IT1290947B1 - Metodo e dispositivo per il decapaggio di prodotti in lega metallica in assenza di acido nitrico e per il recupero di soluzioni esauste - Google Patents
Metodo e dispositivo per il decapaggio di prodotti in lega metallica in assenza di acido nitrico e per il recupero di soluzioni esausteInfo
- Publication number
- IT1290947B1 IT1290947B1 IT97RM000102A ITRM970102A IT1290947B1 IT 1290947 B1 IT1290947 B1 IT 1290947B1 IT 97RM000102 A IT97RM000102 A IT 97RM000102A IT RM970102 A ITRM970102 A IT RM970102A IT 1290947 B1 IT1290947 B1 IT 1290947B1
- Authority
- IT
- Italy
- Prior art keywords
- ions
- pickling
- recovery
- absence
- nitric acid
- Prior art date
Links
- 238000005554 pickling Methods 0.000 title abstract 6
- 238000011084 recovery Methods 0.000 title abstract 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 title abstract 2
- 229910001092 metal group alloy Inorganic materials 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 229910017604 nitric acid Inorganic materials 0.000 title abstract 2
- 150000002500 ions Chemical class 0.000 abstract 5
- -1 Fe3+ ions Chemical class 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 239000012071 phase Substances 0.000 abstract 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 150000001768 cations Chemical class 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000007791 liquid phase Substances 0.000 abstract 1
- 239000012528 membrane Substances 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000010936 titanium Substances 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
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
-
- 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
- C23G1/10—Other heavy metals
- C23G1/106—Other heavy metals refractory metals
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)
- Manufacture And Refinement Of Metals (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Priority Applications (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT97RM000102A IT1290947B1 (it) | 1997-02-25 | 1997-02-25 | Metodo e dispositivo per il decapaggio di prodotti in lega metallica in assenza di acido nitrico e per il recupero di soluzioni esauste |
| ZA981559A ZA981559B (en) | 1997-02-25 | 1998-02-25 | Method for pickling metal alloy products in absence of nitric acid and for recovering exhausted solutions deriving from pickling and apparatus thereof |
| DE69804949T DE69804949T2 (de) | 1997-02-25 | 1998-02-25 | Verfahren zum beizen von metallegierungen enthaltenden produkten ohne salpetersäure und zur rückgewinnung gebrauchter beizlösungen und vorrichtung dafür |
| JP53748498A JP3282829B2 (ja) | 1997-02-25 | 1998-02-25 | 合金製品を硝酸の不存在下に酸洗いする方法および酸洗い廃液を回収する方法並びにそのための装置 |
| AT98905624T ATE216438T1 (de) | 1997-02-25 | 1998-02-25 | Verfahren zum beizen von metallegierungen enthaltenden produkten ohne salpetersäure und zur rückgewinnung gebrauchter beizlösungen und vorrichtung dafür |
| PCT/IT1998/000038 WO1998038353A1 (en) | 1997-02-25 | 1998-02-25 | Method for pickling products of a metal alloy in absence of nitric and for recovering exhausted pickling solutions and apparatus therefore |
| US09/367,938 US6221234B1 (en) | 1997-02-25 | 1998-02-25 | Method for pickling products of a metal alloy in absence of nitric acid and for recovering exhausted pickling solutions and apparatus therefore |
| EP98905624A EP0964940B1 (en) | 1997-02-25 | 1998-02-25 | Method for pickling products of a metal alloy in absence of nitric and for recovering exhausted pickling solutions and apparatus therefore |
| ES98905624T ES2179454T3 (es) | 1997-02-25 | 1998-02-25 | Metodo para el decapado de productos de una aleacion metalica, en ausencia de acido nitrico, y para la recuperacion de soluciones agotadas procedentes del decapado, y aparatos para ello. |
| CA002281573A CA2281573A1 (en) | 1997-02-25 | 1998-02-25 | Method for pickling products of a metal alloy in absence of nitric and for recovering exhausted pickling solutions and apparatus therefore |
| BR9807755-4A BR9807755A (pt) | 1997-02-25 | 1998-02-25 | Processo e aparelho para decapagem de produtos em uma liga metálica contendo ferro e produtos feitos de titánio e ligas do mesmo |
| AU61147/98A AU6114798A (en) | 1997-02-25 | 1998-02-25 | Method for pickling products of a metal alloy in absence of nitric and for recovering exhausted pickling solutions and apparatus therefore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT97RM000102A IT1290947B1 (it) | 1997-02-25 | 1997-02-25 | Metodo e dispositivo per il decapaggio di prodotti in lega metallica in assenza di acido nitrico e per il recupero di soluzioni esauste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ITRM970102A1 ITRM970102A1 (it) | 1998-08-25 |
