研究了氧化钙、氢氧化钙与浓碱铝酸钠溶液的反应特性。在相同条件下 ,氧化钙的反应活性高于氢氧化钙 ,这归结于氧化钙在水化放出大量热量的同时 ,固相颗粒细化 ,比表面积增大。较多量的氧化钙加入反应体系后 ,体系主要因固相颗粒团聚容易发生膨胀。渣相的扫描电镜分析表明 :加入表面活性剂后 ,表面活性剂可能因吸附“挤占”了新生固相表面吸附的小分子 ,破坏或削弱了体系的团聚 ,从而消除了体系的膨胀 ;同时 ,表面活性剂的吸附降低了固液界面张力 ,使颗粒细化 ,从而提高了反应的比表面积 ,促进了反应的进行 The reaction characteristics of calcium oxide, calcium hydroxide and concentrated sodium aluminate solution were studied. Under the same conditions, the reactivity of calcium oxide is higher than that of calcium hydroxide, which is due to the fact that calcium oxide releases a large amount of heat during hydration and the solid phase particles are refined and the specific surface area increases. A larger amount of calcium oxide added to the reaction system, the system mainly due to solid particles agglomeration prone to expansion. Scanning electron microscopy analysis of the slag phase showed that the surfactants could destroy or weaken the agglomeration of the system by adsorbing small molecules adsorbed on the surface of the nascent solid due to the adsorption, thus eliminating the expansion of the system; at the same time, Surfactant adsorption reduces the interfacial tension at the solid-liquid interface to refine the particles, thereby increasing the specific surface area of ​​the reaction and promoting the reaction