EP0210435A2 - Procédé pour refroidir et purifier un gaz de générateur et un gaz de haut-fourneau et dispositif pour l'exécution de ce procédé - Google Patents

Procédé pour refroidir et purifier un gaz de générateur et un gaz de haut-fourneau et dispositif pour l'exécution de ce procédé Download PDF

Info

Publication number
EP0210435A2
EP0210435A2 EP86108610A EP86108610A EP0210435A2 EP 0210435 A2 EP0210435 A2 EP 0210435A2 EP 86108610 A EP86108610 A EP 86108610A EP 86108610 A EP86108610 A EP 86108610A EP 0210435 A2 EP0210435 A2 EP 0210435A2
Authority
EP
European Patent Office
Prior art keywords
gas
cooling
cleaning
cleaning unit
unit
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP86108610A
Other languages
German (de)
English (en)
Other versions
EP0210435A3 (en
EP0210435B1 (fr
Inventor
Bogdan Vuletic
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Primetals Technologies Austria GmbH
Deutsche Voest Alpine Industrieanlagenbau GmbH
Original Assignee
Voestalpine AG
Voest Alpine Industrienlagenbau GmbH
Deutsche Voest Alpine Industrieanlagenbau GmbH
Korf Engineering GmbH
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 Voestalpine AG, Voest Alpine Industrienlagenbau GmbH, Deutsche Voest Alpine Industrieanlagenbau GmbH, Korf Engineering GmbH filed Critical Voestalpine AG
Publication of EP0210435A2 publication Critical patent/EP0210435A2/fr
Publication of EP0210435A3 publication Critical patent/EP0210435A3/de
Application granted granted Critical
Publication of EP0210435B1 publication Critical patent/EP0210435B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0073—Selection or treatment of the reducing gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
    • C21B2100/44—Removing particles, e.g. by scrubbing, dedusting
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S75/00—Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
    • Y10S75/958—Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures with concurrent production of iron and other desired nonmetallic product, e.g. energy, fertilizer

