| 摘要 |
1,171,464. Catalytic cracking. PETER SPENCE & SONS Ltd. 21 Nov., 1966 [3 Dec., 1965], No. 51348/65. Heading C5E. [Also in Division C1] Novel crystalline synthetic zeolites containing magnesium fixed irreversibly in the anionic zeolite framework, and having the empirical formula (1À0Œ0À15)Na 2 O:AR 2 O 3 :(1À5-8À0)SiO 2 : (0À01-2À0)MgO :(0-9)H 2 O may be used in selective catalytic cracking and reforming in the petroleum industry. |
