Rare-earth Y zeolite is a kind of crystal molecular sieve whose framework contains rare earth metals.It is a kind of silicon aluminate whose framework contains rare earth.It is used in the production of catalytic cracking (FCC) catalyst . Technical parameter: Crystallinity: 50% min Na2O: 2.0% max RE2O3:10.0- 16.0% min Appearance: light yellow powder . Packing: Anti-corrosion PP bags of 25 kg / bag.