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JPS6490082A - Treating method for making steelmaking dust harmless - Google Patents

Treating method for making steelmaking dust harmless

Info

Publication number
JPS6490082A
JPS6490082A JP24927687A JP24927687A JPS6490082A JP S6490082 A JPS6490082 A JP S6490082A JP 24927687 A JP24927687 A JP 24927687A JP 24927687 A JP24927687 A JP 24927687A JP S6490082 A JPS6490082 A JP S6490082A
Authority
JP
Japan
Prior art keywords
carbonate
steelmaking dust
sodium
potassium
ion
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
JP24927687A
Other languages
Japanese (ja)
Inventor
Masaru Furusaki
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.)
KANKYO TEKUNOSU KK
Original Assignee
KANKYO TEKUNOSU 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 KANKYO TEKUNOSU KK filed Critical KANKYO TEKUNOSU KK
Priority to JP24927687A priority Critical patent/JPS6490082A/en
Publication of JPS6490082A publication Critical patent/JPS6490082A/en
Pending 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

Landscapes

  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

PURPOSE:To prevent the elution of Cd, Pb, etc., from steelmaking dust by adding 0.5-6% potassium carbonate and sodium carbonate separately or in mixture to harmful steelmaking dust and kneading them. CONSTITUTION:The potassium carbonate and sodium carbonate are added separately or in mixture by 0.5-6% to harmful steelmaking dust and kneaded. Thereby, water-insoluble cadmium carbonate and lead carbonate are produced, and hydroxides of heavy metals are produced with potassium ion and sodium ion as alkali sources. The alkalinity of the dust after treated is not lost and the elution of heavy metals is prevented, because even when potassium ion and sodium ion are reacted with carbon dioxide in the air to form potassium carbonate and sodium carbonate, they are water-soluble and show alkalinity.
JP24927687A 1987-10-01 1987-10-01 Treating method for making steelmaking dust harmless Pending JPS6490082A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24927687A JPS6490082A (en) 1987-10-01 1987-10-01 Treating method for making steelmaking dust harmless

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24927687A JPS6490082A (en) 1987-10-01 1987-10-01 Treating method for making steelmaking dust harmless

Publications (1)

Publication Number Publication Date
JPS6490082A true JPS6490082A (en) 1989-04-05

Family

ID=17190554

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24927687A Pending JPS6490082A (en) 1987-10-01 1987-10-01 Treating method for making steelmaking dust harmless

Country Status (1)

Country Link
JP (1) JPS6490082A (en)

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