Ion-exchange isotherms have been measured at 25 ’C for the high framework charge chabazite- typezeolite, K-Gl, and involving the cation pairs: K* F^Na*,Na* Li*, Na* f^ Cs*, Na* f^ Ca2*, Na* f^ Sr2*, and Na* f^ Ba2*. The ...

Lewis acidity of alkali cation-exchanged zeolite is studied using local reactivity descriptors based on hard-soft acid–base (HSAB) concept. The local softness for nucleophilic attack (sx+), local softness for electrophilic ...

The bulk susceptibilities of cobalt-exchanged zeolites Y and A have been measured over a wide range of temperature using an enclosed Gouy balance. The magnetic properties indicate that the cobalt ions arc octahedrally ...