Use of bimodal carbon distribution in compacts for producing metallic iron nodules

Iwasaki, Iwao

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Title: Use of bimodal carbon distribution in compacts for producing metallic iron nodules

Abstract

A method for use in production of metallic iron nodules comprising providing a reducible mixture into a hearth furnace for the production of metallic iron nodules, where the reducible mixture comprises a quantity of reducible iron bearing material, a quantity of first carbonaceous reducing material of a size less than about 28 mesh of an amount between about 65 percent and about 95 percent of a stoichiometric amount necessary for complete iron reduction of the reducible iron bearing material, and a quantity of second carbonaceous reducing material with an average particle size greater than average particle size of the first carbonaceous reducing material and a size between about 3 mesh and about 48 mesh of an amount between about 20 percent and about 60 percent of a stoichiometric amount of necessary for complete iron reduction of the reducible iron bearing material.

Inventors:: Iwasaki, Iwao

Issue Date:: 2014-04-08

Research Org.:: Nu-Iron Technology, LLC, Charlotte, NC (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1129178

Patent Number(s):: 8690988

Application Number:: 13/653,186

Assignee:: Nu-Iron Technology, LLC (Charlotte, NC)

Patent Classifications (CPCs):: C - CHEMISTRY C21 - METALLURGY OF IRON C21B - MANUFACTURE OF IRON OR STEEL

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

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C - CHEMISTRY C21 - METALLURGY OF IRON C21B - MANUFACTURE OF IRON OR STEEL
C21B11/08 - in hearth-type furnaces
C21B13/004 - {in a continuous way by reduction from ores}
C21B13/0066 - {Preliminary conditioning of the solid carbonaceous reductant}
C21B13/10 - in hearth-type furnaces

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P10/20 - Process efficiency

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DOE Contract Number:: FG36-05GO15185

Resource Type:: Patent

Resource Relation:: Patent File Date: 2012 Oct 16

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

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                    Iwasaki, Iwao. Use of bimodal carbon distribution in compacts for producing metallic iron nodules.  United States: N. p., 2014. 
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                    Iwasaki, Iwao. Use of bimodal carbon distribution in compacts for producing metallic iron nodules.  United States.

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                    Iwasaki, Iwao. Tue .  
        "Use of bimodal carbon distribution in compacts for producing metallic iron nodules".  United States.  https://www.osti.gov/servlets/purl/1129178.

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@article{osti_1129178,

  title        = {Use of bimodal carbon distribution in compacts for producing metallic iron nodules},

  author       = {Iwasaki, Iwao},

  abstractNote = {A method for use in production of metallic iron nodules comprising providing a reducible mixture into a hearth furnace for the production of metallic iron nodules, where the reducible mixture comprises a quantity of reducible iron bearing material, a quantity of first carbonaceous reducing material of a size less than about 28 mesh of an amount between about 65 percent and about 95 percent of a stoichiometric amount necessary for complete iron reduction of the reducible iron bearing material, and a quantity of second carbonaceous reducing material with an average particle size greater than average particle size of the first carbonaceous reducing material and a size between about 3 mesh and about 48 mesh of an amount between about 20 percent and about 60 percent of a stoichiometric amount of necessary for complete iron reduction of the reducible iron bearing material.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2014},

  month        = {4}

}

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