ZA981559B - Method for pickling metal alloy products in absence of nitric acid and for recovering exhausted solutions deriving from pickling and apparatus thereof - Google Patents
Method for pickling metal alloy products in absence of nitric acid and for recovering exhausted solutions deriving from pickling and apparatus thereofInfo
- Publication number
- ZA981559B ZA981559B ZA981559A ZA981559A ZA981559B ZA 981559 B ZA981559 B ZA 981559B ZA 981559 A ZA981559 A ZA 981559A ZA 981559 A ZA981559 A ZA 981559A ZA 981559 B ZA981559 B ZA 981559B
- Authority
- ZA
- South Africa
- Prior art keywords
- pickling
- ions
- absence
- nitric acid
- metal alloy
- Prior art date
Links
- 238000005554 pickling Methods 0.000 title abstract 7
- 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
- 238000011084 recovery Methods 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)
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 (1)
Publication Number | Publication Date |
---|---|
ZA981559B true ZA981559B (en) | 1998-08-27 |
Family
ID=11404789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
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 |
Country Status (12)
Country | Link |
---|---|
US (1) | US6221234B1 (xx) |
EP (1) | EP0964940B1 (xx) |
JP (1) | JP3282829B2 (xx) |
AT (1) | ATE216438T1 (xx) |
AU (1) | AU6114798A (xx) |
BR (1) | BR9807755A (xx) |
CA (1) | CA2281573A1 (xx) |
DE (1) | DE69804949T2 (xx) |
ES (1) | ES2179454T3 (xx) |
IT (1) | IT1290947B1 (xx) |
WO (1) | WO1998038353A1 (xx) |
ZA (1) | ZA981559B (xx) |
Families Citing this family (6)
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. |
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 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50133125A (xx) * | 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 |
EP0748396B1 (de) | 1994-03-07 | 1998-12-30 | MIB METALLURGIE UND OBERFLÄCHENTECHNIK UND INNOVATION IN BERLIN GmbH & Co | 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 CA CA002281573A patent/CA2281573A1/en not_active Abandoned
- 1998-02-25 DE DE69804949T patent/DE69804949T2/de not_active Expired - Fee Related
- 1998-02-25 BR BR9807755-4A patent/BR9807755A/pt unknown
- 1998-02-25 AU AU61147/98A patent/AU6114798A/en not_active Abandoned
- 1998-02-25 EP EP98905624A patent/EP0964940B1/en not_active Expired - Lifetime
- 1998-02-25 ES ES98905624T patent/ES2179454T3/es not_active Expired - Lifetime
- 1998-02-25 WO PCT/IT1998/000038 patent/WO1998038353A1/en active IP Right Grant
- 1998-02-25 ZA ZA981559A patent/ZA981559B/xx unknown
- 1998-02-25 JP JP53748498A patent/JP3282829B2/ja not_active Expired - Fee Related
- 1998-02-25 US US09/367,938 patent/US6221234B1/en not_active Expired - Fee Related
- 1998-02-25 AT AT98905624T patent/ATE216438T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US6221234B1 (en) | 2001-04-24 |
EP0964940A1 (en) | 1999-12-22 |
CA2281573A1 (en) | 1998-09-03 |
JP2000511594A (ja) | 2000-09-05 |
DE69804949T2 (de) | 2002-11-28 |
DE69804949D1 (de) | 2002-05-23 |
ATE216438T1 (de) | 2002-05-15 |
WO1998038353A1 (en) | 1998-09-03 |
ES2179454T3 (es) | 2003-01-16 |
ITRM970102A1 (it) | 1998-08-25 |
AU6114798A (en) | 1998-09-18 |
JP3282829B2 (ja) | 2002-05-20 |
EP0964940B1 (en) | 2002-04-17 |
BR9807755A (pt) | 2000-02-22 |
IT1290947B1 (it) | 1998-12-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0539792B1 (en) | Method for regenerating etchant | |
GB1417246A (en) | Electrolytic regeneration of spent etchant and recovery of dissolved etched metal | |
ZA981559B (en) | Method for pickling metal alloy products in absence of nitric acid and for recovering exhausted solutions deriving from pickling and apparatus thereof | |
JP2002322593A (ja) | 電解リン酸塩化成処理方法 | |
KR910001822B1 (ko) | 세륨 및 희토류 원소의 분리공정 | |
ZA9710983B (en) | Method for pickling products in a metal alloy containing iron and in titanium and alloys thereof. | |
GB1196395A (en) | Process for Electrochemically Cleaning and Brightening Copper, Alloy and Brass Strip | |
WO2000026440A3 (de) | Kreislaufverfahren zum beizen von kupfer und kupferlegierungen | |
WO2001086027A1 (en) | Process for extracting copper or iron | |
JPS6338538A (ja) | ニツケル硫化物からのニツケルの回収方法 | |
WO1993006261A1 (en) | Electrowinning metals from solutions | |
JPH02107800A (ja) | 特殊鋼の細長片の電解酸洗い方法 | |
JPS5534607A (en) | Recovering and removing method for useless metals from chromate solution by diaphragm electrolysis | |
Yoshimura et al. | Application of Packed Biopolar Cell to Electrolytic Treatment of Waste Waters,(In Japanese) | |
JPS5959900A (ja) | ステンレス鋼帯の連続電解脱スケ−ル方法 | |
Nakayama et al. | Separation of rare earth metals using a supported liquid membrane with DTPA | |
SU548051A1 (ru) | Способ регенерации железо-меднохлоридны' травильных растворов | |
JP2005281827A (ja) | 銀の電解精製方法 | |
TH31386A (th) | วิธีสำหรับแช่กรดผลิตภัณฑ์ที่เป็นโลหะอัลลอยในสภาพที่ไม่มีกรดไนตริก และสำหรับนำสารละลายที่ใช้แล้วที่มาจากการแช่กรดและอุปกรณ์ของวิธีการนี้กลับมาใช้ใหม่ | |
JPH0324299A (ja) | ステンレス鋼帯の酸洗方法 | |
RU99120294A (ru) | Способ и устройство для травления изделий из металлического сплава при отсутствии азотной кислоты и для регенерации отработанных растворов, выпускаемых после травления | |
SU1382882A1 (ru) | Способ регенерации отработанных растворов | |
KR840001065B1 (ko) | 유기상에 포함되어 있는 우라늄의 회수방법 | |
JPH11335873A (ja) | 塩化鉄系エッチング廃液の再生方法 | |
JPS6148402A (ja) | 鉄抽出による廃塩酸の回収方法 |