ZA919066B - Process for the wet treatment of spent pot linings from hall-heroult electrolytic cells - Google Patents
Process for the wet treatment of spent pot linings from hall-heroult electrolytic cellsInfo
- Publication number
- ZA919066B ZA919066B ZA919066A ZA919066A ZA919066B ZA 919066 B ZA919066 B ZA 919066B ZA 919066 A ZA919066 A ZA 919066A ZA 919066 A ZA919066 A ZA 919066A ZA 919066 B ZA919066 B ZA 919066B
- Authority
- ZA
- South Africa
- Prior art keywords
- hall
- electrolytic cells
- wet treatment
- spent pot
- pot linings
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
- A62D3/35—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by hydrolysis
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
- A62D3/33—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by chemical fixing the harmful substance, e.g. by chelation or complexation
-
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/40—Inorganic substances
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/40—Inorganic substances
- A62D2101/45—Inorganic substances containing nitrogen or phosphorus
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/40—Inorganic substances
- A62D2101/49—Inorganic substances containing halogen
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2203/00—Aspects of processes for making harmful chemical substances harmless, or less harmful, by effecting chemical change in the substances
- A62D2203/02—Combined processes involving two or more distinct steps covered by groups A62D3/10 - A62D3/40
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Emergency Management (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- General Chemical & Material Sciences (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Processing Of Solid Wastes (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9014825A FR2669350B1 (fr) | 1990-11-16 | 1990-11-16 | Procede de traitement par voie humide de brasquages uses provenant de cuves d'electrolyse hall-heroult. |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA919066B true ZA919066B (en) | 1992-08-26 |
Family
ID=9402646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA919066A ZA919066B (en) | 1990-11-16 | 1991-11-15 | Process for the wet treatment of spent pot linings from hall-heroult electrolytic cells |
Country Status (12)
Country | Link |
---|---|
US (1) | US5245116A (is) |
EP (1) | EP0486410B1 (is) |
AU (1) | AU632717B2 (is) |
CA (1) | CA2055135A1 (is) |
DE (1) | DE69107796T2 (is) |
ES (1) | ES2069254T3 (is) |
FR (1) | FR2669350B1 (is) |
GR (1) | GR3015282T3 (is) |
IS (1) | IS3779A7 (is) |
NO (1) | NO178363C (is) |
NZ (1) | NZ240534A (is) |
ZA (1) | ZA919066B (is) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ZA935347B (en) * | 1992-07-24 | 1994-03-14 | Comalco Alu | Treatment of solid material |
US5470559A (en) * | 1993-02-26 | 1995-11-28 | Alcan International Limited | Recycling of spent pot linings |
US5558690A (en) * | 1994-12-23 | 1996-09-24 | Vortec Corporation | Manufacture of ceramic tiles from spent aluminum potlining |
US5538604A (en) * | 1995-01-20 | 1996-07-23 | Emec Consultants | Suppression of cyanide formation in electrolytic cell lining |
EP0892765A4 (en) * | 1996-04-09 | 2000-03-15 | Vortec Corp | PRODUCTION OF CERAMIC TILES FROM FLYING BAGS |
FR2756198B1 (fr) * | 1996-11-26 | 1998-12-18 | Pechiney Aluminium | Procede d'insolubilisation et de consolidation de brasques usees provenant des cuves d'electrolyse hall-heroult |
