JPS5588846A - Aluminum hydroxide sludge treating method - Google Patents
Aluminum hydroxide sludge treating methodInfo
- Publication number
- JPS5588846A JPS5588846A JP16097678A JP16097678A JPS5588846A JP S5588846 A JPS5588846 A JP S5588846A JP 16097678 A JP16097678 A JP 16097678A JP 16097678 A JP16097678 A JP 16097678A JP S5588846 A JPS5588846 A JP S5588846A
- Authority
- JP
- Japan
- Prior art keywords
- aluminum hydroxide
- sludge
- hydroxide sludge
- aluminous
- obtd
- 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.)
- Granted
Links
Abstract
PURPOSE: To easily obtain a cheap aluminous desiccating agent by adding transition alumina to aluminum hydroxide sludge followed by molding, hydration and calcination.
CONSTITUTION: Transition alumina obtd. by heating aluminum trihydrate to about 500W1000°C is mixed into aluminum hydroxide sludge recovered from Al (alloy) surface treating waste water, etc. The mixt. is kneaded and molded into a desired shape. The moldings are then hydrated in hot water or steam and calcined at about 350W800°C to give an aluminous desiccating agent of high activity. By this method hydrated moldings of high granule strength are obtd. using water in sludge, so the sludge can be solidified easily and cheaply.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16097678A JPS5588846A (en) | 1978-12-28 | 1978-12-28 | Aluminum hydroxide sludge treating method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16097678A JPS5588846A (en) | 1978-12-28 | 1978-12-28 | Aluminum hydroxide sludge treating method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5588846A true JPS5588846A (en) | 1980-07-04 |
JPS5735054B2 JPS5735054B2 (en) | 1982-07-27 |
Family
ID=15726202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16097678A Granted JPS5588846A (en) | 1978-12-28 | 1978-12-28 | Aluminum hydroxide sludge treating method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5588846A (en) |
-
1978
- 1978-12-28 JP JP16097678A patent/JPS5588846A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5735054B2 (en) | 1982-07-27 |
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