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FR2373612A1 - PROCESS FOR EXTRACTING ZINC CONTAINED IN STEEL WASTE - Google Patents

PROCESS FOR EXTRACTING ZINC CONTAINED IN STEEL WASTE

Info

Publication number
FR2373612A1
FR2373612A1 FR7637568A FR7637568A FR2373612A1 FR 2373612 A1 FR2373612 A1 FR 2373612A1 FR 7637568 A FR7637568 A FR 7637568A FR 7637568 A FR7637568 A FR 7637568A FR 2373612 A1 FR2373612 A1 FR 2373612A1
Authority
FR
France
Prior art keywords
zinc
steel waste
steel
reducing
oxide
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
FR7637568A
Other languages
French (fr)
Other versions
FR2373612B1 (en
Inventor
Louis Ivanier
Jean-Marc Steiler
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.)
Institut de Recherches de la Siderurgie Francaise IRSID
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
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 Institut de Recherches de la Siderurgie Francaise IRSID filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Priority to FR7637568A priority Critical patent/FR2373612A1/en
Publication of FR2373612A1 publication Critical patent/FR2373612A1/en
Application granted granted Critical
Publication of FR2373612B1 publication Critical patent/FR2373612B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/06—Making pig-iron in the blast furnace using top gas in the blast furnace process
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/34—Obtaining zinc oxide
    • 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
    • Y02P10/25—Process efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Procédé d'extraction du zinc contenu dans les déchets sidérurgiques, consistant à préchauffer ces produits à l'étape 1, à les traiter par un agent réducteur, préchauffé en 4, contenant CO et/ou H2 et les formes oxydées de ces composés à l'étape 2 en choisissant la température et les rapports des teneurs en forme réductrice et en forme oxydée du mélange réducteur de manière à réduire sélectivement l'oxyde de zinc et les refroidir à l'étape 3, à l'aide d'un courant gazeux, une fois la réduction de l'oxyde de zinc achevée. Le zinc métal, volatilisé à l'étape 2 est entraîné avec la phase gazeuse, où il subit une réoxydation, et il est recueilli en 10 sous forme d'oxyde. Ce procédé permet de traiter tous les déchets sidérurgiques contenant du zinc, provenant aussi bien de l'élaboration de la fonte que de celle de l'acier, et fournit un produit susceptible d'être employé comme matière première dans l'industrie d'élaboration du zinc.Process for extracting the zinc contained in iron and steel waste, consisting in preheating these products in step 1, in treating them with a reducing agent, preheated in 4, containing CO and / or H2 and the oxidized forms of these compounds in step 1 'step 2 by choosing the temperature and the ratios of the reducing form and oxidized form contents of the reducing mixture so as to selectively reduce the zinc oxide and cool them in step 3, using a gas stream , once the reduction of the zinc oxide is complete. The zinc metal, volatilized in step 2 is entrained with the gas phase, where it undergoes reoxidation, and it is collected at 10 in the form of oxide. This process makes it possible to treat all steel waste containing zinc, from both the production of cast iron and that of steel, and provides a product that can be used as a raw material in the production industry. zinc.

FR7637568A 1976-12-13 1976-12-13 PROCESS FOR EXTRACTING ZINC CONTAINED IN STEEL WASTE Granted FR2373612A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7637568A FR2373612A1 (en) 1976-12-13 1976-12-13 PROCESS FOR EXTRACTING ZINC CONTAINED IN STEEL WASTE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7637568A FR2373612A1 (en) 1976-12-13 1976-12-13 PROCESS FOR EXTRACTING ZINC CONTAINED IN STEEL WASTE

Publications (2)

Publication Number Publication Date
FR2373612A1 true FR2373612A1 (en) 1978-07-07
FR2373612B1 FR2373612B1 (en) 1979-03-30

Family

ID=9181022

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7637568A Granted FR2373612A1 (en) 1976-12-13 1976-12-13 PROCESS FOR EXTRACTING ZINC CONTAINED IN STEEL WASTE

Country Status (1)

