FI963970A0 - Procedure for cleaning of exhaust gases from furnaces and utilization of filter dust which then arises - Google Patents

Procedure for cleaning of exhaust gases from furnaces and utilization of filter dust which then arises

Info

Publication number
FI963970A0
FI963970A0 FI963970A FI963970A FI963970A0 FI 963970 A0 FI963970 A0 FI 963970A0 FI 963970 A FI963970 A FI 963970A FI 963970 A FI963970 A FI 963970A FI 963970 A0 FI963970 A0 FI 963970A0
Authority
FI
Finland
Prior art keywords
furnaces
arises
utilization
cleaning
procedure
Prior art date
Application number
FI963970A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI108046B (en
FI963970A (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 FI963970A0 publication Critical patent/FI963970A0/en
Publication of FI963970A publication Critical patent/FI963970A/en
Application granted granted Critical
Publication of FI108046B publication Critical patent/FI108046B/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)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Biomedical Technology (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (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)
  • Catalysts (AREA)
  • Processing Of Solid Wastes (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.
FI963970A 1994-04-06 1996-10-03 A method for cleaning furnace exhaust gases and utilizing the filter dust accumulating therefrom FI108046B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT70994 1994-04-06
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
EP9501244 1995-04-05

Publications (3)

Publication Number Publication Date
FI963970A0 true FI963970A0 (en) 1996-10-03
FI963970A FI963970A (en) 1996-10-03
FI108046B FI108046B (en) 2001-11-15

Family

ID=3497734

Family Applications (1)

Application Number Title Priority Date Filing Date
FI963970A FI108046B (en) 1994-04-06 1996-10-03 A method for cleaning furnace exhaust gases and utilizing the filter dust accumulating therefrom

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
CA2225654A1 (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
PT1947202E (en) 2006-12-18 2009-04-07 Befesa Aluminio Bilbao S L Filter powder recycling process

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
FI108046B (en) 2001-11-15
ES2121375T3 (en) 1998-11-16
ATA70994A (en) 1995-01-15
NO964233D0 (en) 1996-10-04
CZ286897B6 (en) 2000-07-12
AT400007B (en) 1995-09-25
DK0754090T3 (en) 1998-11-16
NO964233L (en) 1996-10-04
EP0754090B1 (en) 1998-07-08
ATE168035T1 (en) 1998-07-15
EP0754090A1 (en) 1997-01-22
WO1995027555A2 (en) 1995-10-19
DE59502767D1 (en) 1998-08-13
FI963970A (en) 1996-10-03
CZ287196A3 (en) 1997-04-16
WO1995027555A3 (en) 1995-11-09
NO314443B1 (en) 2003-03-24

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Legal Events

Date Code Title Description
MA Patent expired