Solubilities of molybdenum in liquid tin
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The authors wish to express their appreciation for the financial support of the Wang Zhaofan Commemoration. The authors also appreciate Professors Z.T. Sui and Z.Q. Hang, Northeastern University, for their assistance in this article.
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REFERENCES 1. F.D. Richardson: Physical Chemistry of Melts in Metallurgy, Academic Press, New York, NY, 1974, pp. 137-38. 2. B.K.D.P. Rao and D.R. Gaskell: Metall. Trans. B, 1981, vol. 12B, pp. 469-77. 3. S.S. Cole and N.W. Taylor: J. Am. Ceram. Soc., 1935, vol. 18, pp. 82-85. 4. R. Speiser, S. Naiditch, and H.L. Johnston: J. Am. Chem. Soc., 1950, vol. 72, pp. 2578-80. 5. J.R. Soulen, P. Sthapitanonda, and J.L. Margrave: J. Phys. Chem., 1955, vol. 59, pp. 132-36. 6. M.D. Scheer: J. Phys. Chem., 1957, vol. 61, pp. 1184-88. 7. M.G. lnghram, R.F. Porter, and W.A. Chupka: J. Chem. Phys., 1956, vol. 25, pp. 498-501.
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Fig. 1 - Solubilities of molybdenum in liquid tin as the function of reciprocal temperature in comparison with the literature data. tjl
Solubilities of Molybdenum in Liquid Tin RYO KAWABATA, MUNETAKA MYOCHIN, and MASANORI IWASE During the course of studies directed toward the better understanding of the high-temperature metallurgical processes for the recovery of valuable metals, e.g., palladium, rhodium, ruthenium, and molybdenum, from spent nuclear fuel generated at nuclear reactors, it became necessary to know the solubilities of molybdenum in liquid tin at temperatures between 1473 and 1723 K. To the best of the authors' knowledge, such data are from Allen lq only, as cited in Figure 1, where molybdenum solubilities are expressed by weight pct [pct Mo]. As can be seen in this figure, however, at the temperatures of the authors' interest, i.e., 1473 to 1723 K, Allen's values for [pct Mo] are relatively insensitive to temperature and might not be accurate. In the present study, a conventional sampling technique was applied for the determinations of the molybdenum solubilities in liquid tin: RYO KAWABATA, Graduate Student, and MASANORI IWASE, Associate Professor, are with the Department of Energy Science and Engineering, Kyoto University, Kyoto 606, Japan. MUNETAKA MYOCHIN, Research Associate, is with the Nuclear Fuel Technology Development Division, Power Reactor and Nuclear Fuel Development Corporation, Muramatsu, Tokai, Ibaraki 319-11, Japan. Manuscript submitted October 24, 1994. 654--VOLUME 26B, JUNE 1995
attention was focused on temperatures between 1473 and 1723 K. A high-purity alumina crucible of 35-mm i.d., 41-mm o.d., and 155-mm length was charged with 170 g of highpurity tin and heated in a stream of purified argon inside a SiC resistance furnace, which was equipped with a mullite reaction tube of 50-mm i.d., 60-mm o.d., and 1000-mm length. A number of molybdenum rods of 2-mm diameter and 200- to 700-mm length were immersed in the liquid tin and vibrated in a lateral mode. In addition, a g
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