• Wiwik Dahani Universitas Trisakti
  • Riskaviana Kurniawati Universitas Trisakti
  • Rita Sundari Universitas Mercu Buana
  • Irfan Marwanza Universitas Trisakti
  • Faisal Rachman Universitas Trisakti



Roasting Temperature, Roasting Time, Zinc Analysis, XRD, XRF


This paper has analyzed dominant zinc element in sphalerite naturally found together with galena in mineral ore. Since pyrometallurgical route related to roasting process is very common to mineral dressing, therefore, this investigation has studied the effect of varied roasting time (30 min, 60 min, and 90 min) and temperature (500oC, 600oC, and 700oC) on zinc mineral examination using XRD (X-Ray Diffraction) and zinc element using XRF (X-Ray Fluorescence) analyses. Previous studies usually applied cheaper AAS (Atomic Absorption Spectrometer) for zinc analysis in aqueous solution, however, sphalerite is a solid matrix and therefore, this study has applied XRF to analyze zinc. Pyrometallurgical process of zinc mineral in sphalerite is related to mineral transformation in the form of ZnSO4, ZnS, and ZnO that cannot be detected by XRF. Therefore, this study has used XRD that can observe mineral transformation.   The XRD pattern shows four intense peaks at 2θ (28o, 47o, 56o, and 76o) justified sphalerite (ZnS) sample with little amount of pyrite (FeS2) and galena (PbS) as impurities. The XRF analysis shows from 30 min to 90 min, the Zn content has increased remarkably at 700oC and Zn content looked stagnant at 500oC, while Zn content increased dramatically from 60 min to 90 min at 600oC. During roasting process at high temperature, ZnS mineral converted to ZnO and expelled SO2 gas due to oxidation reaction causing weight reduction. The study is valuable for mineral processing in searching for optimization.

Author Biographies

Riskaviana Kurniawati, Universitas Trisakti

Lecturer at The Department of Mining Engineering, Universitas Trisakti, Jakarta

Rita Sundari, Universitas Mercu Buana

Senior Lecturer at Department of Mechanical Engineering, Universitas Mercu Buana, Jakarta

Irfan Marwanza, Universitas Trisakti

Senior Lecturer at The Department of Mining Engineering, Universitas Trisakti, Jakarta

Faisal Rachman, Universitas Trisakti

Student at The Department of Mining Engineering, Universitas Trisakti, Jakarta


Wiwik Dahani, Rita Sundari, Subandrio, Irfan Marwanza, Ivetta, “Comparative study using low cost acetic and sulfuric acids on roasting and peroxide for leaching process to extract Pb from galena”, International Journal of Innovation in Mechanical Engineering & Advanced Materials, v. 4, n. 2, pp. 51-57, August 2022. Doi: 10.22441/ijimeam.v4i2.17135.

Mingzhi Wang, Runsheng Han, Weiwei Zhou, Shunchuan Wu, Danhui Song, “Active ages of metallogenic structures in the Liangyan lead-zinc deposit, northwestern Guizhou: Constraints from geometric, kinematic, and sphalerite Rb-Sr dating analyses”, Ore Geology Reviews, v. 158, 105518, July 2023.

Max Frenzel, Tamino Hirsch, Jens Gutzmer, “Gallium, germanium, indium, and other trace and minor elements in sphalerite as a function of deposit type-A meta-analysis”, Ore Geology Reviews, v. 76, pp. 52-78, July 2016. Doi: 10.1016/j.oregeorev.2015.12.017.

Wang, Ji, Cheng, Li, Cao, Chen, “Selective flotation separation of galena from sphalerite via chelation collectors with different nitrogen functional groups’, Applied Surface Science, v. 568, 150956, December 2021. Doi: 10.1016/J.APSUSC.2021.150956.

Fan Zhang, Chang Wei, Zhigan Deng, Xingbin Li, Cunxiong Li, Minting Li, “Reductive leaching of indium-bearing zinc residue in sulfuric acid using sphalerite concentrate as reductant”, Hydrometallurgy, v. 161, pp. 102-106, May 2016. 01.029.

