Invention Grant
- Patent Title: Purification of coal and fly ash by ionic liquids
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Application No.: US15013016Application Date: 2016-02-02
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Publication No.: US09637832B2Publication Date: 2017-05-02
- Inventor: Thomas E. Sutto
- Applicant: The United States of America, as represented by the Secretary of the Navy
- Applicant Address: US DC Washington
- Assignee: The United States of America, as represented by the Secretary of the Navy
- Current Assignee: The United States of America, as represented by the Secretary of the Navy
- Current Assignee Address: US DC Washington
- Agency: US Naval Research Laboratory
- Agent Rebecca L. Forman
- Main IPC: C25C1/22
- IPC: C25C1/22 ; C22B59/00 ; C22B60/02 ; C22B7/02 ; C21B15/00 ; C25C7/02 ; C25C7/08 ; C25C1/20 ; C22B1/00 ; C22B60/00
Abstract:
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.
Public/Granted literature
- US20160222532A1 PURIFICATION OF COAL AND FLY ASH BY IONIC LIQUIDS Public/Granted day:2016-08-04
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