JPS53102273A - Treating method for powdery substance containing chromium - Google Patents

Treating method for powdery substance containing chromium

Info

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
Application number
JP1698977A
Other languages
Japanese (ja)
Inventor
Toshio Minato
Takuya Morishita
Minoru Tada
Yoshiki Fukatsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sakai Chemical Industry Co Ltd
Original Assignee
Sakai Chemical Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sakai Chemical Industry Co Ltd filed Critical Sakai Chemical Industry Co Ltd
Priority to JP1698977A priority Critical patent/JPS53102273A/en
Publication of JPS53102273A publication Critical patent/JPS53102273A/en
Pending legal-status Critical Current

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
JP1698977A 1977-02-17 1977-02-17 Treating method for powdery substance containing chromium Pending JPS53102273A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (8)

* Cited by examiner, † Cited by third party
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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