The technique is composed of particle size grading, dry collection and superfine grinding, for recovery of the fines produced during preparation of FCC catalyst, so as to enhance yield of catalyst and reduce fines emission to atmosphere.

• 叙述了采用粒度分级 干式捕集 超细研磨组合技术回收流化催化裂化催化剂在制造过程所产生的细粉以提高催化剂收率并降低排入大气中的粉尘含量