CN1027256C - Production method of brown corundum - Google Patents
Production method of brown corundum Download PDFInfo
- Publication number
- CN1027256C CN1027256C CN 90107092 CN90107092A CN1027256C CN 1027256 C CN1027256 C CN 1027256C CN 90107092 CN90107092 CN 90107092 CN 90107092 A CN90107092 A CN 90107092A CN 1027256 C CN1027256 C CN 1027256C
- Authority
- CN
- China
- Prior art keywords
- aluminium
- brown corundum
- content
- waste material
- aluminium ash
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000010431 corundum Substances 0.000 title claims abstract description 28
- 229910052593 corundum Inorganic materials 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 25
- 239000004411 aluminium Substances 0.000 claims abstract description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000002699 waste material Substances 0.000 claims abstract description 23
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000002844 melting Methods 0.000 claims description 11
- 230000008018 melting Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- -1 aluminium chlorohydroxide Chemical compound 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 238000001035 drying Methods 0.000 abstract description 4
- 238000003723 Smelting Methods 0.000 abstract description 3
- 238000007885 magnetic separation Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 1
- 238000007873 sieving Methods 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 9
- 229910010413 TiO 2 Inorganic materials 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000005202 decontamination Methods 0.000 description 2
- 230000003588 decontaminative effect Effects 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 229910001388 sodium aluminate Inorganic materials 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A brown corundum is prepared from aluminium ash through washing, drying, arc smelting, cooling, crushing, wind separation, magnetic separation and sieving. The method opens up a new raw material source for the abrasive industry, changes waste into valuable, eliminates pollution, and has the advantages of high purity of the brown corundum produced by the method and electric energy saving.
Description
The present invention relates to a kind of production method of brown corundum.
The palm fibre corundum is a kind of manufactured abrasive of industrial widespread use, is mainly used in to make grinding tool, refractory materials etc.Prior art is produced brown corundum and is generally made through high melt at electric arc furnace with aluminum oxide powder or alumina.In the arc melting operation, add a certain amount of quartz sand limits contained sodium aluminate in the corundum to remove sodium aluminate content when producing with aluminum oxide powder.Add a certain amount of charcoal and iron filings etc. to remove CaO, SiO in the melting operation when adopting alumina to produce corundum
2, Fe
2O
3Deng impurity, so expend a large amount of electric energy.
Alumina content is much higher than the alumina content in the alumina in the aluminium ash waste material that researchist of the present invention finds to produce in the aluminium course of processing, and foreign matter contents such as silicon, iron are few.Up to the present aluminium ash waste material does not obtain utilizing, and a lot of factories all pile the mountain and cause serious environmental to pollute.
The object of the present invention is to provide a kind of method that adopts aluminium ash waste material to produce brown corundum, for artificial Abrasive Industry is developed a kind of new raw material sources, and turn waste into wealth, decontamination is beautified the environment.
Technical solution of the present invention is achieved in that
A. raw material adopts aluminium ash waste material.
B. earlier aluminium ash waste material water is cleaned to rinse water pH value be 6～7.
C. the ash of the aluminium through cleaning waste material is dried to water ratio and is less than 1% under 200～800 ℃ of temperature.
D. the brown corundum crystal seed mixing melting under 1900～2500 ℃ of temperature afterwards that adds dried aluminium ash weight 0.5～1% in the aluminium of the drying ash waste material.
E. will make brown alundum powder through operations such as cooling, waste branch, pulverizing, selection by winnowing, magnetic separation, screenings through the brown corundum of melting.
Method of the present invention has the following advantages:
1. starting material of the present invention are the aluminium ash waste material that produces in the aluminium processing, so opened up new raw material sources for Abrasive Industry on the one hand, can turn waste into wealth on the other hand, and decontamination is beautified the environment.
2. because salic content height in the aluminium ash waste material, and pure, impurity is few, so brown corundum yield height, foreign matter content is few in the brown corundum.
3. during generally with alumina production palm fibre corundum is to remove CaO, SiO
2, Fe
2O
3Need dose charcoal, iron filings etc. and will consume a large amount of electric energy Deng impurity, so impurity produces through the advance copy method less saves energy that brown corundum is comparable saves 500～1000 kilowatt-hours of/ton electric energy with alumina production in the raw material that the present invention adopts.
Further specify technical solution of the present invention in conjunction with the embodiments:
Embodiment 1
1. get 15 kilograms of aluminium ash waste materials that extracted aluminium chlorohydroxide, sampling analysis is Al as a result
2O
3Content is (weight ratio) 82.80%, SiO
2Content is 1.23%, Fe
2O
3Content 1.25%, TiO
2Content 0.44% burns decrement 13%, aluminium ash waste material is put into water cleans 3 times in the tank, and cleaning the pH value is 6.
2. under 700 ℃ of temperature of drying shed, dry 3 hours water ratio with the waste heat of smelting furnace and reach 1%.
3. the aluminium drying crossed ash moves into to add in the arc-melting furnace and was added in the aluminium ash under 1900～2150 ℃ of temperature melting after the brown corundum crystal seed mixing of 25 grams 3 hours.
