material according to claim 1 includes the devitrified glass for mentioning titanium slag containing chlorine, which is characterized in that the devitrified glass
Acid resistance be 96% or more, alkali resistance be 97% or more.
10. raw material according to claim 1 includes the devitrified glass for mentioning titanium slag containing chlorine, which is characterized in that the crystallite glass
Glass includes the devitrified glass being prepared by the following method out:
To mention titanium slag and cullet as raw material containing chlorine, raw material is pre-processed, base powder is obtained, wherein contains chlorine in raw material
The mass fraction of titanium slag is mentioned 85% or more；
Base pressed by powder is formed, green body is obtained；
The green body is heated to 800~1000 DEG C, keeps the temperature to promote green body nucleation and crystallization, is again heated to 1100~1200 DEG C of burnings
Knot is cooled down after the completion of to be sintered, obtains devitrified glass.
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| CN201811344111.9A CN109279783B (en) | 2018-11-13 | 2018-11-13 | Microcrystalline glass with raw materials including chlorine-containing titanium extraction slag |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114230184A (en) * | 2021-12-30 | 2022-03-25 | 武汉理工大学 | Microcrystalline glass using liquid titanium slag as main raw material and preparation method thereof |
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