ES2150772T3 - Procedimiento para el decapado de acero, llevandose a cabo la oxidacion de los iones hierro (ii) por via electrolitica. - Google Patents

Procedimiento para el decapado de acero, llevandose a cabo la oxidacion de los iones hierro (ii) por via electrolitica.

Info

Publication number
ES2150772T3
ES2150772T3 ES97923010T ES97923010T ES2150772T3 ES 2150772 T3 ES2150772 T3 ES 2150772T3 ES 97923010 T ES97923010 T ES 97923010T ES 97923010 T ES97923010 T ES 97923010T ES 2150772 T3 ES2150772 T3 ES 2150772T3
Authority
ES
Spain
Prior art keywords
oxidation
stripping
ions
iron
procedure
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
Application number
ES97923010T
Other languages
English (en)
Inventor
Ioannis Demertzis
Paolo Giordani
Cesare Pedrazzini
Maurizio Busnelli
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.)
Henkel AG and Co KGaA
Acciai Speciali Terni SpA
Original Assignee
Henkel AG and Co KGaA
Acciai Speciali Terni SpA
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 Henkel AG and Co KGaA, Acciai Speciali Terni SpA filed Critical Henkel AG and Co KGaA
Application granted granted Critical
Publication of ES2150772T3 publication Critical patent/ES2150772T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • C23G1/36—Regeneration of waste pickling liquors

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)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Compounds Of Iron (AREA)
  • Heat Treatment Of Steel (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

SE EXPONE UN PROCESO DE DECAPADO DEL ACERO INOXIDABLE, EN EL QUE SE UTILIZA UNA SOLUCION DE DECAPADO QUE CONTIENE IONES DE HF Y FE 3+ COMO COMPONENTES ESENCIALES, Y EN DONDE LA OXIDACION EN FE 3+ DEL FE 2+ FORMADO DURANTE EL PROCESO, A FIN DE MANTENER LA CONCENTRACION DE FE 3+ EN EL VA LOR PREDETERMINADO, SE REALIZA ELECTROLITICAMENTE, SOMETIENDO LA SOLUCION DE DECAPADO, TAL COMO ESTA, A UN PROCESO DE OXIDACION EN UNA CUBETA ELECTROLITICA EQUIPADA CON UN ANODO REALIZADO DE MATERIALES INALTERABLES ELEGIDOS ENTRE EL GRAFITO, EL CARBON GRANULAR, EL PLOMO, Y CON CATODOS REALIZADOS CON ACERO INOXIDABLE, GRAFITO U OTROS MATERIALES INALTERABLES, TRABAJANDO DICHA CUBETA CON UNA TENSION APLICADA DE 1 A 8 V, Y CON UNA DENSIDAD DE CORRIENTE ANODICA SITUADA ENTRE 0,4 Y 15 -A/DM 2 .
ES97923010T 1996-05-09 1997-05-07 Procedimiento para el decapado de acero, llevandose a cabo la oxidacion de los iones hierro (ii) por via electrolitica. Expired - Lifetime ES2150772T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT96MI000936A IT1282979B1 (it) 1996-05-09 1996-05-09 Procedimento per il decapaggio dell'acciaio nel quale la ossidazione dello ione ferroso formatosi viene effettuata per via elettrochimica

Publications (1)

Publication Number Publication Date
ES2150772T3 true ES2150772T3 (es) 2000-12-01

Family

ID=11374234

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97923010T Expired - Lifetime ES2150772T3 (es) 1996-05-09 1997-05-07 Procedimiento para el decapado de acero, llevandose a cabo la oxidacion de los iones hierro (ii) por via electrolitica.

Country Status (11)

