DK0754090T3 - Process for the extraction of secondary aluminum - Google Patents
Process for the extraction of secondary aluminumInfo
- Publication number
- DK0754090T3 DK0754090T3 DK95916606T DK95916606T DK0754090T3 DK 0754090 T3 DK0754090 T3 DK 0754090T3 DK 95916606 T DK95916606 T DK 95916606T DK 95916606 T DK95916606 T DK 95916606T DK 0754090 T3 DK0754090 T3 DK 0754090T3
- Authority
- DK
- Denmark
- Prior art keywords
- waste furnace
- added
- extraction
- filter residue
- furnace gas
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
- B01D53/70—Organic halogen compounds
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/0007—Preliminary treatment of ores or scrap or any other metal source
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/0038—Obtaining aluminium by other processes
- C22B21/0069—Obtaining aluminium by other processes from scrap, skimmings or any secondary source aluminium, e.g. recovery of alloy constituents
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/0084—Obtaining aluminium melting and handling molten aluminium
- C22B21/0092—Remelting scrap, skimmings or any secondary source aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/02—Working-up flue dust
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Geochemistry & Mineralogy (AREA)
- Treating Waste Gases (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Filtering Materials (AREA)
- Processing Of Solid Wastes (AREA)
- Catalysts (AREA)
Abstract
The invention concerns a process for purifying waste furnace gases and for using the resultant filter residue. Alkaline aggregates, containing sodium or potassium as the cation, are added to the waste furnace gas. In a subsequent stage, dusts and droplets are filtered out of the waste furnace gas. The resultant filter residue is added to the cover salt (7) necessary when melting secondary aluminium.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT70994A AT400007B (en) | 1994-04-06 | 1994-04-06 | METHOD FOR CLEANING OVEN EXHAUST GASES AND USING THE FILTER DUST THEREOF |
PCT/EP1995/001244 WO1995027555A2 (en) | 1994-04-06 | 1995-04-05 | Process for purifying waste furnace gases and for using the resultant filter dust |
Publications (1)
Publication Number | Publication Date |
---|---|
DK0754090T3 true DK0754090T3 (en) | 1998-11-16 |
Family
ID=3497734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK95916606T DK0754090T3 (en) | 1994-04-06 | 1995-04-05 | Process for the extraction of secondary aluminum |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0754090B1 (en) |
AT (2) | AT400007B (en) |
CZ (1) | CZ286897B6 (en) |
DE (1) | DE59502767D1 (en) |
DK (1) | DK0754090T3 (en) |
ES (1) | ES2121375T3 (en) |
FI (1) | FI108046B (en) |
NO (1) | NO314443B1 (en) |
WO (1) | WO1995027555A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RO119693B1 (en) * | 1995-08-11 | 2005-02-28 | Solvay Alkali Gmbh | Process for the purification of gases discharged from furnaces |
PT1947202E (en) * | 2006-12-18 | 2009-04-07 | Befesa Aluminio Bilbao S L | Filter powder recycling process |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2056096B2 (en) * | 1970-11-14 | 1978-09-28 | Metallgesellschaft Ag, 6000 Frankfurt | Process for the separation of hydrogen fluoride from gases |
US4065271A (en) * | 1973-09-15 | 1977-12-27 | Metallgesellschaft Aktiengesellschaft | Process of separating hydrogen fluoride from gases |
IT1126403B (en) * | 1979-11-27 | 1986-05-21 | Tonolli & C Spa A | PROCESS AND PLANT FOR FUME WASHING AND SALT RECOVERY IN A SECONDARY ALUMINUM PRODUCTION PROCESS |
SU899101A1 (en) * | 1980-06-12 | 1982-01-23 | Донецкий Ордена Трудового Красного Знамени Политехнический Институт | Method of cleaning aluminium production waste gases |
DD294187A5 (en) * | 1990-05-14 | 1991-09-26 | Ingenieurbetrieb Anlagenbau Leipzig,De | METHOD FOR WET CLEANING OF FLUOROUS EXHAUST GASES |
DE4037370A1 (en) * | 1990-11-23 | 1992-05-27 | Sommer Metallwerke | METHOD AND DEVICE FOR FURTHER TREATING AND PURIFYING EXHAUST GAS PRODUCED IN A SECOND ALUMINUM MELTING PLANT |
DE4109991C1 (en) * | 1991-03-27 | 1992-06-25 | Metallwarenfabrik Stockach Gmbh, 7768 Stockach, De | |
DE4221239C1 (en) * | 1992-06-27 | 1993-07-22 | Man Gutehoffnungshuette Ag, 4200 Oberhausen, De |
-
1994
- 1994-04-06 AT AT70994A patent/AT400007B/en not_active IP Right Cessation
-
1995
- 1995-04-05 AT AT95916606T patent/ATE168035T1/en not_active IP Right Cessation
- 1995-04-05 DK DK95916606T patent/DK0754090T3/en active
- 1995-04-05 ES ES95916606T patent/ES2121375T3/en not_active Expired - Lifetime
- 1995-04-05 WO PCT/EP1995/001244 patent/WO1995027555A2/en active IP Right Grant
- 1995-04-05 CZ CZ19962871A patent/CZ286897B6/en not_active IP Right Cessation
- 1995-04-05 DE DE59502767T patent/DE59502767D1/en not_active Expired - Fee Related
- 1995-04-05 EP EP95916606A patent/EP0754090B1/en not_active Expired - Lifetime
-
1996
- 1996-10-03 FI FI963970A patent/FI108046B/en not_active IP Right Cessation
- 1996-10-04 NO NO19964233A patent/NO314443B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
AT400007B (en) | 1995-09-25 |
FI963970A (en) | 1996-10-03 |
WO1995027555A3 (en) | 1995-11-09 |
EP0754090B1 (en) | 1998-07-08 |
FI963970A0 (en) | 1996-10-03 |
NO314443B1 (en) | 2003-03-24 |
NO964233D0 (en) | 1996-10-04 |
DE59502767D1 (en) | 1998-08-13 |
ATE168035T1 (en) | 1998-07-15 |
FI108046B (en) | 2001-11-15 |
NO964233L (en) | 1996-10-04 |
CZ287196A3 (en) | 1997-04-16 |
EP0754090A1 (en) | 1997-01-22 |
ATA70994A (en) | 1995-01-15 |
CZ286897B6 (en) | 2000-07-12 |
ES2121375T3 (en) | 1998-11-16 |
WO1995027555A2 (en) | 1995-10-19 |
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