Biopolymer composite ion-exchanger with high cesium selectivity and its manufacturing method
AssigneeAgency of Industrial Science and Technology
InventorsYoshio Onodera, Hitoshi Mimura, Takashi Iwasaki, Hiromichi Hayashi, Takeo Ebina
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Abstract
The present invention provides an easy-to-handle biopolymer composite ion-exchanger with high cesium selectivity, and method for manufacturing this ion-exchanger with ease and good reproducibility, and relates to a cesium separation/recovery agent comprising a composite ion-exchanger with high cesium selectivity by employing a calcium alginate gel as a matrix and loading this matrix with an inorganic ion-exchanger; and to a manufacturing method therefor.
Claims4
A method for manufacturing a composite ion-exchanger with high cesium selectivity, which comprises dispersing at least one inorganic ion-exchanger powder selected from the group consisting of crystalline tetratitanic acid, insoluble ferrocyanides, ammonium molybdophosphate, silicon titanates, copper (II) potassium hexacyanoferrate (II), and ammonium tungstophosphate in a sodium alginate aqueous solution to prepare a slurry, bringing a calcium salt solution into contact with said slurry to disperse and load the inorganic ion-exchanger in a calcium alginate gel substrate.
Dependencies are inferred from the claim text.