RO83666B1 - Procedeu pentru decapararea materialeor feroase sau neferoase - Google Patents
Procedeu pentru decapararea materialeor feroase sau neferoaseInfo
- Publication number
- RO83666B1 RO83666B1 RO106144A RO10614481A RO83666B1 RO 83666 B1 RO83666 B1 RO 83666B1 RO 106144 A RO106144 A RO 106144A RO 10614481 A RO10614481 A RO 10614481A RO 83666 B1 RO83666 B1 RO 83666B1
- Authority
- RO
- Romania
- Prior art keywords
- ferrous
- pickling
- ferrous materials
- sulfuric acid
- materials
- Prior art date
Links
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title abstract 6
- 239000000463 material Substances 0.000 title abstract 4
- 238000005554 pickling Methods 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 6
- 238000004519 manufacturing process Methods 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- ZPTVNYMJQHSSEA-UHFFFAOYSA-N 4-nitrotoluene Chemical compound CC1=CC=C([N+]([O-])=O)C=C1 ZPTVNYMJQHSSEA-UHFFFAOYSA-N 0.000 abstract 1
- ZDTXQHVBLWYPHS-UHFFFAOYSA-N 4-nitrotoluene-2-sulfonic acid Chemical compound CC1=CC=C([N+]([O-])=O)C=C1S(O)(=O)=O ZDTXQHVBLWYPHS-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 239000012895 dilution Substances 0.000 abstract 1
- 238000010790 dilution Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Inventia se refera la un procedeu de decapare a suprafetelor materialelor ferose sau neferoase, care utilizeaza o solutie de decapare continînd 14....18% acid sulfuric, 0,25....3% acid p-nitrotoluensulfonici; o,5....1,5% p-nitrotoluen, solutii preparate din acidul sulfuric rezidual rezultat la fabricare a acidului sulfuric rezidual rezultat la fabricare a acidului p-nitrotoluen sulfonic care prin diluare cu apa este adus la concentratia indicata de mai sus decapararea avînd loc la o temperatura cuprinsa între 40....90 degree C, la un raport între 40.....90 degree C, la un raport între volumul produsului supus decaparii de 4: 1, în cazul materialelor feroase si de 1:5......1:2 în cazul materialelor neferoase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO106144A RO83666B1 (ro) | 1981-12-29 | 1981-12-29 | Procedeu pentru decapararea materialeor feroase sau neferoase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO106144A RO83666B1 (ro) | 1981-12-29 | 1981-12-29 | Procedeu pentru decapararea materialeor feroase sau neferoase |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO83666A2 RO83666A2 (ro) | 1984-03-15 |
| RO83666B1 true RO83666B1 (ro) | 1984-03-30 |
Family
ID=20110839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO106144A RO83666B1 (ro) | 1981-12-29 | 1981-12-29 | Procedeu pentru decapararea materialeor feroase sau neferoase |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO83666B1 (ro) |
-
1981
- 1981-12-29 RO RO106144A patent/RO83666B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO83666A2 (ro) | 1984-03-15 |
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