ES2146539A1 - Recycling procedure for powder containing iron oxide, zinc oxide mixed in homogenization mixer with carbon-based reducing agent - Google Patents

Recycling procedure for powder containing iron oxide, zinc oxide mixed in homogenization mixer with carbon-based reducing agent

Info

Publication number
ES2146539A1
ES2146539A1 ES9801116A ES9801116A ES2146539A1 ES 2146539 A1 ES2146539 A1 ES 2146539A1 ES 9801116 A ES9801116 A ES 9801116A ES 9801116 A ES9801116 A ES 9801116A ES 2146539 A1 ES2146539 A1 ES 2146539A1
Authority
ES
Spain
Prior art keywords
carbon
zinc oxide
weight
based reducing
particles
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
ES9801116A
Other languages
Spanish (es)
Other versions
ES2146539B1 (en
Inventor
Bilbao Alberto Ugarte
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.)
Muga S L
Original Assignee
Muga S L
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 Muga S L filed Critical Muga S L
Priority to ES9801116A priority Critical patent/ES2146539B1/en
Publication of ES2146539A1 publication Critical patent/ES2146539A1/en
Application granted granted Critical
Publication of ES2146539B1 publication Critical patent/ES2146539B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies

Landscapes

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

Abstract

Procedure for recycling steel-plant dust and the product obtained with this procedure, in which steel-plant dust with the composition: iron oxides 20%-50%, zinc oxide 10%-45%, in particles measuring less than 150[mu] mix in a homogenisation mixer with a carbon-based reducing compound at 12%-20% weight in particles measuring less than 200[mu] and an organic binding agent at 1.5%-4% weight once blended the mixture is pressed until a density of between 2 and 3.3 gr/cm<3> is obtained and it then undergoes curing.Applicable to steel metallurgy.< IMAGE >Powder containing 20-50 per cent iron oxide and 10-45 pere cent zinc oxide in particles of a size less than 150 micrometres is recycled by being mixed in a homogenization mixer with a carbon-based reducing agent of 12-20 per cent by weight in particles of a size less than 200 micrometres and with an organic agglomerant of 1.5-4 per cent by weight. - Once homogenized, the mixture is pressed to obtain a density of between 2 and 3.3 gr/cm2, after which it is hardened.
ES9801116A 1998-05-28 1998-05-28 PROCEDURE FOR RECYCLING POWDER AND PRODUCT OBTAINED WITH THIS PROCEDURE. Expired - Fee Related ES2146539B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9801116A ES2146539B1 (en) 1998-05-28 1998-05-28 PROCEDURE FOR RECYCLING POWDER AND PRODUCT OBTAINED WITH THIS PROCEDURE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9801116A ES2146539B1 (en) 1998-05-28 1998-05-28 PROCEDURE FOR RECYCLING POWDER AND PRODUCT OBTAINED WITH THIS PROCEDURE.

Publications (2)

Publication Number Publication Date
ES2146539A1 true ES2146539A1 (en) 2000-08-01
ES2146539B1 ES2146539B1 (en) 2001-03-16

Family

ID=8303951

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9801116A Expired - Fee Related ES2146539B1 (en) 1998-05-28 1998-05-28 PROCEDURE FOR RECYCLING POWDER AND PRODUCT OBTAINED WITH THIS PROCEDURE.

Country Status (1)

Country Link
ES (1) ES2146539B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2212742A1 (en) * 2003-01-09 2004-07-16 Alberto Oñeder, S.A. Recycling process for electric arc furnace dust and product obtained therefrom
WO2009090288A1 (en) * 2008-01-18 2009-07-23 Hera-Amasa S.A. Improved method for recycling steel-plant dust

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3770416A (en) * 1972-04-17 1973-11-06 Univ Michigan Tech Treatment of zinc rich steel mill dusts for reuse in steel making processes
EP0275863A1 (en) * 1986-12-23 1988-07-27 Zia Technology, Inc. Method and apparatus for reclaiming metal values from electric arc furnace flue dust and sludge and rendering residual solids recyclable or non-hazardous
US4836847A (en) * 1988-04-27 1989-06-06 Zia Technology, Inc. Method for reclaiming metal values from electric arc furnace flue dust and sludge and rendering residual solids recyclable or non-hazardous
EP0508166A2 (en) * 1991-04-12 1992-10-14 Zia Metallurgical Processes, Inc. Direct reduction process and apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3770416A (en) * 1972-04-17 1973-11-06 Univ Michigan Tech Treatment of zinc rich steel mill dusts for reuse in steel making processes
EP0275863A1 (en) * 1986-12-23 1988-07-27 Zia Technology, Inc. Method and apparatus for reclaiming metal values from electric arc furnace flue dust and sludge and rendering residual solids recyclable or non-hazardous
US4836847A (en) * 1988-04-27 1989-06-06 Zia Technology, Inc. Method for reclaiming metal values from electric arc furnace flue dust and sludge and rendering residual solids recyclable or non-hazardous
EP0508166A2 (en) * 1991-04-12 1992-10-14 Zia Metallurgical Processes, Inc. Direct reduction process and apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2212742A1 (en) * 2003-01-09 2004-07-16 Alberto Oñeder, S.A. Recycling process for electric arc furnace dust and product obtained therefrom
WO2009090288A1 (en) * 2008-01-18 2009-07-23 Hera-Amasa S.A. Improved method for recycling steel-plant dust
ES2338733A1 (en) * 2008-01-18 2010-05-11 Hera-Amasa, S.A. Improved method for recycling steel-plant dust

Also Published As

Publication number Publication date
ES2146539B1 (en) 2001-03-16

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