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本文研制了一种碘的无机吸附剂——附银丝光沸石(AgX),并研究了该吸附剂对放射性碘的吸附特性以及各种影响因素。结果表明,所研制的附银丝光沸石对气态的元素碘和甲基碘均具有良好的吸附性能,附银量为15.2％的丝光沸石对元素碘的饱和吸附容量可达196.6mg(Ⅰ)/g(AgX)。当气体中含有较多的水蒸汽和氮氧化物时对该吸附剂的吸碘性能没有明显的影响。该吸附剂对I_2和CH_3I的去污系数均可达10~3～10~4。
In this paper, a kind of inorganic iodine adsorbent-silver mordenite (AgX) was developed. The adsorption properties of radioactive iodine and its influencing factors were also studied. The results showed that the adsorbed silver mordenite has good adsorption performance on gaseous iodine and methyl iodide. The sorption capacity of mordenite with the amount of 15.2% of silver on elemental iodine is up to 196.6 mg / g (AgX). When the gas contains more water vapor and nitrogen oxides, there is no obvious influence on the iodine absorption performance of the adsorbent. The decontamination coefficient of the adsorbent for I_2 and CH_3I up to 10 ~ 3 ~ 10 ~ 4.