<p>A method of production of metallic iron nodules comprises assembling a hearth furnace having a moveable hearth comprising refractory material and having a conversion zone and a fusion zone, providing a hearth material layer comprising carbonaceous material on the refractory material, providing a layer of reducible material comprising and iron bearing material arranged in discrete portions over at least a portion of the hearth material layer; delivering oxygen gas into the hearth furnace to a ratio of at least 0.8:1 pounds of oxygen to pounds of iron in the reducible material to heat the conversion zone to a temperature sufficient to at least partially reduce the reducible material and to heat the fusion zone to a temperature sufficient to at least partially reduce the reducible matepal, and heating the reducible material to form one or more metallic iron nodules and slag.</p>
申请公布号
WO2011041431(A1)
申请公布日期
2011.04.07
申请号
WO2010US50743
申请日期
2010.09.29
申请人
NU-IRON TECHNOLOGY, LLC;ENGLUND, DAVID J.;SCHLICHTING, MARK;MEEHAN, JOHN;CROUCH, JEREMIAH;WILSON, LOGAN
发明人
ENGLUND, DAVID J.;SCHLICHTING, MARK;MEEHAN, JOHN;CROUCH, JEREMIAH;WILSON, LOGAN