B01J29/00

Catalysts comprising molecular sieves [2]

Note(s) In this group, the following term is used with the meaning indicated:[6] "zeolites" means: crystalline aluminosilicates with base-exchange and molecular sieve properties, having three dimensional, microporous lattice framework structure of tetrahedral oxide units;compounds isomorphous to those of the former category, wherein the aluminium or silicon atoms in the framework are partly or wholly replaced by atoms of other elements, e g  by gallium, germanium, phosphorus or boron