JPS5669225A - Preparation of active zinc white - Google Patents
Preparation of active zinc whiteInfo
- Publication number
- JPS5669225A JPS5669225A JP14076979A JP14076979A JPS5669225A JP S5669225 A JPS5669225 A JP S5669225A JP 14076979 A JP14076979 A JP 14076979A JP 14076979 A JP14076979 A JP 14076979A JP S5669225 A JPS5669225 A JP S5669225A
- Authority
- JP
- Japan
- Prior art keywords
- solution
- zinc
- eluted
- zinc white
- active zinc
- 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
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
PURPOSE: To obtain a high-quality active zinc white readily, by eluting a zinc-containing dust and/or zinc in sludge with sulfuric acid or hydrochloric acid, removing impurities in the eluted solution, followed by reacting the prepared solution with a NaOH solution under specific condition.
CONSTITUTION: A zinc-containing dust and/or zinc in sludge is eluted with sulfuric acid or hydrochloric acid to give a zinc sulfate solution or a zinc chloride solution. Na2CO3, NaOCl, etc. is added to the solution so that Fe and Mn are removed and Zn powder is added so that Cd, Pb, Cu, NiCo, etc. are removed, to purify the eluted solution. The prepared purified solution is reacted with a NaOH solution in pH 7W11 at a solution temperature not lower than 50°C, to give the desired active zinc white only by drying process without requiring distillation and calcination process.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14076979A JPS5669225A (en) | 1979-10-31 | 1979-10-31 | Preparation of active zinc white |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14076979A JPS5669225A (en) | 1979-10-31 | 1979-10-31 | Preparation of active zinc white |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5669225A true JPS5669225A (en) | 1981-06-10 |
Family
ID=15276312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14076979A Pending JPS5669225A (en) | 1979-10-31 | 1979-10-31 | Preparation of active zinc white |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5669225A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012513370A (en) * | 2008-12-23 | 2012-06-14 | ポスコ | Method for producing high purity zinc oxide using secondary dust |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5361593A (en) * | 1976-11-15 | 1978-06-02 | Kowa Seikou Kk | Method of making zinc hydroxide |
JPS53116296A (en) * | 1977-03-22 | 1978-10-11 | Dowa Mining Co | Wet process for producing zinc oxide |
-
1979
- 1979-10-31 JP JP14076979A patent/JPS5669225A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5361593A (en) * | 1976-11-15 | 1978-06-02 | Kowa Seikou Kk | Method of making zinc hydroxide |
JPS53116296A (en) * | 1977-03-22 | 1978-10-11 | Dowa Mining Co | Wet process for producing zinc oxide |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012513370A (en) * | 2008-12-23 | 2012-06-14 | ポスコ | Method for producing high purity zinc oxide using secondary dust |
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