Definitions

  • the invention relates to a method according to the preamble of claim 1 and an apparatus for carrying it out.
  • control range of the scrubbers used extends over a ratio of up to about 1: 4 Device and the permissible clean gas dust contents can no longer be maintained.
  • a regulation for changes in quantity up to about 1:20 could possibly be achieved if each cleaning unit was included two adjustable venturi washers and the associated droplet separators.
  • the invention is characterized in that for the generation of the cooling and excess gas separate cooling and cleaning units are used and that at least through the final stage of the cooling and cleaning unit for the cooling gas an essentially constant gas quantity is passed, such that the part of the generator gas to be cooled and cleaned exceeds this quantity of gas in the cooling and cleaning unit for the excess gas is passed.
  • the cleaning in each of the cooling and cleaning units takes place in two stages, and the part of the generator gas used to generate the excess gas is passed through the first cleaning stage of the cooling and cleaning unit for the cooling gas and then through the second cleaning stage of the cooling and Cleaning unit led for the excess gas. It is preferably in the arrangement of melt-down gasifier and the reduction unit are no longer required part of the quantity of gas in total produced in the melter gasifier discharged exclusively through the cooling and Cleaner with q saggregat for Ubcrschußgas and further by the cooling and cleaning unit for the cooling gas only in the arrangement of melt-down gasifier and the reduction unit as the cooling and conveying gas.
  • the part of the gas led out of the cooling and cleaning unit for the cooling gas which is not required as the cooling and conveying gas in the arrangement of the melter gasifier and the reduction unit, can be returned to the input of this unit, so that the gas passes through this unit guided amount of gas is essentially constant regardless of the cooling gas requirement.
  • each cooling and cleaning unit has a pack washer and an adjustable venturi washer connected downstream of it.
  • a connecting line is preferably provided from the outlet of the packing washer of the cooling and cleaning unit for the cooling gas to the input of the venturi washer of the cooling and cleaning unit for the excess gas.
  • This shows a schematic representation of the cooling and cleaning units for the generator gas and the top gas of an arrangement consisting of a direct reduction unit and a melter gasifier.
  • the blast furnace gas of a direct reduction shaft furnace is fed via a line 1 and the part of the generator gas generated in a melter gasifier, which is not blown directly into the reduction zone of the direct reduction shaft furnace, is fed via line 2.
  • the top gas under pressure passes from line 1 into a pack washer 3, in which it is cooled to the desired temperature and prewashed.
  • the blast furnace gas thus prepared is then passed via line 4 into an adjustable venturi scrubber 5.
  • the part of the generator gas flowing through line 2 reaches a pack washer 6, in which this gas is also cooled to the desired temperature and prewashed. Part of this gas pretreated in this way is fed via line 7 to an adjustable venturi scrubber 8, in which it is washed again, so that the required clean gas dust content is achieved.
  • This gas is then dewatered in a downstream droplet separator 9. It then passes through a line 10 to a blower 11, by means of which it is brought to the required pressure in order to be available as cooling gas in a line 12 mainly for setting the generator gas temperature.
  • the blower 11 is a volume conveyor which always delivers the same amount of gas at a constant system pressure, so that a constant gas flow flows through the venturi scrubber 8. Since the amount of gas supplied via line 2 does not correspond to the amount of gas conveyed by the blower 11, the outlet line of the pack washer 6 is branched into line 7 and a further line 13, which conducts the gas quantity not taken up by line 7 to the inlet of venturi scrubber 5.
  • the blast furnace gas processed in the pack scrubber 3 is thus fed via line 4 and part of the generator gas processed in the pack scrubber 6 is fed via line 13.
  • the sum of these two quantities of gas is essentially constant even in exceptional operating conditions.
  • the venturi scrubber 5 is a mist eliminator 14 for draining the overall reini g th gas downstream.
  • the cleaned and cooled excess gas of the plant is passed to suitable consumers via a line 15.
  • the cooling gas located in line 12 insofar as it is not required in the arrangement comprising the melter gasifier and direct reduction shaft furnace, is fed back to the inlet of the pack scrubber 6 via a branched line 16. This ensures that an approximately constant amount of gas always flows through the venturi scrubber 8 regardless of the cooling gas requirement of the reduction system.
  • the two pack washers 3 and 6 are relatively insensitive to large fluctuations in the gas quantities passed through. In them, the dust is largely removed from the gases, so that the amounts of dust washed out in the venturi scrubbers 5 and 8 are relatively small and there is no risk of blockage of these scrubbers. This also makes it possible to use gases with an extremely low clean gas dust content of 5 mg / Nm 3 at the outlet of the Venturi scrubber to obtain.
  • venturi scrubbers The mode of operation of the venturi scrubbers depends on the amount of gas passed through them. However, the measures described, in particular the fan 11, which conveys a constant gas volume, and the line 13 between the outlet of the pack washer 6 and the inlet of the venturi washer 5 ensure that the venturi washers 5 and 8 are flowed through by essentially constant gas flows.
  • venturi scrubber 5 it is therefore possible, on the one hand, for optimal degrees of separation for the venturi scrubber 5, in that the part of the total amount of gas generated in the melter gasifier, which is not required in the arrangement of the melter gasifier and direct reduction shaft furnace, is discharged as excess gas exclusively via this venturi scrubber and, on the other hand, for the venturi scrubber 8 in that only through this the amount of gas required in the arrangement of the melter gasifier and direct reduction shaft furnace as cooling and conveying gas is reached.
  • the venturi scrubbers only carry out the final cleaning of the gases, there is also no need to fear that they will be blocked by too much dust.
  • the device thus not only delivers excellent operating results, but also works largely trouble-free and easy to maintain.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Industrial Gases (AREA)
EP86108610A 1985-07-02 1986-06-24 Procédé pour refroidir et purifier un gaz de générateur et un gaz de haut-fourneau et dispositif pour l'exécution de ce procédé Expired - Lifetime EP0210435B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3524011 1985-07-02
DE19853524011 DE3524011A1 (de) 1985-07-02 1985-07-02 Verfahren zur kuehlung und reinigung von generatorgas und gichtgas und vorrichtung zur durchfuehrung dieses verfahrens

Publications (3)

Publication Number Publication Date
EP0210435A2 true EP0210435A2 (fr) 1987-02-04
EP0210435A3 EP0210435A3 (en) 1989-11-23
EP0210435B1 EP0210435B1 (fr) 1991-08-28

Family

ID=6274999

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86108610A Expired - Lifetime EP0210435B1 (fr) 1985-07-02 1986-06-24 Procédé pour refroidir et purifier un gaz de générateur et un gaz de haut-fourneau et dispositif pour l'exécution de ce procédé

Country Status (14)

