METHOD FOR PRODUCING AMORPHOUS ALUMINOSILICATE PARTICLE POWDER

To provide a method for producing amorphous aluminosilicate particle powder having a high specific surface area and excellent gas adsorption performance, in which production efficiency is improved.SOLUTION: A method for producing amorphous aluminosilicate particle powder comprises adding a flocculant containing an inorganic metal salt, an ammonium salt, or a mixture thereof in an amount of 0.1 to 20 wt.% in terms of inorganic metal and NH4 to a solid content of a slurry at the time of hydrothermal reaction, with the solid content of the slurry at the time of the hydrothermal reaction being 50 to 300 g/L, and thereafter washing with water.SELECTED DRAWING: Figure 4 【課題】高比表面積を有し優れたガス吸着性能を有する非晶質アルミノケイ酸塩粒子粉末の製造方法において、生産効率向上させた製造方法の提供。【解決手段】水熱反応時のスラリー固形分濃度が５０〜３００ｇ／Ｌであり、かつ水熱反応時のスラリーの固形分に対し無機金属塩、アンモニウム塩又はこれらの混合物を含む凝集剤を無機金属及びＮＨ４換算で０．１〜２０重量％添加した後水洗を行う非晶質アルミノケイ酸塩粒子粉末の製造方法。【選択図】図４