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Use of magnetic carbon composites from renewable resource materials for oil spill clean up and recovery

United States Patent

9,169,139
October 27, 2015
View the Complete Patent at the US Patent & Trademark Office
A method of separating a liquid hydrocarbon material from a body of water, includes: (a) mixing magnetic carbon-metal nanocomposites with a liquid hydrocarbon material dispersed in a body of water to allow the magnetic carbon-metal nanocomposites each to be adhered by the liquid hydrocarbon material to form a mixture; (b) applying a magnetic force to the mixture to attract the magnetic carbon-metal nanocomposites each adhered by the liquid hydrocarbon material; and (c) removing the body of water from the magnetic carbon-metal nanocomposites each adhered by the liquid hydrocarbon material while maintaining the applied magnetic force. The magnetic carbon-metal nanocomposites is formed by subjecting one or more metal lignosulfonates or metal salts to microwave radiation, in presence of lignin/derivatives either in presence of alkali or a microwave absorbing material, for a period of time effective to allow the carbon-metal nanocomposites to be formed.
Viswanathan; Tito (Little Rock, AR)
BOARD OF TRUSTEES OF THE UNIVERSITY OF ARKANSAS (Little Rock, AR)
14/ 134,992
20140102988
December 19, 2013
STATEMENT OF FEDERALLY-SPONSORED RESEARCH The present invention was made with Government support under Grant No. DEFC 36-06G086072 awarded by U.S. Department of Energy (DOE). The government has certain rights in the invention.