EP0188975B8 - Verfahren zum säuren Beizen von Stahlen, insbesondere von rostfreien Stahlen - Google Patents
Verfahren zum säuren Beizen von Stahlen, insbesondere von rostfreien Stahlen Download PDFInfo
- Publication number
- EP0188975B8 EP0188975B8 EP85420013A EP85420013A EP0188975B8 EP 0188975 B8 EP0188975 B8 EP 0188975B8 EP 85420013 A EP85420013 A EP 85420013A EP 85420013 A EP85420013 A EP 85420013A EP 0188975 B8 EP0188975 B8 EP 0188975B8
- Authority
- EP
- European Patent Office
- Prior art keywords
- steels
- acid pickling
- particular stainless
- pickling
- stainless steels
- 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.)
- Expired - Lifetime
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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/086—Iron or steel solutions containing HF
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP85420013A EP0188975B8 (de) | 1985-01-22 | 1985-01-22 | Verfahren zum säuren Beizen von Stahlen, insbesondere von rostfreien Stahlen |
AT85420013T ATE121804T1 (de) | 1985-01-22 | 1985-01-22 | Verfahren zum säuren beizen von stahlen, insbesondere von rostfreien stahlen. |
DE3588013T DE3588013T3 (de) | 1985-01-22 | 1985-01-22 | Verfahren zum säuren Beizen von Stahlen, insbesondere von rostfreien Stahlen. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP85420013A EP0188975B8 (de) | 1985-01-22 | 1985-01-22 | Verfahren zum säuren Beizen von Stahlen, insbesondere von rostfreien Stahlen |
Publications (4)
Publication Number | Publication Date |
---|---|
EP0188975A1 EP0188975A1 (de) | 1986-07-30 |
EP0188975B1 EP0188975B1 (de) | 1995-04-26 |
EP0188975B2 EP0188975B2 (de) | 2001-10-24 |
EP0188975B8 true EP0188975B8 (de) | 2002-01-09 |
Family
ID=8194569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85420013A Expired - Lifetime EP0188975B8 (de) | 1985-01-22 | 1985-01-22 | Verfahren zum säuren Beizen von Stahlen, insbesondere von rostfreien Stahlen |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0188975B8 (de) |
AT (1) | ATE121804T1 (de) |
DE (1) | DE3588013T3 (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5154774A (en) * | 1985-09-19 | 1992-10-13 | Ugine Aciers De Chatillon Et Gueugnon | Process for acid pickling of stainless steel products |
FR2587369B1 (fr) * | 1985-09-19 | 1993-01-29 | Ugine Gueugnon Sa | Procede de decapage acide de produits en acier inoxydable |
US4872919A (en) * | 1988-01-28 | 1989-10-10 | The Procter & Gamble Company | Method for removing precipitated calcium citrate from juice pasteurization or sterilization equipment |
DE3937438C2 (de) * | 1989-02-23 | 1998-01-29 | Wilfried Simmer | Verfahren zum Beizen von Stahl |
FR2673200A1 (fr) * | 1991-02-25 | 1992-08-28 | Ugine Aciers | Procede de surdecapage de materiaux en acier tels que les aciers inoxydables et les aciers allies. |
IT1245594B (it) * | 1991-03-29 | 1994-09-29 | Itb Srl | Processo di decapaggio e di passivazione di acciaio inossidabile senza acido nitrico |
IT1255655B (it) * | 1992-08-06 | 1995-11-09 | Processo di decapaggio e passivazione di acciaio inossidabile senza impiego di acido nitrico | |
IT1276955B1 (it) * | 1995-10-18 | 1997-11-03 | Novamax Itb S R L | Processo di decapaggio e passivazione di acciaio inossidabile senza impiego di acido nitrico |
IT1276954B1 (it) * | 1995-10-18 | 1997-11-03 | Novamax Itb S R L | Processo di decapaggio e di passivazione di acciaio inossidabile senza impiego di acido nitrico |
FR2745301B1 (fr) * | 1996-02-27 | 1998-04-03 | Usinor Sacilor | Procede de decapage d'une piece en acier et notamment d'une bande de tole en acier inoxydable |
FR2772050B1 (fr) * | 1997-12-10 | 1999-12-31 | Imphy Sa | Procede de decapage d'acier et notamment d'acier inoxydable |
GB9807286D0 (en) | 1998-04-06 | 1998-06-03 | Solvay Interox Ltd | Pickling process |
DE19850524C2 (de) * | 1998-11-03 | 2002-04-04 | Eilenburger Elektrolyse & Umwelttechnik Gmbh | Nitratfreies Recycling-Beizverfahren für Edelstähle |
IT1312556B1 (it) | 1999-05-03 | 2002-04-22 | Henkel Kgaa | Processo di decapaggio di acciaio inossidabile in assenza di acidonitrico ed in presenza di ioni cloruro |
DE10160318A1 (de) * | 2001-12-07 | 2003-06-18 | Henkel Kgaa | Verfahren zum Beizen von martensitischem oder ferritischem Edelstahl |
WO2008100476A1 (en) * | 2007-02-12 | 2008-08-21 | Henkel Ag & Co. Kgaa | Process for treating metal surfaces |
