Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iib metal
Reexamination Certificate
2011-08-16
2011-08-16
Bos, Steven (Department: 1736)
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group iib metal
C423S101000, C210S679000, C210S688000, C205S560000, C205S589000
Reexamination Certificate
active
07998441
ABSTRACT:
A method for selective removal of cadmium from a feed solution also containing other metals such as nickel (Ni) and/or cobalt (Co), utilizing a thiourea based ion exchange resin, and a method for eluting cadmium adsorbed on the thiourea based resin.
REFERENCES:
patent: 6428604 (2002-08-01), Kerfoot et al.
patent: 55-0544084 (1980-04-01), None
patent: 56-049785 (1981-05-01), None
Translation of Kobayashi et al. “Elimination of cadmium . . . ” Mizu Shori Gijutsu, 19(8), pp. 727-733,1978.
Atia et al. “Synthesis of amine and thio chelating resins and study of their interaction with zinc(II), cadmium(II) and mercury(II) ion in their aqueous solutions”, Reactive & Functional Polymers, 56(1), pp. 75-82, 2003.
Saha et al, “Sorption of trace heavy metals by thiol containing chelating resins”, Solvent Extraction and Ion Exchange, 18(1), pp. 133-167, 2000.
Zuo et al. “Selective binding of mercury to thioreau-based coordinating resins”, Reactive & Functional Polymers, vol. 27, No. 3, pp. 187-198.
Kobayashi et al. “Elimination of cadmium ion in waste water by adsorbents”, Mizu Short Gijutsu, 19(8), pp. 727-733, 1982 (with English abstract).
Hope Douglas Albert
Mihaylov Indje Ognianov
Arent & Fox LLP
Bos Steven
CVRD Inco Limited
LandOfFree
Method for selective removal of cadmium does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for selective removal of cadmium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for selective removal of cadmium will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2786980