CN1613806A - Microcrystallizing glass for construction and produced from metal flume and its production - Google Patents
Microcrystallizing glass for construction and produced from metal flume and its production Download PDFInfo
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- CN1613806A CN1613806A CN 200410087656 CN200410087656A CN1613806A CN 1613806 A CN1613806 A CN 1613806A CN 200410087656 CN200410087656 CN 200410087656 CN 200410087656 A CN200410087656 A CN 200410087656A CN 1613806 A CN1613806 A CN 1613806A
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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
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
- C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
-
- 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
- C03C10/0036—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 SiO2, Al2O3 and a divalent metal oxide as main constituents
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Abstract
A metal flume building microcrystalline glass and its production are disclosed. The base glass consists of SiO2 50-60wt%, Al2O3 6-9wt%, CaO 11-13wt%, MgO 3-8wt%, K2O+Na2O 3-8wt%, FeO+Fe2O3 2-8wt%. With TiO2 as crystal nucleus agent, the content of TiO2 is 2-4%, the content of Cr2O3 is 1-2%. Its advantages include low cost, and high mechanical strength, wear-resisting performance and corrosion resistance.
Description
Technical field
The present invention relates to a kind of building microcrystalline glass, particularly relate to a kind of with the industrial residue metal tailings as high-performance building devitrified glass of main raw material preparation and preparation method thereof, both belonged to the key technology that metal tailings utilizes, also belong to simultaneously a kind of high-grade construction decoration material, being mainly used in ground, decorating inner and external walls, partition and building block etc. in the building, is the best substitute of lithotome.
Background technology
At present, scorification is mostly adopted in the preparation that generally is used for the devitrified glass of building materials field, raw material is substantially based on the pure raw material of glass, the nucleus agent is all outer mixes, the principal crystalline phase of separating out is β-wollastonite, and this preparation method can make glass smelting temperature drift (about 1600 ℃), difficult forming, product cost is higher, and this also is one of outstanding problem that still exists in devitrified glass research and the production field.For this reason, many investigators have carried out the research that other approach prepare building microcrystalline glass.From starting material, beginning is by adopting the pure raw material of glass to developing for the main raw material direction with the industrial residue; On technology, develop to sol-gel novel process direction by traditional scorification.Aspect the research for preparing building microcrystalline glass with industrial residue as main raw material, a large amount of research is to concentrate on several industrial residues such as mine tailing, flyash, coal gangue and slag, but no matter adopt which kind of industrial residue, from the principal crystalline phase of separating out, remain β-wollastonite, recrystallization temperature is higher, and product cost is higher.Sol-gel technology is the focus in current silicate and the glasswork, and its technical process is:
Compare with traditional scorification, the advantage that adopts sol-gel technology to prepare building microcrystalline glass is: can prepare high strength and highly purified material under lower temperature, and can enlarge compositing range.But the greatest problem that this method exists also is an open question still now, promptly prepares block gel difficulty by colloidal sol, and the problem that particularly ftractures is still unresolved.Therefore, sol-gel method prepares the technology prematurity still of building microcrystalline glass, and suitability for industrialized production still is unrealized.This shows, can replace the pure raw material of glass with industrial residue, traditional suitability for industrialized production scorification for many years of realizing is improved, particularly solve the glass melting temperature height, the problem of difficult forming with further reduction product cost, increases the market competitiveness, expanding the scale of production is the most real feasible approach, also is simultaneously to realize economic benefit, social benefit and the most significant effective way of environmental benefit.
Summary of the invention
The objective of the invention is to solve present scorification and prepare ubiquitous glass melting temperature height in the building microcrystalline glass, difficult forming, thereby cause energy consumption to increase, finally make key technical problems such as product cost raising, improve by research, provide a kind of novel high-performance building devitrified glass, this kind building microcrystalline glass is as main raw material with metal tailings, adopt compound nucleus agent (major ingredient is taken from the agent of part nucleus), the principal crystalline phase of separating out is a diopside, can make glass melting temperature reduce to 1400~1450 ℃ from about 1600 ℃, and the crystallization rate of goods improves, and product has high physical strength, good wear resistance, erosion resistance and fastness to efflorescence.
