| 摘要 |
PROBLEM TO BE SOLVED: To provide a catalyst having a high selectivity of a conversion from ethylene or ethanol to propylene. SOLUTION: A propylene producing catalyst comprises phosphate-based zeolite solid acids having a particle diameter of≤10μm, or a propylene producing catalyst is a solid acid catalyst consisting of SAPO-34, and satisfies the condition in which a composition ratio of a catalytic component: Si/(Si+Al+P) (in this regard, however, a molar ratio) is≤0.1. COPYRIGHT: (C)2009,JPO&INPIT
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