US8128754B2 (en) | 2008-11-14 | 2012-03-06 | Ak Steel Properties, Inc. | Ferric pickling of silicon steel |
DE102012004907A1 (de) | 2012-03-02 | 2013-09-05 | Sms Siemag Ag | Verfahren zum Beizen von Standard Stählen |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2474526A (en) | 1940-06-15 | 1949-06-28 | Monsanto Chemicals | Picking of stainless steels |
US2564549A (en) * | 1945-07-02 | 1951-08-14 | Albert R Stargardter | Pickling treatment |
DE899890C (de) * | 1952-03-18 | 1953-12-17 | Deutsche Edelstahlwerke Ag | Verfahren zum Regenerieren von Beizbaedern |
JPS549120A (en) | 1977-06-24 | 1979-01-23 | Tokai Electro Chemical Co | Method of controlling acid cleaning liquid for stainless steel |
-
1985
- 1985-01-22 EP EP85420013A patent/EP0188975B8/de not_active Expired - Lifetime
- 1985-01-22 AT AT85420013T patent/ATE121804T1/de not_active IP Right Cessation
- 1985-01-22 DE DE3588013T patent/DE3588013T3/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0188975B2 (de) | 2001-10-24 |
ATE121804T1 (de) | 1995-05-15 |
DE3588013T3 (de) | 2002-06-06 |
DE3588013T2 (de) | 1995-09-14 |
EP0188975B1 (de) | 1995-04-26 |
EP0188975A1 (de) | 1986-07-30 |
DE3588013D1 (de) | 1995-06-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0188975B8 (de) | Verfahren zum säuren Beizen von Stahlen, insbesondere von rostfreien Stahlen | |
EP0811580A3 (de) | Verfahren zur Entfernung von Schwermetall aus Schlamm | |
ES481717A1 (es) | Procedimiento para separar oxidos de nitrogeno de una mezclagaseosa. | |
EP0202824A3 (de) | Oxydationsprozess | |
EP0201278A3 (de) | Verfahren für die Bioumwandlung | |
DK0541448T3 (da) | Fremgangsmåde til kontinuerlig dekapering af stålmaterialer på et behandlingsbånd | |
GB1551587A (en) | Process for the reduction of the concentration of nitric oxide in waste gases by ultra-violet iradiation | |
DE3374695D1 (en) | L-2-hydroxy-4-methylpentanoic acid dehydrogenase, process for its production and its use | |
EP0471662A3 (en) | Process for pickling stainless steel | |
JPS5394444A (en) | Method of treating waste water containing highly concentrated ammonia nitrogen | |
DE3664339D1 (en) | Compositions and process for chemically polishing steel surfaces | |
CA2030126A1 (en) | Process for the chemical conversion of metallic substrates, conversion bath adapted to be used in the same process and concentrate adapted for the preparation of the bath | |
DE3566804D1 (en) | Process for the elimination of gases dissolved in an aqueous solution of ethylene oxide | |
JPS53102866A (en) | Treating method for waste gas comtaining ammonia | |
Chetreff | Process for the Acid Pickling of Steels, in Particular Stainless Steels | |
JPS5351657A (en) | Method for disposing organic waste water | |
UA19836A1 (uk) | Спосіб одержаhhя коhцеhтроваhого розчиhу hітрату амоhію | |
JPS52100748A (en) | Biological denitrification method | |
JPS54136749A (en) | Decolorizing process for organic sludge and clearing-off process for organic matter | |
JPS53120100A (en) | Decomposition method of nitric acid and or nitric acid ion | |
JPS52120963A (en) | Treatment of nitrogen oxide in exhaust gas | |
BG43237A1 (en) | Apparatus for performing conversion of ammonium sulphite- bisulphite solutions with nitric acid in ammonia- acid method for purifying of flue gases | |
JPS54112728A (en) | Descaling method for high ni high cr stainless steel products | |
Dalin et al. | Method of reducing the emission of nitrogen oxides from a liquid containing nitric acid | |
JPS5319672A (en) | Biological denitrification |
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: A1 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
17P | Request for examination filed |
Effective date: 19860916 |
|
19A | Proceedings stayed before grant |
Effective date: 19870525 |
|
19F | Resumption of proceedings before grant (after stay of proceedings) |
Effective date: 19900809 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: UGINE ACIERS DE CHATILLON ET GUEUGNON |
|
17Q | First examination report despatched |
Effective date: 19910603 |
|
ITCL | It: translation for ep claims filed |
Representative=s name: JACOBACCI CASETTA & PERANI S.P.A. |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: UGINE S.A. |
|
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 DE FR GB IT LI LU NL SE |
|
REF | Corresponds to: |
Ref document number: 121804 Country of ref document: AT Date of ref document: 19950515 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 3588013 Country of ref document: DE Date of ref document: 19950601 |
