Study on the synthesis process of depleted zinc acetate-64
Depleted zinc acetate(with the abundance of 64Zn＜1％)can effectively mitigate corrosion of equipment and reduce ambient radiation as an additive in reactor cooling water circuit.In this study,depleted anhydrous zinc acetate was synthesized in one step from depleted diethyl zinc-64 through the process of alcoholization and acidification,and high purity depleted zinc-64 acetate was obtained by hydrocrystallization.The factors of the reaction system such as the type and amount of organic alcohols,synthesis reaction conditions and the crystallization liquor density were systematically investigated,and the synthesis technology with high yield for depleted zinc acetate was obtained.The product was fully characterized by X-ray diffraction,infrared spectroscopy,scanning electron microscopy and thermal gravimetric analyzer through analytical techniques.The highest yield of 96.7％and the highest purity of 99.96％can be achieved by selecting isopropyl alcohol as the intermediate,and depleted zinc acetate is obtained through hydrocrystallization.These research consequences are applied to the mass production of depleted zinc-64 products,and this technology is also applicable to the preparation of inorganic salt isotope products using metal organic salt raw materials.
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