BR9708936A - Processo de decapagem para aço e em particular aço inoxidável - Google Patents

Processo de decapagem para aço e em particular aço inoxidável

Info

Publication number
BR9708936A
BR9708936A BR9708936A BR9708936A BR9708936A BR 9708936 A BR9708936 A BR 9708936A BR 9708936 A BR9708936 A BR 9708936A BR 9708936 A BR9708936 A BR 9708936A BR 9708936 A BR9708936 A BR 9708936A
Authority
BR
Brazil
Prior art keywords
stainless steel
steel
graphite
stripping process
oxidation
Prior art date
Application number
BR9708936A
Other languages
English (en)
Inventor
Ioannis Demertzis
Paolo Giordani
Cesare Pedrazzini
Maurizio Busnelli
Original Assignee
Henkel Kgaa
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 Kgaa filed Critical Henkel Kgaa
Publication of BR9708936A publication Critical patent/BR9708936A/pt

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)
  • Metallurgy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (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)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Heat Treatment Of Steel (AREA)
BR9708936A 1996-05-09 1997-05-07 Processo de decapagem para aço e em particular aço inoxidável BR9708936A (pt)

Applications Claiming Priority (2)

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
PCT/EP1997/002346 WO1997043463A1 (en) 1996-05-09 1997-05-07 Steel pickling process in which the oxidation of the ferrous ion formed is carried out electrolytically

Publications (1)

Publication Number Publication Date
BR9708936A true BR9708936A (pt) 1999-08-03

Family

ID=11374234

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9708936A BR9708936A (pt) 1996-05-09 1997-05-07 Processo de decapagem para aço e em particular aço inoxidável

Country Status (11)

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

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
EP1552035B1 (en) 2002-10-15 2010-08-25 Henkel AG & Co. KGaA Pickling solution and process for stainless steel
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
JP5313358B2 (ja) * 2008-11-14 2013-10-09 エイケイ・スチール・プロパティーズ・インコーポレイテッド 第二鉄イオンを含有する酸性酸洗溶液でケイ素鋼を酸洗いするプロセス
RS55232B1 (sr) 2011-09-26 2017-02-28 Ak Steel Properties Inc Nagrizanje nerđajućeg čelika u oksidacionoj, elektrolitičkoj kiseloj kupki
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 (10)

* 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 (pt) * 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
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

Also Published As

Publication number Publication date
ITMI960936A1 (it) 1997-11-09
DE69702765T2 (de) 2001-04-12
US6210558B1 (en) 2001-04-03
JP2000510529A (ja) 2000-08-15
ES2150772T3 (es) 2000-12-01
CA2253826A1 (en) 1997-11-20
IT1282979B1 (it) 1998-04-03
RU2181150C2 (ru) 2002-04-10
ATE195355T1 (de) 2000-08-15
ITMI960936A0 (pt) 1996-05-09
EP0909344A1 (en) 1999-04-21
EP0909344B1 (en) 2000-08-09
DE69702765D1 (de) 2000-09-14
WO1997043463A1 (en) 1997-11-20

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Legal Events

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Free format text: HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN (DE), ACCIAI SPECIALI TERNI SPA (IT)

B09A Decision: intention to grant [chapter 9.1 patent gazette]
B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time