【摘要】 以SiO₂与BaCO₃反应为例,探讨了反应物比例对固相反应速度的影响。实验结果表明:在同一反应体系中,如果反应物的颗粒尺寸相同（或不相同）时。改变反应物间的比例,对固相反应速度有不同影响,BaCO₃与SiO₂摩尔比例为2:1时,固相反应速度最大;同比例同时间SiO₂颗粒尺寸不同时,BaCO₃与2^#SiO₂的反应速度明显增大。更多还原

【Abstract】 In this paper, given the reaction of SiO₂-BaCO₃ system as an example, the effects of reactants ratio on solid phase reaction velocity were discussed. The results showed that in the same reaction system if the reactant particle size was same （or different） changing the reactants ratio had different effect on reaction velocity. When the molar ratio of BaCO₃ and SiO₂ was 2:1, the solid phase reaction velocity was the fastest. Under the condition of same ratio, same reaction time and different particle size of SiO₂, the reaction velocity of BaCO₃ and 2#SiO₃ obviously became fast.更多还原