Synthesis of -Al2O3 Catalyst Support from Kaolin of Indonesian Origin


  • Tjokorde Walmiki Samadhi Chemical Engineering Program Faculty of Industrial Technology, Bandung Institute of Technology Bandung, Indonesia
  • Subagjo Subagjo Chemical Engineering Program Faculty of Industrial Technology, Bandung Institute of Technology Bandung, Indonesia
  • Kevin R. Lismana Chemical Engineering Program Faculty of Industrial Technology, Bandung Institute of Technology Bandung, Indonesia
  • Khasin Fuadi Chemical Engineering Program Faculty of Industrial Technology, Bandung Institute of Technology Bandung, Indonesia



Kaolin has been identified as a potential raw material for the production of -Al2O3 for hydrotreating catalyst support. This work explores the technical feasibility of applying the potassium hydroxide (KOH) e xtraction synthesis route on kaolin from the Belitung Island in Indonesia. The application of a published synthesis method to Belitung kaolin requires an approximately twofold increase in kaolin calcination time, an increase in kaolin calcination temperature from 950 to 1000 C, and a tenfold increase in metakaolin extraction time, to obtain a specific surface area higher than 200 m2/g. The highest specific surface area of 233 m2/g was obtained when the kaolin was calcined at 1000 C for 24 hours, and the metakaolin was extracted by concentrated KOH solution for 12 hours. Phase characterization of the final product confirmed the formation of -Al2O3, but with the inclusion of low-surface area -Al2O3 phase.


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How to Cite

Samadhi, T. W., Subagjo, S., Lismana, K. R., & Fuadi, K. (2013). Synthesis of -Al2O3 Catalyst Support from Kaolin of Indonesian Origin. Journal of Engineering and Technological Sciences, 43(2), 113-126.




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