CH615700A5 - Method for operating a cell for the electrolytic decomposition of alumina into aluminium metal - Google Patents
Method for operating a cell for the electrolytic decomposition of alumina into aluminium metal Download PDFInfo
- Publication number
- CH615700A5 CH615700A5 CH864474A CH864474A CH615700A5 CH 615700 A5 CH615700 A5 CH 615700A5 CH 864474 A CH864474 A CH 864474A CH 864474 A CH864474 A CH 864474A CH 615700 A5 CH615700 A5 CH 615700A5
- Authority
- CH
- Switzerland
- Prior art keywords
- alumina
- bath
- cell
- anode
- carbon
- Prior art date
Links
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims description 159
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 61
- 229910052782 aluminium Inorganic materials 0.000 title claims description 50
- 238000000034 method Methods 0.000 title claims description 31
- 229910052751 metal Inorganic materials 0.000 title claims description 14
- 239000002184 metal Substances 0.000 title claims description 14
- 238000000354 decomposition reaction Methods 0.000 title claims description 7
- 239000004411 aluminium Substances 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 87
- 229910001868 water Inorganic materials 0.000 claims description 79
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 60
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminium flouride Chemical compound F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 claims description 56
- 239000003792 electrolyte Substances 0.000 claims description 55
- 229910052799 carbon Inorganic materials 0.000 claims description 46
- NJXPYZHXZZCTNI-UHFFFAOYSA-N 3-aminobenzonitrile Chemical compound NC1=CC=CC(C#N)=C1 NJXPYZHXZZCTNI-UHFFFAOYSA-N 0.000 claims description 36
- 229910001610 cryolite Inorganic materials 0.000 claims description 25
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 24
- 239000002245 particle Substances 0.000 claims description 21
- 238000004544 sputter deposition Methods 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 11
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims 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 claims description 6
- 239000000428 dust Substances 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 229910020834 NaAlF4 Inorganic materials 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 4
- 230000008021 deposition Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 229910001018 Cast iron Inorganic materials 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 238000004581 coalescence Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 241000446313 Lamella Species 0.000 claims 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims 1
- 239000011230 binding agent Substances 0.000 claims 1
- 238000003776 cleavage reaction Methods 0.000 claims 1
- 230000009089 cytolysis Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 claims 1
- 238000004886 process control Methods 0.000 claims 1
- 230000000284 resting effect Effects 0.000 claims 1
- 230000007017 scission Effects 0.000 claims 1
- 238000003860 storage Methods 0.000 claims 1
- 230000008961 swelling Effects 0.000 claims 1
- 238000004090 dissolution Methods 0.000 description 28
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 25
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 22
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 16
- 239000003570 air Substances 0.000 description 16
- 239000010439 graphite Substances 0.000 description 15
- 229910002804 graphite Inorganic materials 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 206010039509 Scab Diseases 0.000 description 10
- 238000007792 addition Methods 0.000 description 10
- 239000000126 substance Substances 0.000 description 9
- 229910052786 argon Inorganic materials 0.000 description 8
- 238000005868 electrolysis reaction Methods 0.000 description 8
- 239000010802 sludge Substances 0.000 description 8
- 239000004927 clay Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 7
- 239000000523 sample Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 5
- 229910001634 calcium fluoride Inorganic materials 0.000 description 5
- 238000004880 explosion Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 239000011449 brick Substances 0.000 description 4
- 238000011109 contamination Methods 0.000 description 4
- 230000005496 eutectics Effects 0.000 description 4
