CN107915411A - A kind of resource utilization method of aluminium ash - Google Patents
A kind of resource utilization method of aluminium ash Download PDFInfo
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- CN107915411A CN107915411A CN201711366251.1A CN201711366251A CN107915411A CN 107915411 A CN107915411 A CN 107915411A CN 201711366251 A CN201711366251 A CN 201711366251A CN 107915411 A CN107915411 A CN 107915411A
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- aluminium ash
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- resource utilization
- utilization method
- aluminium
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Classifications
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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
- C03C10/0036—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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
- C03B32/02—Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles
-
- 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
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/002—Use of waste materials, e.g. slags
-
- 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
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/04—Opacifiers, e.g. fluorides or phosphates; Pigments
-
- 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
- C03C10/0018—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 monovalent metal oxide as main constituents
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Crystallography & Structural Chemistry (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Glass Compositions (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of resource utilization method of aluminium ash, including：Industrial Quadratic aluminum dust is ground into 0.5~5h, after 40 mesh sieves, obtains aluminium ash micro mist；By weight, by 25~65 parts of aluminium ash micro mists, 20~35 parts of SiO2, 10~30 parts of CaO, 4~12 parts of TiO2, 5~12 parts of MgO and 0~5 part of colouring agents be uniformly mixed, then be placed in melting furnace and carry out melt process, liquation after being melted；Liquation after the melting is poured into be cooled and shaped in mould and obtains glassy state bulk, then the glassy state bulk is heat-treated, so as to obtain microcrystal glass material.Constitutionally stable microcrystal glass material can be made in aluminium ash by the present invention, so as to effectively overcome the shortcomings that useful component is easy to produce poisonous and harmful volatile matter in existing wet underwater welding aluminium ash, realize harmless treatment and the recycling of aluminium ash.
Description
Technical field
The present invention relates to aluminium ash processing technology field, more particularly to a kind of resource utilization method of aluminium ash.
Background technology
Aluminum products are respectively provided with important application in fields such as aerospace, building materials, high ferro, automobiles.In recent years, domestic aluminium work
Industry development is swift and violent, but substantial amounts of solid dangerous waste aluminium ash can be produced in aluminum smelting technology production process.The component of Quadratic aluminum dust is very
Complexity, metallic aluminium (3~9wt.%) therein are to be mixed in small alumina particles in lime-ash after frying ash processing, are considering to recycle
On the premise of cost, it is difficult to realize that further recycling recycles by chemical method or physical method.After measured：Industry is secondary
Contain the solubilities such as 3~9wt.% metal alumina particles, 40~70wt.% aluminium oxide, NaCl, KCl of 10~20wt.% in aluminium ash
Salt, the SiO of 5~10wt.%2, the oxide such as MgO, the Na of 3~6wt.%3AlF6、NaF、CaF2Deng fluoride, and it is a certain amount of
AlN, Al4C3Deng, it is also possible to contain a small amount of heavy metal, sulfide etc..Wherein, metal alumina particles, AlN, Al4C3Deng material
Activity is larger, meets water or inflammable poisonous gas can be produced in humid air, have high environmental harmfulness；Fluorochemical
With a small amount of heavy metal have can Leaching, water body and air may be caused seriously to pollute；Solubility salt also easily enters
Environmental pollution is caused in river；Therefore aluminium ash is difficult to be handled by traditional landfill means, otherwise environment can be caused sternly
Endanger again.
