CN107601906A - A kind of method that foam glass is produced using molybdic tailing - Google Patents
A kind of method that foam glass is produced using molybdic tailing Download PDFInfo
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- CN107601906A CN107601906A CN201711095856.1A CN201711095856A CN107601906A CN 107601906 A CN107601906 A CN 107601906A CN 201711095856 A CN201711095856 A CN 201711095856A CN 107601906 A CN107601906 A CN 107601906A
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- foam glass
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- molybdic tailing
- foaming agent
- glass raw
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Abstract
The invention provides a kind of method that foam glass is produced using molybdic tailing, including：Molybdic tailing is subjected to dispensing, obtains and forms following frit；Foam glass raw material will be obtained after above-mentioned frit, water quenching；Burnt till after the foam glass raw material is mixed with foaming agent, annealing obtains foam glass.Foam glass rupture strength prepared by method provided by the invention is higher, and thermal conductivity factor is relatively low, has good performance.Result of the test shows that foam glass density prepared by method provided by the invention is 98~140kg/m3, normal temperature thermal conductivity factor is 0.036~0.045W/ (Km), and compression strength is 0.5~3MPa, and hole diameter is 1~4mm.Foam glass compression strength that the present invention is prepared is good, thermal conductivity factor is low, can be used as wall heat insulation material, industrial deep cooling insulation material application.
Description
Technical field
The invention belongs to molybdic tailing reutilization technology field, more particularly to a kind of side that foam glass is produced using molybdic tailing
Method.
Background technology
Molybdic tailing is a kind of industrial waste of molybdenum ore output after excavation, ore dressing.Molybdic tailing is typically with the shape of Tailings Dam
Formula processing, but the problems such as land occupation, waste of resource, pollution environment be present in Tailings Dam.Therefore, it is necessary to be realized to resource of tailings
Comprehensive utilization.
Mainly have to the method for comprehensive utilization of molybdic tailing at present：1st, spoil reclaming；2nd, materials for wall, cement, glass are produced
The construction materials such as product, ceramic, artificial marble, refractory material, aggregate；3rd, fertilizer improved soil is made；4、
Backfill mine worked-out section etc..
Inventor considers, can increase its added value using molybdic tailing as the raw material for preparing foam glass.
The content of the invention
In view of this, it is an object of the invention to provide a kind of method that foam glass is produced using molybdic tailing, the present invention
The foam glass that the method for offer produces to obtain has higher mechanical strength and relatively low thermal conductivity factor.
The invention provides a kind of method that foam glass is produced using molybdic tailing, including：
Molybdic tailing is subjected to dispensing, obtains and forms following frit：
50~75wt% SiO2；
5~9wt% Al2O3；
3~8wt% CaO；
1~4wt% MgO；
8~15wt% Na2O；
1~5wt% K2O；
0.5~3wt% Fe2O3；
1~3wt% MnO2；
1~3wt% BaO；
2~7wt% B2O3；
0~0.5wt% TiO2；
0~0.05wt% SrO；
Foam glass raw material will be obtained after above-mentioned frit, water quenching；
Burnt till after the foam glass raw material is mixed with foaming agent, annealing obtains foam glass.
The present invention prepares foam glass by raw material of molybdic tailing, and the main component of molybdic tailing includes SiO2、Al2O3、Fe2O3、
CaO、MgO、K2O、Na2O、TiO2Deng can be as the raw material for preparing foam glass.
In one embodiment of the invention, the main component of the molybdic tailing is：
60~75wt% SiO2；
10~20wt% Al2O3；
0.1~5wt% CaO；
0.1~5wt% MgO；
1~5wt% Na2O；
1~10wt% K2O；
1~5wt% Fe2O3；
0.1~0.5wt% TiO2；
0.01~0.05wt% SrO；
0.01~0.05wt% MnO2；
The present invention carries out dispensing according to the specific composition of used molybdic tailing, and composition is following：
50~75wt% SiO2；
5~9wt% Al2O3；
3~8wt% CaO；
1~4wt% MgO；
8~15wt% Na2O；
1~5wt% K2O；
0.5~3wt% Fe2O3；
1~3wt% MnO2；
1~3wt% BaO；
2~7wt% B2O3；
0~0.5wt% TiO2；
0~0.05wt% SrO；
Preferably, formed after dispensing as follows：
55~70wt% SiO2；；
6~8wt% Al2O3；
4~7wt% CaO；
2~3wt% MgO；
9~14wt% Na2O；
2~4wt% K2O；
1~2.5wt% Fe2O3；
1.5~2.5wt% MnO2；
1.5~2.5wt% BaO；
3~6wt% B2O3；
0~0.1wt% TiO2；
0.001~0.03wt% SrO；
After dispensing, after obtained frit, water quenching, foam glass raw material is obtained.In the present invention, it is described
Melting temperature is 1400~1500 DEG C, and the time is 5~8h.Obtained glass melt is positioned in cold water after melting and enters water-filling
Quench, obtain foam glass raw material.The granularity of the foam glass raw material is 200~400 mesh.
