| abstract |
Provided are a silica-alumina powder, a method for producing the same, and a fluid catalytic cracking catalyst containing the silica-alumina powder. A silica-alumina powder containing SiO 2 within a predetermined range, having a specific surface area within a predetermined range, and having a pore volume and acid content within predetermined ranges, the alumina raw material including any of boehmite, pseudoboehmite, and predominantly amorphous alumina gel. A method for producing a silica-alumina powder including: A. a step for mixing an aqueous solution including an alumina hydrate and a silica precursor-containing aqueous solution and preparing an aqueous solution A including a silica-alumina precursor; B. a step for adjusting the pH of the aqueous solution A obtained in step A to a predetermined range, then conducting heat treatment for a predetermined treatment time range in a predetermined temperature range; and C. a step for cooling the aqueous solution or silica-alumina slurry heat treated in step B, then separating the solid matter, washing, then drying or further firing, and obtaining a silica-alumina powder. A fluid catalytic cracking catalyst including the silica-alumina powder. |