Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1991-12-30
1993-12-07
Breneman, R. Bruce
Liquid purification or separation
Processes
Ion exchange or selective sorption
210681, 423712, 423714, C02F 142
Patent
active
052681076
ABSTRACT:
An ion exchange material for the removal of radioisotope cations such as the cations of caesium and strontium from an aqueous environment containing the radioisotope cation comprises a modified clinoptilolite produced by treating a natural clinoptilolite with sodium hydroxide at a concentration of approximately 2M or with hydrochloric acid at a concentration of from 0.1 to 5M for a suitable treatment time and at a suitable treatment temperature. The modified clinoptilolite is especially effective in the removal of radioisotope cations from an aqueous environment.
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Copperthwaite Richard G.
Hutchings Graham J.
Themistocleous Themistoclis
Breneman R. Bruce
Zeofuels Research (Proprietary) Limited
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