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JPS5665670A - Treatment of industrial waste material with high cao content in fine powder form - Google Patents

Treatment of industrial waste material with high cao content in fine powder form

Info

Publication number
JPS5665670A
JPS5665670A JP13978379A JP13978379A JPS5665670A JP S5665670 A JPS5665670 A JP S5665670A JP 13978379 A JP13978379 A JP 13978379A JP 13978379 A JP13978379 A JP 13978379A JP S5665670 A JPS5665670 A JP S5665670A
Authority
JP
Japan
Prior art keywords
waste material
industrial waste
digesting
powder form
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.)
Pending
Application number
JP13978379A
Other languages
Japanese (ja)
Inventor
Kenji Takahata
Hirohisa Ishiguro
Sotoaki Kawaguchi
Kensho Itakura
Toshio Nakamura
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP13978379A priority Critical patent/JPS5665670A/en
Publication of JPS5665670A publication Critical patent/JPS5665670A/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

  • Processing Of Solid Wastes (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

PURPOSE: To attain to reutilize a waste material efficiently and economically by adding a predetermined amount of water as a digesting agent to agglomerate an industrial waste material with a high CaO content in a powder form without creating redusting or the like.
CONSTITUTION: To an industrial waste material with a high CaO content in a fine powder form such as dusts generated from a converter or an electric furnace, water is added in an amount of 1.4W1.7 times against a theoretical digesting reaction of water necessary for digesting the contained CaO into Ca(OH)2 and mixed with said industrial waste material and this mixture is left for about 8hr. to complete the CaO digestion, thereafter the waste material is subjected to the agglomerating treatment. Subsequently, this treated waste material is appropriately granulated by a pelletizer or the like. Moreover, if it is desirable to shorten above described digesting and leaving time, an aqueous solution of a digestion promoting agent (MgCl2, Al2(SO4)3 or the like) may be added along with water.
COPYRIGHT: (C)1981,JPO&Japio
JP13978379A 1979-10-31 1979-10-31 Treatment of industrial waste material with high cao content in fine powder form Pending JPS5665670A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13978379A JPS5665670A (en) 1979-10-31 1979-10-31 Treatment of industrial waste material with high cao content in fine powder form

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13978379A JPS5665670A (en) 1979-10-31 1979-10-31 Treatment of industrial waste material with high cao content in fine powder form

Publications (1)

Publication Number Publication Date
JPS5665670A true JPS5665670A (en) 1981-06-03

Family

ID=15253311

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13978379A Pending JPS5665670A (en) 1979-10-31 1979-10-31 Treatment of industrial waste material with high cao content in fine powder form

Country Status (1)

Country Link
JP (1) JPS5665670A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968203A (en) * 1982-10-12 1984-04-18 東京電力株式会社 Method of treating coal ash
JPS59203680A (en) * 1983-04-30 1984-11-17 Kawasaki Heavy Ind Ltd Treatment of ash formed in coal-burning fluidized-bed boiler
CN105803190A (en) * 2014-12-30 2016-07-27 上海梅山钢铁股份有限公司 Method for preparing cold-bonded pellets of low water content by using dry method electrostatic precipitator dust of converter gas

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5245581A (en) * 1975-10-09 1977-04-11 Kajima Corp Method of treating waste containing tri- and hexavalent cr by caking

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5245581A (en) * 1975-10-09 1977-04-11 Kajima Corp Method of treating waste containing tri- and hexavalent cr by caking

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968203A (en) * 1982-10-12 1984-04-18 東京電力株式会社 Method of treating coal ash
JPS59203680A (en) * 1983-04-30 1984-11-17 Kawasaki Heavy Ind Ltd Treatment of ash formed in coal-burning fluidized-bed boiler
JPS6327073B2 (en) * 1983-04-30 1988-06-01 Kawasaki Heavy Ind Ltd
CN105803190A (en) * 2014-12-30 2016-07-27 上海梅山钢铁股份有限公司 Method for preparing cold-bonded pellets of low water content by using dry method electrostatic precipitator dust of converter gas

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