G. Orhan et C. Arslan, Investigating the effects of charge components on metallic chromium production via the aluminothermic route with no external energy, MIN MET PR, 16(3), 1999, pp. 62-64
The possibility of producing metallic chromium Si-om Cr2O3 via rite alumino
thermic route, with no external energy supply, was the subject of th is lab
oratory-scale research. The experimental study focused on investigating the
individual effects and quantitative optimization of the charge contents, i
.e., the additions of CrO3, A I powder and CaO (or BaO). The highest chromi
um recovery of 98% was attained with rile additions of 12% CrO3 and 1.2 tim
es the stoichiometrically required amount of Al powder. nle optimum CaO add
ition giving the highest chromium recovery was found when the CaO/Al weight
ratio in the charge was equal to 0.3. When BaO was used, however, 95% CI e
xtraction efficiency was obtained at a BnO/Al weight ratio of 0.15.