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T. Nishimura, T. Koyama, M. Iizuka and H. Tanaka, “Development of an Environmentally Benign Reprocessing Technology—Pyrometallurgical Reprocessing Technology,” Progress in Nuclear Energy, Vol. 32, No. 3-4, 1998, pp. 381-387. doi:10.1016/S0149-1970(97)00032-2

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• TITLE: Low Temperature Chlorination of Nd2O3 by Mechanochemical Method with CCl4

  AUTHORS: Takayuki Nagai, Shin-Ichi Kitawaki, Nobuaki Sato

  KEYWORDS: Mechanochemical Method; Carbon Tetrachloride; Neodymium Oxide; Low Temperature Chlorination; Neodymium Oxychloride; XRD; RAMAN Spectroscopy

  JOURNAL NAME: Materials Sciences and Applications, Vol.4 No.7, June 28, 2013

  ABSTRACT: For a chlorinating method at low temperature, the possibility of chlorination of Nd2O3 by a mechanochemical reaction with CCl4 was studied using a planetary ball mill. The mechanochemical experiments were conducted by changing the pot materials, milling time, molar ratio of CCl4/Nd2O3, and revolution speed. As the results of obtained products by X-ray diffractometry and Raman spectroscopy, it was confirmed that the chlorination to NdOCl from Nd2O3 with CCl4 was advanced at room temperature in a zirconia or tungsten pot with balls. We found that an extension of the milling time and an increase of the number of ball were effective to the chlorination to NdOCl and that tensile stress remained in the milled powder by using a planetary ball mill.