CN101307388B - Process for extracting aluminium and chlorides in aluminium ash - Google Patents
Process for extracting aluminium and chlorides in aluminium ash Download PDFInfo
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- CN101307388B CN101307388B CN200810115443XA CN200810115443A CN101307388B CN 101307388 B CN101307388 B CN 101307388B CN 200810115443X A CN200810115443X A CN 200810115443XA CN 200810115443 A CN200810115443 A CN 200810115443A CN 101307388 B CN101307388 B CN 101307388B
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- aluminium
- ash
- aluminium ash
- liquid
- muriate
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 128
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 128
- 239000004411 aluminium Substances 0.000 title claims abstract description 123
- 238000000034 method Methods 0.000 title claims abstract description 34
- 150000001805 chlorine compounds Chemical class 0.000 title 1
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 239000002893 slag Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000000605 extraction Methods 0.000 claims abstract description 16
- 238000005266 casting Methods 0.000 claims abstract description 14
- 239000007791 liquid phase Substances 0.000 claims abstract description 13
- 239000007790 solid phase Substances 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- 238000001704 evaporation Methods 0.000 claims abstract description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 10
- 238000002386 leaching Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000002425 crystallisation Methods 0.000 claims description 7
- 230000008025 crystallization Effects 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000009834 vaporization Methods 0.000 claims description 2
- 230000008016 vaporization Effects 0.000 claims description 2
- 238000011084 recovery Methods 0.000 abstract description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 3
- 239000013078 crystal Substances 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- 241000190022 Pilea cadierei Species 0.000 abstract 2
- 241000196324 Embryophyta Species 0.000 abstract 1
- 239000002956 ash Substances 0.000 description 48
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 6
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 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
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 4
- 238000007670 refining Methods 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 229960001866 silicon dioxide Drugs 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 239000011343 solid material Substances 0.000 description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 3
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 229910001629 magnesium chloride Inorganic materials 0.000 description 3
- 239000012492 regenerant Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- RLBLFSQXAKQALA-UHFFFAOYSA-N [Na].[K].[Mg].[Ca] Chemical compound [Na].[K].[Mg].[Ca] RLBLFSQXAKQALA-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- WBZKQQHYRPRKNJ-UHFFFAOYSA-L disulfite Chemical compound [O-]S(=O)S([O-])(=O)=O WBZKQQHYRPRKNJ-UHFFFAOYSA-L 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a method for extracting aluminium and chloride by processing aluminium ash. The method is suitable for the comprehensive application of the aluminium ash which is industrial residue generated during remelting and casting in an electrolytic aluminium plant, an aluminium processing plant or a secondary aluminium plant. The invention is characterized in that the extraction process comprises the following steps of: directly sending delivering extracted aluminium liquid for casting, after the aluminium ash is heated to completely melt aluminium in the aluminium ash and separate the aluminium from slag; immersing the slag in water to dissolve the chloride in the aluminium ash in the water, and separating solid and liquid; and evaporating liquid phase to produce a chloride crystal, and using solid phase as a raw material to produce alumina. The method for processing the aluminium ash has the advantages of short process flow, convenient operation, easy industrial implementation, high comprehensive application value and high coefficient of recovery, can extract various valuable compositions in the aluminium ash. The coefficient of recovery of the metal aluminium inthe aluminium ash is larger than 85 percent, and the coefficient of recovery of the chloride in the aluminium ash is larger than 80 percent.
Description
Technical field
The present invention relates to a kind of processing aluminium ash and extract aluminium and muriatic method, be applicable to industrial residue---the comprehensive utilization of aluminium ash that electrolytic aluminium factory, aluminum fabrication plant, regeneration aluminium manufacturer remelting and casting process produce.
Background technology
The aluminium ash is molten slag and the outer skin that produces in aluminium liquid, aluminium ingot, the refining aluminium process of secondary aluminum melting, the aluminium ash is big, the with serious pollution industrial residue of a kind of output, is mainly derived from the casting process of electrolytic aluminium factory, aluminum fabrication plant and the melting and casting operation of regeneration aluminium manufacturer.According to statistics, one ton of primary aluminum of every processing produces 20-40 kg aluminium ash approximately, and generation is less during the direct founding of aluminium liquid, and generation is more during the aluminium ingot remelting; The one ton of aluminium scrap of regenerating produces 100-250 kg aluminium ash approximately.Aluminium ash outward appearance is a silver gray, Powdered, the similar flyash of proterties.The main component of aluminium ash is: the about 10%-30% of metallic aluminium, the about 30%-70% of aluminum oxide, silicon-dioxide and the about 5%-15% of ferric oxide, the about 10%-30% of muriate of potassium sodium calcium magnesium.The aluminium ash has very high recycling and is worth.At present, the applied research of aluminium ash mainly concentrates on following several respects both at home and abroad: reclaim aluminium and aluminum oxide; Synthesizing efficient water treatment flocculant---polymerize aluminum chloride; Produce Tai-Ace S 150; The aluminium ash is used for material of construction.
