| 摘要 |
PURPOSE:To enhance shock resistance, compressive strength and specific surface area by molding an aggregate composition from each specified amount of rehydrating alumina and cordierite and subjecting the composition to rehydrating treatment and thereafter sintering it at the specified temp. CONSTITUTION:The following aggregate composition is molded wherein it consists of 90-10wt% rehydrating alumina, 10-90wt% cordierite and total of rehydrating alumina and cordierite is at least >=50%. Then after subjecting this molded material to rehydrating treatment, it is calcined at 1,100-1,350 deg.C temp. to produce a catalytic carrier. As the above-mentioned rehydrating treatment of the molded material, a treating method in underwater at room temp. -100 deg.C or in steam at room temp. -150 deg.C can be adopted. The obtained carrier has the value of 5-100m<2>/g specific surface area and >=100kg/cm<2> compressive strength. |
