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Naoki Hiroyoshi

Hokkaido University

５ Kita 8 Jonishi, Kita Ward

Hokkaido Prefecture

Sapporo, 060-0808

Japan

  • Hokkaido University

SCHOLARLY PAPERS

3

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244

TOTAL CITATIONS

0

Scholarly Papers (3)

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1.

Conventional and Recent Advances in Gravity Separation Technologies for Coal Cleaning: A Systematic and Critical Review

Number of pages: 94 Posted: 17 Oct 2022
Theerayut Phengsaart, Palot Srichonphaisan, Chinawich Kertbundit, Natatsawas Soonthornwiphat, Somthida Sinthugoot, Nutthakarn Phumkokrux, Onchanok Juntarasakul, Kreangkrai Maneeintr, Apisit Numprasanthai, Takahiko Arima, Carlito Baltazar Tabelin, Naoki Hiroyoshi and Mayumi Ito
Chulalongkorn University - Department of Mining and Petroleum Engineering, Chulalongkorn University, Chulalongkorn University, Chulalongkorn University, Ministry of Natural Resources and Environment, Malaysia, Ramkhamhaeng University, Chulalongkorn University, Chulalongkorn University, Chulalongkorn University, Hokkaido University, University of New South Wales (UNSW), Hokkaido University and Hokkaido University
Downloads 122 (596,393)

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Coal, Clean coal technology, Coal Cleaning, Gravity separation, Separation technology

2.

Ammonium Thiosulfate Leaching of Gold in the Presence of Arsenopyrite: Understanding of the Suppression Mechanism of Gold Extraction by Arsenopyrite and the Application of Pre-Oxidation Step to Improve Gold Extraction

Number of pages: 45 Posted: 27 Mar 2023
Takunda Joseph Mhandu, Sanghee Jeon, Sohta Hamatsu, Takahiko Arima, Yogarajah Elakneswaran, Mayumi Ito and Naoki Hiroyoshi
affiliation not provided to SSRN, Akita University, Hokkaido University, Hokkaido University, Hokkaido University, Hokkaido University and Hokkaido University
Downloads 110 (649,907)

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gold, arsenopyrite, ammonium thiosulfate, cyanide, leaching, refractory ores

3.

SYNERGISTIC EFFECTS OF DOLOMITE, TALC, AND CHICKEN EGGSHELL ADDITIVES ON CHAR FORMATION AND THERMAL STABILITY OF APP–MEL–EG INTUMESCENT COATING SYSTEM FOR STEEL PROTECTION

Number of pages: 34 Posted: 14 May 2026
Edrhea Villas, Gevelyn Itao, Vannie Joy Resabal, Carlito Baltazar Tabelin, Takahiko Arima, Mayumi Ito, Naoki Hiroyoshi, Yogarajah Elakneswaran, Mylah Villacorte-Tabelin, Jaypee Yongco, michelle jeanne caracut, Arnold A. Lubguban and Joshua B. Zoleta
affiliation not provided to SSRN, affiliation not provided to SSRN, MSU-Iligan Institute of Technology, MSU-Iligan Institute of Technology, Hokkaido University, Hokkaido University, Hokkaido University, Hokkaido University, Hokkaido University, affiliation not provided to SSRN, affiliation not provided to SSRN, MSU-Iligan Institute of Technology and affiliation not provided to SSRN
Downloads 12 (1,555,090)

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Intumescent coating, Flame retardant, Dolomite, Talc, Chicken eggshell, ATR-FTIR, TGA, SEM-EDS, XRD, XPS