The content of the invention
, can the present invention provides a kind of resource utilization method of aluminium ash for above-mentioned shortcoming of the prior art
Aluminium ash is made stable structure and there is the microcrystal glass material of excellent physical and chemical performance, so as to effectively overcome existing wet method
The shortcomings that useful component is easy to produce poisonous and harmful volatile matter in extraction aluminium ash, realizes the recycling of aluminium ash.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of resource utilization method of aluminium ash, comprises the following steps：
Step A, industrial Quadratic aluminum dust is ground into 0.5~5h, after 40 mesh sieves, so as to obtain aluminium ash micro mist；
Step B, by weight, by 25~65 parts of aluminium ash micro mists, 20~35 parts of SiO2, 10~30 parts of CaO, 4~12 parts
TiO2, 5~12 parts of MgO and 0~5 part of colouring agents be uniformly mixed, then be placed in melting furnace and carry out melt process, so as to be melted
Liquation afterwards；
Step C, liquation after the melting is poured into be cooled and shaped in mould and obtains glassy state bulk, then to the glass
State bulk is heat-treated, so as to obtain microcrystal glass material.
Preferably, it is described heat treatment is carried out to the glassy state bulk to include：To the glassy state bulk first in forming core temperature
The lower heat treatment for carrying out 2~8h of degree, then carries out the heat treatment of 1~5h under recrystallization temperature.
Preferably, the nucleation temperature is 750 DEG C~800 DEG C.
Preferably, the recrystallization temperature is 850 DEG C~950 DEG C.
Preferably, during the melt process, volatile matter is collected by method for washing.
Preferably, the colouring agent uses NiO, Ni2O3、Fe2O3、Fe3O4、Co2O3、Cr2O3、CrO3、MnO2、KMnO4、
K2MnO4、CuO、Cu2O、V2O5At least one of.
Preferably, the CaCO of the amount of material such as CaO uses3And/or Ca (OH)2Substitute.
Preferably, the MgCO of the amount of material such as MgO uses3And/or Mg (OH)2Substitute.
Preferably, the AlN and Al contained in the industrial Quadratic aluminum dust4C3The method of high-temperature oxydation carries out through the air
Innoxious removal.
As seen from the above technical solution provided by the invention, the resource utilization method pair of aluminium ash provided by the invention
Industrial Quadratic aluminum dust is ground, and is made the active small alumina particles extension slabbing in aluminium ash, is increased alumina particles diameter, then lead to
Screening is crossed by aluminium flake and aluminium ash dust removing, aluminium flake is recycled, and aluminium ash micro mist with siliceous mineral, calcium mineral, containing magnesium
Mineral, nucleating agent after mixing, can be cooled and shaped by melt process, mould according to a certain ratio and crystallite are made in heat treatment
Glass material；The larger Al of content in aluminium ash micro mist2O3、SiO2, the oxide such as MgO can be as the main original for preparing devitrified glass
Material, can play the role of promoting glass network structure to form and improve glass property in glass material；In aluminium ash micro mist
The salts such as NaCl, KCl can be used as glass fining agent and cosolvent；Na in aluminium ash micro mist3AlF6、NaF、CaF2Shape can be played
Core agent acts on；Al in aluminium ash micro mist4C3, AlN isoreactivity materials CO can be oxidized in melt process2And N2, will not be to environment
Produce harm；Remaining a small amount of noxious volatile component (such as fluoride) can be in melt process by washing side in aluminium ash micro mist
Method is recycled；This can not only solve fluoride, Al in industrial Quadratic aluminum dust well4C3, the material such as AlN environmental pollution
Problem, realizes aluminium ash in microcrystal glass material preparation process to the harmless emission of environment, and prepared crystallite glass
Glass material structure is stable, has excellent physical and chemical performance, can act as building and ornament materials.As it can be seen that the present invention takes full advantage of work
The ingredient properties of industry Quadratic aluminum dust, realize and are stable structure by aluminium ash trans-utilization and have the crystallite glass of excellent physical and chemical performance
Glass material, so as to effectively overcome useful component in existing wet underwater welding aluminium ash to be easy to produce lacking for poisonous and harmful volatile matter
Point, realizes the recycling of aluminium ash.
Embodiment
The technical solution in the present invention is clearly and completely described below, it is clear that described embodiment is only
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiment of the present invention, those of ordinary skill in the art exist
All other embodiments obtained under the premise of creative work are not made, belong to protection scope of the present invention.
