EP1409756A1 - Steel parts made of austenitic or semi-austenitic steel in a plant for producing sulfuric acid and method for the protection against corrosion - Google Patents
Steel parts made of austenitic or semi-austenitic steel in a plant for producing sulfuric acid and method for the protection against corrosionInfo
- Publication number
- EP1409756A1 EP1409756A1 EP02743117A EP02743117A EP1409756A1 EP 1409756 A1 EP1409756 A1 EP 1409756A1 EP 02743117 A EP02743117 A EP 02743117A EP 02743117 A EP02743117 A EP 02743117A EP 1409756 A1 EP1409756 A1 EP 1409756A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- austenitic
- sulfuric acid
- steel
- semi
- steel part
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/005—Anodic protection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/004—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using protective electric currents, voltages, cathodes, anodes, electric short-circuits
Definitions
- This invention relates to a method for the protection against corrosion of steel parts made of austenitic or semi-austenitic steel during the production of sulfuric acid.
- sulfuric acid is produced by the catalytic conversion of the SO 2 con- tent of gases to obtain SO 3 and - in the case of dry gases - by the subsequent absorption of the SO 3 formed in concentrated sulfuric acid or - in the case of humid gases - by the subsequent condensation of the sulfuric acid formed.
- the usual technical components such as drier, absorber, heat exchanger etc. get in contact with concentrated sulfuric acid starting at about 93 wt-% and an ele- vated temperature.
- This sulfuric acid is extremely aggressive and exerts a fast and strong corrosion on the structural parts to be used. Therefore, the structural parts which get in contact with sulfuric acid must be made of corrosion-resistant materials.
- the materials to be protected are coated with a metal oxide layer which prevents the corrosion at- tack.
- the use of austenitic steels during the production of sulfuric acid is known from EP 0 130 967.
- the steel grades indicated in this protective right are intended in particular for use in heat exchangers.
- the materials used here do not satisfy the requirements which must now be fulfilled by corrosion-resistant materials. For the technical plants now in use smaller corrosion rates are required in particular.
- this object is solved in the above-mentioned method in that at a sulfuric acid concentration of 93 wt-% up to 100 wt-% and a temperature of 140°C up to the boiling point of the sulfuric acid, the steel part is made of austenitic or semi-austenitic steel which has a Cr content of 15 wt-% to 36 wt-% and an Ni content of 9 wt-% to 60 wt-%, and in which the ratio of the chemical elements (Cr + Si)/(Ni + Mo) lies in the range from 0.9 to 1.9 or in which the ratio of the chemical elements Cr/(Ni + Mo) lies in the range from 0.8 to 1.5, and in which the steel part has an anodic corrosion protection, wherein an anode, a cathode and a reference electrode are connected with a potentio- stat which supplies an adjustable direct electric current, and wherein the cathode and the reference electrode are in contact with the sulfuric acid and the an-
- the ratio is particularly favorable when molybdenum is present in a not too large amount of 0 wt-% to 2.5 wt-%.
- austenitic or semi- austenitic steel parts with a molybdenum content of 2 wt-% to 2.5 wt-% can be used.
- What is particularly critical for corrosion are those ranges in which the concentration of sulfuric acid is about 97 wt-% to 99 wt-% or the temperature of sulfuric acid is about 160°C to 230°C.
- heat exchangers such as e.g. plate-type heat exchangers or shell-and-tube heat exchangers, as well as the entire pipe system. Embodiments of the process will be explained by way of example with reference to the drawing, in which:
- Fig. 1 shows the current density/potential curve of an austenitic material
- Fig. 2 is a schematic representation of the anodic protection in a heat exchanger.
- Fig. 1 shows the current density/potential curve of a typical austenitic material containing 16.5 to 18.5 wt-% chromium, 11 to 14 wt-% nickel and 2 to 2.5 wt-% molybdenum.
- sulfuric acid was used as medium with 98 wt-% at a temperature of 200°C.
- cathode there was used a steel cathode made of 1.4404.
- the potential is plotted in millivolt (mV) against a Hg/HgSO reference electrode, and on the ordinate the current density is plotted in milliampere per square centimeter (mA/cm 2 ).
