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AssigneeThe United States of America as represented by the Secretary of Agriculture
InventorsRex E. Murray, Grigor B. Bantchev, Kenneth M. Doll, Robert O. Dunn, Kim L. Ascherl
Estimating the term…
We have now discovered a novel process for the removal or extraction of metal species from a variety of solid, liquid or gas phase materials. Metal species may be removed by contacting the material suspected of containing one or more metals with a thiolated fatty acid or ester thereof for a period of time and under conditions effective far the sequestration of the metal species by the thiolated fatty acid or ester thereof. The thiolated fatty acid or ester thereof comprising sequestered metal species may then be separated and recovered from the treated material. Moreover, following the treatment of aqueous liquids or mixtures, or suspensions or dispersions of solids in aqueous liquids, the resultant thiolated fatty acid or ester thereof comprising the sequestered metal species is insoluble in water and forms a separate layer from the aqueous liquid phase, which layer may be readily removed.
A process for the treatment of materials to remove metal species therefrom, said process comprising:
A process for the treatment of materials to remove metal species therefrom, said process comprising:
A process for the treatment of materials to remove metal species therefrom, said process comprising:
Dependencies are inferred from the claim text.