Extraction of iron (III) oxide from different iron-containing ores

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United States of America Patent

PATENT NO 11795521
APP PUB NO 20200157653A1
SERIAL NO

16615205

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Abstract

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A method of extraction of pure iron (III) oxide from bulk iron ore is provided that includes crushing and grinding, using a crushing machine, raw hematite ore, where a milled ore is formed, water-washing the milled ore by rinsing under continuous stirring conditions, dilute acid-washing the milled ore with diluted hydrochloric acid under continuous stirring conditions, immersing the dilute acid-washed milled ore in concentrated acid under the continuous stirring conditions, and applying heat, treating the heated and immersed milled ore with an alkali to form a precipitate, washing with water the precipitate to purify the precipitate, and drying the purified precipitate, and igniting the purified dry precipitate to extract a pure iron (III) oxide from a bulk iron ore.

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Patent Owner(s)

Patent OwnerAddress
THE AMERICAN UNIVERSITY IN CAIRO420 FIFTH AVENUE THIRD FLOOR NEW YORK NY 10018-2729

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Allam, Nageh K New Cairo, EG 8 0
Aly, Mahmoud M Maadi, EG 1 0

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