Country Link
US (1) US6210558B1 (es)
EP (1) EP0909344B1 (es)
JP (1) JP2000510529A (es)
AT (1) ATE195355T1 (es)
BR (1) BR9708936A (es)
CA (1) CA2253826A1 (es)
DE (1) DE69702765T2 (es)
ES (1) ES2150772T3 (es)
IT (1) IT1282979B1 (es)
RU (1) RU2181150C2 (es)
WO (1) WO1997043463A1 (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1288407B1 (it) * 1996-12-09 1998-09-22 Sviluppo Materiali Spa Metodo per il decapaggio di prodotti in lega metallica contenente ferro e di titanio e sue leghe
IT1290947B1 (it) 1997-02-25 1998-12-14 Sviluppo Materiali Spa Metodo e dispositivo per il decapaggio di prodotti in lega metallica in assenza di acido nitrico e per il recupero di soluzioni esauste
IT1297076B1 (it) * 1997-11-24 1999-08-03 Acciai Speciali Terni Spa Metodo per il decapaggio di prodotti in acciaio
IT1302202B1 (it) 1998-09-11 2000-07-31 Henkel Kgaa Processo di decapaggio elettrolitico con soluzioni esenti da acidonitrico.
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
KR100777171B1 (ko) 2002-10-15 2007-11-16 헨켈 코만디트게젤샤프트 아우프 악티엔 강 및 스테인레스강을 위한 산세 또는 광택/부동태화 용액및 방법
US7611588B2 (en) 2004-11-30 2009-11-03 Ecolab Inc. Methods and compositions for removing metal oxides
US20060289358A1 (en) * 2005-06-22 2006-12-28 Geospec, Inc. Methods and apparatus for removing contaminants from storm water
SI2352861T1 (sl) * 2008-11-14 2018-09-28 Ak Steel Properties, Inc., Postopek za luženje elektrojekla, vsebujočega silicij, s kislo lužilno raztopino, ki vsebuje železove(III) ione
HUE031817T2 (en) 2011-09-26 2017-08-28 Ak Steel Properties Inc Stainless steel pickling in an oxidizing, electrolytic acid bath
GB2499000A (en) * 2012-02-02 2013-08-07 Henkel Ag & Co Kgaa Aqueous acidic pickling solution with hydroxylamine accelerators
CN103132100B (zh) * 2013-03-22 2015-06-17 上海交通大学 一种从煤生产纯净氢气和二氧化碳的工艺方法
TWI657167B (zh) * 2018-02-21 2019-04-21 中國鋼鐵股份有限公司 酸洗鋼帶清洗裝置
CN109234746A (zh) * 2018-11-12 2019-01-18 江阴祥瑞不锈钢精线有限公司 一种不锈钢丝的酸洗工艺方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3622478A (en) * 1960-11-14 1971-11-23 Gen Electric Continuous regeneration of ferric sulfate pickling bath
US3788959A (en) * 1972-05-05 1974-01-29 Sybron Corp Electrodialytic recovery of acid and insoluble products from spent liquors
JPS50133125A (es) * 1974-04-10 1975-10-22
NO760509L (no) * 1976-02-17 1977-08-18 Elkem Spigerverket As Fremgangsm}te for oksydering av metalljoner.
US4113588A (en) * 1976-03-09 1978-09-12 Solex Research Corporation Of Japan Process for recovery of waste H2 SO4 and HCl
DE2850564C2 (de) * 1978-11-22 1982-12-23 Kernforschungsanlage Jülich GmbH, 5170 Jülich Verfahren und Vorrichtung zum Regenerieren einer Kupfer(II)-Chlorid und/oder Eisen(III)-Chlorid enthaltenden Ätzlösung in einer Elektrolysezelle
DE3719604A1 (de) * 1987-06-12 1988-12-22 Markus Maria Dipl In Bringmann Beizen von halbzeugen
DE3937438C2 (de) * 1989-02-23 1998-01-29 Wilfried Simmer Verfahren zum Beizen von Stahl
JPH04362183A (ja) * 1991-06-07 1992-12-15 Nippon Paint Co Ltd アルミニウム表面洗浄浴の再生方法
IT1255655B (it) * 1992-08-06 1995-11-09 Processo di decapaggio e passivazione di acciaio inossidabile senza impiego di acido nitrico
DE4407448C2 (de) * 1994-03-07 1998-02-05 Mib Metallurg Und Oberflaechen Elektrolyseverfahren zum Regenerieren einer Eisen-III-Chlorid- oder Eisen-III-Sulfatlösung, insbesondere zum Sprühätzen von Stahl
DE4435232C2 (de) * 1994-10-04 1997-09-25 Hahnewald Gmbh Chemisch Physik Verfahren zur Regenerierung von flußsäurehaltigen Beizlösungen

Also Published As

Publication number Publication date
DE69702765D1 (de) 2000-09-14
JP2000510529A (ja) 2000-08-15
BR9708936A (pt) 1999-08-03
ITMI960936A0 (es) 1996-05-09
ATE195355T1 (de) 2000-08-15
WO1997043463A1 (en) 1997-11-20
US6210558B1 (en) 2001-04-03
EP0909344B1 (en) 2000-08-09
EP0909344A1 (en) 1999-04-21
DE69702765T2 (de) 2001-04-12
IT1282979B1 (it) 1998-04-03
RU2181150C2 (ru) 2002-04-10
ITMI960936A1 (it) 1997-11-09
CA2253826A1 (en) 1997-11-20

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