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该专利涉及一种裂化催化剂及其制备方法。该催化剂含有15%~50%(质量分数,下同)的黏土,1%~40%的源自硅溶胶的SiO2,5%~30%的源自氧化铝和/或氧化铝前体的Al2O3,5%~50%的分子筛。该催化剂的制备方法为:(A)将黏土与硅溶胶混合打浆;(B)将步骤(A)打浆所得浆液与氧化铝和/或氧化铝
The patent relates to a cracking catalyst and a preparation method thereof. The catalyst contains 15% to 50% (mass fraction) of clay, 1% to 40% of silica sol derived silica, 5% to 30% of alumina derived from alumina and / or alumina precursor , 5% ~ 50% molecular sieve. The catalyst is prepared by: (A) mixing clay and silica sol to beaten; (B) mixing the slurry obtained in step (A) with alumina and / or alumina