| IT1290947B1 true IT1290947B1 (it) | 1998-12-14 |
Family
ID=11404789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT97RM000102A IT1290947B1 (it) | 1997-02-25 | 1997-02-25 | Metodo e dispositivo per il decapaggio di prodotti in lega metallica in assenza di acido nitrico e per il recupero di soluzioni esauste |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US6221234B1 (it) |
| EP (1) | EP0964940B1 (it) |
| JP (1) | JP3282829B2 (it) |
| AT (1) | ATE216438T1 (it) |
| AU (1) | AU6114798A (it) |
| BR (1) | BR9807755A (it) |
| CA (1) | CA2281573A1 (it) |
| DE (1) | DE69804949T2 (it) |
| ES (1) | ES2179454T3 (it) |
| IT (1) | IT1290947B1 (it) |
| WO (1) | WO1998038353A1 (it) |
| ZA (1) | ZA981559B (it) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023148516A1 (en) * | 2022-02-02 | 2023-08-10 | C.I.E. - Compagnia Italiana Ecologia Srl | Process for free and combinated hydrofluoric acid recovery from stainless steel pickling bath |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1297076B1 (it) | 1997-11-24 | 1999-08-03 | Acciai Speciali Terni Spa | Metodo per il decapaggio di prodotti in acciaio |
| DE19850524C2 (de) * | 1998-11-03 | 2002-04-04 | Eilenburger Elektrolyse & Umwelttechnik Gmbh | Nitratfreies Recycling-Beizverfahren für Edelstähle |
| DE102012111105A1 (de) | 2012-11-19 | 2014-05-22 | Uwe Gräßel | Verfahren zur Rückgewinnung von säurehaltigen Beizlösungen |
| DE102019200832A1 (de) | 2019-01-24 | 2020-07-30 | MTU Aero Engines AG | VERFAHREN ZUM ENTFERNEN VON Cr(VI)-IONEN AUS EINER WÄSSRIGEN ELEKTROLYTLÖSUNG |
| IT202000005848A1 (it) * | 2020-03-19 | 2021-09-19 | Tenova Spa | Processo per decapare e/o passivare un acciaio inossidabile. |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50133125A (it) * | 1974-04-10 | 1975-10-22 | ||
| DE3937438C2 (de) | 1989-02-23 | 1998-01-29 | Wilfried Simmer | Verfahren zum Beizen von Stahl |
| FR2650303B1 (fr) * | 1989-07-26 | 1993-12-10 | Ugine Aciers Chatillon Gueugnon | Procede de decapage en bain acide de produits metalliques contenant du titane ou au moins un element chimique de la famille du titane |
| DE3943142A1 (de) | 1989-12-28 | 1991-07-04 | Metallgesellschaft Ag | Elektrolyseverfahren zur aufbereitung metallionen enthaltender altbeizen oder produktstroeme |
| JP3308345B2 (ja) | 1992-08-21 | 2002-07-29 | ユニチカ株式会社 | 電解槽の操作方法 |
| 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 |
| DE59504691D1 (de) | 1994-03-07 | 1999-02-11 | 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 |
| IT1282979B1 (it) | 1996-05-09 | 1998-04-03 | Novamax Itb S R L | Procedimento per il decapaggio dell'acciaio nel quale la ossidazione dello ione ferroso formatosi viene effettuata per via elettrochimica |
-
1997
- 1997-02-25 IT IT97RM000102A patent/IT1290947B1/it active IP Right Grant
-
1998
- 1998-02-25 ES ES98905624T patent/ES2179454T3/es not_active Expired - Lifetime
- 1998-02-25 CA CA002281573A patent/CA2281573A1/en not_active Abandoned
- 1998-02-25 JP JP53748498A patent/JP3282829B2/ja not_active Expired - Fee Related
- 1998-02-25 BR BR9807755-4A patent/BR9807755A/pt unknown
- 1998-02-25 AT AT98905624T patent/ATE216438T1/de not_active IP Right Cessation
- 1998-02-25 ZA ZA981559A patent/ZA981559B/xx unknown
- 1998-02-25 DE DE69804949T patent/DE69804949T2/de not_active Expired - Fee Related
- 1998-02-25 WO PCT/IT1998/000038 patent/WO1998038353A1/en active IP Right Grant
- 1998-02-25 US US09/367,938 patent/US6221234B1/en not_active Expired - Fee Related
- 1998-02-25 AU AU61147/98A patent/AU6114798A/en not_active Abandoned
- 1998-02-25 EP EP98905624A patent/EP0964940B1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023148516A1 (en) * | 2022-02-02 | 2023-08-10 | C.I.E. - Compagnia Italiana Ecologia Srl | Process for free and combinated hydrofluoric acid recovery from stainless steel pickling bath |
Also Published As
| Publication number | Publication date |
|---|---|
| ITRM970102A1 (it) | 1998-08-25 |
| ZA981559B (en) | 1998-08-27 |
| EP0964940B1 (en) | 2002-04-17 |
| CA2281573A1 (en) | 1998-09-03 |
| AU6114798A (en) | 1998-09-18 |
| DE69804949D1 (de) | 2002-05-23 |
| DE69804949T2 (de) | 2002-11-28 |
| BR9807755A (pt) | 2000-02-22 |
| US6221234B1 (en) | 2001-04-24 |
| JP2000511594A (ja) | 2000-09-05 |
| JP3282829B2 (ja) | 2002-05-20 |
| ATE216438T1 (de) | 2002-05-15 |
| WO1998038353A1 (en) | 1998-09-03 |
| EP0964940A1 (en) | 1999-12-22 |
| ES2179454T3 (es) | 2003-01-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 0001 | Granted |