NO964233L - 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 dust

Info

Publication number
NO964233L
NO964233L NO964233A NO964233A NO964233L NO 964233 L NO964233 L NO 964233L NO 964233 A NO964233 A NO 964233A NO 964233 A NO964233 A NO 964233A NO 964233 L NO964233 L NO 964233L
Authority
NO
Norway
Prior art keywords
filter dust
furnace exhaust
resulting filter
cleaning furnace
waste furnace
Prior art date
Application number
NO964233A
Other languages
Norwegian (no)
Other versions
NO964233D0 (en
NO314443B1 (en
Inventor
Hubert Duchaczek
Reinhard Wachter
Josef Wagner
Original Assignee
Austria Metall
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Austria Metall filed Critical Austria Metall
Publication of NO964233D0 publication Critical patent/NO964233D0/en
Publication of NO964233L publication Critical patent/NO964233L/en
Publication of NO314443B1 publication Critical patent/NO314443B1/en

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)
  • Geology (AREA)
  • Biomedical Technology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (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.
NO19964233A 1994-04-06 1996-10-04 Process for producing secondary aluminum NO314443B1 (en)

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 NO964233D0 (en) 1996-10-04
NO964233L true 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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997006876A1 (en) * 1995-08-11 1997-02-27 Solvay Alkali Gmbh Process for reducing the dioxin and furan content in waste gases from furnaces, and use of the filter dusts produced thereby
DE602006005837D1 (en) * 2006-12-18 2009-04-30 Befesa Aluminio Bilbao S L Filter powder recycling method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
EP0754090A1 (en) 1997-01-22
WO1995027555A2 (en) 1995-10-19
DE59502767D1 (en) 1998-08-13
FI963970A (en) 1996-10-03
WO1995027555A3 (en) 1995-11-09
NO964233D0 (en) 1996-10-04
FI963970A0 (en) 1996-10-03
AT400007B (en) 1995-09-25
ATA70994A (en) 1995-01-15
DK0754090T3 (en) 1998-11-16
FI108046B (en) 2001-11-15
CZ287196A3 (en) 1997-04-16
ATE168035T1 (en) 1998-07-15
NO314443B1 (en) 2003-03-24
CZ286897B6 (en) 2000-07-12
ES2121375T3 (en) 1998-11-16
EP0754090B1 (en) 1998-07-08

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