ES2178023T3 - METHOD OF DECAPING PRODUCTS CONSTITUTED BY AN ALLOY OF METALS CONTAINING IRON AND OF PRODUCTS CONTAINING TITANIUM OR TITANIUM ALLOYS. - Google Patents
METHOD OF DECAPING PRODUCTS CONSTITUTED BY AN ALLOY OF METALS CONTAINING IRON AND OF PRODUCTS CONTAINING TITANIUM OR TITANIUM ALLOYS.Info
- Publication number
- ES2178023T3 ES2178023T3 ES97949093T ES97949093T ES2178023T3 ES 2178023 T3 ES2178023 T3 ES 2178023T3 ES 97949093 T ES97949093 T ES 97949093T ES 97949093 T ES97949093 T ES 97949093T ES 2178023 T3 ES2178023 T3 ES 2178023T3
- Authority
- ES
- Spain
- Prior art keywords
- titanium
- products
- decaping
- acid
- alloys
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 4
- 229910001069 Ti alloy Inorganic materials 0.000 title abstract 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title abstract 2
- 229910052742 iron Inorganic materials 0.000 title abstract 2
- 229910052751 metal Inorganic materials 0.000 title abstract 2
- 239000002184 metal Substances 0.000 title abstract 2
- 150000002739 metals Chemical class 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000010936 titanium Substances 0.000 title abstract 2
- 229910052719 titanium Inorganic materials 0.000 title abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 4
- 239000002253 acid Substances 0.000 abstract 3
- -1 CHLORID HYDROGEN Chemical class 0.000 abstract 2
- 239000012491 analyte Substances 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 230000003647 oxidation Effects 0.000 abstract 2
- 238000007254 oxidation reaction Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 abstract 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 229910001447 ferric ion Inorganic materials 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- CMWCOKOTCLFJOP-UHFFFAOYSA-N titanium(3+) Chemical compound [Ti+3] CMWCOKOTCLFJOP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
- C25F1/02—Pickling; Descaling
- C25F1/04—Pickling; Descaling in solution
- C25F1/06—Iron or steel
-
- 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
- C23G1/02—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
-
- 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
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
- C25F1/02—Pickling; Descaling
- C25F1/04—Pickling; Descaling in solution
- C25F1/08—Refractory metals
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
ESTA INVENCION SE REFIERE A UN PROCEDIMIENTO DE DECAPADO DE PRODUCTOS CONSTITUIDOS POR ALEACIONES DE METALES QUE CONTIENEN HIERRO Y PRODUCTOS DE TITANIO O ALEACIONES DE TITANIO, EN AUSENCIA DE ACIDO NITRICO COMO AGENTE DE OXIDACION. ESTA INVENCION SE CARACTERIZA POR EL HECHO DE QUE EL PRODUCTO A DECAPAR SE SUMERGE EN EL ANALITO (COMO SOLUCION DE DECAPADO) DE UNA CELULA ELECTROLITICA EN LA CUAL SE FORMA EL ANALITO DE UNA SOLUCION ACUOSA DE ACIDO SULFURICO, DE ACIDO FLUORHIDRICO Y OPCIONALMENTE DE ACIDO FOSFORICO Y DE ACIDO CLORHIDRICO, SIENDO EL CATOLITO FORMADO POR UNA SOLUCION ACUOSA DE ACIDO SULFURICO Y DE AGENTE DE OXIDACION EN LA SOLUCION DE DECAPADO SIENDO EL ION FERRICO O LOS IONES DE TITANIO (III) Y TITANIO (IV).THIS INVENTION REFERS TO A PROCEDURE FOR DECAPING PRODUCTS CONSTITUTED BY ALLOYS OF METALS CONTAINING IRON AND TITANIUM PRODUCTS OR ALLOYS OF TITANIUM, IN THE ABSENCE OF NITRIC ACID AS AN OXIDATION AGENT. THIS INVENTION IS CHARACTERIZED BY THE FACT THAT THE PRODUCT TO BE DECAPED IS SUBMITTED IN THE ANALYTE (AS A DECAPING SOLUTION) OF AN ELECTROLYTIC CELL IN WHICH THE ANALYTE OF A WATER SOLUTION OF SULFURIC ACID, OF FLUORHYDIC ACID AND OPTIONAL ACID PHOSPHORIC AND CHLORID HYDROGEN ACID, BEING THE CATHOLIT FORMED BY A WATER SOLUTION OF SULFURIC ACID AND OXIDATION AGENT IN THE DECAPING SOLUTION, BEING THE FERRIC ION OR THE TITANIUM (III) AND TITANIUM (IV) IONS.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT96RM000849A IT1288407B1 (en) | 1996-12-09 | 1996-12-09 | METHOD FOR PICKLING METAL ALLOY PRODUCTS CONTAINING IRON AND TITANIUM AND ITS ALLOYS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2178023T3 true ES2178023T3 (en) | 2002-12-16 |
