NO964233D0 - Process for cleaning furnace exhaust and for using the resulting filter dust - Google Patents
Process for cleaning furnace exhaust and for using the resulting filter dustInfo
- Publication number
- NO964233D0 NO964233D0 NO964233A NO964233A NO964233D0 NO 964233 D0 NO964233 D0 NO 964233D0 NO 964233 A NO964233 A NO 964233A NO 964233 A NO964233 A NO 964233A NO 964233 D0 NO964233 D0 NO 964233D0
- Authority
- NO
- Norway
- Prior art keywords
- filter dust
- furnace exhaust
- resulting filter
- cleaning furnace
- waste furnace
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Geology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Geochemistry & Mineralogy (AREA)
- Treating Waste Gases (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Filtering Materials (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (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 (3)
Publication Number | Publication Date |
---|---|
NO964233D0 true NO964233D0 (en) | 1996-10-04 |
NO964233L NO964233L (en) | 1996-10-04 |
NO314443B1 NO314443B1 (en) | 2003-03-24 |
Family
ID=3497734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO19964233A NO314443B1 (en) | 1994-04-06 | 1996-10-04 | Process for producing 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 |
ES2321550T3 (en) * | 2006-12-18 | 2009-06-08 | 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 DE DE59502767T patent/DE59502767D1/en not_active Expired - Fee Related
- 1995-04-05 EP EP95916606A patent/EP0754090B1/en not_active Expired - Lifetime
- 1995-04-05 DK DK95916606T patent/DK0754090T3/en active
- 1995-04-05 CZ CZ19962871A patent/CZ286897B6/en not_active IP Right Cessation
- 1995-04-05 WO PCT/EP1995/001244 patent/WO1995027555A2/en active IP Right Grant
- 1995-04-05 AT AT95916606T patent/ATE168035T1/en not_active IP Right Cessation
- 1995-04-05 ES ES95916606T patent/ES2121375T3/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 |
---|---|
FI963970A0 (en) | 1996-10-03 |
FI963970A (en) | 1996-10-03 |
ATE168035T1 (en) | 1998-07-15 |
CZ287196A3 (en) | 1997-04-16 |
WO1995027555A3 (en) | 1995-11-09 |
NO314443B1 (en) | 2003-03-24 |
FI108046B (en) | 2001-11-15 |
DE59502767D1 (en) | 1998-08-13 |
CZ286897B6 (en) | 2000-07-12 |
DK0754090T3 (en) | 1998-11-16 |
EP0754090A1 (en) | 1997-01-22 |
WO1995027555A2 (en) | 1995-10-19 |
EP0754090B1 (en) | 1998-07-08 |
ES2121375T3 (en) | 1998-11-16 |
NO964233L (en) | 1996-10-04 |
AT400007B (en) | 1995-09-25 |
ATA70994A (en) | 1995-01-15 |
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