CN101544502B - Anorthite light weight refractory and preparation method thereof - Google Patents
Anorthite light weight refractory and preparation method thereof Download PDFInfo
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- CN101544502B CN101544502B CN2009100617852A CN200910061785A CN101544502B CN 101544502 B CN101544502 B CN 101544502B CN 2009100617852 A CN2009100617852 A CN 2009100617852A CN 200910061785 A CN200910061785 A CN 200910061785A CN 101544502 B CN101544502 B CN 101544502B
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention relates to anorthite light weight refractory and a preparation method thereof. The preparation method comprises the following steps: taking cold state tailings after the treatment of titanium-containing slag through the patent technology of 'a method for preparing titanium and titanium alloy through titanium-containing slag'(ZL2005100119664.3) as raw material, adding 20 to 50 weight percent of silica, 0 to 60 weight percent of clay and 0 to 40 percent of grammite, carrying out the mixed grinding of the raw materials till the particle size is less than 0.063mm, adding saw dust which is 10 to 40 weight percent of the mixture or polystyrene ball which is 1 to 5 weight percent of the mixture, and then adding 10 to 70 weight percent of water, mixing the raw materials evenly for forming; or adding water which is 20 to 60 percent of the mixture to prepare slurry, adopting a foaming method, and carrying out mechanical agitation for foaming and cast forming; and finally drying the formed ingot, and calcining the ingot at a temperature of between 1,200 and 1,400 DEG C to obtain the anorthite light weight refractory. As the tailings after titanium extraction are taken as the raw material, the method has low cost and environmental friendliness. In addition, the method adds more than one of the clay, the silica and the grammite for component regulation, and has a simple process.
Description
Technical field
The invention belongs to the anorthite material technical field.Relate in particular to a kind of Anorthite light weight refractory and preparation method thereof.
Background technology
Lime feldspar is one of the widest mineral of distributed in nature, and its chemical formula is CaOAl
2O
32SiO
2, fusing point is 1550 ℃.Because lime feldspar and albite are the perfect isomorphism existence, purified lime feldspar is enrichment of ore-forming seldom but.Even compare in the mineral reserve of enrichment,, also bring very big difficulty, so the lime feldspar that is adopted in the industry all is a synthetic to ore dressing because the physical properties of lime feldspar and other associated mineral is more approaching at lime feldspar.
The lime feldspar material has very low thermal conductivity, low thermal expansivity and stronger alkali-resistivity steam erosive ability, and anorthite material is usually as the raw material of preparation Anorthite light weight refractory.
The lime feldspar light fire brick is to study one of maximum kind in the lime feldspar fire resistant materials in recent years.The lime feldspar light fire brick has the excellent effect of anti-carbon containing reducing atmosphere, thermal shock resistance and heat-proof quality.Selected for use in the Industrial Stoves of industry kilns such as the pottery of developed country such as West Europe, Japan, chemical industry, petrochemical industry morely this material as thermofin or as working temperature at the fire-resistant working lining below 1300 ℃; Domestic then most dependence on import is so cost is higher.
In addition, a kind of " utilizing Ti-containing slag to prepare the method for titanium or titanium alloy " handles Ti-containing slag through the melting heat reduction method, can prepare metal titanium or titanium alloy.But carrying in a large number how further rationally tailings behind the titanium utilize is a problem demanding prompt solution.
Summary of the invention
The present invention is intended to address the above problem, and purpose provides that a kind of cost is low, environmental friendliness, technology is simple and the Anorthite light weight refractory of resources effective utilization and preparation method thereof.
Be to realize above-mentioned purpose, the present invention be a raw material with " carry titanium after tailings ", directly it is carried out composition adjustment, and carries out suitable processes and make Anorthite light weight refractory.Described " carry titanium after tailings ", be meant by " utilizing Ti-containing slag to prepare the method for titanium or titanium alloy " (ZL200510019664.3) patent of invention technical finesse Ti-containing slag and extract titanium or titanium alloy after, resulting tailings.Be about to TiO
2Content is the titaniferous blast-furnace slag of 10～90wt% or the Ti-containing slag that other smelting processes produce; The metallic aluminium, 0～40% iron and 0～20% the magnesium that add 0～50% carbon, 0～40wt% are reductive agent; The add-on of reductive agent is not zero simultaneously; Carry out the melting heat reduction after mixing, obtain titanium or titanium alloy, all the other are the tailings behind the extraction titanium alloy.
