IT1243406B - Sistema di ossidazione degli ioni ferro nelle soluzioni prive di acidonitrico per il trattamento superficiale di decapaggio o di passivazione di prodotti metallici - Google Patents
Sistema di ossidazione degli ioni ferro nelle soluzioni prive di acidonitrico per il trattamento superficiale di decapaggio o di passivazione di prodotti metalliciInfo
- Publication number
- IT1243406B IT1243406B IT02227290A IT2227290A IT1243406B IT 1243406 B IT1243406 B IT 1243406B IT 02227290 A IT02227290 A IT 02227290A IT 2227290 A IT2227290 A IT 2227290A IT 1243406 B IT1243406 B IT 1243406B
- Authority
- IT
- Italy
- Prior art keywords
- nitric acid
- surface pickling
- metal products
- oxidation
- free solutions
- Prior art date
Links
- 238000002161 passivation Methods 0.000 title abstract 3
- 238000005554 pickling Methods 0.000 title abstract 3
- 229910052751 metal Inorganic materials 0.000 title abstract 2
- 239000002184 metal Substances 0.000 title abstract 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title 1
- 229910001448 ferrous ion Inorganic materials 0.000 title 1
- 230000003647 oxidation Effects 0.000 title 1
- 238000007254 oxidation reaction Methods 0.000 title 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 2
- -1 Fe3+ ions Chemical class 0.000 abstract 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- 239000000654 additive Substances 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 229910021645 metal ion Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 150000002823 nitrates Chemical class 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000012286 potassium permanganate Substances 0.000 abstract 1
- 238000010405 reoxidation reaction Methods 0.000 abstract 1
- 230000003019 stabilising effect Effects 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- 238000004381 surface treatment Methods 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 abstract 1
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT02227290A IT1243406B (it) | 1990-12-03 | 1990-12-03 | Sistema di ossidazione degli ioni ferro nelle soluzioni prive di acidonitrico per il trattamento superficiale di decapaggio o di passivazione di prodotti metallici |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT02227290A IT1243406B (it) | 1990-12-03 | 1990-12-03 | Sistema di ossidazione degli ioni ferro nelle soluzioni prive di acidonitrico per il trattamento superficiale di decapaggio o di passivazione di prodotti metallici |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| IT9022272A0 IT9022272A0 (it) | 1990-12-03 |
| IT9022272A1 IT9022272A1 (it) | 1992-06-04 |
| IT1243406B true IT1243406B (it) | 1994-06-10 |
Family
ID=11193980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT02227290A IT1243406B (it) | 1990-12-03 | 1990-12-03 | Sistema di ossidazione degli ioni ferro nelle soluzioni prive di acidonitrico per il trattamento superficiale di decapaggio o di passivazione di prodotti metallici |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1243406B (it) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004020700A1 (en) * | 2002-08-30 | 2004-03-11 | Henkel Kommanditgesellschaft Auf Aktien | An economic method for restoring the oxidation potential of a pickling solution |
-
1990
- 1990-12-03 IT IT02227290A patent/IT1243406B/it active IP Right Grant
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004020700A1 (en) * | 2002-08-30 | 2004-03-11 | Henkel Kommanditgesellschaft Auf Aktien | An economic method for restoring the oxidation potential of a pickling solution |
Also Published As
| Publication number | Publication date |
|---|---|
| IT9022272A1 (it) | 1992-06-04 |
| IT9022272A0 (it) | 1990-12-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 0001 | Granted |