REMOVAL OF RADIOACTIVE COBALT ION IN HIGH-TEMPERATURE WATER USING TITANIUM-OXIDE

被引:29
作者
KIKUCHI, M [1 ]
GA, E [1 ]
FUNABASHI, K [1 ]
YUSA, H [1 ]
UCHIDA, S [1 ]
FUJITA, K [1 ]
机构
[1] HITACHI LTD,HITACHI RES LAB,HITACHI,JAPAN
关键词
D O I
10.1016/0029-5493(79)90065-7
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
The adsorption of Co2+ on titanium oxide (TiO2) has been experimentally evaluated as a function of temperatures in the range 20-280°C. The selectivity experiments showed that corrosion products such as Co2+, Ni2+ and Mn2+ in reactor water are preferentially adsorbed at high temperatures. The data suggest that there are two reaction mechanisms, i.e. an ion exchange reaction at low temperatures, and chemical adsorption with the formation of insoluble cobalt meta-titanate (CoTiO3) on the TiO2 surface at high temperatures. © 1979.
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页码:387 / 392
页数:6
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