B PERFORMING OPERATIONS; TRANSPORTING
B01 PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
B01J2229/00 Aspects of molecular sieve catalysts not covered by B01J29/00
B01J2229/10 After treatment, characterised by the effect to be obtained
B01J2229/18 to introduce other elements into or onto the molecular sieve itself
B01J2229/186 not in framework positions