Patent ZL200410052548.7 discloses a kind of with aluminium scrap ash production method of alumina, and it is with the screening of aluminium ash, sieve mesh 40-60 order; Iron removal by magnetic separation; Dewater to the aluminium ash and contain moisture＜15%; Add Na in the aluminium ash after dehydration
2CO
3Solution stirring; Aluminium mortar sintering, its temperature of charge are 1100 ℃-1200 ℃; The grog cooling, 100 ℃-200 ℃ of cooling temperatures; Cooled grog is added water be ground to 120 orders-150 purpose grog slurries, the slurries causticity is than 1: 1-1: 1.6, and the slurries aluminic acid is received content 120g/L-150g/L; Heat and leach the thick solution of sodium aluminate, 80 ℃-100 ℃ of its extraction temperatures, extraction time 1-2h; Press filtration: obtain sodium aluminate concentrate solution; Feed carbon dioxide and carry out crystallization, recrystallization temperature is 50 ℃-70 ℃; By whizzer do liquid-solid separate crystal aluminium hydroxide; Crystal aluminium hydroxide is carried out high-temperature roasting become alumina product, 1100 ℃-1200 ℃ of temperature of charge.
Patent ZL200610049387.5 discloses a kind of method of utilizing aluminium ash prepare aluminium hydroxide, and it may further comprise the steps: 1. with aluminium ash and solid sodium carbonate by weight 100: (80-120) mix stirring; 2. with solid mixture under 900 ℃ of-1500 ℃ of conditions fusion 1-5 hour; 3. melts is put into clear water and soaked more than 10 hours, remove remaining sodium aluminate solution behind the throw out; 4. sodium aluminate in molar ratio: sulfuric acid is 2: (0.9-1.1) add sulfuric acid in sodium aluminate solution; 5. use strainer to carry out solid-liquid separation, obtain aluminum hydroxide precipitate and metabisulfite solution respectively; 6. aluminum hydroxide precipitate is promptly obtained the aluminium hydroxide finished product after dry under 20-80 ℃ the temperature and pulverizing.
But above-mentioned technology has the following disadvantages: (1) does not consider the direct recovery of aluminium in the aluminium ash when reclaiming aluminum oxide, allows the metallic aluminium in the aluminium ash return to the flow process of extracting aluminum oxide, has wasted the alkali and the energy consumption of dissolved aluminum; (2) do not consider muriatic recycling in the aluminium ash; (3) technical process complexity, less economical.
Summary of the invention
Purpose of the present invention is exactly the deficiency that exists at above-mentioned prior art, provides that a kind of technical process is short, easy to operate, aluminium and muriatic method in the extraction aluminium ash that is easy to industrial implementation.
The objective of the invention is to be achieved through the following technical solutions.
Aluminium and muriatic method in a kind of extraction aluminium ash, it is characterized in that its leaching process for aluminium ash heating is melted the aluminium in the aluminium ash fully and with the slag layering after, casting is directly sent in the sucking-off of aluminium liquid; The slag water is leached the muriate dissolving that makes in the aluminium ash enter in the water, carry out solid-liquid separation again; The evaporation liquid phase obtains the muriate crystallization, and solid phase is as the raw material production aluminum oxide.
Aluminium and muriatic method in a kind of extraction aluminium ash of the present invention, the temperature when it is characterized in that described heating aluminium ash deposite metal aluminium is 650-800 ℃.
Aluminium and muriatic method in a kind of extraction aluminium ash of the present invention, the extraction time that it is characterized in that described slag water leaching process is 60-180min, leaches the solid-liquid weight ratio to be: 1: 2-1: 20.
Aluminium and muriatic method in a kind of extraction aluminium ash of the present invention is characterized in that it is 100-200 ℃ that described evaporation liquid phase obtains muriate crystalline vaporization temperature.
