JPS5656291A - Stable deposition of oxyhydroxide of iron - Google Patents
Stable deposition of oxyhydroxide of ironInfo
- Publication number
- JPS5656291A JPS5656291A JP13327679A JP13327679A JPS5656291A JP S5656291 A JPS5656291 A JP S5656291A JP 13327679 A JP13327679 A JP 13327679A JP 13327679 A JP13327679 A JP 13327679A JP S5656291 A JPS5656291 A JP S5656291A
- Authority
- JP
- Japan
- Prior art keywords
- iron
- oxyhydroxide
- charged
- fixed
- film
- 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
- Removal Of Specific Substances (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
PURPOSE: To provide an iron-removing filter material in a process of forming film of γ-oxyhydroxide of iron on filter base material such as sand by a method wherein a calcium based hardner such as cement is used as a fixing material so that oxyhydroxide of iron is fixed cheaply and securely.
CONSTITUTION: The filter base material such as sand or zeolite is charged in a rotary reaction kiln, next sodium hydroxide and a ferrous salt such as ferrous sulfate are charged and mixed, then a calcium based fixing agent such as cement, slaked lime or the like is charged, so that γ-oxyhydroxide of iron film is fixed on the surface of the filter material by the action of reaction heat and CO2 gas in the air. In this manner, film of γ-oxyhydroxide of iron is cheaply and securely fixed, thereby providing an iron-removing filter material used in an air oxydation process.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13327679A JPS5656291A (en) | 1979-10-15 | 1979-10-15 | Stable deposition of oxyhydroxide of iron |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13327679A JPS5656291A (en) | 1979-10-15 | 1979-10-15 | Stable deposition of oxyhydroxide of iron |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5656291A true JPS5656291A (en) | 1981-05-18 |
Family
ID=15100840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13327679A Pending JPS5656291A (en) | 1979-10-15 | 1979-10-15 | Stable deposition of oxyhydroxide of iron |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5656291A (en) |
-
1979
- 1979-10-15 JP JP13327679A patent/JPS5656291A/en active Pending
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