| 摘要 |
PROBLEM TO BE SOLVED: To obtain a ceramic porous support, useful as a support for a zeolite film and producible at a low cost. SOLUTION: This ceramic porous support for forming a zeolite film is a sintered crystal mainly comprising a mullite crystal or mainly comprising a mixed crystal of the mullite crystal with an alumina crystal at (60/40) to (78/22) weight ratio of the Al2 O3 /SiO2 . The ceramic porous support has >=92wt.% total amount of the Al2 O3 and SiO2 , 0.5-3μm average crystal grain diameter, 0.1-2μm each of the mode diameter and 50% diameter of the pore diameter, 35-50% porosity and 2-7 average aspect ratio of the mullite crystal. |
