KC-601 alumina-based desiccant is by the high surface area of ??the activated alumina and other active ingredients, using a special process is prepared in an efficient desiccant, which is a porous, high dispersion of the solid material,large surface area, its microporous surface has a peculiar adsorption properties of the surface activity and the excellent thermal stability and strong affinity with water. Uniform pore distribution of the agent, the pore size is suitable for the high water absorption of large pore volume, bulk density, good mechanical properties, has a good absorbency.