AU603672B2 - Method of treating by silicopyrohydrolysis worn linings from hall-heroult electrolysis tanks - Google Patents
Method of treating by silicopyrohydrolysis worn linings from hall-heroult electrolysis tanks Download PDFInfo
- Publication number
- AU603672B2 AU603672B2 AU16787/88A AU1678788A AU603672B2 AU 603672 B2 AU603672 B2 AU 603672B2 AU 16787/88 A AU16787/88 A AU 16787/88A AU 1678788 A AU1678788 A AU 1678788A AU 603672 B2 AU603672 B2 AU 603672B2
- Authority
- AU
- Australia
- Prior art keywords
- reactor
- water
- carbon
- linings
- silica
- 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.)
- Ceased
Links
- 238000000034 method Methods 0.000 title claims description 48
- 238000005868 electrolysis reaction Methods 0.000 title claims description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 69
- 239000011734 sodium Substances 0.000 claims description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 229910001868 water Inorganic materials 0.000 claims description 37
- 239000000377 silicon dioxide Substances 0.000 claims description 32
- 239000002699 waste material Substances 0.000 claims description 26
- 229910052799 carbon Inorganic materials 0.000 claims description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 23
- 239000007789 gas Substances 0.000 claims description 23
- 229910052760 oxygen Inorganic materials 0.000 claims description 23
- 239000001301 oxygen Substances 0.000 claims description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 21
- 150000001875 compounds Chemical class 0.000 claims description 21
- 229910052708 sodium Inorganic materials 0.000 claims description 20
- 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 claims description 19
- 239000000203 mixture Substances 0.000 claims description 18
- 239000011575 calcium Substances 0.000 claims description 16
- 239000011737 fluorine Substances 0.000 claims description 16
- 229910052731 fluorine Inorganic materials 0.000 claims description 16
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 14
- 229910052791 calcium Inorganic materials 0.000 claims description 13
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 12
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 11
- 239000004411 aluminium Substances 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 239000007791 liquid phase Substances 0.000 claims description 10
- 238000002485 combustion reaction Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 150000004760 silicates Chemical class 0.000 claims description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 8
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 8
- 239000000779 smoke Substances 0.000 claims description 8
- 239000004115 Sodium Silicate Substances 0.000 claims description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 229910052664 nepheline Inorganic materials 0.000 claims description 6
- 239000010434 nepheline Substances 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 5
- 239000011707 mineral Substances 0.000 claims description 5
- 229910052661 anorthite Inorganic materials 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 4
- GWWPLLOVYSCJIO-UHFFFAOYSA-N dialuminum;calcium;disilicate Chemical compound [Al+3].[Al+3].[Ca+2].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] GWWPLLOVYSCJIO-UHFFFAOYSA-N 0.000 claims description 4
- 229910001385 heavy metal Inorganic materials 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000007792 gaseous phase Substances 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 235000019351 sodium silicates Nutrition 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 5
- 239000012071 phase Substances 0.000 claims 4
- 238000009434 installation Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 14
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 239000011775 sodium fluoride Substances 0.000 description 7
- 235000013024 sodium fluoride Nutrition 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 229910004261 CaF 2 Inorganic materials 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 150000002825 nitriles Chemical class 0.000 description 6
- 150000002222 fluorine compounds Chemical class 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 5
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 238000002309 gasification Methods 0.000 description 4
- 229960002050 hydrofluoric acid Drugs 0.000 description 4
- MNWBNISUBARLIT-UHFFFAOYSA-N sodium cyanide Chemical compound [Na+].N#[C-] MNWBNISUBARLIT-UHFFFAOYSA-N 0.000 description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 4
- 229910052911 sodium silicate Inorganic materials 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 229910016569 AlF 3 Inorganic materials 0.000 description 2
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminium flouride Chemical compound F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 235000013980 iron oxide Nutrition 0.000 description 2
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- -1 soda silicates Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910004706 CaSi2 Inorganic materials 0.000 description 1
- 241000543381 Cliftonia monophylla Species 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910021333 Na2Si Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000001033 granulometry Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 1
