Purification of coal and fly ash by ionic liquids

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United States of America Patent

PATENT NO 9637832
SERIAL NO

15013016

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Abstract

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A method for recovering heavy metals and rare earth elements from fly ash, coal ash, and unrefined mineral ores containing rare earth metals using an ionic liquid and an organic acid to solubilize the metals. The solubilized components are removed from the ionic liquid by electrochemical deposition. The heavy metals and rare earth elements are deposited onto an electrode, and then purified via electrochemical processing.

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Patent Owner(s)

Patent OwnerAddress
THE GOVERNMENT OF THE UNITED STATES AS REPRESENTED BY THE SECRETARY OF THE NAVY875 N RANDOLPH ST SUITE 1425 ARLINGTON VA 22203

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sutto, Thomas E Woodbridge, US 7 10

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