Enhanced methods of crystallization: The crossover synthesis from gel to melt flow - A case study on sodalites

摘要

A new crystallization pathway composed of a combination of gel synthesis and crystallization in a melt flow is demonstrated using the sodalite system as a case study. The specific characteristics of this enhanced method of crystallization persists in a controlled heating of a pressed pellet of a mixture of selected solids, containing a "water donator" as well as a "fluxing agent". The reaction of zeolite 13 X ("water donator and Si-Al-source") NaOH granulate ("fluxing agent") and a template salt like NaCl (or others) is shown to yield suitable products already after a few hours of heating the mix-pellet under open conditions.