Potential Applications of ABS and ABEC

The use of ABS and ABEC is in its infancy, but the potential for clean separations (without using volatile organic compounds) promises to stimulate research in this field. Applications in nuclear medicine, nuclear waste, analytical processes, and hydrometallurgy are already receiving attention. A few of the potential applications are described below, but there will surely be more as additional investigators join the field. 

The liquid/liquid partitioning behavior ofTcOi was investigated as a function of salt used to generate the biphase, salt concentration, PEG molecular weight, pH, and temperature. With the knowledge that MoO.i salts out PEG and that TcOf quantitatively partitions to the PEG-rich phase, a TcOf /MoO separation was designed [43]. 

Pertechnetate can be separated from molybdate with separation factors as high as 10,000 (Fig. 24 [43])- The two most important salt solutions are OH and MoO . As shown, high concentrations of MoO (as would be needed to produce enough - Tc activity from low-specific-activity, cyclotron-produced ) are not deleterious but actually enhance the 

The selectivity of ABEC-5000 for pertechnetate over molybdate and its good retention from alkaline solution (which is typically used for molybdenum target dissolution) are unique advantages. Stripping can be achieved with water or physiological saline and affords nearly all of the TcO/T in 

Removal of TCO4 from Hanford Tank Wastes 

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