Search Results - "Ilhwan Park"

Advances in Selective Flotation and Leaching Process in Metallurgy by Park, Ilhwan

“…Metals are a finite resource that are necessary to maintain living standards in modern society, due to their countless applications, such as transportation…”
Get full text

A review of recent strategies for acid mine drainage prevention and mine tailings recycling by Park, Ilhwan, Tabelin, Carlito Baltazar, Jeon, Sanghee, Li, Xinlong, Seno, Kensuke, Ito, Mayumi, Hiroyoshi, Naoki

“…Acid mine/rock drainage (AMD/ARD), effluents with low pH and high concentrations of hazardous and toxic elements generated when sulfide-rich wastes are exposed…”
Get full text

Copper and critical metals production from porphyry ores and E-wastes: A review of resource availability, processing/recycling challenges, socio-environmental aspects, and sustainability issues by Tabelin, Carlito Baltazar, Park, Ilhwan, Phengsaart, Theerayut, Jeon, Sanghee, Villacorte-Tabelin, Mylah, Alonzo, Dennis, Yoo, Kyoungkeun, Ito, Mayumi, Hiroyoshi, Naoki

“…•~243 Mt of E-wastes is estimated to be generated globally by 2050.•Complex sulfides, ultrafine particles & “dirty” concentrates are major ore processing…”
Get full text

Simultaneous suppression of acid mine drainage formation and arsenic release by Carrier-microencapsulation using aluminum-catecholate complexes by Park, Ilhwan, Tabelin, Carlito Baltazar, Seno, Kensuke, Jeon, Sanghee, Ito, Mayumi, Hiroyoshi, Naoki

“…Pyrite (FeS2), the most common sulfide mineral in nature, plays an important role in the formation of acid mine drainage (AMD), one of the most serious…”
Get full text

Suppression of arsenopyrite oxidation by microencapsulation using ferric-catecholate complexes and phosphate by Park, Ilhwan, Higuchi, Kazuki, Tabelin, Carlito Baltazar, Jeon, Sanghee, Ito, Mayumi, Hiroyoshi, Naoki

“…Mineral processing, pyro- and hydrometallurgical processes of auriferous sulfide ores and porphyry copper deposits (PCDs) generate arsenopyrite-rich wastes…”
Get full text

Ammonium thiosulfate extraction of gold from printed circuit boards (PCBs) of end-of-life mobile phones and its recovery from pregnant leach solution by cementation by Jeon, Sanghee, Tabelin, Carlito Baltazar, Park, Ilhwan, Nagata, Yoshito, Ito, Mayumi, Hiroyoshi, Naoki

“…In this study, the ammonium thiosulfate leaching of gold (Au) from printed circuit boards (PCBs) of end-of-life mobile phones and the subsequent recovery of…”
Get full text

Wall-Modeled Large-Eddy Simulation for Complex Turbulent Flows by Bose, Sanjeeb T, Park, George Ilhwan

“…Large-eddy simulation (LES) has proven to be a computationally tractable approach to simulate unsteady turbulent flows. However, prohibitive resolution…”
Get full text

Suppression of the release of arsenic from arsenopyrite by carrier-microencapsulation using Ti-catechol complex by Park, Ilhwan, Tabelin, Carlito Baltazar, Magaribuchi, Kagehiro, Seno, Kensuke, Ito, Mayumi, Hiroyoshi, Naoki

“…[Display omitted] •Ti(IV) Tris-catecholate complex was synthesized between pH 5 and 12.•Ti-based CME limited the release of As from arsenopyrite.•Mechanism of…”
Get full text

Enhanced cementation of gold via galvanic interactions using activated carbon and zero-valent aluminum: A novel approach to recover gold ions from ammonium thiosulfate medium by Jeon, Sanghee, Tabelin, Carlito Baltazar, Takahashi, Hirotaka, Park, Ilhwan, Ito, Mayumi, Hiroyoshi, Naoki

“…In gold (Au) hydrometallurgy, ammonium thiosulfate is the most attractive and promising alternative to conventional lixiviants like cyanide or the halides…”
Get full text

Interference of coexisting copper and aluminum on the ammonium thiosulfate leaching of gold from printed circuit boards of waste mobile phones by Jeon, Sanghee, Tabelin, Carlito Baltazar, Takahashi, Hirotaka, Park, Ilhwan, Ito, Mayumi, Hiroyoshi, Naoki

“…•Au extraction from waste mobile phone PCBs decreased at high S/L.•Extracted Au ions were re-deposited onto Cu and Al in PCBs by cementation.•Individually,…”
Get full text

