30%TBP-煤油-HNO_3体系的α辐解行为 Ⅱ.溶剂辐解生成羰基化合物的规律  

Behaviour of α-Radiolysis of 30% TBP-Kerosene-HNO_3 Extraction System Ⅱ.Formation of Carbonyl Compounds of Solvent Radiolysis

作　　者：苏哲[1] 李辉波[1] 丛海峰[1] 宋凤丽[2] 袁洁琼[1] 刘占元[1] 王孝荣[1] 何辉[1] 

机构地区：[1]中国原子能科学研究院放射化学研究所,北京102413 [2]环境保护部核与辐射安全中心,北京100082

出　　处：《核化学与放射化学》2013年第5期270-274,共5页Journal of Nuclear and Radiochemistry

摘　　要：以分光光度法研究了238Pu为α源的30%TBP-煤油-HNO3体系辐解产物羰基化合物的生成规律,考察了还原反萃、酸碱洗涤、钚浓度等工艺条件对羰基化合物分析的影响。研究表明:羰基化合物生成量随着α辐照剂量率以及吸收剂量的增加而增大,在剂量率73.7Gy/min、吸收剂量5×105 Gy时,羰基化合物浓度达到0.039mol/L;吸收剂量在105 Gy以上时,α辐照产生的羰基化合物生产量明显高于γ辐照;不同稀释剂对羰基化合物生成量影响不明显。The property of carbonyl compounds in the extraction system of 30%TBP-kerosene-HNO3 that irradiated using 238 Pu α-sources were determined by spectrophotometry.And effects of different back-extractant,wash process and plutonium concentration were investigated.Results show that the concentration of carbonyl compounds increases with absorbed dose and dose rate,when absorbed dose is 5 × 105 Gy and dose rate is 73.7 Gy/min,the concentration of carbonyl compounds obtains to 0.039 mol/L.When the radiation dose is less than 10^5 Gy,the concentration of carbonyl compounds in irradiated system by α irradiation is close to by γ irradiation.But when the radiation dose is more than 10^5 Gy,the concentration of carbonyl compounds in system by α irradiation increases more rapid than by γ irradiation.

关 键 词：α辐解 238Pu 羰基化合物 分光光度法 

分 类 号：TL271.4[核科学技术—核燃料循环与材料]