九州大学 アジア・オセアニア研究教育機構

九州大学

教員・研究者パンデイ ウイスヌ 学術研究員(特任助教)

パンデイ ウイスヌ 学術研究員(特任助教)

パンデイ ウイスヌ 学術研究員(特任助教)
  • Laboratory of Mineral Processing, Recycling, and Enviromental Remediation Department of Earth Resources Engineering, Faculty of Engineering Kyushu University, Fukuoka, Japan
  • pandhe@mine.kyushu-u.ac.jp
  • 専門:鉱物処理、鉱物浮選、分離技術、表面化学、表面分析

略歴

2004~2009年 Bachelor of Engineering
Department of Chemical Engineering, Faculty of Engineering, Gadjah Mada University, Yogyakarta, Indonesia
2009~2012年 Master of Engineering
Department of Chemical Engineering, Faculty of Engineering, Gadjah Mada University, Yogyakarta, Indonesia
2014~2017年 博士課程(Engineering in Mineral Processing)
九州大学 工学研究院
2017年10月~2020年3月 学術研究員
九州大学 工学研究院 地球資源システム工学部門
2020年4月~ 特任助教
九州大学 工学研究院 地球資源システム工学部門

研究の概要:

私の研究は主に、さまざまな供給源からの貴重な鉱物の抽出と分離に焦点を当てています。 私は気泡を使って浮選という方法で銅鉱物を抽出しています。 また、浮選を使用して銅とモリブデンの鉱物を分離する代わりに、海水と酸化処理を使用する可能性についても調査しました。 X線光電子分光法(XPS)、ゼータ電位と接触角の測定、原子間力顕微鏡などのさまざまな表面分析を使用して、浮揚挙動を説明しました。 また、気泡と鉱物表面との相互作用を測定する画像処理ソフトウェアを開発しました。 現在、私は銅と砒素を含む銅鉱物の分離に焦点を当てて、採掘作業における砒素の有害な影響を減らし、環境への砒素汚染を最小限に抑えています。

関係するアジア・オセアニアの国々:

インドネシア、韓国、中国

メッセージ:

「速く行きたいのなら、一人で行きなさい。 遠くまで行きたいのなら一緒に行きなさい」(アフリカのことわざ)。 私はオープンマインドで、新しいことに挑戦したいと思っています。 Q-AOSに参加することは、さまざまなバックグラウンドを持つさまざまな人々とつながり、関わり、各分野の境界をはるかに超えて、私たちの視点と知識を拡大する可能性の1つです。 私は写真愛好家でもあり、糸島半島と九州大学は、自然、人、文化、学問的な雰囲気を写真に収めるのにとても良いコンビネーションを提供してくれます。

主要業績:

査読付きジャーナル

  1. Tanaka Y., Miki, H., Suyantara, G.P.W., Aoki, Y., Hirajima, T., 2021, Mineralogical prediction on the flotation behavior of copper and molybdenum minerals from blended Cu-Mo ores in seawater. Minerals 11, 869.
  2. Suyantara, G.P.W., Hirajima, T., Miki, H., Sasaki, K., 2020. Bubble interactions with chalcopyrite and molybdenite surfaces in seawater. Minerals Engineering 157, 106536.
  3. Suyantara, G.P.W., Hirajima, T., Miki, H., Sasaki, K., Kuroiwa, S., Aoki, Y., 2020. Effect of H2O2 and potassium amyl xanthate on separation of enargite and tennantite from chalcopyrite and bornite using flotation. Minerals Engineering 152, 106371.
  4. Suyantara, G.P.W., Hirajima, T., Miki, H., Sasaki, K., 2018. Floatability of molybdenite and chalcopyrite in artificial seawater. Minerals Engineering 115, 117–130.
  5. Suyantara, G.P.W., Hirajima, T., Miki, H., Sasaki, K., Yamane, M., Takida, E., Kuroiwa, S., Imaizumi, Y., 2018. Effect of Fenton-like oxidation reagent on hydrophobicity and floatability of chalcopyrite and molybdenite. Colloids and Surfaces A: Physicochemical and Engineering Aspects 554, 34–48.
  6. Suyantara, G.P.W., Hirajima, T., Miki, H., Sasaki, K., Yamane, M., Takida, E., Kuroiwa, S., Imaizumi, Y., 2018. Selective flotation of chalcopyrite and molybdenite using H2O2 oxidation method with the addition of ferrous sulfate. Minerals Engineering 122, 312–326.
  7. Miki, H., Hirajima, T., Muta, Y., Suyantara, G.P.W., Sasaki, K., 2018. Effect of sodium sulfite on floatability of chalcopyrite and molybdenite. Minerals 8, 172.
  8. Miki, H., Matsuoka, H., Hirajima, T., Suyantara, G.P.W., Sasaki, K., 2017. Electrolysis oxidation of chalcopyrite and molybdenite for selective flotation. Materials Transactions 58, 761–767.
  9. Hirajima, T., Miki, H., Suyantara, G.P.W., Matsuoka, H., Elmahdy, A.M., Sasaki, K., Imaizumi, Y., Kuroiwa, S., 2017. Selective flotation of chalcopyrite and molybdenite with H2O2 oxidation. Minerals Engineering 100, 83–92.
  10. Hirajima, T., Suyantara, G.P.W., Ichikawa, O., Elmahdy, A.M., Miki, H., Sasaki, K., 2016. Effect of Mg2+ and Ca2+ as divalent seawater cations on the floatability of molybdenite and chalcopyrite. Minerals Engineering, Special Issue: Froth Flotation 96–97, 83–93.
  11. Suyantara, G.P.W., Hirajima, T., Elmahdy, A.M., Miki, H., Sasaki, K., 2016. Effect of kerosene emulsion in MgCl2 solution on the kinetics of bubble interactions with molybdenite and chalcopyrite. Colloids and Surfaces A: Physicochemical and Engineering Aspects 501, 98–113.

