摘要
本文试验研究了在碘吸附器净化系数测定中采用非剧毒试剂替代目前广泛使用的剧毒品硫酸二甲酯制备气态放射性甲基碘的可行性。试验结果表明:本文所选择的三甲基氯硅烷/碘化钠(或碘化钾)作为碘化剂与磷酰基乙酸三甲酯反应制备气态甲基碘是较好的一种替代方法,其反应条件和甲基碘产率均达到碘吸附器整机检验和核电站现场试验的要求;替代试剂对碘吸附器中的核级浸渍活性炭几乎无影响。初步判断该替代方法可代替传统的硫酸二甲酯法制备气态放射性甲基碘。
The experiments were carried out to study the feasibility of suhstitutiug the extremely toxic dimethyl sulfate （DMS） with nontoxic reagents in preparing the gaseous methyl iodide to measure the scrubbing efficiency of iodine adsorber. The test results show that the reaction of chlorotrimelthylsilane/sodium iodide （or potassium iodide） as a iodating agent and phosphate methylesters is a good substitution method, the reaction conditions and productivity of methyl iodide can meet the requirements of both workshop and in-place tests of iodine adsorber, and the substitutes b.ave little influence on the nuclear grade immersed activated carbon filled in the iodine adsorber. The substitution method can substitute the DMS method to prepare gaseous methyl iodide.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2013年第4期529-535,共7页
Atomic Energy Science and Technology
