ES2292857T3 - Un metodo economico para restaurar el potencial de oxidacion de una solucion de decapado. - Google Patents
Un metodo economico para restaurar el potencial de oxidacion de una solucion de decapado. Download PDFInfo
- Publication number
- ES2292857T3 ES2292857T3 ES02807707T ES02807707T ES2292857T3 ES 2292857 T3 ES2292857 T3 ES 2292857T3 ES 02807707 T ES02807707 T ES 02807707T ES 02807707 T ES02807707 T ES 02807707T ES 2292857 T3 ES2292857 T3 ES 2292857T3
- Authority
- ES
- Spain
- Prior art keywords
- iii
- concentration
- gaseous
- oxygen
- treatment solution
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
-
- 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
-
- 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)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2002/009730 WO2004020700A1 (en) | 2002-08-30 | 2002-08-30 | An economic method for restoring the oxidation potential of a pickling solution |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2292857T3 true ES2292857T3 (es) | 2008-03-16 |
Family
ID=31970239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES02807707T Expired - Lifetime ES2292857T3 (es) | 2002-08-30 | 2002-08-30 | Un metodo economico para restaurar el potencial de oxidacion de una solucion de decapado. |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1552038B1 (de) |
AT (1) | ATE368758T1 (de) |
AU (1) | AU2002333772A1 (de) |
DE (1) | DE60221584T2 (de) |
ES (1) | ES2292857T3 (de) |
WO (1) | WO2004020700A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1394958B1 (it) * | 2009-02-17 | 2012-07-27 | Condoroil Impianti Srl | Processo di ossidazione catalitica del ferro bivalente a ferro trivalente nei bagni di decapaggio per acciai inossidabili a base di acido cloridrico e/o sue miscele con altri acidi organici e inorganici. |
EP3771749A1 (de) * | 2019-07-29 | 2021-02-03 | Ewald Dörken Ag | Verfahren zur passivierung metallischer substrate |
JP7176137B2 (ja) * | 2020-01-09 | 2022-11-21 | Primetals Technologies Japan株式会社 | 鋼板の酸洗方法及び酸洗装置 |
IT202000005848A1 (it) | 2020-03-19 | 2021-09-19 | Tenova Spa | Processo per decapare e/o passivare un acciaio inossidabile. |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1243406B (it) * | 1990-12-03 | 1994-06-10 | Vittorio Degara | Sistema di ossidazione degli ioni ferro nelle soluzioni prive di acidonitrico per il trattamento superficiale di decapaggio o di passivazione di prodotti metallici |
DE69612957T2 (de) * | 1996-03-14 | 2001-09-06 | Condoroil Impianti S.R.L., Casale Litta | Beizen von rostfreien Stahlen mit kontinuierliche katalytische Oxidation der Beizlösung |
DE19755350A1 (de) * | 1997-12-12 | 1999-06-17 | Henkel Kgaa | Verfahren zum Beizen und Passivieren von Edelstahl |
IT1303814B1 (it) * | 1998-12-02 | 2001-02-23 | Henkel Kgaa | Apparecchiatura e metodo per controllare processi di decapaggio peracciaio. |
-
2002
- 2002-08-30 EP EP02807707A patent/EP1552038B1/de not_active Expired - Lifetime
- 2002-08-30 DE DE60221584T patent/DE60221584T2/de not_active Expired - Lifetime
- 2002-08-30 ES ES02807707T patent/ES2292857T3/es not_active Expired - Lifetime
- 2002-08-30 WO PCT/EP2002/009730 patent/WO2004020700A1/en active IP Right Grant
- 2002-08-30 AU AU2002333772A patent/AU2002333772A1/en not_active Abandoned
- 2002-08-30 AT AT02807707T patent/ATE368758T1/de active
Also Published As
Publication number | Publication date |
---|---|
DE60221584T2 (de) | 2008-04-17 |
WO2004020700A1 (en) | 2004-03-11 |
EP1552038B1 (de) | 2007-08-01 |
EP1552038A1 (de) | 2005-07-13 |
ATE368758T1 (de) | 2007-08-15 |
AU2002333772A1 (en) | 2004-03-19 |
DE60221584D1 (de) | 2007-09-13 |
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