Country Link
FR (1) FR2373612A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501723A1 (en) * 1981-03-13 1982-09-17 Samim Soc Azionaria Minero Met PROCESS AND APPARATUS FOR THE RECOVERY AND CONCENTRATION OF NON-FERROUS MATERIALS SUCH AS ZINC AND LEAD
EP0150805A3 (en) * 1984-01-26 1985-08-21 Sumitomo Heavy Industries, Ltd A method for recovering zinc from substances containing a zinc compound
EP0626457A1 (en) * 1993-05-27 1994-11-30 Metallgesellschaft Aktiengesellschaft Method for working up zinc- and lead-bearing steel plant residues
LU90273B1 (en) * 1998-08-11 2000-02-14 Wurth Paul Sa Process for the thermal treatment of residues containing heavy metals and iron oxide
WO2005001362A1 (en) * 2003-06-30 2005-01-06 Furnace Engineering Pty Ltd High temperature process
AU2004252178B2 (en) * 2003-06-30 2009-10-08 Furnace Engineering Pty Ltd High temperature process
WO2013025200A1 (en) * 2011-08-16 2013-02-21 Empire Technology Development Llc Electric arc furnace dust recycling apparatus and method
CN114480752A (en) * 2022-01-25 2022-05-13 江苏沙钢集团有限公司 Method for judging zinc enrichment of large blast furnace

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501723A1 (en) * 1981-03-13 1982-09-17 Samim Soc Azionaria Minero Met PROCESS AND APPARATUS FOR THE RECOVERY AND CONCENTRATION OF NON-FERROUS MATERIALS SUCH AS ZINC AND LEAD
EP0150805A3 (en) * 1984-01-26 1985-08-21 Sumitomo Heavy Industries, Ltd A method for recovering zinc from substances containing a zinc compound
EP0626457A1 (en) * 1993-05-27 1994-11-30 Metallgesellschaft Aktiengesellschaft Method for working up zinc- and lead-bearing steel plant residues
DE4317578A1 (en) * 1993-05-27 1994-12-01 Metallgesellschaft Ag Process for processing zinc and lead containing metallurgical residues
US5474592A (en) * 1993-05-27 1995-12-12 Metallgesellschaft Aktiengesellschaft Method of reprocessing metallurgical residues, which contain zinc and lead
AU671016B2 (en) * 1993-05-27 1996-08-08 Metallgesellschaft Aktiengesellschaft Method of reprocessing residual metallurgical materials which contain zinc and lead
LU90273B1 (en) * 1998-08-11 2000-02-14 Wurth Paul Sa Process for the thermal treatment of residues containing heavy metals and iron oxide
WO2000009766A1 (en) * 1998-08-11 2000-02-24 Paul Wurth S.A. Method for the thermal processing of residues containing heavy metals and iron oxide
US6451086B2 (en) 1998-08-11 2002-09-17 Paul Wurth S.A. Process for thermal treatment of residual materials containing heavy metal and iron oxide
WO2005001362A1 (en) * 2003-06-30 2005-01-06 Furnace Engineering Pty Ltd High temperature process
AU2004252178B2 (en) * 2003-06-30 2009-10-08 Furnace Engineering Pty Ltd High temperature process
WO2013025200A1 (en) * 2011-08-16 2013-02-21 Empire Technology Development Llc Electric arc furnace dust recycling apparatus and method
US8845780B2 (en) 2011-08-16 2014-09-30 Empire Technology Development Llc Electric arc furnace dust recycling apparatus and method
US9376732B2 (en) 2011-08-16 2016-06-28 Empire Technology Development Llc Electric arc furnace dust recycling apparatus and method
CN114480752A (en) * 2022-01-25 2022-05-13 江苏沙钢集团有限公司 Method for judging zinc enrichment of large blast furnace
CN114480752B (en) * 2022-01-25 2023-02-03 江苏沙钢集团有限公司 Method for judging zinc enrichment of large blast furnace

Also Published As

Publication number Publication date
FR2373612B1 (en) 1979-03-30

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Legal Events

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