The technical solution that the present invention provides is: the main chemical compositions of metal tailings is SiO
2, Al
2O
3, CaO, MgO, satisfy the chemical ingredients requirement of preparation glass, can be used as the raw material of preparation devitrified glass, and, product cost is reduced significantly because of metal tailings is an industrial residue.By adopting the compound of nucleus agent that lattice parameter and diopside be complementary and nucleus agent, making traditional building materials field separate out β-wollastonite with devitrified glass is principal crystalline phase, change into and separate out a kind of principal crystalline phase-diopside lower than wollastonite recrystallization temperature, paracrystalline phase is a wollastonite, can reduce glass melting temperature on the one hand, because of diopside has good fastness to efflorescence and high physical strength, product performance are improved on the other hand.The main composition of Microcrystallizing glass for construction and produced from metal flume comprises metal tailings, adjusts oxide compound and nucleus agent, and its characteristics are to adopt compound nucleus agent, and the agent of part nucleus takes from major ingredient, and by massfraction, the chemical constitution of its parent glass is: SiO
250~60%; Al
2O
36~%; CaO 11~13%; MgO3~8%; K
2O+Na
2O 3~8%; FeO+Fe
2O
32~8%.With TiO
2And Cr
2O
3Do the nucleus agent, TiO
2Content is 2~4%, Cr
2O
3Content is 1~2%.
The preparation technology of the Microcrystallizing glass for construction and produced from metal flume that the present invention provides is:
The present invention at first makes compound with metal tailings, adjustment oxide compound, nucleus agent behind mixing, grinding (granularity 200-300 order), with the compound fusion, temperature is 1400~1450 ℃, and soaking time is 0.5~1 hour; Anneal then, temperature is 680~700 ℃, and soaking time is 15~30 minutes; Carry out coring again and handle, temperature is 750~770 ℃ (are raw material with torticollis mountain iron tailings) or 850~870 ℃ (is raw material with the Xincheng Gold Mine mine tailing), and soaking time is 60~75 minutes; Then carry out crystallization and handle, temperature is 810~830 ℃ (are raw material with torticollis mountain iron tailings) or 890~910 ℃ (is raw material with the Xincheng Gold Mine mine tailing), and soaking time is 75~90 minutes; After naturally cooling (air cooling), polish at last, cut finished product.
The raw material of this high-performance metal tailings construction nucleated glass is formed and to be pressed massfraction and can be torticollis mountain iron tailings 60~65%; Rhombspar 3~%; Wingdale 10~15%; Kaolin 5~8%; K
2SO
42~4%; K
2CrO
43~5%; ZnO 0.5~1.0%; CaF
20.5~1.0%; S+C 0.5~1.0%; Bone meal 0.5~1.0%; TiO
21.5~3.5%.
The raw material of this high-performance metal tailings construction nucleated glass is formed and to be pressed massfraction and can be Xincheng Gold Mine mine tailing 60~65%; Rhombspar 6~9%; Wingdale 10~14%; Feldspar 3~5%; K
2SO
42~4%; K
2CrO
43~5%; ZnO 0.5~1.0%; CaF
20.5~1.0%; S+C 0.5~1.0%; Bone meal 0.5~1.0%; Sodium tetraborate 0.8~1.2%; TiO
21.5~2%.
Compared with prior art, the beneficial effect of this Microcrystallizing glass for construction and produced from metal flume that the present invention provides is: the glass smelting temperature can be reduced to 1400~1450 ℃ from 1600 ℃, greatly reduce energy consumption, thereby reduced product cost significantly; Major ingredient is partly taken from the nucleus agent, has reduced the outer consumption of mixing the nucleus agent, can further reduce product cost; Separating out with the diopside is the devitrified glass of principal crystalline phase, and physical strength, wear resistance, erosion resistance, the fastness to efflorescence of devitrified glass are further improved; Utilize the industrial residue metal tailings in a large number, the metal tailings volume reaches more than 65% (massfraction) in the batching, and the exploitation secondary resource reduces environmental pollution, environmental benefit and obvious social benefit; Easy construction, the construction loss is little.
