Paper Title:
Activated Alumina Adsorbent Developed from Waste Aluminum Sludge
  Abstract

Alumina adsorbent was synthesized from waste aluminum sludge in this research. The nitrogen isothermal adsorption method (77K) is applied to measure the BET specific surface area and pore structure of activated alumina at different activation temperatures. The research results indicate that, thermal treatment has huge influences on the test sample’s specific surface area and pore structure. Its specific surface area and pore volume expand and then diminish, whereas the holding time rises, getting its peak of 348 m² /g and 0.55 (cm³ /g) respectively at the activation temperature of 600°C and holding time for 1 hour. The average pore diameter value increases along with the lengthening of activation temperature and holding time, reaching the maximum of 11nm at activation temperature of 750°C and holding time for 4 hours. After comprehensive analysis, the activation temperature of 600°C and holding time for 1 hour are determined as ideal conditions for activated alumina respectively.

  Info
Periodical
Key Engineering Materials (Volumes 336-338)
Edited by
Wei Pan and Jianghong Gong
Pages
1886-1888
DOI
10.4028/www.scientific.net/KEM.336-338.1886
Citation
Y. Yu, Y. Z. Ruan, "Activated Alumina Adsorbent Developed from Waste Aluminum Sludge", Key Engineering Materials, Vols. 336-338, pp. 1886-1888, 2007
Online since
April 2007
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Price
$32.00
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