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以 H2SO4、(NH4)2SO4为焙烧助剂对粉煤灰进行焙烧-水浸处理，提取粉煤灰中 Al 组分，其剩余的残渣作为一种二次废弃物保留了大量的非晶态 Si O2组元，以提取铝组分后富含非晶态 Si O2的残渣为原料，首先在 Ca、Si 摩尔比为 0.5、0.67、0.83、1.16 条件下调配 Ca O-Al2O3-Si O2-H2O 体系凝胶，在探索最佳水热条件制备出铝代托贝莫来石的同时深入研究其形成机制，并对合成的系列 1.1 nm 铝代托贝莫来石粉体进行表征，结果表明：在水热反应环境下，凝胶不断晶化，随着体系温度的不断升高，在形成的莫来石晶体结构当中发生了 Al 对 Si 的同型取代，伴随着反应温度继续增大，1.1 nm 铝代托贝莫来石可进一步转化为加藤石。
Fly ash was calcined and flooded with H2SO4 and (NH4) 2SO4 as roasting additives to extract the Al component in fly ash. The remaining residue as a secondary wastes retained a large amount of amorphous Si O2 component, after extracting the aluminum component, the residue rich in amorphous Si O2 is used as a raw material. First, the CaO-Al2O3-Si O2-H2O system is prepared under the conditions of Ca, Si molar ratio of 0.5, 0.67, Gel to investigate the formation mechanism of Al-titanobium-mullite while exploring the optimal hydrothermal conditions. The synthesized series of 1.1-nm Al-supported toboben-Mollite powders were characterized. The results show that in the In the hydrothermal reaction environment, the gel crystallizes continuously. As the temperature of the system increases, the isomorphous substitution of Al for Si takes place in the formed mullite crystal structure. With the reaction temperature increasing, Dayobobe mullite can be further transformed into Kato stone.