Depression of lead-activated sphalerite by pyrite via galvanic interactions: Implications to the selective flotation of complex sulfide ores by Aikawa, Kosei, Ito, Mayumi, Segawa, Tatsuya, Jeon, Sanghee, Park, Ilhwan, Tabelin, Carlito Baltazar, Hiroyoshi, Naoki

“…[Display omitted] •Pyrite depresses the floatability of lead-activated sphalerite.•Galvanic interactions between pyrite and lead-activated sphalerite…”
Get full text

Gold recovery from shredder light fraction of E-waste recycling plant by flotation-ammonium thiosulfate leaching by Jeon, Sanghee, Ito, Mayumi, Tabelin, Carlito Baltazar, Pongsumrankul, Rongrit, Kitajima, Naho, Park, Ilhwan, Hiroyoshi, Naoki

“…[Display omitted] •Au and base metals in SLF were separately recovered by flotation.•Over 99% of Au was recovered from SLF by flotation as froth products.•Over…”
Get full text

A simple and efficient recovery technique for gold ions from ammonium thiosulfate medium by galvanic interactions of zero-valent aluminum and activated carbon: A parametric and mechanistic study of cementation by Jeon, Sanghee, Bright, Sharrydon, Park, Ilhwan, Tabelin, Carlito Baltazar, Ito, Mayumi, Hiroyoshi, Naoki

“…Cyanide- and halide-based extraction methods are the most common ways of leaching gold (Au) from Au-bearing materials, but because of the toxicity and/or…”
Get full text

Editorial for Special Issue “Sustainable Production of Metals for Low-Carbon Technologies” by Ilhwan Park, Marthias Silwamba

“…In 2015, 193 governments agreed to act on climate change by drastically reducing carbon dioxide (CO2) emissions as envisaged in the sustainable development…”
Get full text

Kinetic Analysis for Agglomeration-Flotation of Finely Ground Chalcopyrite: Comparison of First Order Kinetic Model and Experimental Results by Hornn, Vothy, Ito, Mayumi, Yamazawa, Ryosuke, Shimada, Hiromasa, Tabelin, Carlito Baltazar, Jeon, Sanghee, Park, Ilhwan, Hiroyoshi, Naoki

“…Particle size-flotation rate relationships can be discussed by a first-order kinetic model for flotation, which considers the probability of particle-bubble…”
Get full text

A physical separation scheme to improve ammonium thiosulfate leaching of gold by separation of base metals in crushed mobile phones by Jeon, Sanghee, Ito, Mayumi, Tabelin, Carlito Baltazar, Pongsumrankul, Rongrit, Tanaka, Shinya, Kitajima, Naho, Saito, Ayumu, Park, Ilhwan, Hiroyoshi, Naoki

“…•A physical-chemical treatment scheme for mobile phone recycling was evaluated.•Au was separated from base metals and recovered in coarse fraction by jig…”
Get full text

Enhanced cementation of Cd2+, Co2+, Ni2+, and Zn2+ on Al from sulfate solutions by activated carbon addition by Choi, Sanghyeon, Jeon, Sanghee, Park, Ilhwan, Tabelin, Carlito Baltazar, Ito, Mayumi, Hiroyoshi, Naoki

“…Cadmium (Cd), cobalt (Co), nickel (Ni), and zinc (Zn) are important components of batteries and renewable energy technologies but their recovery from pregnant…”
Get full text

On the grid convergence of wall-modeled large-eddy simulation by Hu, Xiaohan, Yang, Xiang, Ilhwan Park, George

“…At first glance, grid convergence and wall modeling appear to be competing objectives that require reconciliation in inherently underresolved wall-modeled…”
Get full text

A Review of Recent Advances in Depression Techniques for Flotation Separation of Cu–Mo Sulfides in Porphyry Copper Deposits by Park, Ilhwan, Hong, Seunggwan, Jeon, Sanghee, Ito, Mayumi, Hiroyoshi, Naoki

“…Porphyry copper deposits (PCDs) are some of the most important sources of copper (Cu) and molybdenum (Mo). Typically, the separation and recovery of…”
Get full text

Effects of coarse chalcopyrite on flotation behavior of fine chalcopyrite by Bilal, Muhammad, Ito, Mayumi, Koike, Kanami, Hornn, Vothy, Ul Hassan, Fawad, Jeon, Sanghee, Park, Ilhwan, Hiroyoshi, Naoki

“…•Autogenous carrier flotation improved the floatability of finely ground chalcopyrite.•Interaction energies between coarse and fine chalcopyrite were…”
Get full text