|
ITF | It: translation for a ep patent filed |
Owner name: INVENTION S.N.C. |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19950808 |
|
PLBQ | Unpublished change to opponent data |
Free format text: ORIGINAL CODE: EPIDOS OPPO |
|
PLBI | Opposition filed |
Free format text: ORIGINAL CODE: 0009260 |
|
PLBQ | Unpublished change to opponent data |
Free format text: ORIGINAL CODE: EPIDOS OPPO |
|
26 | Opposition filed |
Opponent name: NOVAMAX I.T.B. SRL Effective date: 19960123 Opponent name: EKA NOBEL AB Effective date: 19960116 |
|
NLR1 | Nl: opposition has been filed with the epo |
Opponent name: NOVAMAX I.T.B. SRL Opponent name: EKA NOBEL AB |
|
PLBF | Reply of patent proprietor to notice(s) of opposition |
Free format text: ORIGINAL CODE: EPIDOS OBSO |
|
PLBF | Reply of patent proprietor to notice(s) of opposition |
Free format text: ORIGINAL CODE: EPIDOS OBSO |
|
PLBQ | Unpublished change to opponent data |
Free format text: ORIGINAL CODE: EPIDOS OPPO |
|
PLAB | Opposition data, opponent's data or that of the opponent's representative modified |
Free format text: ORIGINAL CODE: 0009299OPPO |
|
R26 | Opposition filed (corrected) |
Opponent name: EKA CHEMICALS AB * 960123 NOVAMAX I.T.B. SRL Effective date: 19960116 |
|
NLR1 | Nl: opposition has been filed with the epo |
Opponent name: NOVAMAX I.T.B. SRL Opponent name: EKA CHEMICALS AB |
|
PLAW | Interlocutory decision in opposition |
Free format text: ORIGINAL CODE: EPIDOS IDOP |
|
APAC | Appeal dossier modified |
Free format text: ORIGINAL CODE: EPIDOS NOAPO |
|
APAE | Appeal reference modified |
Free format text: ORIGINAL CODE: EPIDOS REFNO |
|
APAC | Appeal dossier modified |
Free format text: ORIGINAL CODE: EPIDOS NOAPO |
|
APAC | Appeal dossier modified |
Free format text: ORIGINAL CODE: EPIDOS NOAPO |
|
PLAW | Interlocutory decision in opposition |
Free format text: ORIGINAL CODE: EPIDOS IDOP |
|
PUAH | Patent maintained in amended form |
Free format text: ORIGINAL CODE: 0009272 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: PATENT MAINTAINED AS AMENDED |
|
27A | Patent maintained in amended form |
Effective date: 20011024 |
|
AK | Designated contracting states |
Kind code of ref document: B2 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: AEN Free format text: MAINTIEN DU BREVET DONT L'ETENDUE A ETE MODIFIEE |
|
NLR2 | Nl: decision of opposition | ||
NLR3 | Nl: receipt of modified translations in the netherlands language after an opposition procedure | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
GBTA | Gb: translation of amended ep patent filed (gb section 77(6)(b)/1977) | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20031231 Year of fee payment: 20 Ref country code: LU Payment date: 20031231 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20040102 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20040105 Year of fee payment: 20 Ref country code: GB Payment date: 20040105 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20040106 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20040108 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20040109 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20040216 Year of fee payment: 20 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20050121 Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20050121 Ref country code: CH Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20050121 |
|
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 EXPIRATION OF PROTECTION Effective date: 20050122 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050122 |
|
BE20 | Be: patent expired |
Owner name: S.A. *UGINE Effective date: 20050122 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 |
|
EUG | Se: european patent has lapsed | ||
NLV7 | Nl: ceased due to reaching the maximum lifetime of a patent |
Effective date: 20050122 |
|
APAH | Appeal reference modified |
Free format text: ORIGINAL CODE: EPIDOSCREFNO |
|
BE20 | Be: patent expired |
Owner name: S.A. *UGINE Effective date: 20050122 |
|
PLAB | Opposition data, opponent's data or that of the opponent's representative modified |
Free format text: ORIGINAL CODE: 0009299OPPO |
|
PLAB | Opposition data, opponent's data or that of the opponent's representative modified |
Free format text: ORIGINAL CODE: 0009299OPPO |