Embodiment
Below in conjunction with embodiment concrete technical scheme of the present invention is described further:
Embodiment 1
Present embodiment provides a kind of high-performance metal tailings construction nucleated glass, and its raw material consists of torticollis mountain iron tailings, adjusts oxide compound and TiO
2And Cr
2O
3Compound nucleus agent, wherein the add-on of each constitutive material is (massfraction): torticollis mountain iron tailings 65%; Rhombspar 3%; Wingdale 14%; Kaolin 7%; K
2SO
43%; K
2CrO
43.1%; ZnO 0.9%; CaF
20.7%; S+C 0.9%; Bone meal 0.6%; TiO
21.8%.Acting as of each component: torticollis mountain iron tailings is basic raw material of producing building microcrystalline glass, and SiO mainly is provided
2, Al
2O
3, chemical ingredientss such as CaO, MgO; Rhombspar mainly is the deficiency of MgO in the compensating bar mine tailing; Wingdale mainly is the deficiency of CaO in the compensating bar mine tailing; Kaolin mainly is Al in the compensating bar mine tailing
2O
3Deficiency; K
2SO
4Mainly provide K
2O is to promote the formation of microlitic structure; K
2CrO
4Mainly provide Cr
2O
3, as the nucleus agent; ZnO realizes micritization when the less nucleus agent volume in order to guarantee; CaF
2Mainly be in order to reduce crystallization activation energy, to promote crystallization; The effect of S and C is for FeO in the feed glass and Fe
2O
3Ratio, and keep certain sulfide content, promote micritization; Bone meal mainly provides P
2O
5, with the reinforcing glass stability of network.
The chemical ingredients of described torticollis mountain iron tailings is (massfraction): SiO
279.10%, Al
2O
32.98%, Fe
2O
35.30%, FeO 4.32%, and CaO 3.40%, and MgO 3.87%, Na
2O 0.43%, K
2O 0.60%.
The chemical ingredients of described rhombspar is (massfraction): CaO 30%, and MgO 22%, SiO
24.0%, Al
2O
33.0%, Fe
2O
30.15%, loss on ignition is 40.85%, i.e. CO
2Loss.
Described kaolinic chemical ingredients is (massfraction): SiO
246.51%, Al
2O
339.53%, H
2O13.96%.
Described bone meal main chemical compositions is (massfraction): CaO 53.42%, P
2O
544.60%, SiO
20.90%, Al
2O
30.34%, Fe
2O
30.12%, MgO 0.62%.
The optimised process process of torticollis mountain iron tailings building microcrystalline glass is: metal tailings, adjustment oxide compound, nucleus agent are made admixtion through combined grinding (granularity 200-300 order), the batch melting heat-up rate is 6 ℃/min, 1450 ℃ of temperature of fusion, be incubated 30 minutes, 680 ℃ of annealing temperatures, be incubated 30 minutes, 760 ℃ of nucleation temperatures, be incubated 75 minutes, 820 ℃ of crystallization temperatures, soaking time 75 minutes, the heat-up rate that is risen to crystallization temperature by nucleation temperature is 3 ℃/min, the devitrified glass of acquisition consist of (massfraction): SiO
258.2%, Al
2O
37.4%, Fe
2O
33.9%, FeO 3.1%, and CaO 12.5%, and MgO 4.0%, K
2O 3.9%, and ZnO 1.0%, CaF
20.8%, S+C 1.0%, Cr
2O
32.0%, TiO
22.0%, P
2O
50.2%.
The physical and chemical index of gained devitrified glass is as follows: density 2.65g/cm
3, water-intake rate 0%, Mohs' hardness 6.0, flexural strength 90~110MPa, acid resistance (1%H
2SO
4) 0.02, alkali resistance (1%NaOH) 0.01, glossiness 90~100.
