Liquid purification or separation – Processes – Ion exchange or selective sorption
Reexamination Certificate
2005-12-06
2005-12-06
Reifsnyder, David A. (Department: 1723)
Liquid purification or separation
Processes
Ion exchange or selective sorption
C210S660000, C210S681000, C210S682000, C210S695000, C252S06251C, C252S062530, C252S062560, C588S013000, C588S015000, C376S309000, C376S310000, C530S391100, C530S391700, C423S006000
Reexamination Certificate
active
06972095
ABSTRACT:
A decontamination system uses magnetic molecules having ferritin cores to selectively remove target contaminant ions from a solution. The magnetic molecules are based upon a ferritin protein structure and have a very small magnetic ferritin core and a selective ion exchange function attached to its surface. Various types of ion exchange functions can be attached to the magnetic molecules, each of which is designed to remove a specific contaminant such as radioactive ions. The ion exchange functions allow the magnetic molecules to selectively absorb the contaminant ions from a solution while being inert to other non-target ions. The magnetic properties of the magnetic molecule allow the magnetic molecules and the absorbed contaminant ions to be removed from solution by magnetic filtration.
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Bradbury David
Bushart Sean P.
Elder George Richard
Dergosits & Noah LLP
Electric Power Research Institute
Reifsnyder David A.
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