Phases of combustion and leached products were confirmed by XRD, which proves that the three-step leaching technic is feasible.
由XRD分析确定了燃烧产物以及各个阶段的浸出产物相组成，证实了三步浸出方案的可行性。
2
The combustion products are double phases' systems.
燃烧产物是两相系统。
3
The transformation from metakaolinite to inert phases was promoted by the combustion of coal content at air atmosphere, whereas was inhibited at carbon dioxide atmosphere.