Staff Akademik – Zela Tanlega

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Zela Tanlega, ST., M.Phil

Zela Tanlega, ST., M.Phil., Ph.D.
Nopeg: 117110049

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  • Phone : +62 (0) 22 2502239
  • Fax :+62 (0) 22 2504209
  • Email :


  • Hydrometallurgical techniques for the recovery of metals from low-grade and complex ores
  • Valorisation of mining waste and tailings


  • PhD, WA School of Mines, Curtin University, 2017-2022
    (Thesis: Development of an Industrially Applicable Electrostatic Solvent Extraction Column for Process Metallurgy)
  • Master of Philosophy, WA School of Mines, Curtin University, 2013-2015
    (Thesis: Development of a Solvent Extraction Process for the Recovery of Nickel and Cobalt from Nitrate Solutions)
  • Bachelor of Science, Department of Metallurgical Engineering, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, 2009-2013
    Final Project: Separation of Iron(II) and Magnesium from Nickel and Cobalt in Artificial Sulphate Solution Using Versatic 10


  1. Kurniawan, M R, Imami, T G, Ichlas, Z T, Mubarok, M Z (2022) Production of synthetic rutile from tin ore beneficiation byproduct through preoxidation and reductive leaching in hydrochloric acid. Scientific Reports. Vol. 12, Number 1, pp. 1-113.
  2. Technospheric mining of scandium from hydrometallurgical tailings of nickel laterite processing: Selection of lixiviant and optimisation of leaching variables. Minerals Engineering. Vol. 179 [In Press]
  3. Hussaini, S, Kursunoglu, S, Top, S, Ichlas, Z T, Kaya, M (2021) Testing of 17-different leaching agents for the recovery of zinc from a carbonate-type Pb-Zn ore flotation tailing. Minerals Engineering. Vol. 168 [In Press]
  4. Hussaini, S, Tita, A M, Kursunoglu, S, Top, S, Ichlas, Z T, Kar, U, Kaya, M (2021) Pb-Zn recovery from a malic leach solution of a carbonate type ore flotation tailing by precipitation and solvent extraction. Solution and Purification Technology. Vol. 272 [In Press]
  5. Kursunoglu, S, Hussaini, S, Top, S, Ichlas, Z T, Gokcen, H S, Ozsarac, S, Kaya, M (2021) Production of mixed rare earth oxide powder from a thorium containing complex Bastnasite ore. Powder Technology. Vol. 379, pp. 1-6.
  6. Hussaini, S, Ichlas, Z T, Top, S, Kursunoglu, S, Kaya, M. (2020) Selective leaching of a mixed nickel-cobalt hydroxide precipitate in sulphuric acid solution with potassium permanganate as oxidant. Separation Science and Technology. Vol. 56, Number 14, pp. 2475-2484.
  7. Ichlas, Z T, Rustandi, R A, Mubarok, M Z (2020) Selective nitric acid leaching for recycling of lead-bearing solder dross. Journal of Cleaner Production, Vol. 264 [In Press]
  8. Ichlas, Z T, Mubarok, M Z, Magnalita, A, Vaughan, J, Sugiarto, A T (2020) Processing mixed nickel-cobalt hydroxide precipitate by sulfuric acid leaching followed by selective oxidative precipitation of cobalt and manganese. Hydrometallurgy, Vol. 191 [In Press]
  9. Top, S, Kursunoglu, S, Ichlas, Z T (2020) Effects of leaching parameters on the dissolution of nickel, cobalt, manganese and iron from Caldag lateritic nickel ore in hydrochloric acid solution. Canadian Metallurgical Quarterly. Vol. 59, Number 3, pp. 368-376.
  10. Kursunoglu, S, Ichlas, Z T, Kaya, M (2018) Dissolution of lateritic nickel ore using ascorbic acid as synergistic reagent in sulphuric acid solution. Transactions of Nonferrous Metals Society of China, Vol. 28, Number 8, pp 1652-1659.
  11. Mubarok, M Z, Sukamto, K, Ichlas, Z T, Sugiarto, A T (2018) Direct sulfuric acid leaching of zinc sulfide concentrate using ozone as oxidant under atmospheric pressure. Minerals & Metallurgical Processing, Vol. 35, Number 3, pp. 133-140.
  12. Chaerun, S K, Putri F Y, Minwal, W P, Ichlas Z T, Mubarok, M Z (2018) Bacterial leaching of an Indonesian complex copper sulfide ore using an iron-oxidizing indigenous bacterium. Microbiology Indonesia. Vol. 12, Number 1, pp 1-6.
  13. Chaerun, S K, Putri, F Y, Mubarok, M Z, Minwal, W P, Ichlas, Z T (2017) Bioleaching of supergene porphyry copper ores from Sungai Mak Gorontalo of Indonesia by an iron- and sulfur-oxidizing mixotrophic bacterium. Solid State Phenomena, Vol. 262, pp. 20-23.
  14. Kursunoglu, S., Ichlas, Z.T., Kaya, M. (2017) Leaching method selection for Caldag lateritic nickel ore by the analytic hierarchy process (AHP). Hydrometallurgy, Vol. 171, pp. 179-184.
  15. Kursunoglu, S., Ichlas, Z.T., Kaya, M. (2017) Solvent extraction process for the recovery of nickel and cobalt from Caldag laterite leach solution: the first bench scale study. Hydrometallurgy, Vol. 169, pp. 135-141.
  16. Mubarok, M.Z., Winarko, R. Chaerun, S. K., Rizki, I. N., Ichlas, Z.T. (2017) Improving gold recovery from refractory gold ores through biooxidation using iron-sulfur-oxidizing/sulfur-oxidizing mixotrophic bacteria. Hydrometallurgy, Vol. 168, pp. 69-75.
  17. Ichlas, Z.T., Ibana, D.C. (2017) Process development for a direct solvent extraction of nickel and cobalt from nitrate solution: aluminum, cobalt and nickel separation using Cyanex 272. International Journal of Minerals, Metallurgy and Materials, Vol. 24, Number 1, pp. 37-46.