Country Link
US (2) US4793857A (fr)
EP (1) EP0210435B1 (fr)
JP (1) JPH0768526B2 (fr)
KR (1) KR940001529B1 (fr)
CN (1) CN1011418B (fr)
AU (1) AU595532B2 (fr)
BR (1) BR8603067A (fr)
CA (1) CA1283542C (fr)
CS (1) CS274656B2 (fr)
DD (1) DD247917A5 (fr)
DE (2) DE3524011A1 (fr)
IN (1) IN165848B (fr)
SU (1) SU1561828A3 (fr)
ZA (1) ZA864394B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6511529B1 (en) 1996-05-15 2003-01-28 Voest-Alpine Industrieanlagenbau Gmbh Method of reducing the number of pollutants in a gas flow and device for carrying out said method
EP2746408A1 (fr) * 2012-12-21 2014-06-25 Siemens VAI Metals Technologies GmbH Surchauffe de gaz d'exportation, utilisé dans un procédé de reduction, pour compenser des variations de flux et dispositif à cet effet

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5320676A (en) * 1992-10-06 1994-06-14 Bechtel Group, Inc. Low slag iron making process with injecting coolant
US5354356A (en) * 1992-10-06 1994-10-11 Bechtel Group Inc. Method of providing fuel for an iron making process
US5397376A (en) * 1992-10-06 1995-03-14 Bechtel Group, Inc. Method of providing fuel for an iron making process
US6197088B1 (en) 1992-10-06 2001-03-06 Bechtel Group, Inc. Producing liquid iron having a low sulfur content
US5958107A (en) * 1993-12-15 1999-09-28 Bechtel Croup, Inc. Shift conversion for the preparation of reducing gas
JPH1157402A (ja) * 1997-08-13 1999-03-02 Mitsubishi Heavy Ind Ltd ガス精製方法及びガス精製設備
AT507003B1 (de) * 2008-06-27 2010-03-15 Siemens Vai Metals Tech Gmbh Prozessgas-reinigungseinrichtung für eine schmelzreduktionsanlage zur gewinnung von roheisen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1582232A (en) * 1976-08-14 1981-01-07 Lodge Cottrell Ltd Gas cleaning
FR2478126A1 (fr) * 1980-03-17 1981-09-18 Loftus Corp Peter F Procede et installation pour le traitement des gaz de hauts fourneaux
US4316739A (en) * 1979-07-16 1982-02-23 Midrex Corporation Method for producing molten iron
EP0048008B1 (fr) * 1980-09-12 1984-08-01 Deutsche Voest-Alpine Industrieanlagenbau Gmbh Procédé et dispositif pour la production directe de fonte liquide à partir de minerai de fer en morceaux

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT247385B (de) * 1961-05-16 1966-06-10 Zd Y Na Vyrobu Vzduchotechnick Trockenreinigungsverfahren für Hochofen-(Gicht-)gas
SU1479006A3 (ru) * 1984-11-26 1989-05-07 Фоест-Альпине (Фирма) Способ получени жидкого чугуна или продуктов стали и восстановительного газа в плавильном газификаторе

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1582232A (en) * 1976-08-14 1981-01-07 Lodge Cottrell Ltd Gas cleaning
US4316739A (en) * 1979-07-16 1982-02-23 Midrex Corporation Method for producing molten iron
FR2478126A1 (fr) * 1980-03-17 1981-09-18 Loftus Corp Peter F Procede et installation pour le traitement des gaz de hauts fourneaux
EP0048008B1 (fr) * 1980-09-12 1984-08-01 Deutsche Voest-Alpine Industrieanlagenbau Gmbh Procédé et dispositif pour la production directe de fonte liquide à partir de minerai de fer en morceaux

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6511529B1 (en) 1996-05-15 2003-01-28 Voest-Alpine Industrieanlagenbau Gmbh Method of reducing the number of pollutants in a gas flow and device for carrying out said method
EP2746408A1 (fr) * 2012-12-21 2014-06-25 Siemens VAI Metals Technologies GmbH Surchauffe de gaz d'exportation, utilisé dans un procédé de reduction, pour compenser des variations de flux et dispositif à cet effet
WO2014095111A1 (fr) * 2012-12-21 2014-06-26 Siemens Vai Metals Technologies Gmbh Surchauffage d'un gaz exporté utilisé dans un processus de réduction pour compenser des fluctuations de quantité et dispositif correspondant

Also Published As

Publication number Publication date
IN165848B (fr) 1990-01-27
SU1561828A3 (ru) 1990-04-30
EP0210435A3 (en) 1989-11-23
CS274656B2 (en) 1991-09-15
BR8603067A (pt) 1987-03-17
CA1283542C (fr) 1991-04-30
CN1011418B (zh) 1991-01-30
CN86104420A (zh) 1987-02-04
JPS6284184A (ja) 1987-04-17
KR940001529B1 (ko) 1994-02-23
AU595532B2 (en) 1990-04-05
ZA864394B (en) 1987-02-25
CS470586A2 (en) 1990-10-12
US4793857A (en) 1988-12-27
US4850574A (en) 1989-07-25
KR870001293A (ko) 1987-03-12
DE3524011C2 (fr) 1989-01-05
DE3681090D1 (de) 1991-10-02
JPH0768526B2 (ja) 1995-07-26
AU5855586A (en) 1987-01-22
DD247917A5 (de) 1987-07-22
EP0210435B1 (fr) 1991-08-28
DE3524011A1 (de) 1987-01-15

