| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a transition alumina formed body exhibiting high specific surface area and high strength even after being kept at a high temperature. <P>SOLUTION: The manufacturing method is for manufacturing the transition alumina formed body by adding water into rehydrating alumina powder and forming to make a rehydrating alumina formed body, bringing the resultant rehydrating alumina formed body into contact with water at ≥130°C in the presence of alcohols to rehydrate and firing to obtain the transition alumina formed body having 0.5-20 mm particle diameter, ≥100 m<SP>2</SP>/g BET specific surface area after being kept at 900°C for 5 hr and ≥80 daN/cm<SP>2</SP>collapse strength per unit cross sectional area. The transition alumina formed body is useful as a support for a catalyst. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
