海水ウラン採取用吸着剤の強度試験

抄録

An abrasion study of granular adsorbent was made in order to establish the standard method for estimating the strength of the adsorbent during the recovery process of uranium from sea water by using a fluidized bed. The hydrophilic poly (acrylamidoxime) resin and the titaniumactivated carbon composite adsorbents granulated by polyvinyl alcohol or poly acrylicacid hydrazide were used as the sample adsorbents. The abrasion losses of the adsorbents by magnetic stirring, horizontal shaking, and vertical shaking were compared with those yielded in the fluidized bed for 10days.
For both the vertical and horizontal shakings, the abrasion losses of three kinds of adsorbents by shaknngs for 5minutes were proportional to those by the fluidization. The linear relationship was not found in the case of magnetic stirring, and the granulated adsorbents showedremarkably high abrasion rates as compared with the resin.
From these results, it was concluded that shaking method was suitable for the estimation of the abrasion loss of adsorbent in the fluidized bed.