The resource utilization method of aluminium provided by the present invention ash is described in detail below.In the embodiment of the present invention not
The content being described in detail belongs to the prior art known to professional and technical personnel in the field.
A kind of resource utilization method of aluminium ash, comprises the following steps：
Step A, industrial Quadratic aluminum dust is ground into 0.5~5h, after 40 mesh sieves, so as to obtain aluminium ash micro mist.
Step B, by weight, by 25~65 parts of aluminium ash micro mists, 20~35 parts of SiO2, 10~30 parts of CaO, 4~12 parts
TiO2, 5~12 parts of MgO and 0~5 part of colouring agents be uniformly mixed, then be placed in melting furnace and carry out melt process, so as to be melted
Liquation afterwards.
Step C, liquation after the melting is poured into be cooled and shaped in mould and obtains glassy state bulk, then to the glass
State bulk is heat-treated, so as to obtain microcrystal glass material.
Specifically, the resource utilization method of aluminium ash provided by the present invention can include embodiments below：
(1) the industrial Quadratic aluminum dust refers to produce in industrial production first containing F, As or/and Pb, Cr, Cd heavy metal
The Quadratic aluminum dust with hazardous solid waste attribute of element.These industrial Quadratic aluminum dusts can make aluminium grey after 0.5~5h grindings
In active small alumina particles extension slabbing, the diameters of alumina particles is increased, so that again can will by the screening of 40 mesh sieves
Aluminium flake and aluminium ash dust removing, enable aluminium flake to recycle, and aluminium ash micro mist can be used for preparing microcrystal glass material.
(2) according to the characteristics of aluminium ash micro mist constituent, by aluminium ash micro mist and siliceous mineral, calcium mineral, magnesium-containing mineral,
Nucleating agent after mixing, can pass through crystallite glass made of melt process, mould cooling and shaping and heat treatment according to a certain ratio
Glass material.The larger Al of content in aluminium ash micro mist2O3、SiO2, the oxide such as MgO can be as the main former material for preparing devitrified glass
Material, can play the role of promoting glass network structure to form and improve glass property in glass material；In aluminium ash micro mist
The salts such as NaCl, KCl can be used as glass fining agent and cosolvent；Na in aluminium ash micro mist3AlF6、NaF、CaF2Shape can be played
Core agent acts on；Al in aluminium ash micro mist4C3, AlN isoreactivity materials CO can be oxidized in melt process2And N2, will not be to environment
Produce harm；Remaining a small amount of noxious volatile component (such as fluoride) can be in melt process by washing side in aluminium ash micro mist
Method is recycled；This can not only solve fluoride, Al in industrial Quadratic aluminum dust well4C3, the material such as AlN environmental pollution
Problem, realizes aluminium ash in microcrystal glass material preparation process to the harmless emission of environment, and prepared crystallite glass
Glass material structure is stable, has excellent physical and chemical performance, can be used as building and ornament materials.
(3) it is described heat treatment is carried out to the glassy state bulk to include：To glassy state bulk elder generation under nucleation temperature
The heat treatment of 2~8h is carried out, the heat treatment of 1~5h is then carried out under recrystallization temperature, this helps to make obtained devitrified glass
Material has more preferable structural stability and physical and chemical performance.Wherein, the nucleation temperature is preferably 750 DEG C~800 DEG C, the analysis
Brilliant temperature is preferably 850 DEG C~950 DEG C.
(4) colouring agent described in uses NiO, Ni2O3、Fe2O3、Fe3O4、Co2O3、Cr2O3、CrO3、MnO2、KMnO4、
K2MnO4、CuO、Cu2O、V2O5At least one of.
(5) CaO described in step B can use etc. the amount of material CaCO3And/or Ca (OH)2Substitute.And institute in step B
The MgO stated can use etc. the amount of material MgCO3And/or Mg (OH)2Substitute.
To sum up, stable structure and the crystallite glass with excellent physical and chemical performance can be made in aluminium ash by the embodiment of the present invention
Glass material, so as to effectively overcome useful component in existing wet underwater welding aluminium ash to be easy to produce lacking for poisonous and harmful volatile matter
Point, realizes the recycling of aluminium ash.