After obtaining foam glass raw material, it is mixed with foaming agent, burnt till, anneal obtains foam glass afterwards.In this hair
In bright, the foaming agent is calcium carbonate or carbon black, and its dosage is 0.1~0.5wt% of foam glass raw material, is preferably
0.3wt%.The granularity of the foaming agent is 200~800 mesh.
Ball milling is carried out first after foam glass raw material and foaming agent are mixed to reburn into, preferably 6~8h of ball milling.After ball milling,
Firing temperature is warming up to be burnt till.The firing temperature is 850~880 DEG C, and the time is 1.5~2.5h；It is warming up to and burns till temperature
The heating rate of degree is 4~8 DEG C/min.It is annealed after burning till, annealing temperature is 550~580 DEG C, soaking time
For 20~40h.Room temperature is cooled to after insulation, rate of temperature fall is 3~5 DEG C/min.
After annealing obtains foam glass crude green body, it is cut, polished, you can obtains foam glass product.
The present invention is using molybdic tailing as primary raw material, the frit by its dispensing into specific components, is obtained by melting, water quenching
Foam glass raw material, then burn till, anneal after being mixed with foaming agent, you can obtain foam glass.It is prepared by method provided by the invention
Foam glass compression strength it is higher, thermal conductivity factor is relatively low, has good performance.Result of the test shows, provided by the invention
Foam glass density prepared by method is 98~140kg/m3, normal temperature thermal conductivity factor is 0.036~0.045W/ (Km), resistance to compression
Intensity is 0.5~3MPa, and hole diameter is 1~4mm.Foam glass rupture strength that the present invention is prepared is good, thermal conductivity factor
It is low, wall heat insulation material, industrial deep cooling insulation material application can be used as.
Embodiment
Molybdic tailing used derives from Fengning molybdic tailing in following embodiment.
Embodiment 1~3
Dispensing is carried out by primary raw material of molybdic tailing, Fengning molybdic tailing main component is as follows：74.03wt% titanium dioxide
Silicon, 11.74wt% alundum (Al2O3), 0.91wt% calcium oxide, 0.42wt% magnesia, 2.27wt% sodium oxide molybdena,
5.59wt% potassium oxide, 2.56wt% di-iron trioxide, 0.188wt% titanium dioxide, 0.027wt% strontium oxide strontia,
0.025wt% manganese dioxide etc..
The frit composition obtained after dispensing is as shown in table 1：
The glass material formula provided in an embodiment of the present invention of table 1
| Embodiment | SiO2 | Al2O3 | CaO | MgO | Na2O | K2O | Fe2O3 | MnO2 | BaO | B2O3 | TiO2 | SrO | Other |
| 1 | 54.5 | 8.6 | 4.1 | 1.3 | 13.3 | 4.6 | 2.8 | 2.5 | 3.6 | 4.6 | 0.08 | 0.01 | 0.01 |
| 2 | 63.2 | 6.5 | 5.4 | 2.5 | 10.4 | 3.4 | 1.5 | 1.4 | 2.3 | 3.2 | 0.13 | 0.02 | 0.05 |
| 3 | 71.2 | 5.1 | 6.5 | 2.3 | 8.5 | 1.1 | 0.6 | 1.1 | 1.2 | 2.1 | 0.25 | 0.01 | 0.04 |
After obtaining frit, 1450 DEG C of melting 7h are warming up to, obtained glass melt is placed in cold water and enters water-filling
Quench, 200~400 mesh sieves are crossed after grinding and obtain foam glass raw material.
Foam glass raw material is mixed with the calcium carbonate of the 0.3wt% mesh sieve of mistake 300~800, ball milling 7h, with 5 DEG C/min
Speed be warming up to 860 DEG C and carry out burning till 2h.Then 30h is incubated at 560 DEG C, room temperature is cooled to 5 DEG C/min speed, cut
Cut, polish after obtain foam glass.
Performance test is carried out to obtained foam glass, as a result referring to table 2, table 2 is foam prepared by the embodiment of the present invention
The performance data of glass.
The performance data of foam glass prepared by the embodiment of the present invention of table 2
| Embodiment | Density (kg/m3) | Normal temperature thermal conductivity factor (W/ (Km)) | Rupture strength (MPa) |
| 1 | 101 | 0.038 | 1.78 |
| 2 | 97 | 0.032 | 1.98 |
| 3 | 103 | 0.036 | 1.97 |
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (9)
- A kind of 1. method that foam glass is produced using molybdic tailing, it is characterised in that including：Molybdic tailing is subjected to dispensing, obtains and forms following frit：50~75wt% SiO2；5~9wt% Al2O3；3~8wt% CaO；1~4wt% MgO；8~15wt% Na2O；1~5wt% K2O；0.5~3wt% Fe2O3；1~3wt% MnO2；1~3wt% BaO；2~7wt% B2O3；0~0.5wt% TiO2；0~0.05wt% SrO；Foam glass raw material will be obtained after above-mentioned frit, water quenching；Burnt till after the foam glass raw material is mixed with foaming agent, annealing obtains foam glass.
- 2. according to the method for claim 1, it is characterised in that the foaming agent account for the foam glass raw material 0.1~ 0.5wt%.
- 3. according to the method for claim 1, it is characterised in that the foam glass raw material is 200~400 mesh.
- 4. according to the method for claim 1, it is characterised in that the foaming agent is 200~800 mesh.
- 5. according to the method for claim 1, it is characterised in that the melting temperature be 1400~1500 DEG C, the time be 5~ 8h。
- 6. according to the method for claim 1, it is characterised in that the firing temperature be 850~880 DEG C, the time be 1.5~ 2.5h。
- 7. according to the method for claim 1, it is characterised in that the annealing temperature is 550~580 DEG C, and soaking time is 20~40h.
- 8. according to the method for claim 1, it is characterised in that carried out after the foam glass raw material is mixed with foaming agent The step of also including ball milling before burning till, 6~8h of ball milling.
- 9. according to the method for claim 1, it is characterised in that the foaming agent is calcium carbonate or carbon black.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711095856.1A CN107601906A (en) | 2017-11-09 | 2017-11-09 | A kind of method that foam glass is produced using molybdic tailing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711095856.1A CN107601906A (en) | 2017-11-09 | 2017-11-09 | A kind of method that foam glass is produced using molybdic tailing |
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| CN107601906A true CN107601906A (en) | 2018-01-19 |
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| CN201711095856.1A Pending CN107601906A (en) | 2017-11-09 | 2017-11-09 | A kind of method that foam glass is produced using molybdic tailing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111620567A (en) * | 2020-06-05 | 2020-09-04 | 河北恒钏建筑材料有限公司 | Light microcrystalline foaming thermal insulation material prepared from molybdenum tailings and preparation method thereof |
| WO2024118711A1 (en) * | 2022-11-29 | 2024-06-06 | Owens Corning Intellectual Capital, Llc | Methods of increasing scrap glass recycling |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531462A (en) * | 2009-04-10 | 2009-09-16 | 北京工业大学 | Method for preparing borosilicate foam glass |
-
2017
- 2017-11-09 CN CN201711095856.1A patent/CN107601906A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531462A (en) * | 2009-04-10 | 2009-09-16 | 北京工业大学 | Method for preparing borosilicate foam glass |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111620567A (en) * | 2020-06-05 | 2020-09-04 | 河北恒钏建筑材料有限公司 | Light microcrystalline foaming thermal insulation material prepared from molybdenum tailings and preparation method thereof |
| CN111620567B (en) * | 2020-06-05 | 2021-02-23 | 河北恒钏建筑材料有限公司 | Light microcrystalline foaming thermal insulation material prepared from molybdenum tailings and preparation method thereof |
| WO2024118711A1 (en) * | 2022-11-29 | 2024-06-06 | Owens Corning Intellectual Capital, Llc | Methods of increasing scrap glass recycling |
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Application publication date: 20180119 |