Method of the present invention is handled the aluminium ash, technical process is short, easy to operate, be easy to industrial implementation, can extract various valuable constituents in the aluminium ash, the recyclable about 85-255 kilogram aluminium liquid of one ton of aluminium of every processing ash, about 80-240 kilogram muriate and salic solid material, specifically contained metallic aluminium is relevant with muriatic content in yield and the aluminium ash.This method synthesis utility value height, rate of recovery height, the rate of recovery of metallic aluminium is greater than 85% in the aluminium ash, and the chloride recovery rate is greater than 80%.
Embodiment
Aluminium and muriatic method in a kind of extraction aluminium ash, its process comprises: the aluminium ash is heated to 650-800 ℃, the aluminium in the aluminium ash is melted fully and with the slag layering after, casting is directly sent in the sucking-off of aluminium liquid, reclaim slag; The slag water is leached the muriate dissolving that makes in the aluminium ash enter in the water, carry out solid-liquid separation again, reclaim solid phase and liquid phase, extraction time 60-180min, leaching the solid-liquid weight ratio is 1: 2-1: 20; Liquid phase reclaims muriate at 100-200 ℃ of following evaporative crystallization, and solid phase is as the raw material of producing aluminum oxide.
Below in conjunction with example method of the present invention is described further.
Embodiment 1
With 5000 gram containing metal aluminium 20%, the aluminium ash of muriate 20% is heated to 650 ℃, stir in the heat-processed, by the time the aluminium in the aluminium ash melt fully and with the slag layering after, sucking-off aluminium liquid is sent to casting, reclaims slag.The slag water is leached 180min, and leaching the solid-liquid weight ratio is 1: 20, stirs in the leaching process, and the muriate dissolving in the aluminium ash is entered in the water, carries out solid-liquid separation, reclaims solid phase and liquid phase.Liquid phase reclaims muriate at 100 ℃ of following evaporative crystallizations, and the muriate composition is mainly sodium-chlor, Repone K and magnesium chloride, can directly return casting process as refining flux; The main salic and silicon-dioxide of solid phase can be directly as the raw material production aluminum oxide.Through to the regenerant computation weigh-, reclaim metallic aluminium 860.7 grams, reclaim muriate 915.5 grams, reclaim salic solid material 3159.6 grams.
Embodiment 2
With 5000 gram containing metal aluminium 11.5%, the aluminium ash of muriate 13.2% is heated to 800 ℃, stir in the heat-processed, by the time the aluminium in the aluminium ash melt fully and with the slag layering after, sucking-off aluminium liquid is also sent to casting, reclaims slag.The slag water is leached 60min, leach the solid-liquid weight ratio and be and in leaching process stir at 1: 2, the muriate dissolving in the aluminium ash is entered in the water, carry out solid-liquid separation, reclaim solid phase and liquid phase.Liquid phase reclaims muriate at 150 ℃ of following evaporative crystallizations, and the muriate main component is sodium-chlor, Repone K and magnesium chloride, can directly return casting process as refining flux; The main salic and silicon-dioxide of solid phase can be directly as the raw material production aluminum oxide.Through to the regenerant computation weigh-, reclaim metallic aluminium 529.3 grams, reclaim muriate 547.5 grams, reclaim salic solid material 3727.9 grams.
Embodiment 3
With 5000 gram containing metal aluminium 25.7%, the aluminium ash of muriate 23.5% is heated to 750 ℃, stir in the heat-processed, by the time the aluminium in the aluminium ash melt fully and with the slag layering after, sucking-off aluminium liquid is also sent to casting, reclaims slag.The slag water is leached 100min, leach the solid-liquid weight ratio and be and in leaching process stir at 1: 10, the muriate dissolving in the aluminium ash is entered in the water, carry out solid-liquid separation, reclaim solid phase and liquid phase.Liquid phase reclaims muriate at 120 ℃ of following evaporative crystallizations, and the muriate main component is sodium-chlor, Repone K and magnesium chloride, can directly return casting process as refining flux; The main salic and silicon-dioxide of solid phase can be directly as the raw material production aluminum oxide.Through to the regenerant computation weigh-, reclaim metallic aluminium 1143.7 grams, reclaim muriate 1022.55 grams, reclaim salic solid material 2748.7 grams.
