Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Fabrication of Activated Alumina Using Aluminum Hydroxide by a Hydrothermal Process

수산화알루미늄으로부터 수열법을 이용한 활성 알루미나 제조에 관한 연구

  • Bae, Hyeon Cheol (Department of Advanced Materials Science and Engineering, Mokpo National University) ;
  • Lee, Sang-Jin (Department of Advanced Materials Science and Engineering, Mokpo National University)
  • 배현철 (목포대학교 신소재공학과) ;
  • 이상진 (목포대학교 신소재공학과)
  • Received : 2013.09.29
  • Accepted : 2013.11.11
  • Published : 2013.11.30
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Abstract

Activated alumina was fabricated with aluminum hydroxide in this study. High-purity alumina gel and boehmite were prepared from aluminum hydroxide by a hydrothermal process and fired to activate alumina having a surface area of 380 ~ 480 $m^2/g$ with less loss of ignition. The aging and drying condition during the fabrication process affected the loss of ignition, the sedimentation time of the alumina suspension, as well as the surface area of the activated alumina. For pellet-type activated alumina, the pre-fired alumina gel and boehmite were press-formed and fired at $400^{\circ}C$ and $550^{\circ}C$ for 6 h, respectively. The fired pellets showed a low density of 2.0 ~ 2.2 $g/cm^3$ with 20% firing shrinkage and sufficient handling strength. In this study, a new fabrication process for high-quality activated alumina with aluminum hydroxide is introduced. The effects of the processing parameters on the activated alumina properties are also examined.

Keywords

References

  1. R. Roy, S. Ghosh, and P. Poddar, "Development of Activated Alumina and Its Effect on the Properties of Cement Free Castable Refractories," Trans. Indian Ceram. Soc., 68 [1] 31-4 (2009). https://doi.org/10.1080/0371750X.2009.11082159
  2. Y. Tan, F. Li, and X. Yi, "A Novel Method for Preparation of Activated Alumina," Chin. J. Catal., 29 [10] 975-78 (2008).
  3. G. Y. Li, J. P. Zhi, and Y. L. Zhang, "Pore Structure Control of Activated Alumina," J. Inorg. Chem., 23 [4] 563-68 (2007).
  4. J. Li, Z. Gao, and Y. Chen, "A Study on Preparation of Activated Alumina Carrier," J. Hebei. U. Technol., 36 [1] 60-3 (2007).
  5. M. N. Saridede, Z. Cizmecioglu, and S. Degerli, "The Production of Activated Alumina from Aluminium Hydroxide Crust," Can. Metall. Q., 44 [1] 131-36 (2005). https://doi.org/10.1179/cmq.2005.44.1.131
  6. J. J. Guzman, C. A. Contreras, and S. Sugita, "Activated Alumina from Pseudoboehmite Derivative of an Aluminum Basic Sulphate," Light. Met., 143-48 (1995).
  7. A. S. C. Chen, V. L. Snoeyink, and J. Mallevialle, "Activated Alumina for Removing Dissolved Organic Compounds," Am. Water Works Assoc., 81 [1] 53-60 (1989).
  8. H. Brattebo and H. Odegaard, "Phosphorus Removal by Regular Activated Alumina," Water Res., 20 [8] 977-86 (1986). https://doi.org/10.1016/0043-1354(86)90039-4
  9. R. F. Vogel, G. Marcelin, and W. L. Kehl, "The Preparation of Controlled Pore Alumina," Appl. Catal., 12 [2] 237-48 (1984). https://doi.org/10.1016/S0166-9834(00)80294-8
  10. J. Steigman, "Chemistry of the Alumina Column," Int. J. Appl. Radiat. Isot., 33 [10] 829-34 (1982). https://doi.org/10.1016/0020-708X(82)90124-7
  11. S. W. Lee, Y. H. Ha, and J. S. Mun, "The Phase Transition Behavior and Characterization of Aluminium Hydroxide by Heating Treatment," Kor. Mater. Soc., 2003 Spring Conference, 189-98 (2003).
  12. K. W. Jun and E. O. OH, "Process for Preparation of Activated Alumina from Al Dross" Kor. Pat. No.: 10-0052136, (Feb. 07, 2006).
  13. J. L. Leloarer and C. Nedez, "Alumina Agglomerates, the Preparation Method Thereof and Use of Same as an Absorbent or Catalyst Carrier," Kor. Pat. No.: 10-0880237, (Jan. 16, 2009).
  14. H. W. Lee, B. K. Park, M. Y. Tian, and J. M. Lee, "Relationship between Properties of Pseudo-boehmite and Its Synthetic Conditions," J. Ind. Eng. Chem., 12 [2] 295-300 (2006).
  15. Z. Shuqin, P. Xinmei, and D. Changyan, "Study and Characterization of Pseudo-Boehmite Synthesized by Acid Method," Pet. Process Petrochem., 33 [7] 58-61 (2002).