- 150000002222 fluorine compounds Chemical class 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000004131 Bayer process Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 239000002006 petroleum coke Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 150000004684 trihydrates Chemical class 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000005457 ice water Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000012811 non-conductive material Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 239000011833 salt mixture Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- -1 sodium aluminum tetrafluoride Chemical compound 0.000 description 2
- 206010000060 Abdominal distension Diseases 0.000 description 1
- 101100004392 Arabidopsis thaliana BHLH147 gene Proteins 0.000 description 1
- 101100493713 Caenorhabditis elegans bath-45 gene Proteins 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241000237858 Gastropoda Species 0.000 description 1
- 238000009626 Hall-Héroult process Methods 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910001508 alkali metal halide Inorganic materials 0.000 description 1
- 229910001615 alkaline earth metal halide Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 208000024330 bloating Diseases 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910001679 gibbsite Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910001055 inconels 600 Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 230000004580 weight loss Effects 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
-
- 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
- C25C3/18—Electrolytes
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)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US37481673A | 1973-06-28 | 1973-06-28 | |
| US00374805A US3839167A (en) | 1973-06-28 | 1973-06-28 | Novel alumina feed for aluminum cell |
| US00374803A US3855086A (en) | 1973-06-28 | 1973-06-28 | Carbon anode protection in aluminum smelting cells |
| US00374802A US3852173A (en) | 1973-06-28 | 1973-06-28 | Alumina reduction process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH615700A5 true CH615700A5 (en) | 1980-02-15 |
Family
ID=27503119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH864474A CH615700A5 (en) | 1973-06-28 | 1974-06-24 | Method for operating a cell for the electrolytic decomposition of alumina into aluminium metal |
Country Status (8)
| Country | Link |
|---|---|
| BR (1) | BR7405161A (en, 2012) |
| CH (1) | CH615700A5 (en, 2012) |
| DE (1) | DE2429576A1 (en, 2012) |
| FR (1) | FR2235212B1 (en, 2012) |
| IT (1) | IT1016149B (en, 2012) |
| NO (1) | NO140632C (en, 2012) |
| SE (1) | SE7406897L (en, 2012) |
| SU (1) | SU795507A3 (en, 2012) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114774992A (zh) * | 2022-05-18 | 2022-07-22 | 中国铝业股份有限公司 | 一种铝电解生产方法 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO180206C (no) * | 1992-11-30 | 1997-03-05 | Elkem Aluminium | Konstruksjonsdeler for aluminiumelektrolyseceller |
| AU5016596A (en) * | 1995-10-02 | 1997-04-28 | Aktsionernoe Obschestvo Otkrytogo Tipa "Bratsky Aljuminievy Zavod | Device for feeding raw material into aluminium electrolysis baths |
| RU2158788C2 (ru) * | 1997-04-17 | 2000-11-10 | Бегунов Альберт Иванович | Устройство для подачи глинозема в алюминиевый электролизер |
| RU2210635C2 (ru) * | 2000-02-07 | 2003-08-20 | Бегунов Альберт Иванович | Устройство для подогрева и дозированной подачи глинозема в алюминиевый электролизер |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1194089A (en, 2012) * | 1959-11-06 | |||
| FR1406746A (fr) * | 1964-07-24 | 1965-07-23 | Vaw Ver Aluminium Werke Ag | Procédé pour diminuer l'émission de fluor lors de la fabrication de l'aluminium par électrolyse ignée |
-
1974
- 1974-05-24 SE SE7406897A patent/SE7406897L/ not_active Application Discontinuation
- 1974-05-28 NO NO741934A patent/NO140632C/no unknown
- 1974-06-20 DE DE2429576A patent/DE2429576A1/de not_active Withdrawn
- 1974-06-24 SU SU742042059A patent/SU795507A3/ru active
- 1974-06-24 IT IT51691/74A patent/IT1016149B/it active
- 1974-06-24 BR BR5161/74A patent/BR7405161A/pt unknown
- 1974-06-24 CH CH864474A patent/CH615700A5/de not_active IP Right Cessation
- 1974-06-24 FR FR7421905A patent/FR2235212B1/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114774992A (zh) * | 2022-05-18 | 2022-07-22 | 中国铝业股份有限公司 | 一种铝电解生产方法 |
| CN114774992B (zh) * | 2022-05-18 | 2023-08-08 | 中国铝业股份有限公司 | 一种铝电解生产方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1016149B (it) | 1977-05-30 |
| FR2235212B1 (en, 2012) | 1977-03-11 |
| DE2429576A1 (de) | 1975-01-23 |
| NO140632C (no) | 1979-10-10 |
| BR7405161A (pt) | 1976-02-24 |
| SU795507A3 (ru) | 1981-01-07 |
| FR2235212A1 (en, 2012) | 1975-01-24 |
| NO741934L (en, 2012) | 1975-01-27 |
| SE7406897L (en, 2012) | 1974-12-30 |
| NO140632B (no) | 1979-07-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |