单态铝酸根离子与单态硅酸根离子反应的研究

Studies on the Reaction Between Mono-aluminate Anions and Mono-silicate Anions

研究了碱性条件下单态铝酸根离子与单态硅酸根离子的反应．实验结果表明，生成的硅铝酸盐沉淀与溶液中的Ａｌ、Ｓｉ以及ＯＨ￣－浓度有关．反应过程中存在过饱和现象．反应体系的ＯＨ￣－浓度和反应物Ｓｉ／Ａｌ比影响过饱和时间和过饱和区．

The reaction between mono-aluminate anions and mono-silicate anions in solution has been studied. Experimental results show that aluminosilicate precipitate is formed during the reaction.[Al],[Si] and[OH￣-]in the solution affect the formation of the precipitate and when the reaction reach the equilibrium,[Si][Al]/[OH￣-]￣2=1.0×10￣(-3).The phenomenon of supersaturation exists during the reaction, which is affected by Si/Al and [OH￣-] in reaction mixture.