Tang Haiwen, Deng Zhengbin, Tang Yun, Tong Xiong, Wei Zhongqi, “Hotspots and trends of sphalerite flotation: Bibliometric analysis”, Separation and Purification Technology, v. 312, 123316, May 2023.

Tiu Glacialle, Ghorbani Yousef, Jansson Nils, Wanheinen Christina, Bolin Nils-Johan, “Ore mineral characteristics as rate-limiting factors in sphalerite flotation: Comparison of the mineral chemistry (iron and manganese content), grain size, and liberation”, Minerals Engineering, v. 185, 107705, July 2022.

Chen Yuangan, Feng Bo, Peng Jinxiu, Wang Ziming, “Selective flotation of galena from sphalerite using a combination of KMnO4 and carboxylated chitosan”, Applied Surface Science, v. 602, 154412, November 2022.

Zhu Huanyu, Yang Bingqiao, Martin Rudolph, Zhang Hanquan, He Dongsheng, Luo Huihua, “Flotation separation of galena from sphalerite using hyaluronic acid (HA) as an environmental-friendly sphalerite depressant”, Minerals Engineering, v. 187, 107771, September 2022.

Sayaf Mustafa, Luo Liqun, Niyonzima Jean Christophe, Zheng Bo-Tao, Wei Chen-Xi, Lei Yanming, Longchuan Yan, Jia Ting, Mohammed Kabashi, “Novelty on deep reduction roasting through removal of lead and zinc impurities from iron ore afore iron making”. Powder Technology, v. 428, 118857, October 2023.

Faisal Fathi Rachman, Analisis Pengaruh Waktu dan Temperatur Pemanggangan Konsentrat Sphalerite Terhadap Perolehan Seng, Thesis Sarjana, Program Studi Teknik Pertambangan, Universitas Trisakti, Jakarta, 2023.

Gharbi Omaima, In-situ investigation of elemental corrosion reactions during the surface treatment of Al-Cu and Al-Cu-Li alloys, PhD Thesis, Department of Physical and Analytical Chemistry, Universite Pierre et Marie Curie, Paris, 2016.

Uo, M., Wada, T., Sugiyama, T., “Applications of X-ray fluorescence analysis (XRF) to dental and medical specimens”, Japanese Dental Science Review, February 2015. j.jdsr. 2014.07.001.

Sun Yi, Shen Xiaoyi, Zhai Yu-Chun, “Thermodynamics and kinetics of extracting zinc from zinc oxide ore by ammonium sulfate roasting method”, International Journal of Minerals, Metallurgy and Materials, v. 22, n. 5, pp. 467-475, May 2015.

Xian Xie, Kai Hou, Bo Yang, Xiong Tong, “Activation of sphalerite by ammoniacal copper solution in froth flotation, Journal of Chemistry, pp. 1-6, April 2016.

Adi Subardi, “Sifat termal, elektrokimia dan struktur mikro oksida perovskit ganooda sebagai material katoda SOFC beroperasi pada suhu menengah”, Rekayasa Mesin, v. 13, n. 3, pp. 787-794, December 2022.

Tri Arini, Latifa Hanum Lalasari, Iwan Setiawan, Lia Andriyah, Nadia Chrisayu Natasha, Fariza Eka Yunita, “Struktur kristal dan morfologi permukaan sintesis SnO2 menggunakan metode sol gel”, Rekayasa Mesin, v. 13, n. 2, pp. 427-433, August 2022.

Wang Changtao, Liu Runqing, Sun Wei, Jing Nianwen, Xie Feifei, Zhai Qilin, He Dongdong, “Selective depressive effect of pectin on sphalerite flotation and its mechanisms of adsorption onto galena and sphalerite surfaces” Minerals Engineering, v. 170, 106989, August 2021. j.mineng.2021.106989.