NO304748B1 - Fremgangsmaate for regulering og stabilisering av AlF3-innhold i en aluminiumelektrolysecelle - Google Patents
Fremgangsmaate for regulering og stabilisering av AlF3-innhold i en aluminiumelektrolysecelle Download PDFInfo
- Publication number
- NO304748B1 NO304748B1 NO911708A NO911708A NO304748B1 NO 304748 B1 NO304748 B1 NO 304748B1 NO 911708 A NO911708 A NO 911708A NO 911708 A NO911708 A NO 911708A NO 304748 B1 NO304748 B1 NO 304748B1
- Authority
- NO
- Norway
- Prior art keywords
- aif3
- days
- content
- procedure
- supply
- Prior art date
Links
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminium flouride Chemical compound F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 title claims description 99
- 238000000034 method Methods 0.000 title claims description 19
- 229910052782 aluminium Inorganic materials 0.000 title claims description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 15
- 238000005868 electrolysis reaction Methods 0.000 title claims description 13
- 230000033228 biological regulation Effects 0.000 title claims description 3
- 230000006641 stabilisation Effects 0.000 title description 2
- 238000011105 stabilization Methods 0.000 title description 2
- 101100004392 Arabidopsis thaliana BHLH147 gene Proteins 0.000 claims description 81
- 239000003792 electrolyte Substances 0.000 claims description 20
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 claims description 20
- 238000012821 model calculation Methods 0.000 claims description 12
- 235000013024 sodium fluoride Nutrition 0.000 claims description 10
- 239000011775 sodium fluoride Substances 0.000 claims description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 229910001610 cryolite Inorganic materials 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims 1
- 230000001934 delay Effects 0.000 claims 1
- 238000006386 neutralization reaction Methods 0.000 claims 1
- 238000007670 refining Methods 0.000 claims 1
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 description 16
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 12
- 238000007792 addition Methods 0.000 description 10
- 239000000654 additive Substances 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- -1 sodium aluminum fluoride compound Chemical class 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 2
- CAVCGVPGBKGDTG-UHFFFAOYSA-N alumanylidynemethyl(alumanylidynemethylalumanylidenemethylidene)alumane Chemical compound [Al]#C[Al]=C=[Al]C#[Al] CAVCGVPGBKGDTG-UHFFFAOYSA-N 0.000 description 2
- 239000000729 antidote Substances 0.000 description 2
- 229910001634 calcium fluoride Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000002001 electrolyte material Substances 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 239000002000 Electrolyte additive Substances 0.000 description 1
- 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 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/20—Automatic control or regulation of cells
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH152790 | 1990-05-04 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO911708D0 NO911708D0 (no) | 1991-04-30 |
| NO911708L NO911708L (no) | 1991-11-05 |
| NO304748B1 true NO304748B1 (no) | 1999-02-08 |
Family
ID=4212527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO911708A NO304748B1 (no) | 1990-05-04 | 1991-04-30 | Fremgangsmaate for regulering og stabilisering av AlF3-innhold i en aluminiumelektrolysecelle |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5094728A (de) |
| EP (1) | EP0455590B1 (de) |
| AU (1) | AU643006B2 (de) |
| CA (1) | CA2041440A1 (de) |
| DE (1) | DE59105830D1 (de) |
| ES (1) | ES2075401T3 (de) |
| IS (1) | IS1632B (de) |
| NO (1) | NO304748B1 (de) |
| ZA (1) | ZA913260B (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19805619C2 (de) * | 1998-02-12 | 2002-08-01 | Heraeus Electro Nite Int | Verfahren zur Regelung des AlF¶3¶-Gehaltes in Kryolithschmelzen |
