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Nihon Kagaku Zasshi, 90(10), p.1025 - 1027, 1969/00
no abstracts in English
Sue, Kasumi*; Hirasawa, Izumi*; Miyazaki, Yasunori; Takeuchi, Masayuki
no journal, ,
In the dissolving process of spent nuclear fuel, poor water soluble substances precipitate and accumulate, which lead to lower heat transfer efficiency and pipe blockage. The major substance is known as zirconium molybdate dihydrate (ZMH). ZMH has characteristic properties; for example, water solubility decreases and adhesibility increases as the reaction temperature raises. This study revealed that encrustation of the metal wall vessel was prevented by adding ZMH crystal when compared to the case without ZMH addition. As the ZMH crystal was added, the reaction between Zr and Mo was accelerated that inhibits nucleation in the reaction solution.
Otani, Kyohei; Ueno, Fumiyoshi; Kato, Chiaki
no journal, ,
In order to develop a novel corrosion inhibitor that is suitable for the 1F environment, it was focused on aluminum lactate, which had not been focused on as a corrosion inhibitor. It was found that aluminum lactate had a synergistic effect and high corrosion inhibition ability when mixed with sodium molybdate. As a result of surface XPS analysis, it was found that the corrosion of carbon steel was inhibited by the formation of aluminum and molybdenum oxide films on the carbon steel surface.
