MMIJ 2025, Sapporo
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Session Details

General Session

(General session) Environment / Mineral processing

Wed. Sep 3, 2025 9:00 AM - 12:00 PM JST
Wed. Sep 3, 2025 12:00 AM - 3:00 AM UTC
Room-5 (B12, 1Fl, B1 Block)
Chairperson: 晴山　渉（岩手大学）、三木　一（九州大学）

●環境：資源・素材プロセスの過程で排出される環境負荷物質の不動化技術，浄化材料，化学再生，モデリング，リスク評価および資源・素材プロセス技術を適用した環境保全に関する学術的議論を行う。

●鉱物処理：天然鉱物資源の選鉱・製錬分野（物理選別，浮遊選鉱，バイオリーチング，ケミカルリーチング等）における新手法開発，新たな対象物への適用技術開発等について議論を行う。

(Presentation: 15 minutes allotted for lecture and 5 minutes for Q&A out of 20 minutes per presentation)
9:00 AM - 9:20 AM JST(12:00 AM - 12:20 AM UTC)

[2501-08-01]Geochemical modeling-based evaluation of passive treatment methods for acid mine drainage at a legacy mine

○Sereyroith Tum1, Taiki Katayama1, Naoyuki Miyata2, Takaya Hamai3, Tetsuo Yasutaka1 (1. National Institute of Advanced Industrial Science and Technology, 2. Akita Prefectural University, 3. Japan Oil, Gas and Metals National Corporation)
司会：晴山　渉（岩手大学）
9:20 AM - 9:40 AM JST(12:20 AM - 12:40 AM UTC)

[2501-08-02]Improving the accuracy of leachate estimation using a Tank model incorporating snow accumulation and melt processes

○Kenichi Yamano1[Student presentation: Doctoral course], Keishi Oyama2, Yutaro Takaya3, Chiharu Tokoro4,3 (1. DOWA ECO-SYSTEM CO.,LTD., 2. Kyushu University, 3. The University of Tokyo, 4. Waseda University)
司会：晴山　渉（岩手大学）
9:40 AM - 10:00 AM JST(12:40 AM - 1:00 AM UTC)

[2501-08-03]Optimization of cleaner column flotation operation to improve copper concentrate quality

○Yuki Hamanaka1, Genta Sato1, Naoya Sato2, Hajime Kijitani1, Koichiro Takatsugi1 (1. Mitsubishi Materials Corporation, 2. MM Copper Corporation)
司会：晴山　渉（岩手大学）
10:00 AM - 10:20 AM JST(1:00 AM - 1:20 AM UTC)

[2501-08-04]Leachability studies of complex copper oxide ores in Mantoverde mine, Chile

○Diego Mendoza Flores1, Ikumi Suyama1, Hajime Kijitani1, Koichiro Takatsugi1 (1. Mitsubishi Materials Corporation)
司会：晴山　渉（岩手大学）
10:20 AM - 10:40 AM JST(1:20 AM - 1:40 AM UTC)

[2501-08-5add]Break

司会：三木　一（九州大学）
10:40 AM - 11:00 AM JST(1:40 AM - 2:00 AM UTC)

[2501-08-05]Investigation of collectorless flotation and additive roasting conditions for the recovery of copper from copper sulfide ore

○Bekhzod Mirzo Gayratov1[Student presentation: Doctoral course], Bobur Gayratov1, Labone Godirilwe1, Sanghee Jeon1, Atsushi Shibayama1 (1. Akita University)
司会：三木　一（九州大学）
11:00 AM - 11:20 AM JST(2:00 AM - 2:20 AM UTC)

[2501-08-06]Quantitative NMR-Based Evaluation of Particle Hydrophobicity in Flotation

○Keisuke Nakakubo1, Ogata Takeshi1, Hayashi Naohito1, Tatsuya Oki1 (1. AIST)
司会：三木　一（九州大学）
11:40 AM - 12:00 PM JST(2:40 AM - 3:00 AM UTC)

[2501-08-08]Improvement of sedimentation of nickel oxide ore by zeta potential control using flocculant

○TAKASHI KANEKO1, NAKAMURA SOU1, WATANABE HIROTO1 (1. SUMITOMO METAL MINING CO.,LTD.)
司会：三木　一（九州大学）
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