JPS5591979A - Recovering and circulating apparatus for alkaline etching waste solution - Google Patents
Recovering and circulating apparatus for alkaline etching waste solutionInfo
- Publication number
- JPS5591979A JPS5591979A JP16283978A JP16283978A JPS5591979A JP S5591979 A JPS5591979 A JP S5591979A JP 16283978 A JP16283978 A JP 16283978A JP 16283978 A JP16283978 A JP 16283978A JP S5591979 A JPS5591979 A JP S5591979A
- Authority
- JP
- Japan
- Prior art keywords
- container
- soln
- copper
- recovering
- water layer
- 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.)
- Pending
Links
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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/46—Regeneration of etching compositions
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)
- ing And Chemical Polishing (AREA)
Abstract
PURPOSE:To enable NH3 and chlorine ion to be recycled by combinedly setting a unit for separating an etching waste soln. into a copper-contg. oil layer and a water layer with a copper extracting reagent, a unit for treating the oil layer with sulfuric acid, a unit for treating the water layer with a recovering soln., etc. through control mechanisms. CONSTITUTION:An alkali etching waste soln. contg. Cu(NH3)3Cl, etc. is introduced into copper extraction container 12 through auxiliary container 3 and waste soln. container 8. In container 12 a copper extracting reagent is added to the soln. from container 14 and agitated to separate the soln. into an oil layer (R2Cu) and a water layer [Cu(NH3)2Cl] through separation plate 63. The water layer is introduced into container 26 through oil adsorption column 25, pH-adjusted, and treated with a recovering soln. (NH3 soln. + ammonium chlirode) from container 29 to regenerate NH3 and chlorine ion according to the reaction equation. They are fed to container 34 and recycled to etching machine 1. On the other hand, the oil layer is treated with sulfuric acid in back extraction container 41 to be separated into RH and copper sulfate. Copper is recovered from the copper sulfate, and the RH is reused as the copper extracting reagent through containers 48, 14. The above- mentioned operations are automatically controlled with control box 5 through pumps, level gauges, pH meters, etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16283978A JPS5591979A (en) | 1978-12-29 | 1978-12-29 | Recovering and circulating apparatus for alkaline etching waste solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16283978A JPS5591979A (en) | 1978-12-29 | 1978-12-29 | Recovering and circulating apparatus for alkaline etching waste solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5591979A true JPS5591979A (en) | 1980-07-11 |
Family
ID=15762216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16283978A Pending JPS5591979A (en) | 1978-12-29 | 1978-12-29 | Recovering and circulating apparatus for alkaline etching waste solution |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5591979A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0638662A1 (en) * | 1993-08-13 | 1995-02-15 | IN.TEC. ITALIA INTERNATIONAL ENVIRONMENT TECHNOLOGY S.r.l. | A process for recovering spent metal etching solutions |
| WO1999013130A1 (en) * | 1997-09-10 | 1999-03-18 | Grs Recycling Gmbh & Co. Kg | Method for preparing alkaline metal-containing etching solutions |
| WO1999051795A1 (en) * | 1998-04-06 | 1999-10-14 | Celi Ivo L | Method for preparing alkaline etching solutions containing metal |
| KR20000058364A (en) * | 2000-05-02 | 2000-10-05 | 정진동 | The methods of copper sulpate extract from copper erodibility waste sludge in the electronic circuit board panel. |
-
1978
- 1978-12-29 JP JP16283978A patent/JPS5591979A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0638662A1 (en) * | 1993-08-13 | 1995-02-15 | IN.TEC. ITALIA INTERNATIONAL ENVIRONMENT TECHNOLOGY S.r.l. | A process for recovering spent metal etching solutions |
| WO1999013130A1 (en) * | 1997-09-10 | 1999-03-18 | Grs Recycling Gmbh & Co. Kg | Method for preparing alkaline metal-containing etching solutions |
| WO1999051795A1 (en) * | 1998-04-06 | 1999-10-14 | Celi Ivo L | Method for preparing alkaline etching solutions containing metal |
| KR20000058364A (en) * | 2000-05-02 | 2000-10-05 | 정진동 | The methods of copper sulpate extract from copper erodibility waste sludge in the electronic circuit board panel. |
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