Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Reexamination Certificate
2008-01-15
2008-01-15
Fortuna, Ana (Department: 1723)
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
C210S651000, C210S634000, C210S638000, C210S639000, C423S001000, C423S002000, C423S003000, C423S021100, C423SDIG018
Reexamination Certificate
active
07318899
ABSTRACT:
A process in which isotopes of the same element belonging to the alkaline earth metals, transition elements and heavy metals having an atomic mass of less than 209, in particular lanthanide metals, are separated in an aqueous medium by treating an aqueous medium.
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Whitworth T M et al: “Isotopic Fractionation and Overall Permeation of Lithium by a Thin-Film Composite Polyamide Reverse Osmosis Membrane” Journal of Membrane Science, Elsevier Scientific Publ. Company. Amsterdam, NL vol. 88 No. 2/3, Mar. 16, 1994, pp. 231-241. XP000488346 ISSN: 0376-7388.
Chitry Frédéric
Foos Jacques
Guy Alain
Lemaire Marc
Pellet-Rostaing Stéphane
Fortuna Ana
Framatome ANP
Kenyon & Kenyon LLP
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