本文研究了T=900—1100℃时,PbS和PbO·SiO_2的交互反应。得出函数F(α)=(0.5-α)/((1-α)~(5/3))与t的直线关系。认为反应前期是化学控制,反应后期是扩散控制,计算出化学反应活化能ΔE=140kJ/mol,扩散活化能ΔE_D=105.8kJ/mol。
The kinetics of interaction between PbS and PbO.SiO_2 at 900--1100℃has been studied. A function F(α)=(0.5-α)/(1-α)~(5/3), α being the ratio of SO_2 evolvedin time τ to the total SO_2 to be escaped, is revealed as straight line on a plotagainst τ. The reaction seems to be under chemical or diffusion control during theprior or later stage, of which the activation energy calculated is △E=140 or △E_D=105.8 kJ/mol, respectively.
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