Embodiment 2
Difference from Example 1 is:
Present embodiment provides a kind of high-performance metal tailings construction nucleated glass, and its raw material consists of the Xincheng Gold Mine mine tailing, adjusts oxide compound and TiO
2And Cr
2O
3Compound nucleus agent, wherein the add-on of each constitutive material is (massfraction): Xincheng Gold Mine mine tailing 65%; Rhombspar 8%; Wingdale 12%; Feldspar 3%; K
2SO
42.6%; K
2CrO
43.5%; ZnO 0.9%; CaF
20.7%; S+C 0.9%; Bone meal 0.6%; Sodium tetraborate 1.0%; TiO
21.8%.Wherein, the Xincheng Gold Mine mine tailing is basic raw material of producing building microcrystalline glass, and SiO mainly is provided
2, Al
2O
3, chemical ingredientss such as CaO, MgO; Feldspar mainly is the SiO that proofreaies and correct in the gold mine tailings
2And Al
2O
3The effect of sodium tetraborate provides Na on the one hand
2O to keep the glass principal crystalline phase constant, improves glasswork and crystallization characteristic, provides B on the other hand
2O
3, can reduce the fusion clarifying temp, reduce melt viscosity.
The chemical ingredients of described Xincheng Gold Mine mine tailing is (massfraction): SiO
278.23%, Al
2O
310.88%, Fe
2O
31.65%, FeO 0.32%, and CaO 1.37%, and MgO 1.14%, K
2O 4.31%, Na
2O 1.69%, and ZnO 0.18%, and PbO 0.23%.
Described feldspar is an albite, and its chemical ingredients is (massfraction): SiO
272.66%, Al
2O
315.79%, Fe
2O
30.48%, CaO 1.23%, K
2O 0.74%, Na
2O 8.70%, TiO
20.4%.
The optimised process process of Xincheng Gold Mine tailings construction nucleated glass is: metal tailings, adjustment oxide compound, nucleus agent are made admixtion through combined grinding (granularity 200-300 order), the batch melting heat-up rate is 6 ℃/min, 1400 ℃ of temperature of fusion, be incubated 60 minutes, 700 ℃ of annealing temperatures, be incubated 15 minutes, 857 ℃ of nucleation temperatures, be incubated 60 minutes, 900 ℃ of crystallization temperatures, soaking time 90 minutes, the heat-up rate that is risen to crystallization temperature by nucleation temperature is 5 ℃/min, the devitrified glass of acquisition consists of (massfraction): SiO
259.4%, Al
2O
38.8%, Fe
2O
32.2%, CaO 11.6%, and MgO 3.1%, K
2O 6.5%, Na
2O 1.0%, and ZnO 1.0%, CaF
20.8%, S+C 1.0%, Cr
2O
32.0%, TiO
22.0%, P
2O
50.3%, B
2O
30.3%.
The physical and chemical index of gained devitrified glass is as follows: density 2.7g/cm
3, water-intake rate 0%, Mohs' hardness 6.5, flexural strength 100~120MPa, acid resistance (1%H
2SO
4) 0.01, alkali resistance (1%NaOH) 0.01, glossiness 95~100.
Embodiment 3
Be with embodiment 1 and example 2 differences:
Present embodiment provides a kind of high-performance metal tailings construction nucleated glass, and its raw material consists of torticollis mountain iron tailings, adjusts oxide compound and TiO
2And Cr
2O
3Compound nucleus agent, wherein the add-on of each constitutive material is (massfraction): torticollis mountain iron tailings 61%; Rhombspar 5%; Wingdale 15%; Kaolin 8%; K
2SO
42.3%; K
2CrO
42.0%; ZnO 0.9%; CaF
20.9%; S+C 0.9%; Bone meal 0.5%; TiO
23.5%.
The optimised process process of the building microcrystalline glass of this compositing formula is: metal tailings, adjustment oxide compound, nucleus agent are made admixtion through combined grinding (granularity 200-300 order), the batch melting heat-up rate is 5 ℃/min, 1420 ℃ of temperature of fusion, be incubated 45 minutes, 700 ℃ of annealing temperatures, be incubated 25 minutes, 770 ℃ of nucleation temperatures, be incubated 75 minutes, 830 ℃ of crystallization temperatures, soaking time 75 minutes, the heat-up rate that is risen to crystallization temperature by nucleation temperature is 4 ℃/min, the devitrified glass of acquisition consist of (massfraction): SiO
256.5%, Al
2O
36.2%, Fe
2O
33.7%, FeO 3.0%, and CaO 12.9%, and MgO 4.4%, K
2O 3.9%, and ZnO 1.0%, CaF
21.0%, S+C 1.0%, Cr
2O
32.0%, TiO
24.0%, P
2O
50.4%.
