CN112692042A - 一种铝电解槽废耐火材料处理工艺及其系统 - Google Patents
一种铝电解槽废耐火材料处理工艺及其系统 Download PDFInfo
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- CN112692042A CN112692042A CN202011423511.6A CN202011423511A CN112692042A CN 112692042 A CN112692042 A CN 112692042A CN 202011423511 A CN202011423511 A CN 202011423511A CN 112692042 A CN112692042 A CN 112692042A
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- leaching
- fluorine
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- 239000002699 waste material Substances 0.000 title claims abstract description 53
- 239000011819 refractory material Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 36
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 35
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 230000008569 process Effects 0.000 title claims abstract description 29
- 238000005868 electrolysis reaction Methods 0.000 title claims description 16
- 238000002386 leaching Methods 0.000 claims abstract description 404
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 228
- 239000011737 fluorine Substances 0.000 claims abstract description 228
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 196
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 176
- 238000001556 precipitation Methods 0.000 claims abstract description 159
- 239000007788 liquid Substances 0.000 claims abstract description 148
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 claims abstract description 132
- 229910001634 calcium fluoride Inorganic materials 0.000 claims abstract description 70
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract description 66
- 239000000779 smoke Substances 0.000 claims abstract description 56
- 125000001153 fluoro group Chemical group F* 0.000 claims abstract description 48
- 239000003513 alkali Substances 0.000 claims abstract description 40
- 239000002893 slag Substances 0.000 claims abstract description 30
- 238000000926 separation method Methods 0.000 claims abstract description 27
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 19
- 239000007787 solid Substances 0.000 claims abstract description 13
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims abstract description 10
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 9
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 9
- 239000004571 lime Substances 0.000 claims abstract description 9
- 230000001590 oxidative effect Effects 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 164
- 239000000243 solution Substances 0.000 claims description 117
- 239000000706 filtrate Substances 0.000 claims description 85
- 230000008929 regeneration Effects 0.000 claims description 84
- 238000011069 regeneration method Methods 0.000 claims description 84
- 238000006386 neutralization reaction Methods 0.000 claims description 62
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 56
- 239000003546 flue gas Substances 0.000 claims description 56
- 239000002002 slurry Substances 0.000 claims description 51
- 238000005406 washing Methods 0.000 claims description 47
- 238000001914 filtration Methods 0.000 claims description 46
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 36
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 36
- 238000007654 immersion Methods 0.000 claims description 34
- 239000000920 calcium hydroxide Substances 0.000 claims description 29
- 230000001376 precipitating effect Effects 0.000 claims description 27
- 238000004064 recycling Methods 0.000 claims description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 26
- 238000003756 stirring Methods 0.000 claims description 26
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 25
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 25
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 25
- 239000011575 calcium Substances 0.000 claims description 22
- 239000000292 calcium oxide Substances 0.000 claims description 18
- 235000012255 calcium oxide Nutrition 0.000 claims description 18
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 16
- 239000010440 gypsum Substances 0.000 claims description 16
- 231100000419 toxicity Toxicity 0.000 claims description 16
- 230000001988 toxicity Effects 0.000 claims description 16
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 14
- 229910052791 calcium Inorganic materials 0.000 claims description 14
- 239000012670 alkaline solution Substances 0.000 claims description 13
- 238000000227 grinding Methods 0.000 claims description 13
- 238000000498 ball milling Methods 0.000 claims description 12
- 229910052602 gypsum Inorganic materials 0.000 claims description 12
- 239000000284 extract Substances 0.000 claims description 11
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 10
- 229910001424 calcium ion Inorganic materials 0.000 claims description 10
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 8
- 238000007670 refining Methods 0.000 claims description 8
- 238000012216 screening Methods 0.000 claims description 8
- 239000004155 Chlorine dioxide Substances 0.000 claims description 6
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- -1 fluoride ions Chemical class 0.000 claims description 6
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 230000035484 reaction time Effects 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 6
- 235000019504 cigarettes Nutrition 0.000 claims description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- 239000004480 active ingredient Substances 0.000 claims description 4
