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

Patent · Tue Apr 08 04:00:00 EDT 2014

OSTI ID:1129178

Iwasaki, Iwao

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.

• Research Organization: Nu-Iron Technology, LLC, Charlotte, NC (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: FG36-05GO15185
• Assignee: Nu-Iron Technology, LLC (Charlotte, NC)
• Patent Number(s): 8,690,988
• Application Number: 13/653,186
• OSTI ID: 1129178
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE