Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Reexamination Certificate
2007-01-30
2011-11-01
Menon, Krishnan S (Department: 1777)
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
C210S639000, C210S651000, C210S652000, C562S433000, C562S607000, C423S002000, C423S042000, C423S049000, C588S001000, C588S002000, C588S006000
Reexamination Certificate
active
08048308
ABSTRACT:
The invention relates to a process for separating, in an aqueous medium, at least one actinide element from one or more lanthanide elements by using at least one molecule which sequesters the said actinide element to be separated and membrane filtration, the said process successively comprising:a) a step of bringing at least one molecule which sequesters the said actinide element in contact with the aqueous medium, the said molecule not being retained in the non-complexed state by the said membrane and being capable of forming a complex with the actinide element to be separated, comprising the said element and at least two of the said sequestering molecules, which complex is capable of being retained by the membrane;b) a step of passing the aqueous medium over the membrane in order to form a permeate on one side, comprising an aqueous effluent depleted of the said actinide element, and a retentate comprising the said complex.
REFERENCES:
patent: 3950424 (1976-04-01), Pearson et al.
patent: 4431546 (1984-02-01), Hughes et al.
patent: 5126272 (1992-06-01), Kingston et al.
patent: 5766478 (1998-06-01), Smith et al.
patent: 5868935 (1999-02-01), Sirkar et al.
patent: 5925254 (1999-07-01), Lemaire et al.
patent: 6113796 (2000-09-01), Tounissou et al.
patent: 6843917 (2005-01-01), Guy et al.
patent: 2714620 (1995-07-01), None
patent: WO 00/73521 (2000-12-01), None
International Search Report completed May 10, 2007 in International Patent Application No. PCT/EP2007/050893, filed Jan. 30, 2007.
French Search Report dated Sep. 8, 2006, prepared in corresponding French Patent Application No. FR 0650325, filed Jan. 30, 2006.
Adnet Jean-Marc
Bernier Gilles
Favre-Reguillon Alain
Foos Jacques
Le Buzit Gerard
Bass Dirk
Brinks Hofer Gilson & Lione
Commissariat a l''Energie Atomique
Menon Krishnan S
LandOfFree
Process for separating at least one actinide element from... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for separating at least one actinide element from..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for separating at least one actinide element from... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4288057