以偏钛酸为原料在高浓KOH溶液中常压下低温合成六钛酸钾前驱体,然后经烧结制备六钛酸钾。实验表明,合成条件对前驱体的种类、结晶度和形貌有明显的影响,从而显著地影响了六钛酸钾的形貌和产率。水溶液中合成的二钛酸钾具有较高的反应活性,可以在较低温度下经一次烧结制备出六钛酸钾晶须。 Titanic acid is used as raw material to synthesize potassium hexatitanate precursor under low pressure in high-concentration KOH solution at atmospheric pressure, and then the potassium hexatitanate is prepared through sintering. The experimental results show that the synthesis conditions have obvious influence on the type, crystallinity and morphology of the precursors, which significantly affects the morphology and yield of potassium hexatitanate. Potassium dititanate synthesized in aqueous solution has high reactivity and can be prepared by sintering at a lower temperature.