KR100947407B1 - 석탄 비산회로부터 실리카 및 알루미나를 회수하기 위한방법 - Google Patents
석탄 비산회로부터 실리카 및 알루미나를 회수하기 위한방법 Download PDFInfo
- Publication number
- KR100947407B1 KR100947407B1 KR20077029621A KR20077029621A KR100947407B1 KR 100947407 B1 KR100947407 B1 KR 100947407B1 KR 20077029621 A KR20077029621 A KR 20077029621A KR 20077029621 A KR20077029621 A KR 20077029621A KR 100947407 B1 KR100947407 B1 KR 100947407B1
- Authority
- KR
- South Korea
- Prior art keywords
- fly ash
- solution
- alkali
- sio
- residue
- Prior art date
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- 239000010881 fly ash Substances 0.000 title claims abstract description 78
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000000377 silicon dioxide Substances 0.000 title claims abstract description 18
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 239000003245 coal Substances 0.000 title claims abstract description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 63
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims abstract description 35
- 229910018125 Al-Si Inorganic materials 0.000 claims abstract description 15
- 229910018520 Al—Si Inorganic materials 0.000 claims abstract description 15
- 239000004568 cement Substances 0.000 claims abstract description 15
- 238000011084 recovery Methods 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 239000000945 filler Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 7
- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 5
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000003513 alkali Substances 0.000 claims description 16
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 12
- 238000002386 leaching Methods 0.000 claims description 9
- 238000005245 sintering Methods 0.000 claims description 9
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 claims description 5
- 235000019738 Limestone Nutrition 0.000 claims description 4
- 238000007598 dipping method Methods 0.000 claims description 4
- 239000006028 limestone Substances 0.000 claims description 4
- 230000008929 regeneration Effects 0.000 claims description 3
- 238000011069 regeneration method Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 2
- 229910052622 kaolinite Inorganic materials 0.000 claims description 2
- 239000003518 caustics Substances 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000005995 Aluminium silicate Substances 0.000 abstract description 2
- 235000012211 aluminium silicate Nutrition 0.000 abstract description 2
- 238000001354 calcination Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 48
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 12
- 238000003756 stirring Methods 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000011734 sodium Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010626 work up procedure Methods 0.000 description 6
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 5
- 229910001388 sodium aluminate Inorganic materials 0.000 description 5
- 239000012670 alkaline solution Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000010790 dilution Methods 0.000 description 4
- 239000012895 dilution Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000004115 Sodium Silicate Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 3
- 229910052911 sodium silicate Inorganic materials 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 238000004131 Bayer process Methods 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 229910002796 Si–Al Inorganic materials 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
- C04B12/00—Cements not provided for in groups C04B7/00 - C04B11/00
- C04B12/04—Alkali metal or ammonium silicate cements ; Alkyl silicate cements; Silica sol cements; Soluble silicate cements
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
- C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
- C01F7/0693—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process from waste-like raw materials, e.g. fly ash or Bayer calcination dust
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- Combustion & Propulsion (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Removal Of Specific Substances (AREA)
- Silicon Compounds (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Description
비산회의 활성화는 배소(roasting), 산 침지(acid- steeping) 또는 알칼리 침지(alkali- steeping)에 의해 얻어질 수 있다. 배소 조건은 950℃ 이하의 온도 하에서 1~1.5시간 동안의 배소-활성화이다. 평온 또는 특정 온도 중 하나에서, 임의의 농도의 H2SO4 용액이 비산회를 침지시키는 데 사용될 수 있다. 반면에, 비산회를 침지시키기 위해 사용되는 적합한 알칼리 용액은 5~20중량% NaOH 용액이다.
Claims (8)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB200710061662XA CN100491247C (zh) | 2007-04-03 | 2007-04-03 | 一种利用粉煤灰生产二氧化硅和氧化铝的方法 |
CN200710061662.X | 2007-04-03 | ||
CN2007100625347A CN101125656B (zh) | 2007-08-07 | 2007-08-07 | 一种从粉煤灰中先提硅后提铝的方法 |
CN200710062534.7 | 2007-08-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20080094547A KR20080094547A (ko) | 2008-10-23 |
KR100947407B1 true KR100947407B1 (ko) | 2010-03-12 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR20077029621A KR100947407B1 (ko) | 2007-04-03 | 2007-08-16 | 석탄 비산회로부터 실리카 및 알루미나를 회수하기 위한방법 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7871583B2 (ko) |
JP (1) | JP4332591B2 (ko) |
KR (1) | KR100947407B1 (ko) |
RU (1) | RU2389682C2 (ko) |
WO (1) | WO2008119212A1 (ko) |
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CN101811712A (zh) * | 2010-04-27 | 2010-08-25 | 中国神华能源股份有限公司 | 一种利用流化床粉煤灰制备冶金级氧化铝的方法 |
GB2495749B (en) * | 2011-10-20 | 2015-11-04 | Rocktron Mineral Services Ltd | Beneficiation of fly ash |
CN102515186B (zh) * | 2011-12-12 | 2014-05-07 | 昆明理工大学 | 一种回收硅的方法 |
CN102557091A (zh) * | 2011-12-30 | 2012-07-11 | 西安航天科技工业公司 | 粉煤灰提取氧化铝工艺过程中硫酸铝的后续处理方法 |
DE102012001945A1 (de) | 2012-02-02 | 2013-08-08 | Bernd Kunze | Verfahren zur Verarbeitung aluminiumhaltiger Rohstoffe |
KR101443836B1 (ko) | 2012-04-17 | 2014-09-30 | 송병옥 | 카올린(큐랙스)에서 알루미나와 실리카를 분리하는 장치 및 방법 |
AU2012395691B2 (en) | 2012-11-27 | 2016-05-26 | China Energy Investment Corporation Limited | Method for preparing solid amine gas adsorption material |
CN103058238B (zh) * | 2013-01-23 | 2016-02-10 | 内蒙古联合工业有限公司 | 一种从粉煤灰中提取氧化铝的工艺 |
CN103360033A (zh) * | 2013-03-22 | 2013-10-23 | 朔州市朔湘陶瓷有限公司 | 一种粉煤灰聚轻轻质砖 |
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CN103332711B (zh) * | 2013-05-17 | 2015-05-20 | 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心 | 高铝粉煤灰的深度脱硅方法 |
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PL363430A1 (en) * | 2000-12-31 | 2004-11-15 | Ati-Aluminum Technologies Israel Ltd. | Production of aluminum compounds and silica from ores |
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US7871583B2 (en) | 2011-01-18 |
US20100119426A1 (en) | 2010-05-13 |
JP4332591B2 (ja) | 2009-09-16 |
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