CN107793142A - A kind of synthetic method of forsterite - Google Patents
A kind of synthetic method of forsterite Download PDFInfo
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- CN107793142A CN107793142A CN201610743599.7A CN201610743599A CN107793142A CN 107793142 A CN107793142 A CN 107793142A CN 201610743599 A CN201610743599 A CN 201610743599A CN 107793142 A CN107793142 A CN 107793142A
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- mixed
- forsterite
- boron mud
- powder
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
- C04B35/20—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in magnesium oxide, e.g. forsterite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
A kind of synthetic method of forsterite, is carried out according to the following steps：（1）It is that the light-magnesite powder of 150 ~ 240 mesh and natural boltonite powder are added in boron mud by granularity, mixed material is made；（2）Magnesium chloride is added into mixed material and is well mixed, water is added and is well mixed, be pressed into spherical material, stands 10 ~ 20h of maintenance；（3）The calcining of high temperature vertical kiln high temperature is placed in after being mixed with coal.The present invention can not only administer the boron mud saved bit by bit for many years, solve the environment of the boron mud of puzzlement for a long time and the pollution of ecology, perfect boron industrial chain can also be made, search out today increasingly to lack in magnesium resource and meet the new substitute products that use, for local comprehensive reasonable using resource, develop a circular economy and establish model.
Description
Technical field
The invention belongs to field of material technology, more particularly to a kind of synthetic method of forsterite.
Background technology
In Dashiqiao Area is one of main producing region of China's boride, and there is the history of nearly 50 years in borax enterprise.Dashiqiao
Area's borax production line is all produced using carbon alkaline process tissue, and its technical process is：By baked ripe boron mineral（90% passes through 150
Mesh）Mixed with alkali lye by solid-to-liquid ratio 1.4 ~ 1.6, be made into slurry, put into carbon solution kettle, be warming up to 125 ~ 135 DEG C, be passed through titanium dioxide
Carbon, Stress control are reacted 12 ~ 24 hours, separation of solid and liquid are then carried out in filter, its filtrate is crystallized in 0.6MPa or so
95% borax is centrifuged to obtain, then 99.5% borax is obtained through gas drying, filter cake is boron mud.One ton of borax of production will produce 3 ~
4 tons of boron muds, have saved bit by bit substantial amounts of boron mud for many years, cause very big problem of environmental pollution.
Also there is high-temperature roasting after being mixed using natural boltonite and light calcined magnesia etc. in existing technology, prepare synthesis
The method of forsterite, fuel is used as using anthracite during roasting, preparation cost is higher, and synthetic effect is unsatisfactory.
The content of the invention
It is an object of the invention to provide a kind of synthetic method of forsterite, and magnesium olive is prepared as raw material using boron mud
Stone, in the environmental pollution for administering boron mud simultaneously, prepare forsterite of good performance.
The preparation method of the present invention is carried out according to the following steps：
1st, it is that the light-magnesite powder of 150 ~ 240 mesh and natural boltonite powder are added in boron mud by granularity, mixing is made
Material, addition are by weight boron mud:Natural boltonite powder:Light-magnesite powder=1:（0.1~0.3）:（0.5~0.8）；
2nd, magnesium chloride is added into mixed material and is well mixed, acquisition combines material, and the addition of magnesium chloride is mixed material
The 1 ~ 3% of gross weight；Then add water and be well mixed, the addition of water is with reference to the 8 ~ 10% of material gross weight, then with pressure
Ball machine is pressed into spherical material, and pressure during compacting is 45 ± 5 MPa；Spherical material is stood into 10 ~ 20h of maintenance again；
3rd, it is placed in after the spherical material after maintenance is mixed with coal in high temperature vertical kiln, the ratio by mass ratio of fuel and blank is（3
~5）:1, it is then heated to 1500 ~ 1520 DEG C of 3 ~ 4h of insulation and carries out high-temperature calcination, forsterite is made.
A diameter of 30 ~ 60mm of the spherical material of the above method.
