JPS56133431A - Treatment of iron material polluted by heavy metal - Google Patents

Treatment of iron material polluted by heavy metal

Info

Publication number
JPS56133431A
JPS56133431A JP3623580A JP3623580A JPS56133431A JP S56133431 A JPS56133431 A JP S56133431A JP 3623580 A JP3623580 A JP 3623580A JP 3623580 A JP3623580 A JP 3623580A JP S56133431 A JPS56133431 A JP S56133431A
Authority
JP
Japan
Prior art keywords
soln
mercury
treating
sulfide
iron material
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
Application number
JP3623580A
Other languages
Japanese (ja)
Other versions
JPS6053750B2 (en
Inventor
Kenji Niimi
Hideaki Takagi
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.)
Adeka Corp
Original Assignee
Asahi Denka Kogyo KK
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 Asahi Denka Kogyo KK filed Critical Asahi Denka Kogyo KK
Priority to JP55036235A priority Critical patent/JPS6053750B2/en
Publication of JPS56133431A publication Critical patent/JPS56133431A/en
Publication of JPS6053750B2 publication Critical patent/JPS6053750B2/en
Expired legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Abstract

PURPOSE: To purify iron material polluted with mercury by treating the material with an aqueous soln. contg. ferric chloride and hydrochloric acid and adding sodium sulfide to the treating soln. after the treatment to make the soln. harmless and reusable.
CONSTITUTION: Iron material which has the surface polluted with metallic or inorg. mercury is treated with a treating soln. consisting of a 1,500l ferric chloride soln. of 37% concn., 600l hydrochloric acid of 35% concn. and 1,000l water to dissolve the mercury in the soln. and remove it from the material surface. The material thus purified is washed with water, and the washing water is added to the treating soln. to prevent mercury from being discharged from the treating system. Sodium sulfide is then added to this treating soln. by an equiv. or more to the contained mercury while agitating the soln. in an agitating vessel. The mercury and excess sodium sulfide are converted into insoluble sulfide and iron sulfide, respectively, and they are removed by filtration. The filtrate is a clean ferrous chloride soln. free from mercury, etc., and it can be reused to dissolve mercury.
COPYRIGHT: (C)1981,JPO&Japio
JP55036235A 1980-03-24 1980-03-24 How to dispose of iron materials contaminated with heavy metals Expired JPS6053750B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55036235A JPS6053750B2 (en) 1980-03-24 1980-03-24 How to dispose of iron materials contaminated with heavy metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55036235A JPS6053750B2 (en) 1980-03-24 1980-03-24 How to dispose of iron materials contaminated with heavy metals

Publications (2)

Publication Number Publication Date
JPS56133431A true JPS56133431A (en) 1981-10-19
JPS6053750B2 JPS6053750B2 (en) 1985-11-27

Family

ID=12464104

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55036235A Expired JPS6053750B2 (en) 1980-03-24 1980-03-24 How to dispose of iron materials contaminated with heavy metals

Country Status (1)

Country Link
JP (1) JPS6053750B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012039944A1 (en) * 2010-09-23 2012-03-29 Conocophillips Company Method for removing mercury contamination from solid surfaces
RU2481161C1 (en) * 2011-12-07 2013-05-10 Сергей Васильевич Колесников Method of demercurisation of surfaces contaminated by metallic mercury

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5075934A (en) * 1973-11-12 1975-06-21

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5075934A (en) * 1973-11-12 1975-06-21

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012039944A1 (en) * 2010-09-23 2012-03-29 Conocophillips Company Method for removing mercury contamination from solid surfaces
US8936686B2 (en) 2010-09-23 2015-01-20 Conocophillips Company Method for removing mercury contamination from solid surfaces
RU2481161C1 (en) * 2011-12-07 2013-05-10 Сергей Васильевич Колесников Method of demercurisation of surfaces contaminated by metallic mercury

Also Published As

Publication number Publication date
JPS6053750B2 (en) 1985-11-27

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