The technical scheme that the present invention adopts is specifically:
Be raw material earlier, add the silica of 20～50wt%, the clay of 0～60wt% and 0～40% wollastonite, above-mentioned raw materials is mixed being finely ground to granularity with admixture, formation fine grinding compound less than 0.063mm with the cold conditions tailings of carrying behind the titanium;
Add then above-mentioned fine grinding compound 10～40wt% sawdust or 1～5wt% gather light ball, add the water of above-mentioned fine grinding compound 10～70wt% again, mix moulding; Or add the water furnishing mud of above-mentioned fine grinding compound 20～60%, adopt foaming, mechanical stirring foaming, casting;
At last that shaping blank is dry, under 1200～1400 ℃ of conditions, calcine, obtain Anorthite light weight refractory.
In the present technique scheme: described moulding or for compression moulding or be plasticity extrusion moulding or casting for ramming process or after being furnishing mud, or be the foaming casting; The described granularity of carrying the cold conditions tailings behind the titanium is less than 0.1mm; The granularity of silica, clay and wollastonite is less than 0.088mm; Described granularity of gathering light ball is less than 5mm; The granularity of sawdust is less than 0.5mm.
Owing to adopt technique scheme, the present invention is a raw material with the tailings of carrying behind the titanium, thereby cost is low, environmental friendliness; In addition, carry out the composition adjustment through more than one materials that add in clay, silica, the wollastonite, technology is simple.
Description of drawings
Fig. 1 is the X ray diffracting spectrum of a kind of Anorthite light weight refractory of the present invention's preparation;
Fig. 2 is a kind of Anorthite light weight refractory of the present invention's preparation.
Embodiment
Below in conjunction with embodiment the present invention being further described, is not the restriction to its protection domain.
This embodiment is a raw material with " carry titanium after tailings ", directly it is carried out the composition adjustment, and carries out suitable processes and make Anorthite light weight refractory." carry titanium after tailings " be meant by " utilizing Ti-containing slag to prepare the method for titanium or titanium alloy " (ZL200510019664.3) patent of invention technical finesse Ti-containing slag and extract titanium or titanium alloy after, resulting tailings.Be about to TiO
2Content is the titaniferous blast-furnace slag of 10～90wt% or the Ti-containing slag that other smelting processes produce; The metallic aluminium, 0～40% iron and 0～20% the magnesium that add 0～50% carbon, 0～40wt% are reductive agent; The add-on of reductive agent is not zero simultaneously; Carry out the melting heat reduction after mixing, obtain titanium or titanium alloy, all the other are the tailings behind the extraction titanium alloy.
Tailings staple behind the extraction titanium alloy that this embodiment adopts is: CaO is 0～28wt%, SiO
2Be 2～6wt%, Al
2O
3Be that 46～58wt%, MgO are 4～8wt%.
For not being repeated in this description in an embodiment; The unified narration of physical parameter of the admixture that earlier institute among the embodiment will be related to is as follows: described moulding or for compression moulding or for the plasticity extrusion moulding or be ramming process or be casting behind the furnishing mud, or be the foaming casting; The described granularity of carrying the cold conditions tailings behind the titanium is less than 0.1mm; The granularity of silica, clay and wollastonite is less than 0.088mm; Described granularity of gathering light ball is less than 5mm; The granularity of sawdust is less than 0.5mm.
Embodiment 1
A kind of preparation method of Anorthite light weight refractory: be raw material earlier with the cold conditions tailings of carrying behind the titanium; Add the silica of 20～50wt%, the clay of 2～60wt% and 4～40% wollastonite; Place the ball mill mixing to be finely ground to granularity above-mentioned raw materials and admixture, constitute the fine grinding compound less than 0.063mm.
Add the sawdust of above-mentioned fine grinding compound 10～40wt% and the water of 10～70wt% then, mix moulding; Calcine under 1200～1400 ℃ of conditions dry back, obtains Anorthite light weight refractory.