- mV millivolt
- mA/cm 2 milliampere per square centimeter
- reference electrodes such as e.g. a calomel electrode or a cadmium bar.
- the first part of the diagram in the range from 0 to 600 mV shows a peak which is referred to as active potential.
- active potential In the range from 600 mV to 1800 mV then follows the saddle of the curve, the so-called passive potential.
- passive potential The subsequent rise from 1800 mV is referred to as transpassive potential.
- transpassive potential To achieve a corrosion protection as effective as possible in the anodic corrosion protection, the current density must lie within the range of the passive potential.
- the values represented here are exemplary, as they are material- and temperature- dependent.
- Fig. 2 shows the arrangement of the anodic corrosion protection in a shell-and- tube heat exchanger (1) for sulfuric acid.
- cooling medium is introduced into a first chamber (3) of a shell-and-tube heat exchanger (1 ). From there, the cooling medium is distributed and flows through individual tubes (4) into a second chamber (5), from which the cooling medium is discharged again.
- only two tubes (4) are represented here.
- connection (6) hot sulfuric acid (2) is introduced.
- the sulfuric acid flows around the tubes (4) filled with cooling medium and is discharged again via the connection (7).
- the sulfuric acid is cooled.
- a plurality of metal cathodes (8) are mounted between the tubes (4) in the shell- and-tube heat exchanger.
- the representation shows a cathode (8) by way of example.
- the number of cathodes (8) used depends on the size of the heat exchanger and also on the temperature and the concentration of the sulfuric acid.
- the cathode (8) is made of the material 1.4404 and is in permanent contact with the sulfuric acid.
- the cathode (8) is connected with the negative pole of a poten- tiostat (9) by an electric line.
- the potentiostat (9) is a d.c. voltage source whose positive pole (10) is connected with the parts of the shell-and-tube heat exchanger (1 ) to be protected via an electric line.
- a second reference electrode (11 ) is inserted in the shell-and-tube heat ex- changer via a seal and is connected with the potentiostat (9) via an electric line.
- This reference electrode (11) likewise is permanently surrounded by the sulfuric acid and provides the measurement basis for the potentiostat (9).
- the potential required for the corrosion protection is determined and adjusted at the potentiostat (9).
- the corrosion behavior of the materials in accordance with the invention is shown at different temperatures and a sulfuric acid concentration of 98 wt-%.
- the flow rate of the sulfuric acid was 1 m/s.
- the corrosion behavior was determined by immersion tests. In all cases, the test period was 7 days.
- the removal rates were determined by measuring the corrosion flow and by conversion to mm/a.
- the test medium was renewed after each test cycle.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Prevention Of Electric Corrosion (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Spark Plugs (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10128032 | 2001-06-08 | ||
DE10128032A DE10128032A1 (en) | 2001-06-08 | 2001-06-08 | Process for protecting steel part of apparatus against corrosion comprises using anodic protection, in which an anode, cathode and reference electrode are connected together |
PCT/EP2002/005842 WO2002101106A1 (en) | 2001-06-08 | 2002-05-28 | Method for the protection against corrosion of a steel part made of austenitic or semi-austenitic steel during the production of sulfuric acid |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1409756A1 true EP1409756A1 (en) | 2004-04-21 |
EP1409756B1 EP1409756B1 (en) | 2006-09-20 |
Family
ID=7687749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02743117A Expired - Lifetime EP1409756B1 (en) | 2001-06-08 | 2002-05-28 | Steel parts made of austenitic or semi-austenitic steel in a plant for producing sulfuric acid and method for the protection against corrosion |
Country Status (11)
Country | Link |
---|---|
US (1) | US20040238375A1 (en) |
EP (1) | EP1409756B1 (en) |
JP (1) | JP2004529274A (en) |
KR (1) | KR20040023612A (en) |
AT (1) | ATE340274T1 (en) |
DE (2) | DE10128032A1 (en) |
EA (1) | EA006778B1 (en) |
ES (1) | ES2272733T3 (en) |
MX (1) | MXPA03011234A (en) |
PE (1) | PE20030023A1 (en) |
WO (1) | WO2002101106A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110041515A1 (en) * | 2007-10-18 | 2011-02-24 | Michael Lee Fraim | High Efficiency, Corrosion Resistant Heat Exchanger and Method of Use Thereof |