Boron mud in the above method is material of the waste residue discharged in borax production process after placing and spontaneously drying, its into
Divide and contain SiO by weight percentage225 ~ 30%, Fe2O33 ~ 6%, Al2O31 ~ 4%, CaO 1 ~ 3%, MgO 35 ~ 45%, B2O31~
2%, surplus loses composition to burn；Granularity is 100 ~ 200 mesh.
The present invention is easy to be reliable using conventional technology, production technology；The boron mud saved bit by bit for many years can be not only administered,
Solve the environment of puzzlement boron mud for a long time and the pollution of ecology, perfect boron industrial chain can also be made, be in magnesium resource increasingly
Search out the new substitute products for meeting to use today of shortage, resource, tree of developing a circular economy are utilized for local comprehensive reasonable
Vertical model.The content of the synthetic forsterite magnesia of the method production of the present invention reaches more than 60%, and impurity content is few, in height
More high temperature mineral phase-forsterites are generated in warm sintering process, reduce the generation quantity of low melting point phase, using it as original
When refractory product is made in material, it is possible to increase the refractoriness and refractoriness under load of refractory product.
Embodiment
The boron mud composition used in the embodiment of the present invention contains SiO by weight percentage225 ~ 30%, Fe2O33 ~ 6%, Al2O3
1 ~ 4%, CaO 1 ~ 3%, MgO 35 ~ 45%, B2O31 ~ 2%, surplus is loss on ignition composition and a small amount of impurity；Granularity is 100 ~ 200 mesh.
The composition of the natural boltonite used in the embodiment of the present invention contains SiO by weight percentage230 ~ 40%, Fe2O3
5 ~ 8%, Al2O30.5 ~ 1.5%, CaO 1 ~ 3%, MgO 40 ~ 50%, surplus lose composition and a small amount of impurity to burn；Granularity≤1mm.
The composition of the light calcined magnesia used in the embodiment of the present invention contains SiO by weight percentage23 ~ 7%, Fe2O3 0.5~
2%, Al2O30.5 ~ 3%, CaO 1 ~ 2%, MgO 80 ~ 91%, surplus lose composition to burn；Granularity≤1mm.
A diameter of 30 ~ 60mm of spherical material in the embodiment of the present invention.
Embodiment 1
It is that the light-magnesite powder of 150 ~ 240 mesh and natural boltonite powder are added in boron mud by granularity, mixture is made
Material, addition are by weight boron mud:Natural boltonite powder:Light-magnesite powder=1:0.1:0.5；
Magnesium chloride is added into mixed material and is well mixed, acquisition combines material, and the addition of magnesium chloride is total for mixed material
The 1% of weight；Then add water and be well mixed, the addition of water is with reference to the 8% of material gross weight, is then suppressed with ball press
Glomeration material, pressure during compacting is 45 ± 5 MPa；Spherical material is stood into maintenance 20h again；
It is placed in after spherical material after maintenance is mixed with coal in high temperature vertical kiln, the ratio by mass ratio of fuel and blank is 3:1,
It is then heated to 1520 DEG C of insulation 3h and carries out high-temperature calcination, forsterite is made.
Embodiment 2
It is that the light-magnesite powder of 150 ~ 240 mesh and natural boltonite powder are added in boron mud by granularity, mixture is made
Material, addition are by weight boron mud:Natural boltonite powder:Light-magnesite powder=1:0.2:0.6；
Magnesium chloride is added into mixed material and is well mixed, acquisition combines material, and the addition of magnesium chloride is total for mixed material
The 2% of weight；Then add water and be well mixed, the addition of water is with reference to the 9% of material gross weight, is then suppressed with ball press
Glomeration material, pressure during compacting is 45 ± 5 MPa；Spherical material is stood into maintenance 15h again；
It is placed in after spherical material after maintenance is mixed with coal in high temperature vertical kiln, the ratio by mass ratio of fuel and blank is 5:1,
It is then heated to 1500 DEG C of insulation 4h and carries out high-temperature calcination, forsterite is made.
