JPS5770242A - Method of recovering metal tin from tin plating sludge under halogen bath - Google Patents
Method of recovering metal tin from tin plating sludge under halogen bathInfo
- Publication number
- JPS5770242A JPS5770242A JP14622380A JP14622380A JPS5770242A JP S5770242 A JPS5770242 A JP S5770242A JP 14622380 A JP14622380 A JP 14622380A JP 14622380 A JP14622380 A JP 14622380A JP S5770242 A JPS5770242 A JP S5770242A
- Authority
- JP
- Japan
- Prior art keywords
- tin
- sludge
- slurry
- added
- halogen bath
- 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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
PURPOSE: To provide a method of recovering metal tin from tin plating sludge under a halogen bath, in which the sludge is made into a slurry, a hot alkali is added to react therewith, the resulting precipitation is separated off, and the filtrate is adjusted to a specified pH range and subjected to electroplating to electrodeposit tin.
CONSTITUTION: Water is added to the tin plating sludge from a halogen bath to convert the sludge into a slurry so that it contains 110W140g of sludge (expressed as dry weight) in 100ml of water. When an about 10% caustic soda aqueous solution that has been heated to 50W80°C is added to the slurry, the Sn in the slurry in converted into Na2SnO4, which is dissolved in the caustic soda solution. At the same time, Fe4[Fe(CN)6]3 coexisted with the Sn in the sludge is precipitated in the form of Fe(OH)3, and is separated off. Then an acid is added to the filtrate to adjust the pH to 7W13, and electroplating is effected to electrodeposite the tin.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14622380A JPS5914094B2 (en) | 1980-10-21 | 1980-10-21 | How to recover metallic tin from halogen bath tin plating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14622380A JPS5914094B2 (en) | 1980-10-21 | 1980-10-21 | How to recover metallic tin from halogen bath tin plating |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5770242A true JPS5770242A (en) | 1982-04-30 |
JPS5914094B2 JPS5914094B2 (en) | 1984-04-03 |
Family
ID=15402890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14622380A Expired JPS5914094B2 (en) | 1980-10-21 | 1980-10-21 | How to recover metallic tin from halogen bath tin plating |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5914094B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5766440A (en) * | 1995-08-28 | 1998-06-16 | Kawasaki Steel Corporation | Method for treating sludge precipitated in a plating bath containing haloid ions |
JP2009035778A (en) * | 2007-08-02 | 2009-02-19 | Dowa Metals & Mining Co Ltd | Method for recovering tin |
-
1980
- 1980-10-21 JP JP14622380A patent/JPS5914094B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5766440A (en) * | 1995-08-28 | 1998-06-16 | Kawasaki Steel Corporation | Method for treating sludge precipitated in a plating bath containing haloid ions |
JP2009035778A (en) * | 2007-08-02 | 2009-02-19 | Dowa Metals & Mining Co Ltd | Method for recovering tin |
Also Published As
Publication number | Publication date |
---|---|
JPS5914094B2 (en) | 1984-04-03 |
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