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WO2005017216A3 - Recycling process for sludges and dusts from blast furnace and steel works - Google Patents

Recycling process for sludges and dusts from blast furnace and steel works Download PDF

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Publication number
WO2005017216A3
WO2005017216A3 PCT/BR2004/000152 BR2004000152W WO2005017216A3 WO 2005017216 A3 WO2005017216 A3 WO 2005017216A3 BR 2004000152 W BR2004000152 W BR 2004000152W WO 2005017216 A3 WO2005017216 A3 WO 2005017216A3
Authority
WO
WIPO (PCT)
Prior art keywords
blast furnace
steel works
recycling process
sludges
dusts
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.)
Ceased
Application number
PCT/BR2004/000152
Other languages
French (fr)
Other versions
WO2005017216A2 (en
Inventor
Yamamoto Mauro Fumio
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.)
K & K Tecnologias Industrias Sa
K & K Tecnologias Ind S A
Original Assignee
K & K Tecnologias Industrias Sa
K & K Tecnologias Ind S A
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 K & K Tecnologias Industrias Sa, K & K Tecnologias Ind S A filed Critical K & K Tecnologias Industrias Sa
Publication of WO2005017216A2 publication Critical patent/WO2005017216A2/en
Publication of WO2005017216A3 publication Critical patent/WO2005017216A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/02—Working-up flue dust
    • 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
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/005—Separation by a physical processing technique only, e.g. by mechanical breaking
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The present invention concerns to a recycling process for blast furnace sludge, or powder from dry dust catcher, or steel works fine and coarse sludge, or industrial or metallurgical wastes through the combination of the process steps of ore pulp formation (10), ultrasound treatment (9), conditioning (13), gravimetric concentration (15, 20, 22), hydro-cycloning (28, 30), magnetic separation (33), flotation (34) and drying (18) for the recovery of carbon, that can be in the form of coke, mineral coal or charcoal, and metallic iron (Fe), iron oxides (FexOy), silica (SiO2), calcium oxide (CaO) and zinc oxide (ZnO).
PCT/BR2004/000152 2003-08-14 2004-08-13 Recycling process for sludges and dusts from blast furnace and steel works Ceased WO2005017216A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BRPI0302809-7 2003-08-14
BR0302809-7A BR0302809A (en) 2003-08-14 2003-08-14 Recycling process of blast furnace sludge or steelmaking sludge and industrial or metallurgical tailings by combining the following processes: conditioning, gravimetric concentration, cycloning, magnetic separation and flotation

Publications (2)

Publication Number Publication Date
WO2005017216A2 WO2005017216A2 (en) 2005-02-24
WO2005017216A3 true WO2005017216A3 (en) 2005-03-24

Family

ID=34140322

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2004/000152 Ceased WO2005017216A2 (en) 2003-08-14 2004-08-13 Recycling process for sludges and dusts from blast furnace and steel works

Country Status (2)

Country Link
BR (1) BR0302809A (en)
WO (1) WO2005017216A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1321078C (en) * 2005-09-14 2007-06-13 北京天地人环保科技有限公司 Method for sludge reduction using ultrasonic treatment
BRPI0901149A2 (en) * 2009-01-09 2010-11-16 Minesteel Ltda process of implementation and improvement of the pellet feed by the use of steel mill fines
AU2009311053B2 (en) * 2009-06-16 2015-05-21 Tata Steel Limited A process for producing high grade blast furnace feed from poor grade iron ore ultra fines
CN102069036B (en) * 2010-11-12 2012-10-03 山东乾舜矿冶科技股份有限公司 Method for recycling waste magnesia carbon brick
US8540798B2 (en) * 2011-01-04 2013-09-24 Guilherme Santana Lopes Gomes Systems and methods for recycling steelmaking converter sludge
CN102747228A (en) * 2012-07-18 2012-10-24 云南昆欧科技有限责任公司 Method for recycling valuable elements from blast furnace gas mud
CN103551244B (en) * 2013-11-21 2015-07-01 河北联合大学 Method for recycling valuable elements from blast furnace flocculated dust
CN116441059B (en) * 2023-03-24 2024-02-09 浙江大学 Fly ash flotation method for coupling ultrasonic emulsification and ultrasonic intensified adsorption decarburization

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5282616A (en) * 1975-12-30 1977-07-11 Nippon Steel Corp Treatment of iron-containing powdery material
US4250027A (en) * 1978-01-31 1981-02-10 Agence Nationale De Valorisation De La Recherche (Anvar) Method for recovering the lead and zinc values in secondary scrubber muds from blast furnace gases
GB2094669A (en) * 1981-03-12 1982-09-22 Kloeckner Humboldt Deutz Ag Extracting plastics-free lead products from scrap accumulators
US4416768A (en) * 1982-04-02 1983-11-22 Quebec Cartier Mining Company Ore beneficiation
US4696353A (en) * 1986-05-16 1987-09-29 W. S. Tyler, Incorporated Drilling mud cleaning system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5282616A (en) * 1975-12-30 1977-07-11 Nippon Steel Corp Treatment of iron-containing powdery material
US4250027A (en) * 1978-01-31 1981-02-10 Agence Nationale De Valorisation De La Recherche (Anvar) Method for recovering the lead and zinc values in secondary scrubber muds from blast furnace gases
GB2094669A (en) * 1981-03-12 1982-09-22 Kloeckner Humboldt Deutz Ag Extracting plastics-free lead products from scrap accumulators
US4416768A (en) * 1982-04-02 1983-11-22 Quebec Cartier Mining Company Ore beneficiation
US4696353A (en) * 1986-05-16 1987-09-29 W. S. Tyler, Incorporated Drilling mud cleaning system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 197734, Derwent World Patents Index; Class M24, AN 1977-60085Y, XP002315945 *

Also Published As

Publication number Publication date
BR0302809A (en) 2005-03-29
WO2005017216A2 (en) 2005-02-24

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