Embodiment 3
It is that the light-magnesite powder of 150 ~ 240 mesh and natural boltonite powder are added in boron mud by granularity, mixture is made
Material, addition are by weight boron mud:Natural boltonite powder:Light-magnesite powder=1:0.3:0.8；
Magnesium chloride is added into mixed material and is well mixed, acquisition combines material, and the addition of magnesium chloride is total for mixed material
The 3% of weight；Then add water and be well mixed, the addition of water is with reference to the 10% of material gross weight, then with ball press pressure
It is made spherical material, pressure during compacting is 45 ± 5 MPa；Spherical material is stood into maintenance 10h again；
It is placed in after spherical material after maintenance is mixed with coal in high temperature vertical kiln, the ratio by mass ratio of fuel and blank is 4:1,
It is then heated to 1510 DEG C of insulation 3.5h and carries out high-temperature calcination, forsterite is made.
Claims (3)
1. a kind of synthetic method of forsterite, it is characterised in that carry out according to the following steps：
（1）It is that the light-magnesite powder of 150 ~ 240 mesh and natural boltonite powder are added in boron mud by granularity, mixing is made
Material, addition are by weight boron mud:Natural boltonite powder:Light-magnesite powder=1:（0.1~0.3）:（0.5~0.8）；
（2）Magnesium chloride is added into mixed material and is well mixed, acquisition combines material, and the addition of magnesium chloride is mixed material
The 1 ~ 3% of gross weight；Then add water and be well mixed, the addition of water is with reference to the 8 ~ 10% of material gross weight, then with pressure
Ball machine is pressed into spherical material, and pressure during compacting is 45 ± 5 MPa；Spherical material is stood into 10 ~ 20h of maintenance again；
（3）It is placed in after spherical material after maintenance is mixed with coal in high temperature vertical kiln, the ratio by mass ratio of fuel and blank is
（3~5）:1, it is then heated to 1500 ~ 1520 DEG C of 3 ~ 4h of insulation and carries out high-temperature calcination, forsterite is made.
A kind of 2. synthetic method of forsterite according to claim 1, it is characterised in that described spherical material it is straight
Footpath is 30 ~ 60mm.
3. the synthetic method of a kind of forsterite according to claim 1, it is characterised in that described boron mud is given birth to for borax
Material of the waste residue discharged during production after placing and spontaneously drying, its composition contain SiO by weight percentage225 ~ 30%, Fe2O3
3 ~ 6%, Al2O31 ~ 4%, CaO 1 ~ 3%, MgO 35 ~ 45%, B2O31 ~ 2%, surplus loses composition to burn；Granularity is 100 ~ 200 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610743599.7A CN107793142A (en) | 2016-08-29 | 2016-08-29 | A kind of synthetic method of forsterite |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610743599.7A CN107793142A (en) | 2016-08-29 | 2016-08-29 | A kind of synthetic method of forsterite |
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| Publication Number | Publication Date |
|---|---|
| CN107793142A true CN107793142A (en) | 2018-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610743599.7A Pending CN107793142A (en) | 2016-08-29 | 2016-08-29 | A kind of synthetic method of forsterite |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170749A (en) * | 2020-01-16 | 2020-05-19 | 海城市中昊镁业有限公司 | Method for preparing fused forsterite by utilizing magnesite tailings through electric melting |
-
2016
- 2016-08-29 CN CN201610743599.7A patent/CN107793142A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170749A (en) * | 2020-01-16 | 2020-05-19 | 海城市中昊镁业有限公司 | Method for preparing fused forsterite by utilizing magnesite tailings through electric melting |
| CN111170749B (en) * | 2020-01-16 | 2022-06-07 | 海城市中昊镁业有限公司 | Method for preparing fused forsterite by utilizing magnesite tailings through electric melting |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180313 |
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| WD01 | Invention patent application deemed withdrawn after publication |