Behaviour of α-Radiolysis of 30%TBP-Kerosene-HNO₃ Extraction System Ⅱ. Formation of Carbonyl Compounds of Solvent Radiolysis

The property of carbonyl compounds in the extraction system of 30%TBP-kerosene-HNO₃ that irradiated using ²³⁸Pu 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 10⁵ 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 10⁵ Gy, the concentration of carbonyl compounds in system by α irradiation increases more rapid than by γ irradiation.