Claims (4)
1. one kind is extracted aluminium and muriatic method in the aluminium ash, it is characterized in that its leaching process for the heating of aluminium ash is melted the aluminium in the aluminium ash fully and with the slag layering after, casting is directly sent in the sucking-off of aluminium liquid; The slag water is leached the muriate dissolving that makes in the aluminium ash enter in the water, carry out solid-liquid separation again; The evaporation liquid phase obtains the muriate crystallization, and solid phase is as the raw material production aluminum oxide.
2. aluminium and muriatic method in a kind of extraction aluminium ash according to claim 1, the temperature when it is characterized in that described heating aluminium ash deposite metal aluminium is 650-800 ℃.
3. aluminium and muriatic method in a kind of extraction aluminium ash according to claim 1, the extraction time that it is characterized in that described slag water leaching process is 60-180min, leaches the solid-liquid weight ratio to be: 1: 2-1: 20.
4. aluminium and muriatic method in a kind of extraction aluminium ash according to claim 1 is characterized in that it is 100-200 ℃ that described evaporation liquid phase obtains muriate crystalline vaporization temperature.
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| CN200810115443XA CN101307388B (en) | 2008-06-24 | 2008-06-24 | Process for extracting aluminium and chlorides in aluminium ash |
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| CN200810115443XA CN101307388B (en) | 2008-06-24 | 2008-06-24 | Process for extracting aluminium and chlorides in aluminium ash |
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| CN101307388A CN101307388A (en) | 2008-11-19 |
| CN101307388B true CN101307388B (en) | 2011-04-13 |
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Cited By (1)
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| CN103680204A (en) * | 2013-12-11 | 2014-03-26 | 苏州翊高科技有限公司 | Parking space guiding device with object guiding function |
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| CN103060566A (en) * | 2011-10-21 | 2013-04-24 | 湖南创元铝业有限公司 | Method for recovering aluminum oxide, chlorine salt and villiaumite from aluminum ash |
| CN102502665A (en) * | 2011-11-22 | 2012-06-20 | 中国铝业股份有限公司 | Method for comprehensively recovering valuable elements in coal ash |
| CN104232933B (en) * | 2014-09-19 | 2015-09-16 | 湖州安达汽车配件有限公司 | A kind of aluminium melting technology |
| CN104263990B (en) * | 2014-09-19 | 2016-06-08 | 湖州安达汽车配件有限公司 | A kind of reinforced aluminum smelting technology |
| CN105271327B (en) * | 2014-09-26 | 2017-04-05 | 昆明冶金研究院 | A kind of aluminum ash harmless treatment the method for recycling |
| CN104261445B (en) * | 2014-09-26 | 2015-10-28 | 昆明冶金研究院 | A kind of harmless treatment aluminium ash also prepares the method for sandy alumina |
| CN104498719A (en) * | 2014-12-17 | 2015-04-08 | 上海大学 | Method for extracting and purifying metal aluminum from eddy current separated materials of municipal refuse incinerator |
| CN104988313A (en) * | 2015-03-12 | 2015-10-21 | 王宇栋 | Method for separating fluorine, chlorine and nitrogen compounds in aluminum ash through vacuum metallurgy method |
| CN105274346A (en) * | 2015-09-28 | 2016-01-27 | 昆明冶金研究院 | Aluminum ash recycling process |
| CN105483754B (en) * | 2015-12-18 | 2018-08-07 | 云南云铝润鑫铝业有限公司 | A kind of preparation method of aluminium electrolysis anode cladding system |
| CN112830508A (en) * | 2021-01-29 | 2021-05-25 | 郑州大学 | Method for preparing aluminum hydroxide by using aluminum ash denitrification and fluorine fixation clinker |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101177292A (en) * | 2007-12-17 | 2008-05-14 | 中国铝业股份有限公司 | Production method of oxygen-containing beta aluminum fluoride for aluminum electrolysis bath by using aluminium scruff ash |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101177292A (en) * | 2007-12-17 | 2008-05-14 | 中国铝业股份有限公司 | Production method of oxygen-containing beta aluminum fluoride for aluminum electrolysis bath by using aluminium scruff ash |
Non-Patent Citations (2)
| Title |
|---|
| 苏鸿英.铝灰加工的技术发展趋势.中国有色金属 3.2008,(3),72. |
| 苏鸿英.铝灰加工的技术发展趋势.中国有色金属 3.2008,(3),72. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103680204A (en) * | 2013-12-11 | 2014-03-26 | 苏州翊高科技有限公司 | Parking space guiding device with object guiding function |
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