MD357G2 - Procedeu de înnoire a soluţiei uzate pentru decaparea cuprului - Google Patents
Procedeu de înnoire a soluţiei uzate pentru decaparea cupruluiInfo
- Publication number
- MD357G2 MD357G2 MD95-0198A MD950198A MD357G2 MD 357 G2 MD357 G2 MD 357G2 MD 950198 A MD950198 A MD 950198A MD 357 G2 MD357 G2 MD 357G2
- Authority
- MD
- Moldova
- Prior art keywords
- worked
- etching solution
- copper
- regeneration
- out etching
- Prior art date
Links
- 238000005530 etching Methods 0.000 title abstract 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title abstract 3
- 229910052802 copper Inorganic materials 0.000 title abstract 3
- 239000010949 copper Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 230000008929 regeneration Effects 0.000 title 1
- 238000011069 regeneration method Methods 0.000 title 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 abstract 6
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 235000006408 oxalic acid Nutrition 0.000 abstract 2
- 230000001376 precipitating effect Effects 0.000 abstract 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 229910001431 copper ion Inorganic materials 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Landscapes
- ing And Chemical Polishing (AREA)
Abstract
Invenţia se referă la domeniul tratamentului chimic al metalelor, în particular la decaparea cuprului.Esenţa invenţiei constă în faptul că soluţia uzată se tratează cu acidul oxalic, el fiind precipitator al cuprului. Acidul oxalic se introduce în soluţia uzată în cantitate de 1,96-2,00 grame pentru fiecare gram de cupru precipitat.Realizarea procedeului propus înnoieşte cel puţin de nouă ori soluţia uzată, reduce consumul acidului mineral şi al precipitatorului, precum şi reduce pericolul ecologic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MD95-0198A MD357G2 (ro) | 1995-03-17 | 1995-03-17 | Procedeu de înnoire a soluţiei uzate pentru decaparea cuprului |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MD95-0198A MD357G2 (ro) | 1995-03-17 | 1995-03-17 | Procedeu de înnoire a soluţiei uzate pentru decaparea cuprului |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MD357F1 MD357F1 (ro) | 1995-12-31 |
| MD357G2 true MD357G2 (ro) | 1996-09-30 |
Family
ID=19738648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MD95-0198A MD357G2 (ro) | 1995-03-17 | 1995-03-17 | Procedeu de înnoire a soluţiei uzate pentru decaparea cuprului |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD357G2 (ro) |
-
1995
- 1995-03-17 MD MD95-0198A patent/MD357G2/ro active IP Right Grant
Non-Patent Citations (2)
| Title |
|---|
| 107. 460092. 004. 01-86.Платы печатные.Типовые технологические процессы.Часть 1,1987, с.234,288. * |
| de autor nr. 1280045,SU,Int . Cl6. C 23 F1/46,C 23 G1/36. * |
Also Published As
| Publication number | Publication date |
|---|---|
| MD357F1 (ro) | 1995-12-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG3A | Granted patent for invention | ||
| IF99 | Valid patent on 19990615 |
Free format text: EXPIRES: 20150317 |