| 摘要 |
Zeolites containing mixed cations are conveniently prepared by saturating the zeolites with the less strongly held cation, and then injecting the more strongly held cations in a pulse in a recirculating brine solution containing the less strongly held cation. The more strongly held cation is thus exchanged with the less readily held cation on the surface of the zeolite, after which the particles are allowed to equilibrate, with the distribution of the cations within the particles approaching an equilibrium value.
|
