Metals and Materials International

, Volume 25, Issue 1, pp 257–267 | Cite as

Production of High-Grade Titanium Dioxide Directly from Titanium Ore Using Titanium Scrap and Iron Chloride Waste

  • Jungshin Kang
  • Gyeonghye Moon
  • Min-Seuk Kim
  • Toru H. Okabe


In order to produce high-grade titanium dioxide (95% TiO2) directly from a titanium ore using titanium scrap and iron chloride waste, chlorine recovery and selective chlorination processes were investigated. The mixture of titanium scrap and ferrous chloride in carbon crucible and titanium ore in quartz crucible were placed inside gas-tight quartz tube. The experiments were conducted at 1193–1248 K. Titanium tetrachloride and metallic iron were produced by the chlorination of titanium scrap in the carbon crucible, and the chlorination ratio of titanium chip was 94.6%. In the quartz crucible, 96.2% TiO2 was obtained under certain conditions by the selective removal of iron from the ore because of the reaction with the generated TiCl4. The iron removal ratio of titanium ore was 98.2%. Therefore, the feasibility of the effective use of titanium scrap and iron chloride waste for upgrading titanium ore was demonstrated in this study.


Titanium scrap Iron chloride Titanium ore Synthetic rutile Selective chlorination Chlorine recovery 



The authors are grateful to Dr. Soo Bok Jeong, Dr. Hanjung Kwon, and Mr. Susumu Kosemura for the supply of samples throughout this study. In addition, the authors thank Ms. Ahram Moon and Ms. Gahee Kim for their technical assistance. Furthermore, the authors are grateful to all the members of the Geoanalysis Department of KIGAM for their technical assistance. This research was partially supported by the Japan Society for the Promotion of Science (JSPS) through a Grant-in-Aid for Scientific Research (S) (KAKENHI Grant No. 26220910) and the Basic Research Project (18-3212) of the Korea Institute of Geoscience and Mineral Resources (KIGAM) funded by the Ministry of Science, ICT and Future Planning of Korea.

Supplementary material

12540_2018_175_MOESM1_ESM.pptx (1.4 mb)
Supplementary material 1 (PPTX 1458 kb)


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Copyright information

© The Korean Institute of Metals and Materials 2018

Authors and Affiliations

  1. 1.Strategic Minerals Utilization Research DepartmentKorea Institute of Geoscience and Mineral ResourcesDaejeonRepublic of Korea
  2. 2.Department of Resources RecyclingUniversity of Science and TechnologyDaejeonRepublic of Korea
  3. 3.Institute of Industrial ScienceThe University of TokyoTokyoJapan
  4. 4.Resources Recovery Research CenterKorea Institute of Geoscience and Mineral ResourcesDaejeonRepublic of Korea

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