초록 ▼

Mesoporous, alumina compositions having an average pore diameter substantially ranging from about 15 .ANG. to about 40 .ANG. and an average surface area of no less than about 500 meter square/gram are disclosed. These materials can be formed by treating an aluminum source that is derived from an alu

Mesoporous, alumina compositions having an average pore diameter substantially ranging from about 15 .ANG. to about 40 .ANG. and an average surface area of no less than about 500 meter square/gram are disclosed. These materials can be formed by treating an aluminum source that is derived from an aluminum alkoxide in an organic-aqueous solution with an organic structured directing agent to form meso-sized micelles followed by calcination of the resulting composition. Appropriate organic structural directing agents are alkyl carboxylic acids.

대표청구항 ▼

[ We claim:] [1.] A process for forming a mesoporous alumina having an average pore diameter which ranges from about 15 .ANG. to about 40 .ANG., which comprises treating an aluminum source which is derived from an aluminum alkoxide by reaction with water in organic solvent, in an organic-aqueous sol

[ We claim:] [1.] A process for forming a mesoporous alumina having an average pore diameter which ranges from about 15 .ANG. to about 40 .ANG., which comprises treating an aluminum source which is derived from an aluminum alkoxide by reaction with water in organic solvent, in an organic-aqueous solution, with an organic structure directing agent to form meso-sized micelles and hydrothermally treating the resulting composition, and recovering said alumina.