JPS53122673A - Method of treating chromium-containing powdery substance - Google Patents
Method of treating chromium-containing powdery substanceInfo
- Publication number
- JPS53122673A JPS53122673A JP3794877A JP3794877A JPS53122673A JP S53122673 A JPS53122673 A JP S53122673A JP 3794877 A JP3794877 A JP 3794877A JP 3794877 A JP3794877 A JP 3794877A JP S53122673 A JPS53122673 A JP S53122673A
- Authority
- JP
- Japan
- Prior art keywords
- powdery substance
- iron salt
- containing powdery
- treating chromium
- water
- 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
- Fire-Extinguishing Compositions (AREA)
- Processing Of Solid Wastes (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
PURPOSE: To provide the subject method comprsing, in treating a powdery substance containing chromium (VI) with sodium sulfide or the like while preventing elution of sodium sulfide or the like added in excess using a water-soluble iron salt at the same time, a water-soluble ferric iron salt is used as the above described iron salt, thereby making it possible to treat the powdery substance in the acidic region.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52037948A JPS5939369B2 (en) | 1977-04-01 | 1977-04-01 | How to treat chromium-containing powder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52037948A JPS5939369B2 (en) | 1977-04-01 | 1977-04-01 | How to treat chromium-containing powder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS53122673A true JPS53122673A (en) | 1978-10-26 |
JPS5939369B2 JPS5939369B2 (en) | 1984-09-22 |
Family
ID=12511763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52037948A Expired JPS5939369B2 (en) | 1977-04-01 | 1977-04-01 | How to treat chromium-containing powder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5939369B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5624084A (en) * | 1979-08-02 | 1981-03-07 | Daido Steel Co Ltd | Antipollution treatment of steel making dust |
DE19510463A1 (en) * | 1995-03-25 | 1996-09-26 | Rdw Abfallwirtschaft Gmbh | Reducing amt. of chromium ions in material e.g. thermal storage bricks |
US6682713B2 (en) | 2001-01-26 | 2004-01-27 | Tosoh Corporation | Iron sulfides, processes for producing the same, iron sulfide mixture, heavy metal treating agent, and method of treating with the agent |
-
1977
- 1977-04-01 JP JP52037948A patent/JPS5939369B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5624084A (en) * | 1979-08-02 | 1981-03-07 | Daido Steel Co Ltd | Antipollution treatment of steel making dust |
DE19510463A1 (en) * | 1995-03-25 | 1996-09-26 | Rdw Abfallwirtschaft Gmbh | Reducing amt. of chromium ions in material e.g. thermal storage bricks |
US6682713B2 (en) | 2001-01-26 | 2004-01-27 | Tosoh Corporation | Iron sulfides, processes for producing the same, iron sulfide mixture, heavy metal treating agent, and method of treating with the agent |
US6906235B2 (en) | 2001-01-26 | 2005-06-14 | Tosoh Corporation | Iron sulfide mixtures; iron sulfide heavy metal treating agents; and methods of treating using such agents |
Also Published As
Publication number | Publication date |
---|---|
JPS5939369B2 (en) | 1984-09-22 |
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