GB1292978A - Promoted iron-ore reduction process - Google Patents

Promoted iron-ore reduction process

Info

Publication number
GB1292978A
GB1292978A GB63483/69A GB6348369A GB1292978A GB 1292978 A GB1292978 A GB 1292978A GB 63483/69 A GB63483/69 A GB 63483/69A GB 6348369 A GB6348369 A GB 6348369A GB 1292978 A GB1292978 A GB 1292978A
Authority
GB
United Kingdom
Prior art keywords
additives
bacl
carbonates
metals
reduction
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
GB63483/69A
Inventor
Roger Frank Sebenik
Martin Omar Gernard
Marnell Albin Segura
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering Co
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 Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of GB1292978A publication Critical patent/GB1292978A/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
    • C21B13/0033—In fluidised bed furnaces or apparatus containing a dispersion of the material
    • 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
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen

Landscapes

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

Abstract

1292978 Reducing iron ore ESSO RESEARCH & ENG CO 31 Dec 1969 [7 Jan 1969 23 Sept 1969] 63483/69 Heading C7D Metallic iron is produced in a process comprising feeding particulate iron ore solids through a series of staged beds in which they are fluidized by contact with reducing gas and progressively reduced to provide both ferric and ferrous reduction zones, there being added, directly to a ferrous reduction zone one or more additives selected from carbonates, oxides and hydronides of Group IA metals, salts other than carbonates of metals of Groups IA, IIA, IIIA (Deming Table) and halogen compounds of metalloids of Group IIIA, sufficient to increase the rate of reduction at the existing conditions. Specified additives are NaCl, NaOH, Na 2 CO 3 , CaCl 2 , Na 2 SO 4 , LiCl, Li 2 CO 3 , KBr, BaCl 2 , MgF 2 , Ca(OBr) 2 , CaSO 4 , SrCl 2 , BaCl 2 , BaSO 4 , BCl 3 , BF 3 and AlCl 3 . The concentration of the additives is preferably 0À1-6% by weight. Operating temperatures are preferably 1200-1700‹F. in the ferrous reduction stage. The ore may be specular haematite and the reducing gas a CO/H 2 mixture which may also contain H 2 O, N 2 and CO 2 .
GB63483/69A 1969-01-07 1969-12-31 Promoted iron-ore reduction process Expired GB1292978A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US78958969A 1969-01-07 1969-01-07
US86041169A 1969-09-23 1969-09-23

Publications (1)

Publication Number Publication Date
GB1292978A true GB1292978A (en) 1972-10-18

Family

ID=27120929

Family Applications (1)

Application Number Title Priority Date Filing Date
GB63483/69A Expired GB1292978A (en) 1969-01-07 1969-12-31 Promoted iron-ore reduction process

Country Status (4)

Country Link
JP (1) JPS5144885B1 (en)
FR (1) FR2027885B1 (en)
GB (1) GB1292978A (en)
NL (1) NL169900C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU90972B1 (en) * 2002-10-11 2004-04-13 Wurth Paul Sa Method of reducing fine metal oxide powder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU90972B1 (en) * 2002-10-11 2004-04-13 Wurth Paul Sa Method of reducing fine metal oxide powder

Also Published As

Publication number Publication date
NL169900C (en) 1982-09-01
FR2027885B1 (en) 1974-07-12
NL7000054A (en) 1970-07-09
JPS5144885B1 (en) 1976-12-01
FR2027885A1 (en) 1970-10-02

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Legal Events

Date Code Title Description
49R Reference inserted (sect. 9/1949)
PS Patent sealed
PE20 Patent expired after termination of 20 years