CA1340408C - Revetements de protection de rondins d'anodes precuites et de la partie emergeante de ces anodes - Google Patents
Revetements de protection de rondins d'anodes precuites et de la partie emergeante de ces anodesInfo
- Publication number
- CA1340408C CA1340408C CA 586322 CA586322A CA1340408C CA 1340408 C CA1340408 C CA 1340408C CA 586322 CA586322 CA 586322 CA 586322 A CA586322 A CA 586322A CA 1340408 C CA1340408 C CA 1340408C
- Authority
- CA
- Canada
- Prior art keywords
- alumina
- weight
- dry matter
- water
- magnesium spinel
- 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.)
- Expired - Fee Related
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 7
- 239000011248 coating agent Substances 0.000 title claims 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 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 239000004568 cement Substances 0.000 claims abstract description 24
- 239000011777 magnesium Substances 0.000 claims abstract description 19
- 229910052596 spinel Inorganic materials 0.000 claims abstract description 19
- 239000011029 spinel Substances 0.000 claims abstract description 19
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 17
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 15
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 15
- 150000004645 aluminates Chemical class 0.000 claims abstract description 15
- 239000004571 lime Substances 0.000 claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000005260 corrosion Methods 0.000 claims abstract description 10
- 230000007797 corrosion Effects 0.000 claims abstract description 10
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 230000003647 oxidation Effects 0.000 claims abstract description 7
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 238000005868 electrolysis reaction Methods 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 9
- 239000011253 protective coating Substances 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 238000009626 Hall-Héroult process Methods 0.000 abstract description 4
- 235000015927 pasta Nutrition 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910052681 coesite Inorganic materials 0.000 description 3
- 239000000571 coke Substances 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 244000000626 Daucus carota Species 0.000 description 2
- 235000002767 Daucus carota Nutrition 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 2
- 239000003830 anthracite Substances 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- NOTVAPJNGZMVSD-UHFFFAOYSA-N potassium monoxide Inorganic materials [K]O[K] NOTVAPJNGZMVSD-UHFFFAOYSA-N 0.000 description 2
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229910001610 cryolite Inorganic materials 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 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
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
- C25C3/125—Anodes based on carbon
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/02—Electrodes; Connections thereof
- C25C7/025—Electrodes; Connections thereof used in cells for the electrolysis of melts
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)
- Prevention Of Electric Corrosion (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR878718452A FR2624886B2 (fr) | 1986-11-14 | 1987-12-22 | Perfectionnement aux revetements de protection des rondins d'anodes precuites et de la partie emergeante de ces anodes |
| FR8718452 | 1987-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1340408C true CA1340408C (fr) | 1999-02-23 |
Family
ID=9358501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 586322 Expired - Fee Related CA1340408C (fr) | 1987-12-22 | 1988-12-19 | Revetements de protection de rondins d'anodes precuites et de la partie emergeante de ces anodes |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0322326B1 (en)) |
| AU (1) | AU610964B2 (en)) |
| BR (1) | BR8806778A (en)) |
| CA (1) | CA1340408C (en)) |
| DE (1) | DE3873713T2 (en)) |
| ES (1) | ES2043877T3 (en)) |
| IN (1) | IN169360B (en)) |
| IS (1) | IS1465B6 (en)) |
| NO (1) | NO885645L (en)) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2606796B1 (fr) * | 1986-11-14 | 1989-02-03 | Savoie Electrodes Refract | Revetement de protection destine aux rondins d'anodes precuites |
| NO930957L (no) * | 1993-03-17 | 1994-09-19 | Norsk Hydro As | Marterialkompositt for oksidasjons- og korrosjonsbeskyttelse av anodenipler |
| US6818106B2 (en) * | 2002-01-25 | 2004-11-16 | Alcoa Inc. | Inert anode assembly |
| WO2004035870A1 (en) * | 2002-10-18 | 2004-04-29 | Moltech Invent S.A. | Anode current feeding connection stem |
| CN100515546C (zh) * | 2002-11-25 | 2009-07-22 | 阿尔科公司 | 惰性阳极组件 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1365820A (en) * | 1972-02-15 | 1974-09-04 | Zirconal Processes Ltd | Coating composition suitable for use at high temperatures |
| FR2411166A1 (fr) * | 1977-12-12 | 1979-07-06 | Lafarge Fondu Int | Liant hydraulique refractaire a base d'aluminate de calcium et son procede de preparation |
| US4354918A (en) * | 1981-01-14 | 1982-10-19 | Martin Marietta Corporation | Anode stud coatings for electrolytic cells |
| JPS61111983A (ja) * | 1984-11-02 | 1986-05-30 | ミサワホ−ム株式会社 | 気泡コンクリ−トの製造法 |
| BR8500347A (pt) * | 1985-01-25 | 1986-09-09 | Ardal Og Sunndal Verk | Anodo pre-cozido com perda de carbono reduzida para emprego na producao de aluminio por reducao por fusao eletrolitica e processo de produzir o mesmo |
-
1988
- 1988-11-21 IN IN814/MAS/88A patent/IN169360B/en unknown
- 1988-12-19 CA CA 586322 patent/CA1340408C/fr not_active Expired - Fee Related
- 1988-12-20 NO NO88885645A patent/NO885645L/no unknown
- 1988-12-21 AU AU27429/88A patent/AU610964B2/en not_active Ceased
- 1988-12-21 ES ES88420430T patent/ES2043877T3/es not_active Expired - Lifetime
- 1988-12-21 DE DE19883873713 patent/DE3873713T2/de not_active Expired - Fee Related
- 1988-12-21 IS IS3424A patent/IS1465B6/is unknown
- 1988-12-21 EP EP19880420430 patent/EP0322326B1/fr not_active Expired - Lifetime
- 1988-12-21 BR BR8806778A patent/BR8806778A/pt not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0322326A1 (fr) | 1989-06-28 |
| ES2043877T3 (es) | 1994-01-01 |
| NO885645D0 (no) | 1988-12-20 |
| EP0322326B1 (fr) | 1992-08-12 |
| DE3873713D1 (de) | 1992-09-17 |
| AU2742988A (en) | 1989-06-22 |
| IS1465B6 (is) | 1991-03-26 |
| IS3424A7 (is) | 1989-06-23 |
| DE3873713T2 (de) | 1993-02-11 |
| AU610964B2 (en) | 1991-05-30 |
| NO885645L (no) | 1989-06-23 |
| BR8806778A (pt) | 1989-08-29 |
| IN169360B (en)) | 1991-09-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |