Multivalent metal ion extraction using diglycolamide-coated particles
AssigneePG Research Foundation
InventorsE. Philip Horwitz, Richard E. Barrans, Jr., Andrew H. Bond
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Abstract
A separation medium, a method for using that separation medium and an apparatus for selectively extracting multivalent cations such as pseudo-lanthanide, prelanthanide, lanthanide, preactinide or actinide cations from an aqueous acidic sample solution is described. The separation medium is preferably free-flowing and comprises particles having a diglycolamide (DGA) extractant dispersed onto an inert, porous support.
Claims12
A separation medium comprising a diglycolamide extractant corresponding in structure to Formula I dispersed onto a porous inert resin or silica support,
- wherein R1, R2, R3 and R4 are the same or different and are hydrido or hydrocarbyl groups such that R1+R2+R3+R4 contains about 14 to about 56 carbon atoms.
A separation medium comprising a diglycolamide extractant corresponding in structure to Formula I dispersed onto a porous inert resin support, said diglycolamide comprising about 3 to about 50 weight percent of the total dry weight of the separation medium,
- wherein R1, R2, R3 and R4 are the same or different and are hydrido or hydrocarbyl groups such that R1+R2+R3+R4 contains about 16 to about 40 carbon atoms.
A separation medium comprising a diglycolamide extractant corresponding in structure to Formula I dispersed onto a porous inert resin support, said diglycolamide comprising about 3 to about 50 weight percent of the total dry weight of the separation medium, said separation medium being present as free flowing particles,
- wherein R1, R2, R3 and R4 are the same or different hydrocarbyl groups such that R1+R2+R3+R4 contains about 16 to about 40 carbon atoms.
Dependencies are inferred from the claim text.