Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Sanghee Jeon"'
Autor:
Theerayut Phengsaart, Chaiwat Manositchaikul, Palot Srichonphaisarn, Onchanok Juntarasakul, Kreangkrai Maneeintr, Sanghee Jeon, Ilhwan Park, Carlito Baltazar Tabelin, Naoki Hiroyoshi, Mayumi Ito
Publikováno v:
Frontiers in Chemistry, Vol 10 (2022)
We developed a technique called the reverse hybrid jig, an advanced physical separation technique that combines the principles of jig and flotation to separate floating plastics. This technique is a promising green technology that is more economical
Externí odkaz:
https://doaj.org/article/9817936380594f97bf36916d74c5bcbb
Autor:
Takunda Joseph Mhandu, Ilhwan Park, Sanghee Jeon, Sohta Hamatsu, Yogarajah Elakneswaran, Mayumi Ito, Naoki Hiroyoshi
Publikováno v:
Metals, Vol 13, Iss 8, p 1357 (2023)
The use of thiosulfate to extract gold from refractory ores is promising because of its non-toxicity and high selectivity. Sulfide minerals (i.e., pyrite, arsenopyrite, chalcopyrite), major gold carriers in refractory gold ores, however, hinder gold
Externí odkaz:
https://doaj.org/article/e5bab82bb691438ba3008bd74dfdbc31
Autor:
Joshua Zoleta, Sanghee Jeon, Akuru Kuze, Nako Okada, Ilhwan Park, Mayumi Ito, Yogarajah Elakneswaran, Naoki Hiroyoshi
Publikováno v:
Metals, Vol 13, Iss 7, p 1289 (2023)
Ammonium thiosulfate leaching is a promising alternative to the conventional cyanide method for extracting gold from ores. However, strategies for recovering gold from the leachate are less commercially used due to its low affinity to gold. The prese
Externí odkaz:
https://doaj.org/article/acc681e50a914b1086b517c5ba4d79d7
Autor:
Muhammad Bilal, Ilhwan Park, Mayumi Ito, Fawad Ul Hassan, Kosei Aikawa, Sanghee Jeon, Naoki Hiroyoshi
Publikováno v:
Minerals, Vol 13, Iss 7, p 916 (2023)
Carrier flotation is a technique that can recover fine particles by using coarse carrier particles during the flotation process. In heterogeneous carrier flotation, coarse mineral particles of different minerals are used as carriers to recover fine m
Externí odkaz:
https://doaj.org/article/1b1aaec598904ea9b31c2942a456b7c8
Autor:
Marthias Silwamba, Mayumi Ito, Carlito Baltazar Tabelin, Ilhwan Park, Sanghee Jeon, Masao Takada, Yasushi Kubo, Naohiro Hokari, Masami Tsunekawa, Naoki Hiroyoshi
Publikováno v:
Environmental Advances, Vol 5, Iss , Pp 100115- (2021)
Lead (Pb) contaminated soils pose serious risks to human health and the environment. One remediation technique that permanently removes Pb is chemical soil washing. This study investigated a modified chemical soil washing technique whereby Pb extract
Externí odkaz:
https://doaj.org/article/950355a01ea44159b033c86d7d6f220e
Autor:
Kosei Aikawa, Mayumi Ito, Nodoka Orii, Sanghee Jeon, Ilhwan Park, Kazutoshi Haga, Taro Kamiya, Tatsuru Takahashi, Kazuya Sunada, Taisuke Sakakibara, Tatsuhiro Ono, Refilwe S. Magwaneng, Naoki Hiroyoshi
Publikováno v:
Minerals, Vol 12, Iss 9, p 1103 (2022)
Porphyry copper deposits are important sources of copper and typically processed by flotation to produce copper concentrates. As mining areas become deeper, the amounts of impurities, such as sphalerite, can be increased in copper ores, so the approp
Externí odkaz:
https://doaj.org/article/7cb464f1e1764c429cdcd830f64d2cf0
Publikováno v:
Minerals, Vol 12, Iss 6, p 723 (2022)
The presence of anglesite (PbSO4) in complex sulfide ores negatively affects the separation of Cu-Pb sulfides and sphalerite (ZnS) due to lead activation, and PbSO4 rejected to tailings dams contaminates the surrounding environment with lead. To addr
Externí odkaz:
https://doaj.org/article/88d2a30ed5c344b5914b8e88027b8f04
Autor:
Muhammad Bilal, Ilhwan Park, Vothy Hornn, Mayumi Ito, Fawad Ul Hassan, Sanghee Jeon, Naoki Hiroyoshi
Publikováno v:
Minerals, Vol 12, Iss 5, p 586 (2022)
Flotation is a common mineral processing method used to upgrade copper sulfide ores; in this method, copper sulfide mineral particles are concentrated in froth, and associated gangue minerals are separated as tailings. However, a significant amount o
Externí odkaz:
https://doaj.org/article/326e6dc4f1b841eaad36dceb15df1906
Autor:
Marthias Silwamba, Mayumi Ito, Naoki Hiroyoshi, Carlito Baltazar Tabelin, Ryota Hashizume, Tomoki Fukushima, Ilhwan Park, Sanghee Jeon, Toshifumi Igarashi, Tsutomu Sato, Imasiku Nyambe, Hokuto Nakata, Shouta Nakayama, Mayumi Ishizuka
Publikováno v:
Minerals, Vol 12, Iss 4, p 393 (2022)
Zinc plant leach residues (ZPLRs), particularly those produced using old technologies, have both economic importance as secondary raw materials and have environmental impacts because they contain hazardous heavy metals that pose risks to human health
Externí odkaz:
https://doaj.org/article/74e4f87929db4b918d79f7599c9e832e
Autor:
Ilhwan Park, Carlito Baltazar Tabelin, Kensuke Seno, Sanghee Jeon, Hiroyuki Inano, Mayumi Ito, Naoki Hiroyoshi
Publikováno v:
Heliyon, Vol 6, Iss 1, Pp e03189- (2020)
Mining activities often generate large amounts of sulfide-rich wastes containing arsenopyrite (FeAsS), which when dissolved releases toxic arsenic (As) and generates acid mine drainage (AMD) that are both disastrous to the environment. To suppress ar
Externí odkaz:
https://doaj.org/article/ef936f495e0b4183a0cbc6aa804297e8