JPS5460235A - Treatment of electrolytic waste acid in electrolytic oxidation treatment of aluminium plate and moldings - Google Patents
Treatment of electrolytic waste acid in electrolytic oxidation treatment of aluminium plate and moldingsInfo
- Publication number
- JPS5460235A JPS5460235A JP12702777A JP12702777A JPS5460235A JP S5460235 A JPS5460235 A JP S5460235A JP 12702777 A JP12702777 A JP 12702777A JP 12702777 A JP12702777 A JP 12702777A JP S5460235 A JPS5460235 A JP S5460235A
- Authority
- JP
- Japan
- Prior art keywords
- aluminium sulfate
- electrolytic
- waste water
- sulfate
- supplied
- 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
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
PURPOSE: To recover aluminium sulfate by the procedure in which a part of waste water containing aluminium sulfate discharged from electrolytic bath is concentrated to crystallize aluminium sulfate and then the gelled aluminum sulfate sludge is reacted with the waste water.
CONSTITUTION: A part of electrolytic waste water sent from the electrolytic bath 12 to the waste acid tank 13 is supplied to the evaporation-concentration apparatus 14 to concentrate the waste water, and then supplied to the vaccum crystallizer 15 to crystallize aluminium sulfate. The aluminium sulfate so obtained is filtered by the separator 16 to recover filterate as recovered sulfuric acid which is in turn sent to the supplementary liquid tank 11 where its concentration is readjusted and the liquid is supplied to the electrolytic bath 12. On the other hand, the filter cake is sent to the filter cake tank 17, where it is mixed with the remainder of the electrolytic waste water and then supplied to the aluminium sulfate manufacturing apparatus 18. Then, it is mixed with gelled aluminium sulfate sludge from the scum storage tank 19 and then subjected to a heat reaction to form aluminium sulfate. Thus, this method greately cuts down on the procurement cost of crystalline alumininm sulfate and also obviates the needs for excess apparatus
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12702777A JPS5460235A (en) | 1977-10-22 | 1977-10-22 | Treatment of electrolytic waste acid in electrolytic oxidation treatment of aluminium plate and moldings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12702777A JPS5460235A (en) | 1977-10-22 | 1977-10-22 | Treatment of electrolytic waste acid in electrolytic oxidation treatment of aluminium plate and moldings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5460235A true JPS5460235A (en) | 1979-05-15 |
Family
ID=14949855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12702777A Pending JPS5460235A (en) | 1977-10-22 | 1977-10-22 | Treatment of electrolytic waste acid in electrolytic oxidation treatment of aluminium plate and moldings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5460235A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03164426A (en) * | 1990-11-01 | 1991-07-16 | Yoshida Kogyo Kk <Ykk> | Reaction temperature control device for continuously producing aluminum sulfate aqueous solution from aluminum hydroxide sludge |
| JPH0598500A (en) * | 1991-05-28 | 1993-04-20 | Nissan Eng Kk | Method for perfectly recycling free acid from waste aluminum electrolytic solution |
| JP2012219002A (en) * | 2011-04-13 | 2012-11-12 | Asahi Kagaku Kogyo Co Ltd | Method of manufacturing aluminum sulfate |
| CN102794025A (en) * | 2012-03-23 | 2012-11-28 | 恩森（台州）化学有限公司 | Concentration and recovery device for industrial electroplating wastewater |
-
1977
- 1977-10-22 JP JP12702777A patent/JPS5460235A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03164426A (en) * | 1990-11-01 | 1991-07-16 | Yoshida Kogyo Kk <Ykk> | Reaction temperature control device for continuously producing aluminum sulfate aqueous solution from aluminum hydroxide sludge |
| JPH0598500A (en) * | 1991-05-28 | 1993-04-20 | Nissan Eng Kk | Method for perfectly recycling free acid from waste aluminum electrolytic solution |
| JP2012219002A (en) * | 2011-04-13 | 2012-11-12 | Asahi Kagaku Kogyo Co Ltd | Method of manufacturing aluminum sulfate |
| CN102794025A (en) * | 2012-03-23 | 2012-11-28 | 恩森（台州）化学有限公司 | Concentration and recovery device for industrial electroplating wastewater |
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