| FR2821363B1 (fr) * | 2001-02-28 | 2003-04-25 | Pechiney Aluminium | Procede de regulation d'une cellule d'electrolyse |
| FR2821364B1 (fr) * | 2001-02-28 | 2004-04-09 | Pechiney Aluminium | Procede de regulation d'une cellule d'electrolyse |
| EP1344847A1 (de) * | 2001-12-03 | 2003-09-17 | Alcan Technology & Management AG | Regulierung einer Aluminiumelektrolysezelle |
| RU2284377C2 (ru) * | 2004-01-05 | 2006-09-27 | Открытое акционерное общество "Сибирский научно-исследовательский, конструкторский и проектный институт алюминиевой и электродной промышленности" (ОАО "СибВАМИ") | Способ отбора проб электролита из электролизера для производства алюминия |
| US9771659B2 (en) * | 2013-03-13 | 2017-09-26 | Alcoa Usa Corp. | Systems and methods of protecting electrolysis cell sidewalls |
| CN104451779B (zh) * | 2014-12-17 | 2017-01-18 | 湖南创元铝业有限公司 | 铝电解槽氟化铝控制方法 |
| WO2020190271A1 (en) * | 2019-03-16 | 2020-09-24 | General Electric Company | System and method for controlling of smelting pot line |
| CN117133366B (zh) * | 2023-08-28 | 2026-01-02 | 中国铝业股份有限公司 | 一种铝电解槽中氟化铝添加量的计算方法 |
| CN117210879B (zh) * | 2023-10-12 | 2025-02-11 | 中国铝业股份有限公司 | 一种铝电解槽用氟化铝添加量计算方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3380897A (en) * | 1964-11-16 | 1968-04-30 | Reynolds Metals Co | Method of determining ore concentration |
| US3471390A (en) * | 1965-03-24 | 1969-10-07 | Reynolds Metals Co | Alumina concentration meter |
| NO166821C (no) * | 1985-02-21 | 1991-09-04 | Aardal & Sunndal Verk As | Fremgangsmaate for styring av aluminiumoksyd-tilfoerselen til elektrolyseovner for fremstilling av aluminium. |
| EP0195142B1 (de) * | 1985-03-18 | 1988-09-07 | Alcan International Limited | Verfahren zur Steuerung der Zuführung von AlF3 zu einer Aluminiumreduktionszelle |
| FR2581660B1 (fr) * | 1985-05-07 | 1987-06-05 | Pechiney Aluminium | Procede de regulation precise d'une faible teneur en alumine dans une cuve d'electrolyse ignee pour la production d'aluminium |
| US4654130A (en) * | 1986-05-15 | 1987-03-31 | Reynolds Metals Company | Method for improved alumina control in aluminum electrolytic cells employing point feeders |
| US4814050A (en) * | 1986-10-06 | 1989-03-21 | Aluminum Company Of America | Estimation and control of alumina concentration in hall cells |
| FR2620738B1 (fr) * | 1987-09-18 | 1989-11-24 | Pechiney Aluminium | Procede de regulation de l'acidite du bain d'electrolyse par recyclage des produits fluores emis par les cuves d'electrolyse hall-heroult |
-
1991
- 1991-04-24 DE DE59105830T patent/DE59105830D1/de not_active Expired - Fee Related
- 1991-04-24 EP EP91810305A patent/EP0455590B1/de not_active Expired - Lifetime
- 1991-04-24 ES ES91810305T patent/ES2075401T3/es not_active Expired - Lifetime
- 1991-04-29 US US07/693,939 patent/US5094728A/en not_active Expired - Fee Related
- 1991-04-29 AU AU76015/91A patent/AU643006B2/en not_active Ceased
- 1991-04-29 CA CA002041440A patent/CA2041440A1/en not_active Abandoned
- 1991-04-30 NO NO911708A patent/NO304748B1/no not_active IP Right Cessation
- 1991-04-30 ZA ZA913260A patent/ZA913260B/xx unknown
- 1991-05-02 IS IS3698A patent/IS1632B/is unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IS3698A7 (is) | 1991-11-05 |
| ZA913260B (en) | 1992-01-29 |
| NO911708L (no) | 1991-11-05 |
| US5094728A (en) | 1992-03-10 |
| EP0455590B1 (de) | 1995-06-28 |
| AU7601591A (en) | 1991-11-07 |
| IS1632B (is) | 1996-07-19 |
| ES2075401T3 (es) | 1995-10-01 |
| AU643006B2 (en) | 1993-11-04 |
| CA2041440A1 (en) | 1991-11-05 |
| EP0455590A1 (de) | 1991-11-06 |
| DE59105830D1 (de) | 1995-08-03 |
| NO911708D0 (no) | 1991-04-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM1K | Lapsed by not paying the annual fees |
Free format text: LAPSED IN OCTOBER 2003 |