Production of iron using environmentally-benign renewable or recycled reducing agents

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7632330
APP PUB NO 20070209480A1
SERIAL NO

11716352

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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To produce metallic iron from iron ore, a composition comprising a mass of material formed from a mixture of iron ore particles and particles of a reductant that is either a biomass material in particulate form or a plastic resinous material in particulate form is used. The reductant can also be a mixture of biomass material and resin in any proportions. The mass of material comprises at least one body having a shape adapted for smelting such as pellets, briquettes, pieces or lumps. The pellets have sufficient cohesion to maintain the shape into which they have been formed. The invention also provides a new method for smelting iron from its ore which comprises subdividing the ore into particles of a selected size, mixing the subdivided ore particles with particles of a biomass material or particles of a plastic resinous material or with mixtures thereof, forming a mass of the mixture into at least one body with a shape that is suited for smelting in a furnace and placing the body in a furnace and exposing it to sufficient heat to bring the iron therein to smelting temperature within the furnace to thereby produce metallic iron directly from the ore.

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Patent Owner(s)

Patent OwnerAddress
MICHIGAN TECHNOLOGICAL UNIVERSITY1400 TOWNSEND DRIVE HOUGHTON MI 49931

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eisele, Timothy C Atlantic Mine , US 8 156
Kawatra, Surendra Komar Houghton , US 4 128

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