JPS5695391A - Method for removing iron from liquid containing iron - Google Patents
Method for removing iron from liquid containing ironInfo
- Publication number
- JPS5695391A JPS5695391A JP17046379A JP17046379A JPS5695391A JP S5695391 A JPS5695391 A JP S5695391A JP 17046379 A JP17046379 A JP 17046379A JP 17046379 A JP17046379 A JP 17046379A JP S5695391 A JPS5695391 A JP S5695391A
- Authority
- JP
- Japan
- Prior art keywords
- iron
- ferric
- liquid
- hydroxide
- liquid containing
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 16
- 229910052742 iron Inorganic materials 0.000 title abstract 8
- 239000007788 liquid Substances 0.000 title abstract 6
- 150000001875 compounds Chemical class 0.000 abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 239000013522 chelant Substances 0.000 abstract 3
- 229960004887 ferric hydroxide Drugs 0.000 abstract 3
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 abstract 3
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 1
- 239000000920 calcium hydroxide Substances 0.000 abstract 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 230000001376 precipitating effect Effects 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Removal Of Specific Substances (AREA)
Abstract
PURPOSE: To separate and remove iron from a liquid containing iron as an ethylene diamine tetraacetatic acid (EDTA)-ferric chelate compound, by precipitating a ferric hydroxide by adding a strong alkali agent to the liquid.
CONSTITUTION: To a liquid, such as waste photographic processing water, containing iron as an ethylene diamine tetraacetatic acid-ferric chelate compound, a strong alkali agent, such as a sodium hydroxide and calcium hydroxide, is added. Then, the compound is decomposed and the iron is precipitated as a ferric hydroxide. Later, the precipitate of this ferric hydroxide is separated in the solid-liquid separating method. Thus, the iron can efficiently be removed from the liquid containing the iron as the EDTA-ferric chelate compound.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17046379A JPS5695391A (en) | 1979-12-28 | 1979-12-28 | Method for removing iron from liquid containing iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17046379A JPS5695391A (en) | 1979-12-28 | 1979-12-28 | Method for removing iron from liquid containing iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5695391A true JPS5695391A (en) | 1981-08-01 |
Family
ID=15905398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17046379A Pending JPS5695391A (en) | 1979-12-28 | 1979-12-28 | Method for removing iron from liquid containing iron |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5695391A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS539264A (en) * | 1976-07-13 | 1978-01-27 | Babcock Hitachi Kk | After-treating method for absorbent having been used in simultaneous desulfurization and denitration |
| JPS5465169A (en) * | 1977-11-02 | 1979-05-25 | Babcock Hitachi Kk | Settling method for iron hydroxide |
| JPS5465198A (en) * | 1977-11-02 | 1979-05-25 | Babcock Hitachi Kk | Recovering method for iron ions |
-
1979
- 1979-12-28 JP JP17046379A patent/JPS5695391A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS539264A (en) * | 1976-07-13 | 1978-01-27 | Babcock Hitachi Kk | After-treating method for absorbent having been used in simultaneous desulfurization and denitration |
| JPS5465169A (en) * | 1977-11-02 | 1979-05-25 | Babcock Hitachi Kk | Settling method for iron hydroxide |
| JPS5465198A (en) * | 1977-11-02 | 1979-05-25 | Babcock Hitachi Kk | Recovering method for iron ions |
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