The physical and chemical index of gained devitrified glass is as follows: density 2.66g/cm
3, water-intake rate 0%, Mohs' hardness 6.2, flexural strength 90~110MPa, acid resistance (1%H
2SO
4) 0.02, alkali resistance (1%NaOH) 0.01, glossiness 95~100.
In concrete production process, because the metal tailings chemical ingredients difference in the different places of production of different kinds of metals mine tailing and same class, therefore in order to satisfy the requirement of producing, need be at the chemical ingredients of used metal tailings, adopt suitable adjustment oxide compound to be adjusted, make the chemical constitution of parent glass satisfy SiO
250~50%; Al
2O
36~9%; CaO 11~13%; MgO 3~8%; K
2O+Na
2O 3~8%; FeO+Fe
2O
32~8% requirement.In addition also can be by the product specified property to separating out principal crystalline phase kind requirement, by adopting the compound purpose that reaches the predetermined prod performance between suitable nucleus agent and the nucleus agent.
The Microcrystallizing glass for construction and produced from metal flume that the present invention provides is in application, and is identical with granitic constructional method with the lithotome marble, and the application scenario is that construction part is also identical, no particular requirement.
Claims (5)
1. Microcrystallizing glass for construction and produced from metal flume is characterized in that the parent glass composition by massfraction, comprising: SiO
250~60%; Al
2O
36~9%; CaO 11~13%; MgO 3~8%; K
2O+Na
2O 3~8%; FeO+Fe
2O
32~8%, with TiO
2And Cr
2O
3Do the nucleus agent, TiO
2Content is 2~4%, Cr
2O
3Content is 1~2%.
2. Microcrystallizing glass for construction and produced from metal flume according to claim 1 is characterized in that the raw material composition of this high-performance metal tailings construction nucleated glass by massfraction is: torticollis mountain iron tailings 60~65%; Rhombspar 3~6%; Wingdale 10~15%; Kaolin 5~8%; K
2SO
42~4%; K
2CrO
43~5%; ZnO 0.5~1.0%; CaF
20.5~1.0%; S+C 0.5~1.0%; Bone meal 0.5~1.0%; TiO
21.5~3.5%.
3. Microcrystallizing glass for construction and produced from metal flume according to claim 1 is characterized in that the raw material composition of this high-performance metal tailings construction nucleated glass by massfraction is: Xincheng Gold Mine mine tailing 60~65%; Rhombspar 6~9%; Wingdale 10~14%; Feldspar 3~5%; K
2SO
42~4%; K
2CrO
43~5%; ZnO 0.5~1.0%; CaF
20.5~1.0%; S+C 0.5~1.0%; Bone meal 0.5~1.0%; Sodium tetraborate 0.8~1.2%; TiO
21.5~2%.
4. the preparation method of Microcrystallizing glass for construction and produced from metal flume according to claim 2 is characterized in that the technological process of torticollis mountain iron tailings building microcrystalline glass is:
The batch melting heat-up rate is 5~6 ℃/min, 1400~1450 ℃ of temperature of fusion, be incubated 30~60 minutes, 680~700 ℃ of annealing temperatures, soaking time are 15~30 minutes, 750~770 ℃ of nucleation temperatures, be incubated 60~75 minutes, 810~830 ℃ of crystallization temperatures, soaking time 75~90 minutes, the heat-up rate that is warming up to crystallization temperature by nucleation temperature is 3~5 ℃/min.
5, the preparation method of Microcrystallizing glass for construction and produced from metal flume according to claim 3 is characterized in that the technological process of Xincheng Gold Mine tailings construction nucleated glass is:
The batch melting heat-up rate is 5~6 ℃/min, 1400~1450 ℃ of temperature of fusion, be incubated 60~75 minutes, 680~700 ℃ of annealing temperatures, soaking time are 15~30 minutes, 850~870 ℃ of nucleation temperatures, be incubated 60~75 minutes, 890~910 ℃ of crystallization temperatures, soaking time 75~90 minutes, the heat-up rate that is warming up to crystallization temperature by nucleation temperature is 3~5 ℃/min.
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