JPS53102273A - Treating method for powdery substance containing chromium - Google Patents
Treating method for powdery substance containing chromiumInfo
- Publication number
- JPS53102273A JPS53102273A JP1698977A JP1698977A JPS53102273A JP S53102273 A JPS53102273 A JP S53102273A JP 1698977 A JP1698977 A JP 1698977A JP 1698977 A JP1698977 A JP 1698977A JP S53102273 A JPS53102273 A JP S53102273A
- Authority
- JP
- Japan
- Prior art keywords
- substance containing
- powdery substance
- treating method
- containing chromium
- hexavalent chromium
- 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
Abstract
PURPOSE: To reduce hexavalent chromium to trivalent chromium simply, rapidly and, furthermore, economically, and thus to perform the treatment for preventing the environmental pollution, by adding sodium sulfide or sodium hydrogensulfide and a water-soluble ferrous salt to the powdery substance containing hexavalent chromium and kneading the mixture in the wet condition.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1698977A JPS53102273A (en) | 1977-02-17 | 1977-02-17 | Treating method for powdery substance containing chromium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1698977A JPS53102273A (en) | 1977-02-17 | 1977-02-17 | Treating method for powdery substance containing chromium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS53102273A true JPS53102273A (en) | 1978-09-06 |
Family
ID=11931429
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1698977A Pending JPS53102273A (en) | 1977-02-17 | 1977-02-17 | Treating method for powdery substance containing chromium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS53102273A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5745380A (en) * | 1980-08-29 | 1982-03-15 | Ebara Infilco Co Ltd | Treatment of waste material containing heavy metal |
JPS62132579A (en) * | 1985-12-06 | 1987-06-15 | Sanyo Mokuzai Boufu Kk | Treatment for making waste non-polluting |
JPH06246255A (en) * | 1993-02-23 | 1994-09-06 | Nippon Steel Corp | Method for treating material containing heavy metal |
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 |
JP2009195791A (en) * | 2008-02-20 | 2009-09-03 | Oji Paper Co Ltd | Treatment method of incineration ash |
-
1977
- 1977-02-17 JP JP1698977A patent/JPS53102273A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5745380A (en) * | 1980-08-29 | 1982-03-15 | Ebara Infilco Co Ltd | Treatment of waste material containing heavy metal |
JPS6147154B2 (en) * | 1980-08-29 | 1986-10-17 | Ebara Infilco | |
JPS62132579A (en) * | 1985-12-06 | 1987-06-15 | Sanyo Mokuzai Boufu Kk | Treatment for making waste non-polluting |
JPH06246255A (en) * | 1993-02-23 | 1994-09-06 | Nippon Steel Corp | Method for treating material containing heavy metal |
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 |
JP2009195791A (en) * | 2008-02-20 | 2009-09-03 | Oji Paper Co Ltd | Treatment method of incineration ash |
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