- 239000012295 chemical reaction liquid Substances 0.000 claims description 4
- 229910001385 heavy metal Inorganic materials 0.000 claims description 4
- 239000007800 oxidant agent Substances 0.000 claims description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 3
- 235000011152 sodium sulphate Nutrition 0.000 claims description 3
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 claims description 2
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 2
- 150000007522 mineralic acids Chemical class 0.000 claims description 2
- 238000004062 sedimentation Methods 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 2
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 238000001784 detoxification Methods 0.000 abstract description 12
- 239000011734 sodium Substances 0.000 abstract description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract description 4
- 229910052708 sodium Inorganic materials 0.000 abstract description 4
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 abstract description 2
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 239000002910 solid waste Substances 0.000 description 12
- 238000003825 pressing Methods 0.000 description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 10
- 239000000428 dust Substances 0.000 description 9
- 239000002920 hazardous waste Substances 0.000 description 9
- 229910052799 carbon Inorganic materials 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 8
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 6
- 239000011449 brick Substances 0.000 description 6
- 239000012065 filter cake Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000004566 building material Substances 0.000 description 4
- 231100001261 hazardous Toxicity 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000011085 pressure filtration Methods 0.000 description 4
- 230000001698 pyrogenic effect Effects 0.000 description 4
- 235000013024 sodium fluoride Nutrition 0.000 description 4
- 239000011775 sodium fluoride Substances 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000006477 desulfuration reaction Methods 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 229910017053 inorganic salt Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- CYUOWZRAOZFACA-UHFFFAOYSA-N aluminum iron Chemical compound [Al].[Fe] CYUOWZRAOZFACA-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 229910001610 cryolite Inorganic materials 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- ZODDGFAZWTZOSI-UHFFFAOYSA-N nitric acid;sulfuric acid Chemical compound O[N+]([O-])=O.OS(O)(=O)=O ZODDGFAZWTZOSI-UHFFFAOYSA-N 0.000 description 2
- 230000033116 oxidation-reduction process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000012066 reaction slurry Substances 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
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- 238000005188 flotation Methods 0.000 description 1
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- 239000002184 metal Substances 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B1/00—Dumping solid waste
- B09B1/004—Covering of dumping sites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- 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
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/20—Halides
- C01F11/22—Fluorides
-
- 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
- C04B18/0481—Other specific industrial waste materials not provided for elsewhere in C04B18/00
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Removal Of Specific Substances (AREA)
Abstract
Description
成分 | C | NaF | Al<sub>2</sub>O<sub>3</sub> | SiO<sub>2</sub> | CaO |
% | 2.8 | 7.36 | 29.85 | 45.19 | 6.86 |
成分 | MgO | CaF<sub>2</sub> | 铝铁合金 | Na<sub>3</sub>AlF<sub>6</sub> | CN<sup>-</sup> |
% | 2.81 | 0.82 | 0.8 | 3.49 | 0.01 |
成分 | C | NaF | Al<sub>2</sub>O<sub>3</sub> | SiO<sub>2</sub> | CaO |
% | 5.6 | 9.29 | 26.83 | 41.78 | 6.53 |
成分 | MgO | CaF<sub>2</sub> | 铝铁合金 | Na<sub>3</sub>AlF<sub>6</sub> | CN<sup>-</sup> |
% | 3.02 | 0.76 | 1.2 | 4.94 | 0.05 |
Claims (4)
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CN202011423511.6A CN112692042B (zh) | 2020-12-08 | 2020-12-08 | 一种铝电解槽废耐火材料处理工艺及其系统 |
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CN202011423511.6A CN112692042B (zh) | 2020-12-08 | 2020-12-08 | 一种铝电解槽废耐火材料处理工艺及其系统 |
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CN112692042A true CN112692042A (zh) | 2021-04-23 |
CN112692042B CN112692042B (zh) | 2022-05-24 |
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Cited By (8)
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CN113415797A (zh) * | 2021-06-16 | 2021-09-21 | 广西博世科环保科技股份有限公司 | 一种铝电解槽废阴极炭块处理工艺 |
CN113426807A (zh) * | 2021-06-29 | 2021-09-24 | 云南云铝润鑫铝业有限公司 | 铝电解危废渣联合处理和资源综合利用方法 |
CN113426808A (zh) * | 2021-06-29 | 2021-09-24 | 云南云铝润鑫铝业有限公司 | 一种铝电解大修渣加压碱浸回收氟化盐的方法 |
CN113732009A (zh) * | 2021-08-13 | 2021-12-03 | 广西博世科环保科技股份有限公司 | 一种大修渣废耐火材料长期稳定化及资源化方法 |
CN113800539A (zh) * | 2021-08-18 | 2021-12-17 | 广西博世科环保科技股份有限公司 | 一种大修渣湿法浸出液中盐提纯回收工艺 |
CN114149099A (zh) * | 2021-07-29 | 2022-03-08 | 广西博世科环保科技股份有限公司 | 一种铝电解槽大修渣湿法处理废水的深度除氟工艺 |
CN114377338A (zh) * | 2021-12-28 | 2022-04-22 | 郑州鸿跃环保科技有限公司 | 一种对铝电解槽大修渣进行脱毒的处理系统及处理方法 |
CN115465877A (zh) * | 2022-10-27 | 2022-12-13 | 云南云铝润鑫铝业有限公司 | 电解铝大修渣协同脱硫石膏制备氟化钙的方法及其用途 |
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