Embodiment 2
A kind of preparation method of Anorthite light weight refractory: be raw material earlier, add the silica of 20～50wt%, above-mentioned raw materials is mixed being finely ground to granularity with admixture, formation fine grinding compound less than 0.063mm with the cold conditions tailings of carrying behind the titanium.
All the other are with embodiment 1.
Embodiment 3
A kind of preparation method of Anorthite light weight refractory: be raw material earlier with the cold conditions tailings of carrying behind the titanium; Add the silica of 20～50wt% and the clay of 2～60wt%; Above-mentioned raw materials and admixture mixing are finely ground to granularity less than 0.063mm, constitute the fine grinding compound.
All the other are with embodiment 1.
Embodiment 4
A kind of preparation method of Anorthite light weight refractory: be raw material earlier with the cold conditions tailings of carrying behind the titanium; Add the silica of 20～50wt% and 2～40% wollastonite; Above-mentioned raw materials and admixture mixing are finely ground to granularity less than 0.063mm, constitute the fine grinding compound.
All the other are with embodiment 1.
Embodiment 5
A kind of preparation method of Anorthite light weight refractory: in embodiment 1 described fine grinding compound, add gathering of 1～5wt% light ball and the water of 10～70wt%; Mix; Moulding, calcine under 1200～1400 ℃ of conditions dry back, obtains Anorthite light weight refractory.
Embodiment 6
A kind of preparation method of Anorthite light weight refractory: in embodiment 2 described fine grinding compounds, add gathering of 1～5wt% light ball and the water of 10～70wt%; Mix; Moulding, calcine under 1200～1400 ℃ of conditions dry back, obtains Anorthite light weight refractory.
Embodiment 7
A kind of preparation method of Anorthite light weight refractory: in embodiment 3 described fine grinding compounds, add gathering of 1～5wt% light ball and the water of 10～70wt%; Mix; Moulding, calcine under 1200～1400 ℃ of conditions dry back, obtains Anorthite light weight refractory.
Embodiment 8
A kind of preparation method of Anorthite light weight refractory: in embodiment 4 described fine grinding compounds, add gathering of 1～5wt% light ball and the water of 10～70wt%; Mix; Moulding, calcine under 1200～1400 ℃ of conditions dry back, obtains Anorthite light weight refractory.
Embodiment 9
A kind of preparation method of Anorthite light weight refractory: in embodiment 1 described fine grinding compound, add 20～60% water furnishing mud; Adopt foaming, mechanical stirring foaming, casting; Calcine under 1200～1400 ℃ of conditions dry back, obtains Anorthite light weight refractory.
A kind of preparation method of Anorthite light weight refractory: in embodiment 2 described fine grinding compounds, add 20～60% water furnishing mud; Adopt foaming, mechanical stirring foaming, casting; Calcine under 1200～1400 ℃ of conditions dry back, obtains Anorthite light weight refractory.
Embodiment 11
A kind of preparation method of Anorthite light weight refractory: in embodiment 3 described fine grinding compounds, add 20～60% water furnishing mud; Adopt foaming, mechanical stirring foaming, casting; Calcine under 1200～1400 ℃ of conditions dry back, obtains Anorthite light weight refractory
Embodiment 12
A kind of preparation method of Anorthite light weight refractory: in embodiment 4 described fine grinding compounds, add 20～60% water furnishing mud; Adopt foaming, mechanical stirring foaming, casting; Calcine under 1200～1400 ℃ of conditions dry back, obtains Anorthite light weight refractory
This embodiment is a raw material with the tailings of carrying behind the titanium, thereby cost is low, environmental friendliness; In addition, carry out the composition adjustment through more than one materials that add in clay, silica, the wollastonite, technology is simple.The X ray diffracting spectrum of prepared a kind of Anorthite light weight refractory is as shown in Figure 1, and its macroporous structure is as shown in Figure 2.