WO1998030499A1 (en) * | 1997-01-14 | 1998-07-16 | Cashman Joseph B | Detoxifying aluminum spent potliners |
CA2588929A1 (fr) * | 2007-05-11 | 2008-11-11 | Institut National De La Recherche Scientifique (Inrs) | Procede de traitement des dechets d'aluminerie contamines par des hydrocarbures aromatiques polycycliques (hap) et des fluorures |
ES2306618B1 (es) * | 2008-04-04 | 2009-07-20 | Xiloga, S.L | Procedimiento de reciclado de spent pot linings (spls) procedentes de la produccion de aluminio primario. |
US20110081284A1 (en) * | 2009-10-02 | 2011-04-07 | Mark Weaver | Treatment of bauxite residue and spent pot lining |
US20140041560A1 (en) * | 2012-08-09 | 2014-02-13 | Alcoa Inc. | High carbon spent pot lining and methods of fueling a furnace with the same |
CN113426807B (zh) * | 2021-06-29 | 2022-05-17 | 云南云铝润鑫铝业有限公司 | 铝电解危废渣联合处理和资源综合利用方法 |
CN113426808B (zh) * | 2021-06-29 | 2022-05-17 | 云南云铝润鑫铝业有限公司 | 一种铝电解大修渣加压碱浸回收氟化盐的方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4113831A (en) * | 1975-10-02 | 1978-09-12 | National Fluoride And Chemical Corporation | Recovery of sodium fluoride and other chemicals from spent carbon liners |
US4113832A (en) * | 1977-11-28 | 1978-09-12 | Kaiser Aluminum & Chemical Corporation | Process for the utilization of waste materials from electrolytic aluminum reduction systems |
GB2056425A (en) * | 1979-08-06 | 1981-03-18 | Alcan Res & Dev | Treatment of wastes containing water-leachable fluorides |
US4447740A (en) * | 1979-11-08 | 1984-05-08 | Heck Louis J | Wave responsive generator |
GB8301974D0 (en) * | 1983-01-25 | 1983-02-23 | Alcan Int Ltd | Aluminium fluoride from scrap |
GB8305583D0 (en) * | 1983-03-01 | 1983-03-30 | Alcan Int Ltd | Treatment of scrap lining material |
US4889695A (en) * | 1985-02-20 | 1989-12-26 | Aluminum Company Of America | Reclaiming spent potlining |
-
1990
- 1990-11-16 FR FR9014825A patent/FR2669350B1/fr not_active Expired - Fee Related
-
1991
- 1991-10-30 IS IS3779A patent/IS3779A7/is unknown
- 1991-11-07 CA CA002055135A patent/CA2055135A1/fr not_active Abandoned
- 1991-11-08 NO NO914367A patent/NO178363C/no unknown
- 1991-11-11 NZ NZ240534A patent/NZ240534A/en unknown
- 1991-11-13 AU AU87850/91A patent/AU632717B2/en not_active Ceased
- 1991-11-14 ES ES91420402T patent/ES2069254T3/es not_active Expired - Lifetime
- 1991-11-14 EP EP91420402A patent/EP0486410B1/fr not_active Expired - Lifetime
- 1991-11-14 DE DE69107796T patent/DE69107796T2/de not_active Expired - Fee Related
- 1991-11-15 ZA ZA919066A patent/ZA919066B/xx unknown
- 1991-11-18 US US07/793,114 patent/US5245116A/en not_active Expired - Fee Related
-
1995
- 1995-03-03 GR GR950400459T patent/GR3015282T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
GR3015282T3 (en) | 1995-06-30 |
NO914367L (no) | 1992-05-18 |
NO178363C (no) | 1996-03-13 |
CA2055135A1 (fr) | 1992-05-17 |
AU632717B2 (en) | 1993-01-07 |
EP0486410A1 (fr) | 1992-05-20 |
FR2669350B1 (fr) | 1993-01-15 |
AU8785091A (en) | 1992-05-21 |
DE69107796D1 (de) | 1995-04-06 |
US5245116A (en) | 1993-09-14 |
ES2069254T3 (es) | 1995-05-01 |
FR2669350A1 (fr) | 1992-05-22 |
DE69107796T2 (de) | 1995-06-29 |
IS3779A7 (is) | 1992-05-17 |
NO914367D0 (no) | 1991-11-08 |
EP0486410B1 (fr) | 1995-03-01 |
NO178363B (no) | 1995-12-04 |
NZ240534A (en) | 1994-05-26 |
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