学会論文

  1. Yuta Orii, Gde Pandhe Wisnu Suyantara, Hajime Miki, Keiko Sasaki, Tsuyoshi Hirajima, Shigeto Kuroiwa, Yuji Aoki, 2019. Study of selective flotation of copper sulfides and copper arsenic minerals. In: International Symposium on Earth Science and Technology, Fukuoka, Japan.
  2. Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Shigeto Kuroiwa, Yuji Aoki, 2019. Effect of hydrogen peroxide on the separation of copper sulfide minerals and arsenic-bearing copper minerals using flotation. In Flotation 2019, Cape Town, South Africa.
  3. Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Shigeto Kuroiwa, Yuji Aoki, 2019. Effect of seawater on bubble interactions with chalcopyrite and molybdenite surfaces. In Flotation 2019, Cape Town, South Africa.
  4. Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Masashi Yamane, Eri Takida, Shigeto Kuroiwa, Yuji Imaizumi, Mitsuru Sawada, 2019. Separation of molybdenite and chalcopyrite using various oxidation treatments. In Copper 2019, Vancouver, Canada.
  5. Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Makoto Umedara, Takeshi Nakamura, Shigeto Kuroiwa, 2019. Effect of hydrogen peroxide on floatability of chalcopyrite, bornite, tennantite, and enargite. In Copper 2019, Vancouver, Canada.
  6. Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, 2018. The use of Fenton`s reagent on selective flotation of chalcopyrite and molybdenite. In: XXIX International Mineral Processing Congress (IMPC), Moskow, Rusia.
  7. Hajime Miki, Tsuyoshi Hirajima, Yuta Muta, Gde Pandhe Wisnu Suyantara, Keiko Sasaki, 2018. Investigation of reagents for selective flotation on chalcopyrite and molybdenite. In: XXIX International Mineral Processing Congress (IMPC), Moskow, Rusia.
  8. Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, 2017. Effect of hydrogen peroxide on separation of chalcopyrite and molybdenite using flotation. In: 14th International Symposium on East Asian Resources Recycling Technology (EARTH), Hokkaido, Japan.
  9. Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Ahmed Mohamed Elmahdy, Hajime Miki, Keiko Sasaki, 2016. The effect of MgCl2 solution on the stability of the intervening liquid layer in bubble interactions with chalcopyrite and molybdenite surfaces. In: International Symposium on Earth Science and Technology, Fukuoka, Japan.
  10. Tsuyoshi Hirajima, Osamu Ichikawa, Hajime Miki, Keiko Sasaki, Gde Pandhe Wisnu Suyantara, Ahmed Mohamed Elmahdy, 2016. Floatability of chalcopyrite and molybdenite in MgCl2 solution. In: Copper 2016, Kobe, Japan.
  11. Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Osamu Ichikawa, Hajime Miki, Keiko Sasaki, Ahmed Mohamed Elmahdy, 2016. Bubble collision and attachment on chalcopyrite and molybdenite surfaces. In: Copper 2016, Kobe, Japan.
  12. Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Ahmed Mohamed Elmahdy, Hajime Miki, Keiko Sasaki, 2016. Effect of kerosene on bubble interaction with molybdenite and chalcopyrite in MgCl2 solution. In: XXVIII International Mineral Processing Congress (IMPC), Quebec, Canada.
  13. Tsuyoshi Hirajima, Hidekazu Matsuoka, Hajime Miki, Gde Pandhe Wisnu Suyantara, Ahmed Mohamed Elmahdy, Keiko Sasaki, 2016. Comparison of selective flotation of chalcopyrite and molybdenite with various oxidation techniques. XXVIII International Mineral Processing Congress (IMPC), Quebec, Canada.
  14. Tsuyoshi Hirajima, Osamu Ichikawa, Gde Pandhe Wisnu Suyantara, Hajime Miki, Keiko Sasaki, Ahmed Mohamed Elmahdy, 2015. Seawater divalent cations (MgCl2 and CaCl2) effect on the flotation of molybdenite and chalcopyrite. In: Flotation Conference, Cape Town, South Africa.

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