In order to more clearly from show technical solution provided by the present invention and caused technique effect, below with tool
The resource utilization method for the aluminium ash that body embodiment provides the embodiment of the present invention is described in detail.
Embodiment 1
A kind of resource utilization method of aluminium ash, comprises the following steps：
Step a1, industrial Quadratic aluminum dust is ground into 3h, abrasive media is the zirconium oxide bead of Φ=15mm, and 40 mesh are crossed after grinding
Sieve, so as to obtain aluminium flake and aluminium ash micro mist.
Step b1, by weight, by 50 parts of aluminium ash micro mists, 31 parts of SiO2, 10 parts of CaO, 4 parts of TiO2Mixed with 5 parts of MgO
Uniformly, then be placed in melting furnace be heated to 1500 DEG C progress melt process so that liquation after being melted.
Step c1, liquation after the melting is poured into be cooled and shaped in mould and obtains glassy state bulk, then to the glass
Glass state bulk first carries out the heat treatment of 4h at 780 DEG C, then the heat treatment of 3h is carried out at 950 DEG C, so as to obtain high alumina crystallite
Glass material.
Specifically, the microcrystal glass material prepared by the embodiment of the present invention 1, it is albite that its aluminium ash crystallite, which separates out principal crystalline phase,
And anorthite, glass Mohs' hardness reach 6.5, stability is good, and wear-resisting and flexing resistance is good, suitable for the high-grade floor tile of building or wall
Brick.
Embodiment 2
A kind of resource utilization method of aluminium ash, comprises the following steps：
Step a2, industrial Quadratic aluminum dust is ground into 3h, abrasive media is the zirconium oxide bead of Φ=15mm, and 40 mesh are crossed after grinding
Sieve, so as to obtain aluminium flake and aluminium ash micro mist.
Step b2, by weight, by 50 parts of aluminium ash micro mists, 31 parts of SiO2, 10 parts of CaO, 4 parts of TiO2, 5 parts of MgO and 0.1
Part Co2O3It is uniformly mixed, then is placed in melting furnace and is heated to 1500 DEG C of progress melt process, so that liquation after being melted.
Step c2, liquation after the melting is poured into be cooled and shaped in mould and obtains glassy state bulk, then to the glass
Glass state bulk first carries out the heat treatment of 4h at 780 DEG C, then the heat treatment of 3h is carried out at 880 DEG C, so as to obtain high alumina crystallite
Glass material.
Specifically, the microcrystal glass material prepared by the embodiment of the present invention 2, its aluminium ash crystallite entirety crystallization is uniform, in equal
One blueness, glass hard (HRC65Yi Shang) reach 6.5, and wear-resisting and flexing resistance is good, suitable for the high-grade floor tile of building or wall brick material.
To sum up, constitutionally stable microcrystal glass material can be made in aluminium ash by the embodiment of the present invention, so that effective gram
The shortcomings that useful component is easy to produce poisonous and harmful volatile matter in existing wet underwater welding aluminium ash has been taken, has realized the innoxious of aluminium ash
Processing and recycling.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art is in the technical scope of present disclosure, the change or replacement that can readily occur in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (9)
1. a kind of resource utilization method of aluminium ash, it is characterised in that comprise the following steps：
Step A, industrial Quadratic aluminum dust is ground into 0.5~5h, after 40 mesh sieves, so as to obtain aluminium ash micro mist；
Step B, by weight, by 25~65 parts of aluminium ash micro mists, 20~35 parts of SiO2, 10~30 parts of CaO, 4~12 parts of TiO2、5
~12 parts of MgO and 0~5 part of colouring agents are uniformly mixed, then are placed in melting furnace and are carried out melt process, so as to be melted after being melted
Liquid；
Step C, liquation after the melting is poured into be cooled and shaped in mould and obtains glassy state bulk, then to the glassy state block
Material is heat-treated, so as to obtain microcrystal glass material.
