HU204717B - Method for treating the outworn lining of hall-heroult electrolysis tanks by silicopyrohydrolysis - Google Patents
Method for treating the outworn lining of hall-heroult electrolysis tanks by silicopyrohydrolysis Download PDFInfo
- Publication number
- HU204717B HU204717B HU882777A HU277788A HU204717B HU 204717 B HU204717 B HU 204717B HU 882777 A HU882777 A HU 882777A HU 277788 A HU277788 A HU 277788A HU 204717 B HU204717 B HU 204717B
- Authority
- HU
- Hungary
- Prior art keywords
- reactor
- water
- fed
- oxygen
- carbon
- Prior art date
Links
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)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Removal Of Specific Substances (AREA)
- Silicon Compounds (AREA)
Applications Claiming Priority (1)
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| HUT48138A HUT48138A (en) | 1989-05-29 |
| HU204717B true HU204717B (en) | 1992-02-28 |
Family
ID=9351847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HU882777A HU204717B (en) | 1987-06-01 | 1988-05-31 | Method for treating the outworn lining of hall-heroult electrolysis tanks by silicopyrohydrolysis |
Country Status (17)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE467224B (sv) * | 1989-01-25 | 1992-06-15 | Skf Plasma Tech | Foerfarande och anordning foer att oeverfoera urlakningsbara substanser i avfallsmaterial till gas eller till lakningsstabila foereningar |
| 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 |
| CA2159806C (en) * | 1993-04-06 | 2005-07-05 | John Millice Floyd | Smelting of carbon-containing material |
| 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 |
Family Cites Families (5)
| 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 |
| AU611868B2 (en) * | 1986-12-22 | 1991-06-27 | Comalco Aluminium Limited | Recovery of fluoride values from waste materials |
-
1987
- 1987-06-01 FR FR8708012A patent/FR2615764B1/fr not_active Expired
-
1988
- 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
- 1988-05-26 ES ES198888420169T patent/ES2027410T3/es not_active Expired - Lifetime
- 1988-05-26 IN IN429/CAL/88A patent/IN169595B/en unknown
- 1988-05-27 RU SU884355818A patent/RU1782226C/ru active
- 1988-05-27 NZ NZ224814A patent/NZ224814A/xx unknown
- 1988-05-27 ZA ZA883823A patent/ZA883823B/xx unknown
- 1988-05-30 CA CA000568138A patent/CA1334049C/fr not_active Expired - Fee Related
- 1988-05-30 IS IS3352A patent/IS1513B/is unknown
- 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 BR BR8802626A patent/BR8802626A/pt not_active Application Discontinuation
- 1988-05-31 AU AU16787/88A patent/AU603672B2/en not_active Ceased
- 1988-05-31 YU YU105488A patent/YU46337B/sh unknown
- 1988-05-31 CN CN88103256A patent/CN1013248B/zh not_active Expired
-
1991
- 1991-12-30 GR GR91401923T patent/GR3003448T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| HUT48138A (en) | 1989-05-29 |
| IN169595B (US06653308-20031125-C00197.png) | 1991-11-16 |
| YU105488A (en) | 1989-06-30 |
| NO166922B (no) | 1991-06-10 |
| FR2615764B1 (fr) | 1989-08-18 |
| EP0294300B1 (fr) | 1991-12-27 |
| ES2027410T3 (es) | 1992-06-01 |
| CN1013248B (zh) | 1991-07-24 |
| CA1334049C (fr) | 1995-01-24 |
| DE3867130D1 (de) | 1992-02-06 |
| BR8802626A (pt) | 1988-12-27 |
| RU1782226C (ru) | 1992-12-15 |
| CN88103256A (zh) | 1988-12-14 |
| YU46337B (sh) | 1993-05-28 |
| ZA883823B (en) | 1989-02-22 |
| NO882373D0 (no) | 1988-05-30 |
| NO882373L (no) | 1988-12-02 |
| FR2615764A1 (fr) | 1988-12-02 |
| GR3003448T3 (en) | 1993-02-17 |
| IS1513B (is) | 1992-11-04 |
| AU603672B2 (en) | 1990-11-22 |
| EP0294300A1 (fr) | 1988-12-07 |
| NZ224814A (en) | 1991-02-26 |
| AU1678788A (en) | 1988-12-01 |
| IS3352A7 (is) | 1988-12-02 |
| NO166922C (no) | 1991-09-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| HMM4 | Cancellation of final prot. due to non-payment of fee |