GB1138695A - Process for the treatment of finely divided metalliferous material - Google Patents

Process for the treatment of finely divided metalliferous material

Info

Publication number
GB1138695A
GB1138695A GB3143266A GB3143266A GB1138695A GB 1138695 A GB1138695 A GB 1138695A GB 3143266 A GB3143266 A GB 3143266A GB 3143266 A GB3143266 A GB 3143266A GB 1138695 A GB1138695 A GB 1138695A
Authority
GB
United Kingdom
Prior art keywords
finely divided
july
mesh
mixture
size distribution
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.)
Expired
Application number
GB3143266A
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.)
STRATEGIC PATENTS Ltd
Original Assignee
STRATEGIC PATENTS 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 STRATEGIC PATENTS Ltd filed Critical STRATEGIC PATENTS Ltd
Publication of GB1138695A publication Critical patent/GB1138695A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • 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

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

Abstract

1,138,695. Recovering iron from dust. STRATEGIC PATENTS Ltd. July 13,1966 [July 20, 1965], No.31432/66. Heading C7D. Finely divided metalliferous material, e. g. blast furnace dust, mill scale &c., is treated for the recovery of its metal content by (a) ensuring that the size distribution of the material is such that no more than 20% is minus 200 mesh (Tyler) and at least 10% is plus 14 mesh, (b) mixing the material with a carbonaceous reducing agent, (c) passing the mixture to a rotary kiln containing a reducing atmosphere at 800 to 1050‹C. (the kiln having a wall temperature of at least 600‹C. ) and (d) recovering the reduced material in a non- oxidizing atmosphere. The size distribution of the mixture is ensured by either mixing coarser and finer fractions or by partial agglomeration. The reducing agent e.g. coal, coke or coke breeze may be 85 - 130% of the stoichiometric quantity, and slagging agents may also be present in the feed material.
GB3143266A 1965-07-20 1966-07-13 Process for the treatment of finely divided metalliferous material Expired GB1138695A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US47346765A 1965-07-20 1965-07-20

Publications (1)

Publication Number Publication Date
GB1138695A true GB1138695A (en) 1969-01-01

Family

ID=23879643

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3143266A Expired GB1138695A (en) 1965-07-20 1966-07-13 Process for the treatment of finely divided metalliferous material

Country Status (3)

Country Link
DE (1) DE1508085A1 (en)
GB (1) GB1138695A (en)
NL (1) NL6610147A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006061788A1 (en) * 2004-12-07 2006-06-15 Nu-Iron Technology, Llc Method and system for producing metallic iron nuggets
WO2008020357A2 (en) * 2006-08-01 2008-02-21 Iron Mineral Beneficiation Services (Proprietary) Limited A method for the commercial production of iron

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7695544B2 (en) 2004-12-07 2010-04-13 Nu-Iron Technology, Llc Method and system for producing metallic iron nuggets
US7628839B2 (en) 2004-12-07 2009-12-08 Iwao Iwasaki Method and system for producing metallic iron nuggets
US7632335B2 (en) 2004-12-07 2009-12-15 Nu-Iron Technology, Llc Method and system for producing metallic iron nuggets
US7641712B2 (en) * 2004-12-07 2010-01-05 Nu-Iron Technology, Llc Method and system for producing metallic iron nuggets
WO2006061788A1 (en) * 2004-12-07 2006-06-15 Nu-Iron Technology, Llc Method and system for producing metallic iron nuggets
AU2005312999B2 (en) * 2004-12-07 2010-05-20 Nu-Iron Technology, Llc Method and system for producing metallic iron nuggets
US8158054B2 (en) 2004-12-07 2012-04-17 Nu-Iron Technology, Llc Method and system for producing metallic iron nuggets
CN101151380B (en) * 2004-12-07 2012-12-05 纽-铁科技有限责任公司 Method and system for producing metallic iron nuggets
WO2008020357A2 (en) * 2006-08-01 2008-02-21 Iron Mineral Beneficiation Services (Proprietary) Limited A method for the commercial production of iron
WO2008020357A3 (en) * 2006-08-01 2008-05-22 Iron Mineral Beneficiation Ser A method for the commercial production of iron
RU2465336C2 (en) * 2006-08-01 2012-10-27 Айрон Минерал Бенефикейшн Сервисез (Проприетари) Лимитед Iron commercial manufacturing method
US8613787B2 (en) 2006-08-01 2013-12-24 Iron Mineral Beneficiation Services (Proprietary) Limited Method for the commercial production of iron
US9150939B2 (en) 2006-08-01 2015-10-06 Iron Mineral Beneficiation Services (Proprietary) Limited Method for the commercial production of iron

Also Published As

Publication number Publication date
DE1508085A1 (en) 1969-04-03
NL6610147A (en) 1967-01-23

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