2. the resource utilization method of aluminium ash according to claim 1, it is characterised in that described to the glassy state bulk
Carrying out heat treatment includes：The heat treatment of 2~8h is first carried out under nucleation temperature to the glassy state bulk, then in recrystallization temperature
The heat treatment of 1~5h of lower progress.
3. the resource utilization method of aluminium ash according to claim 2, it is characterised in that the nucleation temperature is 750
DEG C~800 DEG C.
4. the resource utilization method of aluminium ash according to claim 2, it is characterised in that the recrystallization temperature is 850
DEG C~950 DEG C.
5. the resource utilization method of aluminium ash according to any one of claim 1 to 4, it is characterised in that described
During melt process, volatile matter is collected by method for washing.
6. the resource utilization method of aluminium ash according to any one of claim 1 to 4, it is characterised in that described
Toner uses NiO, Ni2O3、Fe2O3、Fe3O4、Co2O3、Cr2O3、CrO3、MnO2、KMnO4、K2MnO4、CuO、Cu2O、V2O5In
It is at least one.
7. the resource utilization method of aluminium ash according to any one of claim 1 to 4, it is characterised in that the CaO
Using etc. material amount CaCO3And/or Ca (OH)2Substitute.
8. the resource utilization method of aluminium ash according to any one of claim 1 to 4, it is characterised in that the MgO
Using etc. material amount MgCO3And/or Mg (OH)2Substitute.
9. the resource utilization method of aluminium ash according to any one of claim 1 to 4, it is characterised in that the industry
The AlN and Al contained in Quadratic aluminum dust4C3The method of high-temperature oxydation carries out innoxious removal through the air.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108483927A (en) * | 2018-07-03 | 2018-09-04 | 四川名微晶科技股份有限公司 | A method of using aluminium ash be main material production nepheline glass ceramic |
| CN108516688A (en) * | 2018-07-03 | 2018-09-11 | 四川名微晶科技股份有限公司 | A method of using aluminium ash be main material production spinel crystallites glass |
| CN110204310A (en) * | 2019-07-10 | 2019-09-06 | 中南大学 | A kind of methods and applications of fast low temperature processing black mud |
| CN110563336A (en) * | 2019-10-23 | 2019-12-13 | 北京科技大学 | Method for preparing microcrystalline glass by aluminum ash without desalting and removing nitrogen |
| CN113788623A (en) * | 2021-09-24 | 2021-12-14 | 北京科技大学 | Method for preparing foam glass ceramics by secondary aluminum ash without pretreatment |
| CN115611657A (en) * | 2022-09-26 | 2023-01-17 | 科达制造股份有限公司 | Light aggregate using aluminous ash as raw material and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108483927A (en) * | 2018-07-03 | 2018-09-04 | 四川名微晶科技股份有限公司 | A method of using aluminium ash be main material production nepheline glass ceramic |
| CN108516688A (en) * | 2018-07-03 | 2018-09-11 | 四川名微晶科技股份有限公司 | A method of using aluminium ash be main material production spinel crystallites glass |
| CN110204310A (en) * | 2019-07-10 | 2019-09-06 | 中南大学 | A kind of methods and applications of fast low temperature processing black mud |
| CN110563336A (en) * | 2019-10-23 | 2019-12-13 | 北京科技大学 | Method for preparing microcrystalline glass by aluminum ash without desalting and removing nitrogen |
| CN113788623A (en) * | 2021-09-24 | 2021-12-14 | 北京科技大学 | Method for preparing foam glass ceramics by secondary aluminum ash without pretreatment |
| CN115611657A (en) * | 2022-09-26 | 2023-01-17 | 科达制造股份有限公司 | Light aggregate using aluminous ash as raw material and preparation method thereof |
| CN115611657B (en) * | 2022-09-26 | 2023-12-19 | 科达制造股份有限公司 | Lightweight aggregate with aluminum ash as raw material and preparation method thereof |
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