Ore beneficiation

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United States of America Patent

PATENT NO 8545594
APP PUB NO 20130032003A1
SERIAL NO

13195430

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Abstract

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A method of enriching the iron content of low grade iron ore bearing materials has been developed which produces a high iron ore concentrate suitable for processing into pig iron and steel. The process includes reducing the low grade iron ore bearing materials to a fine particulate form and treating a water slurry of this material by applying a combination of ultrasonic treatments in a plurality of high and low intensity magnetic separation operations to remove interfering materials and concentrate magnetic and paramagnetic iron bearing materials into a high grade ore stock.

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Patent Owner(s)

Patent OwnerAddress
SUPERIOR MINERAL RESOURCES LLC1910 - 8TH AVENUE EAST HIBBING MN 55746

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hecimovich, James A Mountain Iron, US 3 9
Hilshorst, Howard W Britt, US 3 9
Lindahl, Gregory D Hibbing, US 3 9

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