High Purity Ferric Oxide : Origin of Impurities and IROX-NKK Purification Process |
Maeda, T. (Technology Department, IROX-NKK Company LTD.) |
1 | Japan. Patent 1408381 |
2 | Y. Yamazaki and M. Matsue : Digests of ICF6, p. 1(1992) |
3 | Japan. Patent 1830908 |