Similar Documents

Publication Publication Date Title
DE3932182C2 (de) Verfahren zur Herstellung von flüssigem Roheisen sowie Anlage zur Durchführung des Verfahrens
DE3504346C2 (de) Verfahren und Vorrichtung zur Erzeugung von Eisenschwammpartikeln und flüssigem Roheisen
DE3535572C2 (fr)
EP0606573B1 (fr) Procédé pour refroidir et purifier du gaz contenant de fines particules, spécialement gaz de geulart ou d'un générateur de gaz et installation à cette fin
DE2746975C2 (fr)
DE19952754A1 (de) Verfahren und Vorrichtung zur Kühlung und Reinigung von Vergasungsgasen
EP0210435B1 (fr) Procédé pour refroidir et purifier un gaz de générateur et un gaz de haut-fourneau et dispositif pour l'exécution de ce procédé
EP0670910B1 (fr) Procede et dispositif de production de fonte brute a partir du minerai de fer ou de traitement thermique et/ou chimique d'un materiau aisement decomposable
DE3628102C2 (fr)
EP0236669B1 (fr) Procédé pour la fabrication de fonte liquide ou de matériau de préparation de l'acier
EP1201731A1 (fr) Procédé de gazéification en lit fluidisé de solides contenant du carbone et installation de gazéification
DD283650A5 (de) Verfahren zum entzinken des materialflusses beim betrieb einer anlage zur roheisenerzeugung
DE3537493A1 (de) Verfahren zur aufbereitung von quenchwasser
EP0315825B1 (fr) Prétraitement d'un morceau contenant du charbon
DE2735565A1 (de) Einhitziges verfahren zur erzeugung von im wesentlichen aus kohlenoxid und wasserstoff bestehenden reduktionsgasen fuer erzreduktionen und vorrichtung zu seiner durchfuehrung
DE2645189C2 (de) Verfahren und Anlage zur Aufbereitung von Gichtgas zwecks dessen Rückführung in einen Schachtofen, insbesondere Druckhochofen
EP0289741B1 (fr) Procédé et dispositif d'évacuation de matières solides à grain fin et chaud
DE3104405C2 (de) Anlage und Verfahren zur Herstellung von Eisenschwamm
AT403380B (de) Verfahren zum reduzieren von metallschwamm
EP2609223A2 (fr) Procédé pour augmenter la profondeur de pénétration d'un jet d'oxygène
AT405520B (de) Verfahren zur senkung von verunreinigungen im gasstrom und vorrichtung zur durchführung
AT411690B (de) Verfahren und anlage zur verhüttung von metalloxidhaltigen einsatzstoffen
DE3602555C2 (fr)
AT509735B1 (de) Verfahren und vorrichtung zur herstellung von zumindest teilweise reduzierten metallerzen und/oder metallen
DE3422186A1 (de) Verfahren zur direktreduktion von eisenerz oder eisenoxidpellets zu eisenschwamm und vorrichtung zur durchfuehrung dieses verfahrens

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE DE FR GB IT LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE DE FR GB IT LU NL SE

RHK1 Main classification (correction)

Ipc: B01D 53/34

17P Request for examination filed

Effective date: 19891222

17Q First examination report despatched

Effective date: 19900705

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VOEST-ALPINE INDUSTRIEANLAGENBAU GESELLSCHAFT M B

Owner name: DEUTSCHE VOEST-ALPINE INDUSTRIEANLAGENBAU GMBH

ITF It: translation for a ep patent filed

Owner name: DR. ING. A. RACHELI & C.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB IT LU NL SE

REF Corresponds to:

Ref document number: 3681090

Country of ref document: DE

Date of ref document: 19911002

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 86108610.6

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20020531

Year of fee payment: 17

Ref country code: NL

Payment date: 20020531

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20020603

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20020605

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20020606

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020611

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20020612

Year of fee payment: 17

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030624

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030624

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030625

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030630

BERE Be: lapsed

Owner name: *VOEST-ALPINE INDUSTRIEANLAGENBAU G.M.B.H.

Effective date: 20030630

Owner name: *DEUTSCHE VOEST-ALPINE INDUSTRIEANLAGENBAU G.M.B.H

Effective date: 20030630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040101

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040101

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20030624

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040227

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20040101

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050624