Claims (5)
1. the preparation method of an Anorthite light weight refractory is with TiO
2Content is the titaniferous blast-furnace slag of 10～90wt% or the Ti-containing slag that other smelting processes produce; The metallic aluminium, 0～40% iron and 0～20% the magnesium that add 0～50% carbon, 0～40wt% are reductive agent, and the add-on of reductive agent is not zero simultaneously, carries out the melting heat reduction after mixing; Obtain titanium or titanium alloy; All the other is characterized in that for extracting the tailings behind the titanium alloy: the cold conditions tailings to carry behind the titanium is a raw material, adds the silica of 20～50wt%, the clay of 0～60wt% and 0～40% wollastonite; Above-mentioned raw materials and admixture mixing are finely ground to granularity less than 0.063mm, constitute the fine grinding compound;
Add then above-mentioned fine grinding compound 10～40wt% sawdust or 1～5wt% gather light ball, add the water of above-mentioned fine grinding compound 10～70wt% again, mix moulding; Or add the water furnishing mud of above-mentioned fine grinding compound 20～60%, adopt foaming, mechanical stirring foaming, casting;
At last that shaping blank is dry, under 1200～1400 ℃ of conditions, calcine, obtain Anorthite light weight refractory.
2. the preparation method of Anorthite light weight refractory according to claim 1; It is characterized in that described moulding or for compression moulding or for the plasticity extrusion moulding or for ramming process or be casting behind the furnishing mud, or be the foaming casting.
3. the preparation method of Anorthite light weight refractory according to claim 1 is characterized in that the described granularity of carrying the cold conditions tailings behind the titanium is less than 0.1mm; The granularity of silica, clay and wollastonite is less than 0.088mm.
4. the preparation method of Anorthite light weight refractory according to claim 1 is characterized in that described granularity of gathering light ball is less than 5mm; The granularity of sawdust is less than 0.5mm.
5. according to the prepared Anorthite light weight refractory of preparation method of each described Anorthite light weight refractory in the claim 1～4.
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| CN2009100617852A CN101544502B (en) | 2009-04-24 | 2009-04-24 | Anorthite light weight refractory and preparation method thereof |
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| CN2009100617852A CN101544502B (en) | 2009-04-24 | 2009-04-24 | Anorthite light weight refractory and preparation method thereof |
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| CN101544502B true CN101544502B (en) | 2012-03-21 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866144B (en) * | 2014-04-03 | 2016-05-25 | 武汉科技大学 | A kind of preparation method of barium titanium silicon iron alloy |
| CN104761270B (en) * | 2015-03-23 | 2017-03-22 | 莱州明发隔热材料有限公司 | An anorthite intermediate used as an industrial kiln high-temperature heat-insulating material |
| CN105347816B (en) * | 2015-10-31 | 2018-06-12 | 上海亚都塑料有限公司 | A kind of preparation method that plastic refractory is prepared using titanium-containing blast furnace slag |
| CN105461346A (en) * | 2015-11-23 | 2016-04-06 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for preparing porous material by use of blast furnace slag titanium-extracting tailings |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1424280A (en) * | 2003-01-14 | 2003-06-18 | 北京科技大学 | Light refractory bricks |
| CN101306919A (en) * | 2008-07-02 | 2008-11-19 | 东北大学 | Process for preparing foamed glass form titan-containing blast furnace slag |
| CN101323503A (en) * | 2008-07-22 | 2008-12-17 | 东北大学 | Method for preparing microcrystalline foamed glass by titanium-containing blast furnace slag |
| CN100443603C (en) * | 2005-10-26 | 2008-12-17 | 武汉科技大学 | Method of preparing titanium and titanium alloy using titanium containing furnace clinker |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1424280A (en) * | 2003-01-14 | 2003-06-18 | 北京科技大学 | Light refractory bricks |
| CN100443603C (en) * | 2005-10-26 | 2008-12-17 | 武汉科技大学 | Method of preparing titanium and titanium alloy using titanium containing furnace clinker |
| CN101306919A (en) * | 2008-07-02 | 2008-11-19 | 东北大学 | Process for preparing foamed glass form titan-containing blast furnace slag |
| CN101323503A (en) * | 2008-07-22 | 2008-12-17 | 东北大学 | Method for preparing microcrystalline foamed glass by titanium-containing blast furnace slag |
Non-Patent Citations (1)
| Title |
|---|
| 顾幸勇等.工业废石膏在研制新型隔热材料中的应用.《中国陶瓷》.2000,第36卷(第04期),8-12. * |
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