Family
ID=11404582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES97949093T Expired - Lifetime ES2178023T3 (en) | 1996-12-09 | 1997-12-05 | METHOD OF DECAPING PRODUCTS CONSTITUTED BY AN ALLOY OF METALS CONTAINING IRON AND OF PRODUCTS CONTAINING TITANIUM OR TITANIUM ALLOYS. |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0960221B1 (en) |
| AT (1) | ATE214436T1 (en) |
| AU (1) | AU7847898A (en) |
| DE (1) | DE69711090T2 (en) |
| ES (1) | ES2178023T3 (en) |
| IT (1) | IT1288407B1 (en) |
| TW (1) | TW451001B (en) |
| WO (1) | WO1998026111A1 (en) |
| ZA (1) | ZA9710983B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1297076B1 (en) | 1997-11-24 | 1999-08-03 | Acciai Speciali Terni Spa | METHOD FOR PICKLING OF STEEL PRODUCTS |
| IT1302202B1 (en) | 1998-09-11 | 2000-07-31 | Henkel Kgaa | ELECTROLYTIC PICKLING PROCESS WITH SOLUTIONS FREE FROM ACIDONITRICO. |
| DE19850524C2 (en) * | 1998-11-03 | 2002-04-04 | Eilenburger Elektrolyse & Umwelttechnik Gmbh | Nitrate-free recycling pickling process for stainless steels |
| AT406486B (en) * | 1998-12-22 | 2000-05-25 | Andritz Patentverwaltung | METHOD FOR STAINLESSING STAINLESS STEEL |
| IT1312556B1 (en) * | 1999-05-03 | 2002-04-22 | Henkel Kgaa | STAINLESS STEEL PICKLING PROCESS IN THE ABSENCE OF ACIDONITRICO AND IN THE PRESENCE OF CHLORIDE IONS |
| KR100777171B1 (en) | 2002-10-15 | 2007-11-16 | 헨켈 코만디트게젤샤프트 아우프 악티엔 | Pickling or brightening/passivating solution and process for steel and stainless steel |
| EP1980650A1 (en) * | 2007-04-05 | 2008-10-15 | Kerma S.A. | Pickling composition free from nitrates and peroxides, and method using such a composition |
| CN103572303B (en) * | 2013-10-24 | 2015-11-25 | 中联重机股份有限公司 | A kind of steel chemical pre-processing method and pickle solution used |
| CN111057935B (en) * | 2019-12-25 | 2021-04-02 | 浦项(张家港)不锈钢股份有限公司 | Preparation method of heat-resistant stainless steel |
| CN113788520A (en) * | 2021-10-08 | 2021-12-14 | 北京首钢吉泰安新材料有限公司 | Iron-chromium-aluminum pickling process, wastewater treatment method and wastewater treatment device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50133125A (en) * | 1974-04-10 | 1975-10-22 | ||
| DE3937438C2 (en) * | 1989-02-23 | 1998-01-29 | Wilfried Simmer | Steel pickling process |
| FR2650303B1 (en) * | 1989-07-26 | 1993-12-10 | Ugine Aciers Chatillon Gueugnon | PROCESS FOR ACIDIC STRIPPING OF METAL PRODUCTS CONTAINING TITANIUM OR AT LEAST ONE CHEMICAL ELEMENT OF THE TITANIUM FAMILY |
| JPH04362183A (en) * | 1991-06-07 | 1992-12-15 | Nippon Paint Co Ltd | Method for regenerating aluminum surface cleaning bath |
| IT1282979B1 (en) * | 1996-05-09 | 1998-04-03 | Novamax Itb S R L | PROCEDURE FOR STEEL PICKLING IN WHICH THE OXIDATION OF THE FERROUS ION IS CARRIED OUT BY ELECTROCHEMISTRY |
-
1996
- 1996-12-09 IT IT96RM000849A patent/IT1288407B1/en active IP Right Grant
-
1997
- 1997-12-05 ES ES97949093T patent/ES2178023T3/en not_active Expired - Lifetime
- 1997-12-05 AU AU78478/98A patent/AU7847898A/en not_active Abandoned
- 1997-12-05 WO PCT/IT1997/000300 patent/WO1998026111A1/en active IP Right Grant
- 1997-12-05 DE DE69711090T patent/DE69711090T2/en not_active Expired - Fee Related
- 1997-12-05 AT AT97949093T patent/ATE214436T1/en not_active IP Right Cessation
- 1997-12-05 EP EP97949093A patent/EP0960221B1/en not_active Expired - Lifetime
- 1997-12-08 ZA ZA9710983A patent/ZA9710983B/en unknown
-
1998
- 1998-03-09 TW TW087103408A patent/TW451001B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0960221B1 (en) | 2002-03-13 |
| TW451001B (en) | 2001-08-21 |
| DE69711090D1 (en) | 2002-04-18 |
| ZA9710983B (en) | 1998-06-15 |
| WO1998026111A1 (en) | 1998-06-18 |
| EP0960221A1 (en) | 1999-12-01 |
| ITRM960849A1 (en) | 1998-06-09 |
| ATE214436T1 (en) | 2002-03-15 |
| IT1288407B1 (en) | 1998-09-22 |
| ITRM960849A0 (en) | 1996-12-09 |
| AU7847898A (en) | 1998-07-03 |
| DE69711090T2 (en) | 2003-07-24 |
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