DE102010006541B4 (en) * | 2010-02-01 | 2016-03-17 | Outotec Oyj | Method and apparatus for cooling acid |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55134179A (en) * | 1979-04-02 | 1980-10-18 | Monsanto Co | Container and method for immobilizing anode |
CA1199305A (en) * | 1982-01-21 | 1986-01-14 | C-I-L Inc. | Anodic protection system and method |
US5028396A (en) * | 1982-06-11 | 1991-07-02 | Chemetics International Company, Ltd. | Apparatus formed of high silicon chromium/nickel in steel in the manufacture of sulpheric acid |
US4576813A (en) * | 1983-07-05 | 1986-03-18 | Monsanto Company | Heat recovery from concentrated sulfuric acid |
DE4342188C2 (en) * | 1993-12-10 | 1998-06-04 | Bayer Ag | Austenitic alloys and their uses |
DE19807632A1 (en) * | 1998-02-23 | 1999-09-02 | Bayer Ag | Device for concentrating and purifying sulfuric acid |
-
2001
- 2001-06-08 DE DE10128032A patent/DE10128032A1/en not_active Withdrawn
-
2002
- 2002-05-28 US US10/479,304 patent/US20040238375A1/en not_active Abandoned
- 2002-05-28 EA EA200400008A patent/EA006778B1/en not_active IP Right Cessation
- 2002-05-28 MX MXPA03011234A patent/MXPA03011234A/en active IP Right Grant
- 2002-05-28 JP JP2003503852A patent/JP2004529274A/en active Pending
- 2002-05-28 KR KR10-2003-7016039A patent/KR20040023612A/en not_active Application Discontinuation
- 2002-05-28 ES ES02743117T patent/ES2272733T3/en not_active Expired - Lifetime
- 2002-05-28 AT AT02743117T patent/ATE340274T1/en not_active IP Right Cessation
- 2002-05-28 DE DE60214859T patent/DE60214859T2/en not_active Expired - Lifetime
- 2002-05-28 WO PCT/EP2002/005842 patent/WO2002101106A1/en active IP Right Grant
- 2002-05-28 EP EP02743117A patent/EP1409756B1/en not_active Expired - Lifetime
- 2002-06-07 PE PE2002000475A patent/PE20030023A1/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO02101106A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1409756B1 (en) | 2006-09-20 |
EA200400008A1 (en) | 2004-04-29 |
EA006778B1 (en) | 2006-04-28 |
DE60214859D1 (en) | 2006-11-02 |
ATE340274T1 (en) | 2006-10-15 |
US20040238375A1 (en) | 2004-12-02 |
WO2002101106A1 (en) | 2002-12-19 |
PE20030023A1 (en) | 2003-02-03 |
JP2004529274A (en) | 2004-09-24 |
KR20040023612A (en) | 2004-03-18 |
DE10128032A1 (en) | 2002-12-12 |
MXPA03011234A (en) | 2004-02-26 |
ES2272733T3 (en) | 2007-05-01 |
DE60214859T2 (en) | 2007-04-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
PL171499B1 (en) | Austenitic ni-mo alloy | |
CN104532097A (en) | High-strength high-corrosion-resistant nickel-based high-temperature alloy and solution and aging heat treatment method thereof | |
US4942922A (en) | Welded corrosion-resistant ferritic stainless steel tubing having high resistance to hydrogen embrittlement and a cathodically protected heat exchanger containing the same | |
CN105714152B (en) | A kind of abros and preparation method | |
CN114787402B (en) | Nickel-chromium-aluminum alloy with good workability, creep strength and corrosion resistance and use thereof | |
AU2002344991B2 (en) | Method for the protection against corrosion of a steel part made of austenitic or semi-austenitic steel during the production of sulfuric acid | |
EP1409756B1 (en) | Steel parts made of austenitic or semi-austenitic steel in a plant for producing sulfuric acid and method for the protection against corrosion | |
KR20220098789A (en) | Nickel-chromium-iron-aluminum alloy with excellent machinability, creep resistance and corrosion resistance and uses thereof | |
CN112375954A (en) | Low-cost high-strength oxidation-resistant iron-nickel-based alloy and preparation method thereof | |
CN105431558A (en) | Tubular element consisting of austenitic steel, and solar receiver | |
AU2002344991A1 (en) | Method for the protection against corrosion of a steel part made of austenitic or semi-austenitic steel during the production of sulfuric acid | |
CN109504916B (en) | Copper-titanium-containing high-strength high-corrosion-resistance austenitic stainless steel and preparation method thereof | |
CN109504835B (en) | Copper-tungsten reinforced corrosion-resistant austenitic stainless steel and preparation method thereof | |
US5296054A (en) | Austenitic steel | |
EP0155011B2 (en) | High-strength alloy for industrial vessels | |
AU2002344992B2 (en) | Plate-type heat exchanger with anodic corrosion protection | |
US5030415A (en) | Structural part made of ferritic chromium-molybdenum steel which is resistant to concentrated sulfuric acid | |
JP2537515B2 (en) | How to use chromium-containing alloys | |
JP6644512B2 (en) | Ferritic stainless steel with excellent high-temperature corrosion and high-temperature creep strength | |