4. naturally cooling shifted out smelting furnace after 1 hour, continued cooling shelling in 6 hours and formed brown fused alumina ingot.
5. with the waste sorting piece of brown corundum, pulverize with 600 jaw crushers.
6. the intensity magnetic separator is removed the magnetic thing at the bottom of adopting common winnowing machine to remove to adopt 600～800 oersteds after the broken dust.
With 14 orders open sieve 9.9 kilograms of brown corundum.
It is as follows that this palm fibre corundum is pressed GB2478-81 method test result:
1. chemical ingredients:
100#～180#, Al
2O
3% is 88.63, TiO
2% is 2.08
2. hardness: Mohs' hardness 9.1
3. proportion: 3.9 gram/cm
3
4. magnetic material content: 0.038%
Embodiment 2
Get 700 kilograms of aluminium ash waste materials that extracted aluminium chlorohydroxide, sampling analysis is Al as a result
2O
3Content is 85.10%, SiO
2Content 1.22%, Fe
2O
3Content 1.24%TiO
2Content 0.43%, burning subtracts 13.3%.Add 7 kilograms of brown corundum crystal seeds, melting under 2150～2450 ℃ of temperature, other operations get 525 kilograms of brown corundum with embodiment 1.
It is as follows that this palm fibre corundum is pressed GB2478-81 method test result:
1. chemical ingredients
100#～180#, Al
2O
3Content 91.65%, TiO
2Content 0.25%
2. hardness: Mohs' hardness 9.2
3. proportion: 3.93 gram/cm
3
4. magnetic material content: 0.0382%
Embodiment 3
Get 800 kilograms of aluminium ash waste materials that extracted aluminium chlorohydroxide, sampling analysis is Al as a result
2O
3Content is 87.00%, SiO
2Content 1.23%, TiO
2Content 0.42%, Fe
2O
3Content 1.23%, burning subtracts 13.5%.Add 7.5 kilograms of brown corundum crystal seeds, melting under 2450～2500 ℃ of temperature, other operations get 640 kilograms of brown corundum with embodiment 1.
It is as follows that this palm fibre corundum is pressed GB2478-81 method test result:
1. chemical ingredients
100#～180#, Al
2O
3Content 93.99%, TiO
2Content 0.26%
2. hardness: Mohs' hardness 9.3
3. proportion: 3.95 gram/cm
3
4. magnetic material content: 0.0388%.
Claims (1)
1, a kind of production method of brown corundum through arc melting, cooling, waste branch, pulverizing, selection by winnowing, screening operation, is characterized in that:
A. raw material adopts and contains 82.80～87%Al
2O
3Extraction the aluminium ash waste material of aluminium chlorohydroxide,
B. earlier aluminium ash waste material water is cleaned to rinse water pH value be 6-7,
C. the ash of the aluminium through cleaning waste material is dried to water ratio and is less than 1% under 200～800 ℃ of temperature,
D. the brown corundum crystal seed mixing melting under 1900～2500 ℃ of temperature afterwards that in the dried aluminium ash of arc melting operation waste material, adds dried aluminium ash weight 0.5～1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90107092 CN1027256C (en) | 1990-08-18 | 1990-08-18 | Production method of brown corundum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90107092 CN1027256C (en) | 1990-08-18 | 1990-08-18 | Production method of brown corundum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1049008A CN1049008A (en) | 1991-02-06 |
| CN1027256C true CN1027256C (en) | 1995-01-04 |
Family
ID=4880400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90107092 Expired - Fee Related CN1027256C (en) | 1990-08-18 | 1990-08-18 | Production method of brown corundum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1027256C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035061C (en) * | 1994-11-04 | 1997-06-04 | 成都成华恒达科贸公司 | Method for prodn. of blue corundum abrasive |
| CN100360411C (en) * | 2005-03-10 | 2008-01-09 | 沈兰英 | Method of smelting bauxite corundum |
| CN100532268C (en) * | 2007-12-17 | 2009-08-26 | 中国铝业股份有限公司 | Production method of oxygen-containing beta aluminum fluoride for aluminum electrolysis bath by using aluminum scruff ash |
| CN101555367B (en) * | 2008-04-11 | 2012-10-10 | 上海市机械制造工艺研究所有限公司 | Brown alumina alcohol group dope |
| CN102828028A (en) * | 2011-06-18 | 2012-12-19 | 于斌 | Comprehensive treatment technology of waste aluminum ash |
| CN103274436B (en) * | 2013-05-29 | 2015-01-07 | 洛阳金石再生资源开发有限公司 | Method for producing brown fused alumina by use of aluminum ash low-temperature smelting |
| CN104446533B (en) * | 2014-11-04 | 2016-05-18 | 河南红然铝业有限公司 | A kind of bauxite frit and preparation method thereof |
| CN107541189A (en) * | 2017-08-22 | 2018-01-05 | 郑州威源新材料有限公司 | A kind of production method for ensureing that fused alumina zirconia abrasive grain composition is stable |
-
1990
- 1990-08-18 CN CN 90107092 patent/CN1027256C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1049008A (en) | 1991-02-06 |
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