Abstract
The kinetics of a fundamental reaction of the aluminum subhalide process, 2Al(l)+AlCl3(g)=3AlCl(g), was studied by the flow method under a reduced pressure of trichloride at 900∼1100°C.
The reaction rate increased with the increase in the flow rate of trichloride, namely its pressure. As a result of the present experiment, the reaction rate was expressed by the following equation:
V=1.28PAlCl34⁄3e−11800⁄RT (Al g/cm2·min).
The apparent activation energy of this reaction was 11.8 kcal/mol. The reaction ratio of AlCl3 increased with rising temperature and lowering trichloride pressure.
