University of Minnesota

Nu-iron Technology, Llc.

Donald Fosnacht

Rodney L Bleifuss

Iwao Iwasaki

David J Englund

Bradford G True

Mark M Brandon

Oksana Kolomitsyna

Timothy Hagen

Matthew Young

Eric Singsaas

Richard F Kiesel

David W Hendrickson

Lawrence M Zanko

Tamara R Diedrich

Rodney Bleifuss

Embodiments of the present disclosure describe binder materials from birch bark, methods of making the binder materials, fuel compositions comprising the binder materials, methods of forming the fuel compositions in the form of pellets and/or briquettes, and the like.

Fuel compositions based on binders from birch bark

Embodiments of the present disclosure describe water-resistant and durably high energy-density binder materials from cutin-containing materials, methods of making the binder materials, fuel compositions comprising the binder materials, methods of forming the fuel compositions in the form of pellets and/or briquettes, and the like.

Fuel compositions based on binders from cutin-containing materials

A hearth furnace for producing metallic iron material has a furnace housing having a drying/preheat zone, a conversion zone, a fusion zone, and optionally a cooling zone, the conversion zone is between the drying/preheat zone and the fusion zone. A moving hearth is positioned within the furnace housing. A hood or separation barrier within at least a portion of the conversion zone, fusion zone or both separates the fusion zone into an upper region and a lower region with the lower region adjacent the hearth and the upper region adjacent the lower region and spaced from the hearth. An injector introduces a gaseous reductant into the lower region adjacent the hearth. A combustion region may be formed above the hood or separation barrier.

System and method for producing metallic iron

A hearth furnacefor producing metallic iron material has a furnace housingwith a drying/preheat zonecapable of providing a drying/preheat atmosphere for reducible material, a conversion zonecapable of providing a reducing atmosphere for reducible material, a fusion zonecapable of providing an atmosphere to at least partially reduced metallic iron material, and optionally a cooling zonecapable of providing a cooling atmosphere for reduced material containing metallic iron material. A hearthis movable within the furnace housingin a direction through the drying/preheat zone, then the conversion zone, then the fusion zone, and then the cooling zone. A separation barrieris positioned within at least a portion of the conversion zone, the separation barrierseparating the conversion zoneinto a combustion regionand a reducing regionwith the reducing regionadjacent the hearthand the combustion regionadjacent the reducing regionand spaced from the hearth

System and method of producing metallic iron

A hearth furnacefor producing metallic iron material has a furnace housinghaving a drying/preheat zone, a conversion zone, a fusion zone, and optionally a cooling zone, the conversion zoneis between the drying/preheat zoneand the fusion zone. A moving hearthis positioned within the furnace housing. A hood or separation barrierwithin at least a portion of the conversion zone, fusion zoneor both separates the fusion zoneinto an upper region and a lower region with the lower region adjacent the hearthand the upper region adjacent the lower region and spaced from the hearth. An injector introduces a gaseous reductant into the lower region adjacent the hearth. A combustion region may be formed above the hood or separation barrier.

A road and repair system and/or method using one or more components including a plurality of magnetite concentrate particles, at least one acidic activator including phosphate anions, and a plurality of reactive aggregate particles including iron.

Growing community of inventors

Hermantown, MN, United States of America

Donald Fosnacht