*Saefudin Juhri¹、Naritomi Tadahiro¹、Kotaro Yonezu¹、Eiki Watanabe²、Shogo Sato²、Naho Inoue²、Takushi Yokoyama^2,3 (1.Dept. Earth Resources Engineering, Kyushu University, Fukuoka, Japan、2.Kyudensangyo Co., Inc., Fukuoka, Japan、3.Dept. Chemistry, Kyushu University, Fukuoka, Japan)