And a multi-scale structure, and contains aluminum phosphate binder having good mechanical strength, alumina-based materials, and methods of preparation thereof

摘要

The present invention is a material in the form of a millimeter-scale thereof, and the large alumina particles having a median diameter of 10~200μm, and small alumina particles with a median diameter of 0.5~10μm, the aluminum phosphate comprising consists of a binder, wherein the large particles are divided into separate interfaces from one interface at less than 10μm, wherein the small particles are separated from one interface to another interface at less than 5μm, and, between the large particles Located in the space, wherein the binder is located in the space between the small and large particles, mesopore volume measured by mercury porosimetry of said material is a 0.2~2mL / g, porosimetry macropore volume measured by is 0.05~0.2mL / g, BET specific surface area is 80~350m ² / g, about the material.