- 239000010742 number 1 fuel oil Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000011268 retreatment Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 150000004684 trihydrates Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/191—Hydrogen fluoride
-
- 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
- C01B33/20—Silicates
- C01B33/32—Alkali metal silicates
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Treating Waste Gases (AREA)
- Electrolytic Production Of Metals (AREA)
- Removal Of Specific Substances (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Silicon Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8708012A FR2615764B1 (fr) | 1987-06-01 | 1987-06-01 | Procede de traitement, par silicopyrohydrolyse, de brasquages uses provenant de cuves d'electrolyse hall-heroult |
| FR8708012 | 1987-06-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU1678788A AU1678788A (en) | 1988-12-01 |
| AU603672B2 true AU603672B2 (en) | 1990-11-22 |
Family
ID=9351847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU16787/88A Ceased AU603672B2 (en) | 1987-06-01 | 1988-05-31 | Method of treating by silicopyrohydrolysis worn linings from hall-heroult electrolysis tanks |
Country Status (17)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU626620B2 (en) * | 1989-01-25 | 1992-08-06 | Skf Plasma Technologies Ab | A process and a device for transferring leachable substances in waste material into gas or leach stable compounds |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2664297B1 (fr) * | 1990-07-04 | 1992-09-11 | Pechiney Aluminium | Procede de traitement par choc thermique de brasquages uses provenant de cuves d'electrolyse hall-heroult. |
| NO176648C (no) * | 1991-11-07 | 1995-05-10 | Elkem Technology | Fremgangsmåte for behandling av brukte katodebunner |
| RU2141076C1 (ru) * | 1993-04-06 | 1999-11-10 | Осмелт Лимитед | Способ обработки углеродсодержащего материала |
| RU2247160C1 (ru) * | 2003-11-24 | 2005-02-27 | Поляков Пётр Васильевич | Способ переработки фторуглеродсодержащих отходов электролитического производства алюминия |
| CN101804996B (zh) * | 2010-04-02 | 2011-12-21 | 北京矿冶研究总院 | 一种从电解铝废阴极炭块中回收氟化钠的方法 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU8130887A (en) * | 1986-12-22 | 1988-06-23 | Comalco Aluminium Limited | Recovery of fluoride values from waste materials |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2338336A1 (fr) * | 1976-01-13 | 1977-08-12 | Pechiney Aluminium | Nouveau procede de brasquage des cuves pour electrolyse ignee |
| US4113832A (en) * | 1977-11-28 | 1978-09-12 | Kaiser Aluminum & Chemical Corporation | Process for the utilization of waste materials from electrolytic aluminum reduction systems |
| US4160808A (en) * | 1978-05-30 | 1979-07-10 | Andersen John N | Pyrohydrolysis process for spent aluminum reduction cell linings |
| DE2942439C2 (de) * | 1979-10-20 | 1981-10-15 | Vereinigte Aluminium-Werke Ag, 5300 Bonn | Verfahren und Vorrichtung zur Gewinnung von Fluorwasserstoff aus fluorhaltigen Materialien durch Pyrohydrolyse |
-
1987
- 1987-06-01 FR FR8708012A patent/FR2615764B1/fr not_active Expired
-
1988
- 1988-05-26 IN IN429/CAL/88A patent/IN169595B/en unknown
- 1988-05-26 ES ES198888420169T patent/ES2027410T3/es not_active Expired - Lifetime
- 1988-05-26 EP EP88420169A patent/EP0294300B1/fr not_active Expired - Lifetime
- 1988-05-26 DE DE8888420169T patent/DE3867130D1/de not_active Expired - Fee Related
- 1988-05-27 ZA ZA883823A patent/ZA883823B/xx unknown
- 1988-05-27 NZ NZ224814A patent/NZ224814A/xx unknown
- 1988-05-27 RU SU884355818A patent/RU1782226C/ru active
- 1988-05-30 IS IS3352A patent/IS1513B/is unknown
- 1988-05-30 CA CA000568138A patent/CA1334049C/fr not_active Expired - Fee Related
- 1988-05-30 NO NO882373A patent/NO166922C/no unknown
- 1988-05-31 HU HU882777A patent/HU204717B/hu not_active IP Right Cessation
- 1988-05-31 CN CN88103256A patent/CN1013248B/zh not_active Expired
- 1988-05-31 YU YU105488A patent/YU46337B/sh unknown
- 1988-05-31 AU AU16787/88A patent/AU603672B2/en not_active Ceased
- 1988-05-31 BR BR8802626A patent/BR8802626A/pt not_active Application Discontinuation
-
1991
- 1991-12-30 GR GR91401923T patent/GR3003448T3/el unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU8130887A (en) * | 1986-12-22 | 1988-06-23 | Comalco Aluminium Limited | Recovery of fluoride values from waste materials |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU626620B2 (en) * | 1989-01-25 | 1992-08-06 | Skf Plasma Technologies Ab | A process and a device for transferring leachable substances in waste material into gas or leach stable compounds |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2027410T3 (es) | 1992-06-01 |
| EP0294300B1 (fr) | 1991-12-27 |
| HUT48138A (en) | 1989-05-29 |
| IS1513B (is) | 1992-11-04 |
| YU105488A (en) | 1989-06-30 |
| BR8802626A (pt) | 1988-12-27 |
| GR3003448T3 (en) | 1993-02-17 |
| EP0294300A1 (fr) | 1988-12-07 |
| NO166922B (no) | 1991-06-10 |
| HU204717B (en) | 1992-02-28 |
| FR2615764A1 (fr) | 1988-12-02 |
| NZ224814A (en) | 1991-02-26 |
| NO166922C (no) | 1991-09-18 |
| CN88103256A (zh) | 1988-12-14 |
| IN169595B (enrdf_load_stackoverflow) | 1991-11-16 |
| IS3352A7 (is) | 1988-12-02 |
| DE3867130D1 (de) | 1992-02-06 |
| FR2615764B1 (fr) | 1989-08-18 |
| NO882373L (no) | 1988-12-02 |
| NO882373D0 (no) | 1988-05-30 |
| YU46337B (sh) | 1993-05-28 |
| RU1782226C (ru) | 1992-12-15 |
| CA1334049C (fr) | 1995-01-24 |
| AU1678788A (en) | 1988-12-01 |
| CN1013248B (zh) | 1991-07-24 |
| ZA883823B (en) | 1989-02-22 |
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