Chemical Abstracts, vol. 73 (Nov. 16, 1979), 106-107, No. 100566q (Japanese Patent Appln. JP-A-7025762 Yo Kosh), "Recovery of Useful Materials from Red Muds in Alumina Manufacturing Process". |
Chemical Abstracts, vol. 80 (Mar. 11, 1974), 113 No. 49861x (Japanese Patent Appln. 7375497 Sumitomo Chemical Co. Ltd.), "Readily Soluble Aluminium Hydroxide". |
Chemical Abstracts, vol. 82 (Mar. 24, 1975), 124 No. 75093j (Japanese Patent Appln. 7425118 Sumitomo Chemical Co. Ltd.), "Recovering Valuable Components of Red Mud". |