Low iron silica sand product and method of making same

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11932569
SERIAL NO

18156857

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Abstract

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A method for producing a low iron silica sand product suitable for glass production has an SiO2 content of at least 99.8% by weight, an Fe2O3 content of less than 0.008% by weight, an Al2O3 content of less than 0.1% by weight, and a CaO content of less than 0.05% by weight includes preparing a slurry of crude ore, wherein the crude ore has a sand content of about 75% to 80% by weight, a kaolin/mica content of about 15% to 25% by weight, a dark, heavy mineral content of about 1% by weight, and an Fe2O3 content of about 0.5% to 1.0% by weight. Particles having a size of less than about one hundred forty mesh are removed, and contaminant material is removed. The sand is then separated from the slurry, dried, and passed through a rare earth magnetic separator.

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Patent Owner(s)

Patent OwnerAddress
WELLS III JAMES MMACON GA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wells,, III James M Macon, US 2 7

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