Paper Title:
Carbothermal Reduction of Alumina in a Vacuum
  Abstract

The carbothermal reduction of alumina in a vacuum was investigated by XRD and thermodynamic analysis. Experiments on mixtures of alumina and graphite in a vacuum furnace at 1743-1843K proved that the residues consisted of Al2O3and C, and the deposits formed on the upper wall of the crucible contained Al4O4C, C, Al4C3 and Al2O3. Thermodynamic analysis indicated that alumina should react with carbon to form gaseous Al2O and Al above 1671K and 1713K at 100Pa respectively, Al2O and Al react back with CO to form Al4O4C, C, Al4C3 and Al2O3, which constitute deposits.

  Info
Periodical
Advanced Materials Research (Volumes 156-157)
Edited by
Jingtao Han, Zhengyi Jiang and Sihai Jiao
Pages
1688-1691
DOI
10.4028/www.scientific.net/AMR.156-157.1688
Citation
Y. B. Feng, B. Yang, Y. N. Dai, "Carbothermal Reduction of Alumina in a Vacuum", Advanced Materials Research, Vols. 156-157, pp. 1688-1691, 2011
Online since
October 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Dae Joon Kim, Deuk Yong Lee, Jung Suk Han
831
Authors: R. Svinka, V. Svinka, G. Bula, T. Juettner, E. Palcevskis
Abstract:Light weight materials are produced according to the aerated concrete technology using slurries. In concentrated suspensions pore formation...
2266
Authors: Hong Tao Jiang, Xiu Feng Wang, Bao Cheng He, Cheng Long Yu
Abstract:A novel rapid prototyping technology for glass-alumina functionally gradient materials (G-A FGMs) based on the quick solidification of wax...
679
Authors: Mahdi Ghassemi Kakroudi, Shahin Khameneh Asl
Abstract:A pulse-echo technique, based on ultrasonic "long-bar" mode (LBM) velocity measurements, working up to 1700°C is described. Magnetostrictive...
59
Authors: Yue Bin Feng, Qing Chun Yu, Bin Yang, Yong Nian Dai
Chapter 1: Environmental Chemistry, Chemical Manufacturing, Technologies and Engineering
Abstract:The extraction of aluminum by the AlCl disproportionation process in vacuum was researched using the furnace designed by ourselves. The...
262