JPH05195126A (en) | Highly corrosion resistant alloy for heat exchanger tube of boiler | |
JPS5841345B2 (en) | amorphous amorphous | |
CN108220832B (en) | Carbon fiber reinforced alloy composite material and preparation method thereof | |
JPH08121991A (en) | High anti-corrosion type corrugated pipe | |
RU2013462C1 (en) | Steel | |
JPS62297440A (en) | Austenitic stainless steel having superior pitting corrosion resistance |
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 |
|
17P | Request for examination filed |
Effective date: 20031205 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
17Q | First examination report despatched |
Effective date: 20040503 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RTI1 | Title (correction) |
Free format text: STEEL PARTS MADE OF AUSTENITIC OR SEMI-AUSTENITIC STEEL IN A PLANT FOR PRODUCING SULFURIC ACID AND METHOD FOR THE PROTECT |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: OUTOKUMPU TECHNOLOGY OY |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: ANASTASIJEVIC, NIKOLA Inventor name: SCHNAUBELT, HERBERT Inventor name: LAIBACH, STEFAN Inventor name: SCHALK, WOLFRAM Inventor name: DAUM, KARL-HEINZ Inventor name: RAUSER, WOLF-CHRISTOPF |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060920 Ref country code: LI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060920 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060920 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060920 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;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: 20060920 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REF | Corresponds to: |
Ref document number: 60214859 Country of ref document: DE Date of ref document: 20061102 Kind code of ref document: P |
|
RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: OUTOKUMPU TECHNOLOGY OYJ |
|
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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20061220 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20061220 |
|
NLT2 | Nl: modifications (of names), taken from the european patent patent bulletin |
Owner name: OUTOKUMPU TECHNOLOGY OYJ Effective date: 20061129 |
|
NLT1 | Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. 16 a, paragraph 1 |
Owner name: OUTOKUMPU TECHNOLOGY OYJ |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070312 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
ET | Fr: translation filed | ||
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2272733 Country of ref document: ES Kind code of ref document: T3 |
|
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 |
|
RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: OUTOTEC OYJ |
|
26N | No opposition filed |
Effective date: 20070621 |
|
NLT2 | Nl: modifications (of names), taken from the european patent patent bulletin |
Owner name: OUTOTEC OYJ Effective date: 20070822 |
|
BECN | Be: change of holder's name |
Owner name: *OUTOKUMPU TECHNOLOGY OYJ Effective date: 20060920 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20070528 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20061221 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070528 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070528 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060920 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070528 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060920 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20120521 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20130522 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20130603 Year of fee payment: 12 Ref country code: BE Payment date: 20130521 Year of fee payment: 12 Ref country code: IT Payment date: 20130527 Year of fee payment: 12 Ref country code: NL Payment date: 20130521 Year of fee payment: 12 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 60214859 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: V1 Effective date: 20141201 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 60214859 Country of ref document: DE Effective date: 20141202 |
|
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: 20141201 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20150130 |
|
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 Effective date: 20140528 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20141202 |
|
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: 20140602 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20150701 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140529 |
|
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: 20140531 |