MX370626B - Tratamientos de comprimidos de reduccion directa de hierro (dri). - Google Patents

Tratamientos de comprimidos de reduccion directa de hierro (dri).

Info

Publication number
MX370626B
MX370626B MX2015011224A MX2015011224A MX370626B MX 370626 B MX370626 B MX 370626B MX 2015011224 A MX2015011224 A MX 2015011224A MX 2015011224 A MX2015011224 A MX 2015011224A MX 370626 B MX370626 B MX 370626B
Authority
MX
Mexico
Prior art keywords
dri
foam
iron
direct reduction
pellets
Prior art date
Application number
MX2015011224A
Other languages
English (en)
Other versions
MX2015011224A (es
Inventor
Donald C Roe
Joseph Hamnik
James Wilkins
Original Assignee
Chemtreat Inc
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 Chemtreat Inc filed Critical Chemtreat Inc
Publication of MX2015011224A publication Critical patent/MX2015011224A/es
Publication of MX370626B publication Critical patent/MX370626B/es

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
    • C21B13/0086—Conditioning, transformation of reduced iron ores
    • C21B13/0093—Protecting against oxidation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/008—Use of special additives or fluxing agents
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacture Of Iron (AREA)

Abstract

Un aspecto proporciona un método para tratar los comprimidos de hierro reducido de forma directa (DRI) al aplicar una espuma a los comprimidos de DRI; la espuma puede incluir una espuma que tiene una relación de expansión de aproximadamente 20 a 40 y un tamaño de burbuja de aproximadamente 200 micras o menos; la espuma puede incluir uno o más aditivos, tal como agente(s) anticorrosión, agentes oxidantes y aglutinante(s) de reducción de polvo; la(s) espuma(s) puede(n) aplicarse en una sola etapa o en múltiples etapas y puede(n) aplicarse a comprimidos de DRI calientes o fríos; se describen y reclaman otros aspectos.
MX2015011224A 2013-02-28 2014-02-25 Tratamientos de comprimidos de reduccion directa de hierro (dri). MX370626B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361770377P 2013-02-28 2013-02-28
PCT/US2014/018266 WO2014134022A1 (en) 2013-02-28 2014-02-25 Direct reduction of iron (dri) pellet treatments

Publications (2)

Publication Number Publication Date
MX2015011224A MX2015011224A (es) 2015-11-09
MX370626B true MX370626B (es) 2019-12-18

Family

ID=50238510

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2015011224A MX370626B (es) 2013-02-28 2014-02-25 Tratamientos de comprimidos de reduccion directa de hierro (dri).

Country Status (4)

Country Link
US (1) US9200339B2 (es)
CA (1) CA2903142C (es)
MX (1) MX370626B (es)
WO (1) WO2014134022A1 (es)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2026328A1 (en) * 1970-05-29 1971-12-09 Wenzel, Dr.-Ing. Werner, 5100 Aachen Foam protection of iron sponge - against re-oxidation - during transport and storage
DE2309625A1 (de) * 1973-02-27 1974-08-29 Werner Wenzel Verfahren und vorrichtung fuer den schutz witterungsempfindlicher massen
US4076520A (en) 1975-06-05 1978-02-28 Midrex Corporation Method for continuous passivation of sponge iron material
US4388116A (en) * 1981-08-04 1983-06-14 Hylsa, S.A. Passivation of sponge iron
GB2129708B (en) * 1982-11-05 1986-01-22 Mini Ind Minerals Method of inhibiting degeneration of direct reduced iron
US7947327B2 (en) * 2007-01-19 2011-05-24 General Electric Company Method for increasing metal production in smelter operations
US20120220502A1 (en) * 2011-02-24 2012-08-30 Basf Se Compositions comprising alkylalkoxysulfonates for the production of high temperature stable foams

Also Published As

Publication number Publication date
WO2014134022A1 (en) 2014-09-04
MX2015011224A (es) 2015-11-09
US9200339B2 (en) 2015-12-01
CA2903142A1 (en) 2014-09-04
CA2903142C (en) 2021-02-02
US20140238194A1 (en) 2014-08-28

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