Preparation of granular titanate ion exchangers

Details Preparation of granular titanate ion exchangers Preparation of granular titanate ion exchangers

1996-12-11

2000-08-22

Bos, Steven

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423 71, C01G 2300

Patent

active

061067997

ABSTRACT:
A titanate ion exchanger and method of producing same. Solid hydrous titanium oxide in a slurry is reacted with an alkaline agent, such as NaOH, containing an exchangeable cation. A solids fraction containing the titanate product is settled and separated and a granular titanate ion exchanger product recovered from the solids fraction. The ion exchanger is suitable for the separation of radionuclides, such as those containing radioactive strontium, from nuclear waste solutions.

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Heinonen, O.J., Lehto, J., and Miettinen, J.K., Sorption of Strontium (II) and Radio Strontium Ions on Sodium Titanate, Radiochimica Acta 28 (1981) pp. 93-96, no month.
Clearfield, A., and Lehto, J., Preparation, Structure and Ion-Exchange Properties of Na.sub.2 TI.sub.9 O.sub.20 .cndot.xH.sub.2 O, Journal of Solid State Chemistry 73, (1988) pp. 98-106, no month.
Lehto, et al., "The Equilibrium of Strontium Ion Exchange on Sodium Titanate . . . " J. Chem. Soc. Dalton Trans. Jan. 1989, pp. 101-103.

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