MMIJ 2025, Sapporo
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Session Details

General Session

(General session) Hydrometallurgy / High-temperature materials processing

Thu. Sep 4, 2025 9:00 AM - 11:30 AM JST
Thu. Sep 4, 2025 12:00 AM - 2:30 AM UTC
Room-5 (B12, 1Fl, B1 Block)
Chairperson: 畑田 直行（京都大学）、佐々木 秀顕（愛媛大）

●湿式素材プロセッシング：湿式製錬，リサイクル，水溶液をはじめとする溶液系での新素材の製造に関する反応，電解もしくはバイオリーチングなどについてその熱力学・速度論などの学問的議論を行う。

●高温素材プロセッシング：乾式製錬，リサイクル，高温における新素材の製造に関する反応，高温溶融塩電解などについて、その熱力学・速度論などの学問的議論を行う。

(Presentation: 12 minutes allotted for lecture and 8 minutes for Q&A out of 20 minutes per presentation)
9:00 AM - 9:20 AM JST(12:00 AM - 12:20 AM UTC)

[3501-07-01]Glycine-based stepwise leaching strategy for selective dissolution of Pb, Cu, and Zn from seafloor hydrothermal ore

○Gowthaman SIVAKUMAR Sivakumar1, Rishni Masimbula1, Naoko Okibe1 (1. Kyushu University)
司会：畑田 直行（京都大学）
9:20 AM - 9:40 AM JST(12:20 AM - 12:40 AM UTC)

[3501-07-02]Digestion of titanium slag by sulfuric acid

○Nanoha Tamada1[Student presentation: Master’s course], Shinya Fujiwara1, Nina Iwabuchi1, Hidehiro Sekimoto1 (1. Iwate University)
司会：畑田 直行（京都大学）
9:40 AM - 10:00 AM JST(12:40 AM - 1:00 AM UTC)

[3501-07-03]Formation mechanism of pores on surface of PV-grade silver coated copper powder

○Minggang Li1, ggenshen Wan1, Jianwen Changsha Zhang2 (1. Central South University, 2. Changsha Research Institute of Mining&Metallurgy Co.,Ltd.)
司会：畑田 直行（京都大学）
10:00 AM - 10:10 AM JST(1:00 AM - 1:10 AM UTC)

[3501-07-4add]Break

10:10 AM - 10:30 AM JST(1:10 AM - 1:30 AM UTC)

[3501-07-04]Extraction of Tb from Tb–Fe alloy using molten Mg, Bi, or Pb

○Iori Watanabe1[Student presentation: Master’s course], Takashi Murata1, Katsunori Yamaguchi1 (1. Waseda University)
司会：佐々木 秀顕（愛媛大）
10:30 AM - 10:50 AM JST(1:30 AM - 1:50 AM UTC)

[3501-07-05]Separation and Recovery of Rare Earth Elements from Electric Vehicle Motors using the RExOy-CaO-Al2O3-SiO2 slag system

○Yuki Okuyama1[Student presentation: Master’s course], Kazuhiro Ogawa2, Takashi Murata1, Katsunori Yamaguchi1 (1. Waseda University, 2. Nissan Motor Co., Ltd.)
司会：佐々木 秀顕（愛媛大）
10:50 AM - 11:10 AM JST(1:50 AM - 2:10 AM UTC)

[3501-07-06]Contorol of solidification process of CdSnAs2 and its application to thermoelectrics

Shoki Kishida1, Norihiko Okamoto2, Ryoji Katsube3, Akira Nagaoka4, Isshin Sumiyoshi1, Kensuke Nishioka4, Tetsu Ichitsubo2, ○Yoshitaro Nose1 (1. Kyoto University, 2. Tohoku University, 3. Nagoya University, 4. University of Miyazaki)
司会：佐々木 秀顕（愛媛大）
11:10 AM - 11:30 AM JST(2:10 AM - 2:30 AM UTC)

[3501-07-07]Verification of Internal Consistency in the NIST-JANAF Thermochemical Tables and Analysis of Coverage in Major Databases

○Naoyuki Hatada1, Tetsuya Uda1 (1. Kyoto University)
司会：佐々木 秀顕（愛媛大）
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