在SBA-15介孔材料100 L中试和2 m3工业放大合成基础上,采用多次水解合并晶化、母液循环使用和以工业正硅酸乙酯(TEOS)原料为硅源三种改良方法,提高SBA-15材料的合成效率,减少废酸水排放和降低原料成本.结果表明,母液经加热蒸除乙醇至5％和工业原料TEOS经蒸除沸点低于163C的前馏分后使用,在有效保证合成出结构性能良好SBA-15材料的同时,可使生产效率提高1倍,分别减少50％和90％三嵌段共聚物和盐酸用量,且几乎无废水排放,最终节约SBA-15原料成本约60％.这些改良方法有利于SBA-15材料工业生产时的环境保护和成本控制,具有很高可行性.
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