  1. Chaerun, S K, Putri, F Y, Minwal, W P, Ichlas, Z T, Mubarok, M Z (2019) Extraction of copper (Cu) from low-grade complex copper ores using biosurfactant-producing bacteria. The 23rd International Biohydrometallurgy Symposium (IBS) 2019, Fukuoka, Japan.
  2. Safitri, N, Mubarok, M Z, Winarko, R, Tanlega, Z (2018) Recovery of nickel and cobalt as MHP from limonitic ore leaching solution: Kinetics analysis and precipitate characterization. AIP Conference Proceedings, Vol. 1964, p. 020030.
  3. Mufakhir, F R, Mubarok M Z, Ichlas, Z T (2018) Leaching of silicon from ferronickel (FeNi) smelting slag with sodium hydroxide solution at atmospheric pressure. IOP Conference Series: Materials Science and Engineering. Vol. 285, Number 1.
  4. Ichlas, Z.T., Purwadaria, S. Solvent extraction separation of nickel and cobalt from a sulfate solution containing iron(II) and magnesium using Versatic 10. In AIP Conference Proceedings, Vol. 1805, pp.030003-1–030003-6.
  5. Kursunoglu, S., Ichlas, Z.T., Ibana, D.C., Kaya, M. (2016) Solvent extraction of nickel and cobalt from Caldag laterite leach solutions using Versatic 10 and Cyanex 272. In Proceedings of the 15th International Mineral Processing Symposium (IMPS) 2016, Istanbul, Turkey, pp. 658-672.
  6. Mubarok, M.Z., Ichlas, Z.T., Minwal, W.P., Dasmiranti, R., Yudiarto, A. (2016) Nickel and magnesium extraction from ferronickel smelting slag by leaching and solvent extraction. In Proceedings of the National Seminar of Metallurgy and Material IX (SENAMM IX) 2016, Cilegon, Indonesia, pp. 72-77. (In Indonesian)
  7. Tanlega, Z., Ibana, D. C. (2014) Direct solvent extraction as purifying step for nitric acid leach solution—aluminium and zinc separation with Cyanex 272. In Proceedings of the Indonesian Process Metallurgy (IPM) Conference 2014, Bandung, Indonesia, pp. 205-215.

Version: August 2022