and pressures from 0.1–100 kPa based on product gas analysis at near isothermal
conditions. For all temperatures the initial rate of carbothermal reduction increased inversely
with pressure, and between conversions of 20–35% a transition occurred after which the
reaction rate was maximum at 10 kPa. Analysis of reacted pellets showed that the reaction
stoichiometry, the ratio of C to MgO reacted, was less than unity and decreased with …